Author: "Gerber, J. P." / Topic: particle physics - experiment - Searchworks@Jio Institute Digital Library Search Results

Your search keyword '"Gerber, J. P."' showing total 68 results

Start Over Author "Gerber, J. P." Topic particle physics - experiment

68 results on '"Gerber, J. P."'

1. Measurement of |Vcs| using W decays at LEP2

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G. D., Alemany, R., Allport, P. P., Almehed, S., Amaldi, U., Amato, S., Anassontzis, E. G., Andersson, P., Andreazza, A., Antilogus, P., Apel, W-D, Arnoud, Y., Åsman, B., Augustin, J-E, Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barbiellini, G., Barbier, R., Bardin, D. Y., Barker, G., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K-H, Begalli, M., Beilliere, P., Belokopytov, Y., Belous, K., Benvenuti, A. C., Berat, C., Berggren, M., Bertini, D., Bertrand, D., Besancon, M., Bianchi, F., Bigi, M., Bilenky, M. S., Bizouard, M-A, Bloch, D., Bonesini, M., Bonivento, W., Boonekamp, M., Booth, P. S. L., Borgland, A. W., Borisov, G., Bosio, C., Botner, O., Boudinov, E., Bouquet, B., Bourdarios, C., Bowcock, T. J. V., Boyko, I., Bozovic, I., Bozzo, M., Branchini, P., Brenke, T., Brenner, R. A., Bruckman, P., Brunet, J-M, Bugge, L., Buran, T., Burgsmueller, T., Buschmann, P., Cabrera, S., Caccia, M., Calvi, M., Camacho Rozas, A. J., Camporesi, T., Canale, V., Canepa, M., Carena, F., Carroll, L., Caso, C., Castillo Gimenez, M. V., Cattai, A., Cavallo, F. R., Cerruti, C., Chabaud, V., Chapkin, M., Charpentier, P., Chaussard, L., Checchia, P., Chelkov, G. A., Chen, M., Chierici, R., Chliapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Collins, P., Colomer, M., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Cowell, J-H, Crawley, H. B., Crennell, D., Crosetti, G., Cuevas Maestro, J., Czellar, S., Dalmagne, B., Damgaard, G., Davenport, M., Da Silva, W., Deghorain, A., Della Ricca, G., Delpierre, P., Demaria, N., Angelis, A., Boer, W., Brabandere, S., Clercq, C., Lotto, B., Min, A., Paula, L., Dijkstra, H., Di Ciaccio, L., Di Diodato, A., Djannati, A., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Drees, K. -A, Dris, M., Duperrin, A., Durand, J-D, Ehret, R., Eigen, G., Ekelof, T., Ekspong, G., Ellert, M., Elsing, M., Engel, J-P, Erzen, B., Espirito Santo, M., Falk, E., Fanourakis, G., Fassouliotis, D., Fayot, J., Feindt, M., Fenyuk, A., Ferrari, P., Ferrer, A., Fichet, S., Firestone, A., Fischer, P. -A, Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, A. G., Fruhwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gandelman, M., Garcia, C., Garcia, J., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, E. N., Gele, D., Gerber, J-P, Ghodbane, N., Gil, I., Glege, F., Gokieli, R., Golob, B., Goncalves, P., Gonzalez Caballero, I., Gopal, G., Gorn, L., Gorski, M., Gouz, Y., Gracco, V., Grahl, J., Graziani, E., Green, C., Grefrath, A., Gris, P., Grzelak, K., Gunther, M., Guy, J., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Harris, F. J., Hedberg, V., Heising, S., Henriques, R., Hernandez, J. J., Herquet, P., Herr, H., Hessing, T. L., Heuser, J. -M, Higon, E., Holmgren, S-O, Holt, P. J., Holthuizen, D., Hoorelbeke, S., Houlden, M., Hrubec, J., Huet, K., Hultqvist, K., Jackson, J. N., Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Johansson, E. K., Jonsson, P., Joram, C., Juillot, P., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, E. C., Keranen, R., Khomenko, B. A., Khovanski, N. N., Kiiskinen, A., King, B., Kjaer, N. J., Klapp, O., Klein, H., Kluit, P., Knoblauch, D., Kokkinias, P., Koratzinos, M., Kourkoumelis, C., Kouznetsov, O., Krammer, M., Kreuter, C., Kriznic, E., Krstic, J., Krumstein, Z., Kubinec, P., Kucewicz, W., Kurvinen, K., Lamsa, J. W., Lanceri, L., Lane, D. W., Langefeld, P., Lapin, V., Laugier, J-P, Lauhakangas, R., Ledroit, F., Lefebure, V., Leinonen, L., Leisos, A., Leitner, R., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liko, D., Lipniacka, A., Lippi, I., Loerstad, B., Loken, J. G., Lopes, J. H., Lopez, J. M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., Macnaughton, J., Mahon, J. R., Maio, A., Malek, A., Malmgren, T. G. M., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J-C, Mariotti, C., Markou, A., Martinez-Rivero, C., Martinez-Vidal, F., Marti I Garcia, S., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., Mc Cubbin, M., Mc Kay, R., Mc Nulty, R., Mc Pherson, G., Meroni, C., Miagkov, A., Migliore, E., Mirabito, L., Mitaroff, W. A., Mjoernmark, U., Moa, T., Moeller, R., Moenig, K., Monge, M. R., Moreau, X., Morettini, P., Morton, G., Muenich, K., Mulders, M., Mulet-Marquis, C., Muresan, R., Murray, W. J., Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Navarria, F. L., Navas, S., Nawrocki, K., Negri, P., Nemecek, S., Neufeld, N., Neumann, W., Neumeister, N., Nicolaidou, R., Nielsen, B. S., Nieuwenhuizen, M., Nikolaenko, V., Nikolenko, M., Nomokonov, V., Normand, A., Nygren, A., Obraztsov, V., Olshevski, A. G., Onofre, A., Orava, R., Orazi, G., Osterberg, K., Ouraou, A., Paganini, P., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, T. D., Papageorgiou, K., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Pegoraro, M., Peralta, L., Pernicka, M., Perrotta, A., Petridou, C., Alessandro Petrolini, Phillips, H. T., Piana, G., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Pol, M. E., Polok, G., Poropat, P., Pozdniakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rakoczy, D., Rames, J., Ratoff, P. N., Read, A. L., Rebecchi, P., Redaelli, N. G., Regler, M., Reid, D., Reinhardt, R., Renton, P. B., Resvanis, L. K., Richard, F., Ridky, J., Rinaudo, G., Rohne, O., Romero, A., Ronchese, P., Rosenberg, E. I., Rosinsky, P., Roudeau, P., Rovelli, T., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovsky, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Schneider, H., Schwemling, P., Schwickerath, U., Schyns, M. A. E., Scuri, F., Seager, P., Sedykh, Y., Segar, A. M., Sekulin, R., Shellard, R. C., Sheridan, A., Silvestre, R., Simard, L., Simonetto, F., Sisakian, A. N., Skaali, T. B., Smadja, G., Smirnov, N., Smirnova, O., Smith, G. R., Solovianov, O., Sopczak, A., Sosnowski, R., Spassov, T., Spiriti, E., Sponholz, P., Squarcia, S., Stampfer, D., Stanescu, C., Stanic, S., Stapnes, S., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Tegenfeldt, F., Terranova, F., Thomas, J., Tilquin, A., Timmermans, J., Tkatchev, L. G., Todorov, T., Todorova, S., Toet, D. Z., Tomaradze, A., Tome, B., Tonazzo, A., Tortora, L., Transtromer, G., Treille, D., Tristram, G., Trombini, A., Troncon, C., Tsirou, A., Turluer, M-L, Tyapkin, I. A., Tzamarias, S., Ueberschaer, B., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Apeldoorn, G. W., Dam, P., Eldik, J., Lysebetten, A., Vulpen, I., Vassilopoulos, N., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verlato, M., Vertogradov, L. S., Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopyanov, A. S., Voulgaris, G., Vrba, V., Wahlen, H., Walck, C., Weiser, C., Wetherell, A. M., Wicke, D., Wickens, J. H., Wilkinson, G. R., Winter, M., Witek, M., Wlodek, T., Wolf, G., Yi, J., Yushchenko, Y., Zaitsev, A., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N. I., Zucchelli, G. C., Zumerle, G., Delphi (IHEF, IoP, FNWI), BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Poropat, Paolo, Vitale, Lorenzo, and UCL - SST/IRMP - Institut de recherche en mathématique et physique
Subjects: Physics, Particle physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Hadron, High Energy Physics::Phenomenology, 01 natural sciences, LARGE ELECTRON POSITRON COLLIDER, Nuclear physics, Matrix (mathematics), 0103 physical sciences, PARTICLE PHYSICS, DELPHI, Computer Science::Networking and Internet Architecture, High Energy Physics::Experiment, 010306 general physics, Nuclear Experiment, Particle Physics - Experiment, Boson
Abstract: Decays of $W^{\pm}$ bosons, produced at LEP2, have been used to measure the $|V_{cs}|$ element of the Cabibbo-Kobayashi-Maskawa matrix. Values for $|V_{cs}|$ were extracted both from the measured hadronic branching ratio of $W^{\pm}$ decays and by tagging the flavour of hadronic jets produced in $W^{\pm}$ decays. Applying the two methods to the data collected during 1996 at energies of 161 and 172 GeV, DELPHI obtains $|V_{cs}| = 0.91{+0.15 \atop -0.14}({\rm stat})\pm 0.05({\rm syst})$.
Published: 2016

2. A STUDY OF THE DECAYS OF TAU LEPTONS PRODUCED ON THE Z-RESONANCE AT LEP

Author: Abreu, P, Adam, W, Adami, F, Adye, T, Agasi, E, Alekseev, G D, Allen, P, Almehed, S, Alvsvaag, S J, Amaldi, Ugo, Anassontzis, E G, Andreazza, A, Antilogus, P, Apel, W D, Apsimon, R J, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbiellini, Guido, Bardin, Dimitri Yuri, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Becks, K H, Beeston, C J, Begalli, M, Beillière, P, Belokopytov, Yu A, Beltran, P, Benedic, D, Berggren, M, Bertrand, D, Bianchi, F, Bilenky, S M, Billoir, P, Bjarne, J, Bloch, D, Blyth, S, Bocci, V, Bogolubov, P N, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borgeaud, P, Borisov, G, Börner, H, Bosio, C, Bostjancic, B, Botner, O, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Braibant, S, Branchini, P, Brand, K D, Brenner, R A, Briand, H, Bricman, C, Brown, R C A, Brümmer, N, Brunet, J M, Bugge, L, Buran, T, Burmeister, H, Buytaert, J, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castelli, Edoardo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Chan, A, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G A, Chevalier, L, Chliapnikov, P V, Chorowicz, V, Chrin, J T, Cirio, R, Clara, M P, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Couchot, F, Crawley, H B, Crennell, D J, Crosetti, G, Crozon, M, Cuevas-Maestro, J, Czellar, S, Dagoret, S, Dahl-Jensen, Erik, D'Almagne, B, Dam, M, Damgaard, G, Darbo, G, Daubie, Evelyne, Daum, A, Dauncey, P D, Davenport, Martyn, David, P, Da Silva, W, Defoix, C, Delikaris, D, Della Riccia, B A, Delorme, S, Delpierre, P A, Demaria, N, De Angelis, A, De Beer, M, De Boeck, H, de Boer, Wim, De Clercq, C, De Fez Laso, M D M, De Groot, N, La Vaissière, C de, De Lotto, B, De Min, A, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Dris, M, Dufour, Y, Dulinski, W, Eek, L O, Eerola, Paule Anna Mari, Ehret, R, Ekelöf, T J C, Ekspong, Gösta, Elliot-Peisert, A, Engel, J P, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Fernández-Alonso, M, Ferrer, A, Filippas-Tassos, A, Firestone, A, Föth, H, Fokitis, E, Folegati, P, Fontanelli, F, Forbes, K A J, Forsbach, H, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Furnival, K, Fürstenau, H, Fuster, J A, Galeazzi, G, Gamba, D, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gerber, J P, Giacomelli, P, Gokieli, R, Golovatyuk, V M, Gómez-Cadenas, J J, Goobar, A, Gopal, Gian P, Górski, M, Gracco, Valerio, Grant, A, Grard, F, Graziani, E, Grosdidier, G, Gross, E, Grossetête, B, Grosse-Wiesmann, P, Gumenyuk, S A, Guy, J, Haedinger, U, Hahn, F, Hahn, M, Haider, S, Hajduk, Z, Hakansson, A, Hallgren, A, Hamacher, K, Hamel de Monchenault, G, Hao, W, Harris, F J, Heck, B W, Henkes, T, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Hietanen, I, Higgins, C O, Higón, E, Hilke, Hans Jürgen, Hodgson, S D, Hofmokl, T, Holmes, R, Holmgren, S O, Holthuizen, D J, Honoré, P F, Hooper, J E, Houlden, M A, Hrubec, Josef, Hulth, P O, Hultqvist, K, Ioannou, P, Isenhower, D, Iversen, P S, Jackson, J N, Jalocha, P, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Johnson, D, Jonker, M, Jönsson, L B, Juillot, P, Kalkanis, G, Kalmus, George Ernest, Kapusta, F, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Kesteman, J, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klempt, W, Klovning, A, Kluit, P M, Köhne, J H, Köne, B, Kokkinias, P, Kopf, M, Korcyl, K, Korytov, A V, Kostukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Królikowski, J, Kronkvist, I J, Krstic, J, Krüner-Marquis, U, Krupinski, W, Kulka, K, Kurvinen, K L, Lacasta, C, Lambropoulos, C, Lamsa, J, Lanceri, L, Lapin, V, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Letessier-Selvon, A A, Lévy, J M, Lieb, E H, Liko, D, Lillethun, E, Lindgren, J, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Lokajícek, M, Loken, J G, López-Aguera, M A, López-Fernandez, A, Los, M E, Loukas, D, Lozano-Bahilo, J, Lutz, P, Lyons, L, Maehlum, G, Maillard, J, Maltezos, A, Mandl, F, Marco, J, Margoni, M, Marin, J C, Markou, A, Maron, T, Martí, S, Mathis, L G, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Meola, G, Meroni, C, Meyer, W T, Michelotto, M, Mikulec, I, Mitaroff, Winfried A, Mitselmakher, G, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Negri, P, Nielsen, B S, Nijjhar, B, Nikolaenko, V, Niss, P, Obraztsov, V F, Olshevskii, A G, Orava, Risto, Ostankov, A P, Österberg, K, Ouraou, A, Paganoni, M, Pain, R, Palka, H, Papadopoulou, T D, Pape, L, Passeri, A, Pegoraro, M, Pennanen, J, Perevozchikov, V, Pernicka, Manfred, Perrotta, A, Petrolini, A, Pierre, F, Pimenta, M, Pingot, O, Pol, M E, Polok, G, Poropat, P, Privitera, P, Pullia, Antonio, Radojicic, D, Ragazzi, S, Ratoff, P N, Read, A L, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, M, Rídky, J, Rinaudo, G, Roditi, I, Romero, A, Roncagliolo, I, Ronchese, P, Rönnqvist, C, Rosenberg, E I, Rossi, S, Rossi, U, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schael, S, Schneider, H, Schyns, M A E, Sciolla, G, Scuri, F, Segar, A M, Sekulin, R L, Sessa, M I, Sette, G, Seufert, R, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Skaali, T B, Skjevling, G, Smadja, G, Smith, G R, Sosnowski, R, Spassoff, Tz, Spiriti, E, Squarcia, S, Stäck, H, Stanescu, C, Stapnes, Steinar, Stavropoulos, G D, Stichelbaut, F, Stocchi, A, Strauss, J, Straver, J, Strub, R, Szczekowski, M, Szeptycka, M, Szymanski, P, Tabarelli de Fatis, T, Tavernier, Stefaan, Chikilev, O G, Theodosiou, G E, Tilquin, A, Timmermans, J, Timofeev, V G, Tkatchev, L G, Todorov, T, Toet, D Z, Toker, O, Torassa, E, Tortora, L, Trainor, M T, Treille, D, Trevisan, U, Trischuk, W, Tristram, G, Troncon, C, Tsirou, A L, Tsyganov, E N, Turala, Michal, Turchetta, R, Turluer, M L, Tuuva, T, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Valls Ferrer, J A, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Varela, J, Vaz, P, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Vertogradov, L S, Vilanova, D, Vitale, L, Vlasov, E V, Vlassopoulos, S, Vodopyanov, A S, Vollmer, M, Volponi, S, Voulgaris, G, Voutilainen, M, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Wayne, M, Wehr, A, Weierstall, M, Weilhammer, Peter, Werner, J, Wetherell, Alan M, Wickens, J H, Wikne, J, Wilkinson, G R, Williams, W S C, Winter, M, Wormald, D, Wormser, G, Woschnagg, K, Yamdagni, N, Yepes, P, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zhang, G, Zimin, N I, Zito, M, Zitoun, R, Zukanovich-Funchal, R, Zumerle, G, Zúñiga, J, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), UCL - SST/IRMP - Institut de recherche en mathématique et physique, Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Particle physics, E+E ANNIHILATION, POLARIZATION, Physics and Astronomy (miscellaneous), Electron–positron annihilation, MONTE-CARLO SIMULATION, RADIATIVE-CORRECTIONS, PHOTON CORRECTIONS, BHABHA SCATTERING, JET FRAGMENTATION, PERTURBATIVE QCD, HIGH-ENERGIES, PHYSICS, Elementary particle, 01 natural sciences, 7. Clean energy, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Quantum field theory, Born approximation, 010306 general physics, Engineering (miscellaneous), Physics, Coupling constant, 010308 nuclear & particles physics, Electroweak interaction, Weinberg angle, Physique des particules élémentaires, Particle Physics - Experiment, Lepton
Abstract: From the analysis of a data sample corresponding to an integrated luminosity of 4.63 pb-1 taken during the 1990 run of LEP at centre of mass energies between 88.2 GeV an 94.2 GeV, the tau decays {Mathematical expression} and their charge conjugates have been studied. The following branching ratios have been measured; {Mathematical expression}, {Mathematical expression}, Br(τ- → π- (K-)vτ)=11.9±0.7±0.7%, BR (τ- → ρ- vτ)= 22.4±0.8±1.3%, in good agreement with world averages. The measured electronic and muonic branching ratios lead to a measurement of the strong coupling constant, αs (mτ) = 0.26-0.12 +0.09. Extrapolating the αs value from mτ to mZ yields αs (mZ) = 0.109-0.028 +0.012. The average polarization Pτ of taus produced in Z → τs τs decays has also been measured using the above decay modes. The weighted mean of the polarizations obtained from the four decay modes is Pτ=-0.24±0.07. This value of Pτ gives, in the improved Born approximation, a ratio between the axial and vector coupling constants of the tau of υτ/aτ = 0.12 ± 0.04, and hence a value of the effective electroweak mixing parameter sin2 θW(mZ 2). © 1992 Springer-Verlag., 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 2016
Full Text: View/download PDF

3. A search for heavy stable charged and long-lived squarks and sleptons in $e^+ e^-$ collisions at energies from 130 to 183 GeV

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andersson, P, Andreazza, A, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barbiellini, Guido, Barbier, R, Bardin, Dimitri Yuri, Barker, G, Baroncelli, A, Battaglia, Marco, Baubillier, M, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Bérat, C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bianchi, F, Bigi, M, Bilenky, S M, Bizouard, M A, Bloch, D, Bonesini, M, Bonivento, W, Boonekamp, M, Booth, P S L, Borgland, A W, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Boyko, I, Bozovic, I, Bozzo, M, Branchini, P, Brenke, T, Brenner, R A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerruti, C, Chabaud, V, Chapkin, M M, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Shlyapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Collins, P, Colomer, M, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, D'Almagne, B, Damgaard, G, Davenport, Martyn, Da Silva, W, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, De Lotto, B, De Min, A, De Paula, L S, Dijkstra, H, Di Ciaccio, Lucia, Di Diodato, A, Djannati, A, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Duperrin, A, Durand, J D, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Ellert, M, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fanourakis, G K, Fassouliotis, D, Fayot, J, Feindt, Michael, Fenyuk, A, Ferrari, P, Ferrer, A, Fichet, S, Firestone, A, Fischer, P A, Flagmeyer, U, Föth, H, Fokitis, E, Fontanelli, F, Franek, B J, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gonçalves, P, González-Caballero, I, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Grahl, J, Graziani, E, Green, C, Grefrath, A, Gris, P, Grzelak, K, Günther, M, Guy, J, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Harris, F J, Hedberg, V, Heising, S, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Heuser, J M, Higón, E, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, P E, Joram, C, Juillot, P, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, E C, Keränen, R, Khomenko, B A, Khovanskii, N N, Kiiskinen, A P, King, B J, Kjaer, N J, Klapp, O, Klein, H, Kluit, P M, Knoblauch, D, Kokkinias, P, Koratzinos, M, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kreuter, C, Kriznic, E, Krstic, J, Krumshtein, Z, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Lapin, V, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Leinonen, L, Leisos, A, Leitner, R, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liko, D, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, Lopes, J H, López, J M, López-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Mahon, J R, Maio, A, Malek, A, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, F, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, McPherson, G, Meroni, C, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Moreau, X, Morettini, P, Morton, G A, Münich, K, Mulders, M, Mulet-Marquis, C, Muresan, R, Murray, W J, Muryn, B, Myatt, Gerald, Myklebust, T, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neufeld, N, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Nikolenko, M, Nomokonov, V P, Normand, Ainsley, Nygren, A, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Orazi, G, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Pegoraro, M, Peralta, L, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rakoczy, D, Rames, J, Ratoff, P N, Read, A L, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Reinhardt, R, Renton, P B, Resvanis, L K, Richard, F, Rídky, J, Rinaudo, G, Røhne, O M, Romero, A, Ronchese, P, Rosenberg, E I, Rosinsky, P, Roudeau, Patrick, Rovelli, T, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Schneider, H, Schwemling, P, Schwickerath, U, Schyns, M A E, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Sekulin, R L, Shellard, R C, Sheridan, A, Silvestre, R, Simard, L C, Simonetto, F, Sissakian, A N, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sopczak, André, Sosnowski, R, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stampfer, D, Stanescu, C, Stanic, S, Stapnes, Steinar, Stevenson, K, Stocchi, A, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tegenfeldt, F, Terranova, F, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova-Nová, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Van Lysebetten, A, Van Vulpen, I B, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wilkinson, G R, Winter, M, Witek, M, Wlodek, T, Wolf, G, Yi, J, Yushchenko, O P, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zucchelli, G C, and Zumerle, G
Subjects: Particle Physics - Experiment
Published: 1998

4. A study of the hadronic resonance structure in the decay $\tau \to 3\pi\nu_{\tau}$

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andersson, P, Andreazza, A, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barbiellini, Guido, Barbier, R, Bardin, Dimitri Yuri, Barker, G, Baroncelli, A, Bärring, O, Bates, M J, Battaglia, Marco, Baubillier, M, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Bérat, C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bianchi, F, Bigi, M, Bilenky, S M, Bizouard, M A, Bloch, D, Bonesini, M, Bonivento, W, Boonekamp, M, Booth, P S L, Borgland, A W, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Boyko, I, Bozovic, I, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Brown, R, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerruti, C, Chabaud, V, Chapkin, M M, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Colomer, M, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, D'Almagne, B, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, De Lotto, B, De Min, A, De Paula, L S, Dijkstra, H, Di Ciaccio, Lucia, Di Diodato, A, Djannati, A, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Duperrin, A, Durand, J D, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Ellert, M, Elsing, M, Engel, J P, Erzen, B, Falk, E, Fanourakis, G K, Fassouliotis, D, Fayot, J, Feindt, Michael, Ferrari, P, Ferrer, A, Fichet, S, Firestone, A, Fischer, P A, Flagmeyer, U, Föth, H, Fokitis, E, Fontanelli, F, Franek, B J, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gerdyukov, L N, Ghodbane, N, Glege, F, Gokieli, R, Golob, B, Gonçalves, P, González-Caballero, I, Gopal, Gian P, Gorn, L, Górski, M, Gracco, Valerio, Grahl, J, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Günther, M, Guy, J, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Harris, F J, Hedberg, V, Heising, S, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Heuser, J M, Higón, E, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, C, Juillot, P, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klapp, O, Klein, H, Kluit, P M, Knoblauch, D, Kokkinias, P, Koratzinos, M, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leisos, A, Leitner, R, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liko, D, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, Lopes, J H, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Mahon, J R, Maio, A, Malek, A, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Masik, J, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, F, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, McPherson, G, Medbo, J, Meroni, C, Meyer, W T, Myagkov, A, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Moreau, X, Morettini, P, Müller, H, Münich, K, Mulders, M, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Myklebust, T, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neufeld, N, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Nikolenko, M, Niss, P, Nomerotski, A, Normand, Ainsley, Nygren, A, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Orazi, G, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rakoczy, D, Ratoff, P N, Read, A L, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Reinhardt, R, Renton, P B, Resvanis, L K, Richard, F, Rídky, J, Rinaudo, G, Røhne, O M, Romero, A, Ronchese, P, Rosenberg, E I, Rosinsky, P, Roudeau, Patrick, Rovelli, T, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Schneider, H, Schwemling, P, Schwickerath, U, Schyns, M A E, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Sekulin, R L, Shellard, R C, Sheridan, A, Silvestre, R, Simonetto, F, Sissakian, A N, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sokolov, A, Solovyanov, O, Sopczak, André, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stampfer, D, Stanescu, C, Stanic, S, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tegenfeldt, F, Terranova, F, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Van Lysebetten, A, Van Vulpen, I B, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wlodek, T, Wolf, G, Yi, J, Yushchenko, O P, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zucchelli, G C, and Zumerle, G
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: The hadronic structure of the decay of the $\tau$ lepton to three charged particles, $\tau\rightarrow 3\pi\nu_\tau$, is studied using data collected by the DELPHI detector at LEP between 1992 and 1995. The invariant mass of the $3\pi$ system, $m_{3\pi}$, is fitted using the models of Kühn and Santamaria, Isgur Morningstar and Reader, and Feindt. The $3\pi$ mass spectrum and the Dalitz projections are compared with each model. Below \mbox{$m_{3\pi}^2 = 2.3~ {\GeV}^2$}, all are in good qualitative agreement. Above \mbox{$m_{3\pi}^2 = 2.3~ {\GeV}^2$}, anomalous behaviour is observed, consistent with the existence of a hitherto unseen decay mode of the $\tau$ through a radial excitation of the $a_1$ meson.
Published: 1998

5. Search for charged Higgs bosons in $e^+ e^-$ collisions at $\sqrt{s}$ = 172 GeV

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andersson, P, Andreazza, A, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Bardin, Dimitri Yuri, Barker, G, Baroncelli, A, Bärring, O, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Benvenuti, Alberto C, Bérat, C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bizouard, M A, Bloch, D, Blume, M, Bonesini, M, Bonivento, W, Boonekamp, M, Booth, P S L, Borgland, A W, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozovic, I, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerruti, C, Chabaud, V, Chalanda, N, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chochula, P, Chorowicz, V, Chudoba, J, Cindro, V, Collins, P, Colomer, M, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, D'Almagne, B, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, Dijkstra, H, Di Ciaccio, Lucia, Di Diodato, A, Djannati, A, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Durand, J D, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Ellert, M, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fanourakis, G K, Fassouliotis, D, Fayot, J, Feindt, Michael, Ferrari, P, Ferrer, A, Fichet, S, Firestone, A, Fischer, P A, Flagmeyer, U, Föeth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gerdyukov, L N, Glege, F, Gokieli, R, Golob, B, Gonçalves, P, Gopal, Gian P, Gorn, L, Górski, M, Gracco, Valerio, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Günther, M, Guy, J, Guz, Yu, Hahn, F, Hahn, S, Haider, S, Hajduk, Z, Hallgren, A, Hamacher, K, Harris, F J, Hedberg, V, Heising, S, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Heuser, J M, Higón, E, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, E C, Keränen, R, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klapp, O, Klein, H, Kluit, P M, Knoblauch, D, Kokkinias, P, Koratzinos, M, Korcyl, K, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krstic, J, Krumshtein, Z, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leisos, A, Leitner, R, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liko, D, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Mahon, J R, Maio, A, Malek, A, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, McPherson, G, Medbo, J, Meroni, C, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Möenig, K, Monge, M R, Moreau, X, Morettini, P, Münich, K, Mulders, M, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Myklebust, T, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neufeld, N, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Nikolenko, M, Niss, P, Nomerotski, A, Normand, Ainsley, Nygren, A, Oberschulte-Beckmann, W, Olshevskii, A G, Onofre, A, Orava, Risto, Orazi, G, Ortuno, S, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Reinhardt, R, Renton, P B, Resvanis, L K, Richard, F, Rídky, J, Rinaudo, G, Røhne, O M, Romero, A, Ronchese, P, Rosenberg, E I, Rosinsky, P, Roudeau, Patrick, Rovelli, T, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Schneider, H, Schwickerath, U, Schyns, M A E, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Senko, V A, Shellard, R C, Sheridan, A, Siegrist, P, Silvestre, R, Simonetto, F, Sissakian, A N, Skaali, T B, Smadja, G, Smirnova, O G, Smith, G R, Solovyanov, O, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stampfer, D, Stanescu, C, Stanic, S, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tegenfeldt, F, Terranova, F, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Van Lysebetten, A, Van Vulpen, I B, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Verzi, V, Vilanova, D, Vincent, P, Vishnevski, N K, Vitale, L, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wlodek, T, Wolf, G, Yi, J, Zach, F, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zucchelli, G C, Zumerle, G, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: High Energy Physics::Phenomenology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: This paper presents results on charged Higgs boson production, based on LEP data collected at $\sqrt{s} = 172$ GeV, that complement the previous DELPHI results obtained at centre of mass energies up to 161 GeV. %The analysis is based on LEP data collected at $\sqrt{s} = 172$ GeV. The charged Higgs bosons are assumed to be pair produced and to decay either into a quark pair %, identified as cs, or into $\tau\nu_{\tau}$. The three different possible final states are included in the analysis. Data from ring imaging Cherenkov and microvertex detectors are used to identify the quarks as a cs pair. %No significant signal was found. The number of candidates found is compatible with the background expected from standard processes. Combining the results of the present analysis with those of the previous analysis at lower energies, a new lower mass limit for the charged Higgs boson is set at 54.5 GeV/$c^2$.
Published: 1998
Full Text: View/download PDF

6. Measurement of the $e^+ e^- \to \gamma\gamma (\gamma)$ cross section at the LEP energies

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andersson, P, Andreazza, A, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barbier, R, Bardin, Dimitri Yuri, Barker, G, Baroncelli, A, Bärring, O, Battaglia, Marco, Baubillier, M, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Bérat, C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bianchi, F, Bigi, M, Bilenky, S M, Bizouard, M A, Bloch, D, Bonesini, M, Bonivento, W, Boonekamp, M, Booth, P S L, Borgland, A W, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Boyko, I, Bozovic, I, Bozzo, M, Branchini, P, Brenke, T, Brenner, R A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerruti, C, Chabaud, V, Chapkin, M M, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Chudoba, J, Collins, P, Colomer, M, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, D'Almagne, B, Damgaard, G, Davenport, Martyn, Da Silva, W, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, De Lotto, B, De Min, A, De Paula, L S, Dijkstra, H, Di Ciaccio, Lucia, Di Diodato, A, Djannati, A, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Duperrin, A, Durand, J D, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Ellert, M, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fanourakis, G K, Fassouliotis, D, Fayot, J, Feindt, Michael, Fenyuk, A, Ferrari, P, Ferrer, A, Fichet, S, Firestone, A, Fischer, P A, Flagmeyer, U, Föth, H, Fokitis, E, Fontanelli, F, Franek, B J, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gonçalves, P, González-Caballero, I, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Grahl, J, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Günther, M, Guy, J, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Harris, F J, Hedberg, V, Heising, S, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Heuser, J M, Higón, E, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, C, Juillot, P, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, E C, Keränen, R, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klapp, O, Klein, H, Kluit, P M, Knoblauch, D, Kokkinias, P, Konoplyannikov, A K, Koratzinos, M, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krstic, J, Krumshtein, Z, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Lapin, V, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Leinonen, L, Leisos, A, Leitner, R, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liko, D, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, Lopes, J H, López, J M, López-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Mahon, J R, Maio, A, Malek, A, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, F, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, McPherson, G, Meroni, C, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Moreau, X, Morettini, P, Morton, G A, Münich, K, Mulders, M, Mulet-Marquis, C, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Myklebust, T, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neufeld, N, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Nikolenko, M, Normand, Ainsley, Nygren, A, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Orazi, G, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Pegoraro, M, Peralta, L, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rakoczy, D, Rames, J, Ratoff, P N, Read, A L, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Reinhardt, R, Renton, P B, Resvanis, L K, Richard, F, Rídky, J, Rinaudo, G, Røhne, O M, Romero, A, Ronchese, P, Rosenberg, E I, Rosinsky, P, Roudeau, Patrick, Rovelli, T, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Schneider, H, Schwemling, P, Schwickerath, U, Schyns, M A E, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Sekulin, R L, Shellard, R C, Sheridan, A, Silvestre, R, Simard, L C, Simonetto, F, Sissakian, A N, Skaali, T B, Smadja, G, Smirnova, O G, Smith, G R, Sopczak, André, Sosnowski, R, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stampfer, D, Stanescu, C, Stanic, S, Stapnes, Steinar, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tegenfeldt, F, Terranova, F, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Van Lysebetten, A, Van Vulpen, I B, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wilkinson, G R, Winter, M, Witek, M, Wlodek, T, Wolf, G, Yi, J, Yushchenko, O P, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zucchelli, G C, Zumerle, G, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)
Subjects: Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: The total and the differential cross-sections for the reaction $e^+e^-\rightarrow \gamma\gamma(\gamma)$ have been measured with the DELPHI detector at LEP % with at centre-of-mass energies from 1 30 %, 136, 161, 172 and to 183 GeV for an integrated luminosity of 78.19.~pb$^{-1}$. %CR An agreement with the QED predictions was found and consequently The results agree with the QED prediction s. The lower limits (obtained including previously published results at the $\Zzero$ energies) on the QED cutoff parameters are $\Lambda_{+} > 253$~GeV and $\Lambda_{-} > 225$~GeV and the lower bo und on the mass of an excited electron with an effective coupling constant $\lambda_{\gamma} = 1$ is 231~GeV/$c^2$. %Upper limits on the branching ratios for the decays ${\rm Z}^0\rightarrow %\gam ma\gamma$, ${\rm Z}^0\rightarrow \pi^0\gamma$, % ${\rm Z}^0\rightarrow \eta\gamma$ %and ${\rm Z}^0\rightarrow \gamma\gamma\gamma$ have been determined to be 2.5 % $\times$ $10^{-5}$, 2.5 $\times$ $ 10^{-5}$, % 4.0 $\times$ $10^{-5}$, %and 9.1 $\times$ $10^{-4}$ respectively. All the limits are at the 95$\%$ confidence level.
Published: 1998
Full Text: View/download PDF

7. $\pi^{\pm}, K^{\pm}, p$ and $\overline{p}$ production in $Z^{0} \rightarrow q\overline{q}, Z^{0} \rightarrow b\overline{b}, Z^{0} \rightarrow u\overline{u}, d\overline{d}, s\overline{s}$

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Anassontzis, E G, Andersson, P, Andreazza, A, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barbiellini, Guido, Barbier, R, Bardin, Dimitri Yuri, Barker, G, Baroncelli, A, Battaglia, Marco, Baubillier, M, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Bérat, C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bianchi, F, Bigi, M, Bilenky, S M, Bizouard, M A, Bloch, D, Bonesini, M, Bonivento, W, Boonekamp, M, Booth, P S L, Borgland, A W, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Boyko, I, Bozovic, I, Bozzo, M, Branchini, P, Brenke, T, Brenner, R A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerruti, C, Chabaud, V, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Chudoba, J, Collins, P, Colomer, M, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, D'Almagne, B, Damgaard, G, Davenport, Martyn, Da Silva, W, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, De Lotto, B, De Min, A, De Paula, L S, Dijkstra, H, Di Ciaccio, Lucia, Di Diodato, A, Djannati, A, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Duperrin, A, Durand, J D, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Ellert, M, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fanourakis, G K, Fassouliotis, D, Fayot, J, Feindt, Michael, Ferrari, P, Ferrer, A, Fichet, S, Firestone, A, Fischer, P A, Flagmeyer, U, Föth, H, Fokitis, E, Fontanelli, F, Franek, B J, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gerdyukov, L N, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gonçalves, P, González-Caballero, I, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Grahl, J, Graziani, E, Green, C, Grefrath, A, Gris, P, Grzelak, K, Günther, M, Guy, J, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Harris, F J, Hedberg, V, Heising, S, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Heuser, J M, Higón, E, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, P E, Joram, C, Juillot, P, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, E C, Keränen, R, Khomenko, B A, Khovanskii, N N, Kiiskinen, A P, King, B J, Kjaer, N J, Klapp, O, Klein, H, Kluit, P M, Knoblauch, D, Kokkinias, P, Koratzinos, M, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kreuter, C, Kriznic, E, Krumshtein, Z, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Lapin, V, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Leinonen, L, Leisos, A, Leitner, R, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liko, D, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, Lopes, J H, López, J M, López-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Mahon, J R, Maio, A, Malek, A, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, F, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, McPherson, G, Meroni, C, Myagkov, A, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Moreau, X, Morettini, P, Morton, G A, Münich, K, Mulders, M, Mulet-Marquis, C, Muresan, R, Murray, W J, Muryn, B, Myatt, Gerald, Myklebust, T, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neufeld, N, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Nikolenko, M, Nomokonov, V P, Normand, Ainsley, Nygren, A, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Orazi, G, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Pegoraro, M, Peralta, L, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rakoczy, D, Rames, J, Ratoff, P N, Read, A L, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Reinhardt, R, Renton, P B, Resvanis, L K, Richard, F, Rídky, J, Rinaudo, G, Røhne, O M, Romero, A, Ronchese, P, Rosenberg, E I, Rosinsky, P, Roudeau, Patrick, Rovelli, T, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Schneider, H, Schwemling, P, Schwickerath, U, Schyns, M A E, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Sekulin, R L, Senko, V A, Shellard, R C, Sheridan, A, Silvestre, R, Simard, L C, Simonetto, F, Sissakian, A N, Skaali, T B, Smadja, G, Smirnova, O G, Smith, G R, Solovyanov, O, Sopczak, André, Sosnowski, R, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stampfer, D, Stanescu, C, Stanic, S, Stapnes, Steinar, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tegenfeldt, F, Terranova, F, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Van Lysebetten, A, Van Vulpen, I B, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Verzi, V, Vilanova, D, Vishnevski, N K, Vitale, L, Vlasov, E, Vodopyanov, A S, Voulgaris, G, Vrba, V, Wahlen, H, Walck, C, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wilkinson, G R, Winter, M, Witek, M, Wlodek, T, Wolf, G, Yi, J, Yushchenko, O P, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zucchelli, G C, Zumerle, G, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)
Subjects: [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Particle Physics - Experiment
Abstract: The DELPHI experiment at LEP uses Ring Imaging Cherenkov detectors for particle identification. The good understanding of the RICH detectors allows the identification of charged pions, kaons and p rotons, covering the full momentum range from \mbox{$0.7\! \!p\! \! 45.6~\gevc$}. The $\pipm$,~$\kapm$, p and $\pbar$ normalised production rates, their differential cross sections, multiplicities a nd the maxima $\xipst$ of the \mbox{$\xip=\ln(1/\xp)$} distributions are measured for three event samples $\zqqbar$, ~$\zbbbar$ and $\zudsbar$, selected from \mbox{$\sim\!1\,400\, 000$}~$\zzero$ deca ys collected by \delphi in 1994. The results are compared to the predictions of the \jetset string fragmentation model and the \herwig cluster fragmentation model. The Modified Leading Logarithm Ap proximation with Local Parton-Hadron Duality is tested. The $\xipst$ dependence on the primary quark flavour is investigated and quantified for the different particle distributions. The $\pipm$, $ \kapm$, p and $\pbar$ multiplicities are measured with precisions from $\pm4$\%~to~$\pm6$\%. For the $\zqqbar$ and $\zbbbar$ event samples, these improve on previous measurements. The $\pipm$, $\k apm$, p and $\pbar$ multiplicities for $\zudsbar$ are presented for the first time.
Published: 1998
Full Text: View/download PDF

8. Charged Particle Multiplicity in $e^+ e^- \rightarrow q \overline{q}$ events at 161 and 172 GeV and from the Decay of the W Boson

Author: Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andersson, P, Andreazza, A, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barbi, M S, Bardin, Dimitri Yuri, Barker, G, Baroncelli, A, Bärring, O, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Bérat, C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bizouard, M A, Bloch, D, Blume, M, Bonesini, M, Bonivento, W, Boonekamp, M, Booth, P S L, Borgland, A W, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Chudoba, J, Cindro, V, Collins, P, Colomer, M, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahm, J, D'Almagne, B, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, Dijkstra, H, Di Ciaccio, Lucia, Di Diodato, A, Djannati, A, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Durand, J D, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fanourakis, G K, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Ferrari, P, Ferrer, A, Fichet, S, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gerdyukov, L N, Gokieli, R, Golob, B, Gonçalves, P, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Heuser, J M, Higón, E, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klapp, O, Klein, H, Kluit, P M, Knoblauch, D, Kokkinias, P, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krstic, J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leisos, A, Leitner, R, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liko, D, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Mahon, J R, Maio, A, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Masik, J, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, McPherson, G, Medbo, J, Meroni, C, Meyer, S, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Münich, K, Mulders, M, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Myklebust, T, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Nikolenko, M, Niss, P, Nomerotski, A, Normand, Ainsley, Nygren, A, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Orazi, G, Ortuno, S, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Paiano, S, Pain, R, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Reinhardt, R, Renton, P B, Resvanis, L K, Richard, F, Rídky, J, Rinaudo, G, Røhne, O M, Romero, A, Ronchese, P, Roos, L, Rosenberg, E I, Rosinsky, P, Roudeau, Patrick, Rovelli, T, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sannino, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Serbelloni, L, Shellard, R C, Sheridan, A, Siegrist, P, Silvestre, R, Simonetto, F, Sissakian, A N, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Solovyanov, O, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stampfer, D, Stanescu, C, Stanic, S, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Tegenfeldt, F, Terranova, F, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, van Apeldoorn, G W, van Dam, P, Van Eldik, J, Van Lysebetten, A, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wlodek, T, Yi, J, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zucchelli, G C, Zumerle, G, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU)
Subjects: [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment
Abstract: The data collected by DELPHI in 1996 have been used to measure the average charged particle multiplicities and dispersions in $q\bar{q}$ events at centre-of-mass energies of $\sqrt{s}=161$~GeV and $\sqrt{s}=172$~GeV, and the average charge multiplicity in WW events at $\sqrt{s}=172$~GeV. The multiplicities in $q\bar{q}$ events are consistent with the evolution predicted by QCD. The dispersions in the multiplicity distributions are consistent with Koba-Nielsen-Olesen (KNO) scaling. The average multiplicity of charged particles in hadronic W decays has been measured for the first time; its value, $19.23 \pm 0.74 (stat+syst)$, is consistent with that expected for an $e^+e^-$ interaction at a centre-of-mass energy equal to the W mass. The charged particle multiplicity in W decays shows no evidence of effects of colour reconnection between partons from different W's at the present level of statistics.
Published: 1998
Full Text: View/download PDF

9. Measurement of the W-pair cross-section and of the W mass in e(+)e(-) interactions at 172 GeV

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G. D., Alemany, R., Allport, P. P., Almehed, S., Amaldi, U., Amato, S., Andersson, P., Andreazza, A., Antilogus, P., Apel, W. -D, Arnoud, Y., Åsman, B., Augustin, J-E, Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barbiellini, G., Barbier, R., Bardin, D. Y., Barker, G., Baroncelli, A., Barring, O., Bates, M. J., Battaglia, M., Baubillier, M., Becks, K. -H, Begalli, M., Beilliere, P., Belokopytov, Y., Belous, K., Benvenuti, A. C., Berat, C., Berggren, M., Bertini, D., Bertrand, D., Besancon, M., Bianchi, F., Bigi, M., Bilenky, M. S., Billoir, P., Bizouard, M. -A, Bloch, D., Blume, M., Bonesini, M., Bonivento, W., Boonekamp, M., Booth, P. S. L., Borgland, A. W., Borisov, G., Bosio, C., Botner, O., Boudinov, E., Bouquet, B., Bourdarios, C., Bowcock, T. J. V., Bozovic, I., Bozzo, M., Branchini, P., Brand, K. D., Brenke, T., Brenner, R. A., Brown, R., Bruckman, P., Brunet, J. -M, Bugge, L., Buran, T., Burgsmueller, T., Buschmann, P., Cabrera, S., Caccia, M., Calvi, M., Camacho Rozas, A. J., Camporesi, T., Canale, V., Canepa, M., Carena, F., Carroll, L., Caso, C., Castillo Gimenez, M. V., Cattai, A., Cavallo, F. R., Cerruti, Ch, Chabaud, V., Chalanda, N., Charpentier, Ph, Chaussard, L., Checchia, P., Chelkov, G. A., Chen, M., Chierici, R., Chliapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Cindro, V., Collins, P., Colomer, M., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Cowell, J. -H, Crawley, H. B., Crennell, D., Crosetti, G., Cuevas Maestro, J., Czellar, S., Dalmagne, B., Damgaard, G., Dauncey, P. D., Davenport, M., Da Silva, W., Deghorain, A., Della Ricca, G., Delpierre, P., Demaria, N., Angelis, A., Boer, W., Brabandere, S., Clercq, C., La Vaissiere, C., Lotto, B., Min, A., Paula, L., Dijkstra, H., Di Ciaccio, L., Di Diodato, A., Djannati, A., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Drees, K. -A, Dris, M., Duperrin, A., Durand, J. -D, Edsall, D., Ehret, R., Eigen, G., Ekelof, T., Ekspong, G., Ellert, M., Elsing, M., Engel, J. -P, Erzen, B., Espirito Santo, M., Falk, E., Fanourakis, G., Fassouliotis, D., Fayot, J., Feindt, M., Ferrari, P., Ferrer, A., Fichet, S., Firestone, A., Fischer, P. -A, Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Formenti, F., Franek, B., Frodesen, A. G., Fruhwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gandelman, M., Garcia, C., Garcia, J., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, Ph, Gazis, E. N., Gele, D., Gerber, J. -P, Ghodbane, N., Glege, F., Gokieli, R., Golob, B., Goncalves, P., Gonzalez Caballero, I., Gopal, G., Gorn, L., Gorski, M., Gouz, Yu, Gracco, V., Grahl, J., Graziani, E., Green, C., Grefrath, A., Gris, P., Grosdidier, G., Grzelak, K., Gunther, M., Guy, J., Hahn, F., Hahn, S., Haider, S., Hajduk, Z., Hallgren, A., Hamacher, K., Harris, F. J., Hedberg, V., Heising, S., Henriques, R., Hernandez, J. J., Herquet, P., Herr, H., Hessing, T. L., Heuser, J. -M, Higon, E., Holmgren, S. -O, Holt, P. J., Holthuizen, D., Hoorelbeke, S., Houlden, M., Hrubec, J., Huet, K., Hultqvist, K., Jackson, J. N., Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, Ch, Jarlskog, G., Jarry, P., Jean-Marie, B., Johansson, E. K., Jonsson, L., Jonsson, P., Joram, C., Juillot, P., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, E. C., Keranen, R., Khomenko, B. A., Khovanski, N. N., King, B., Kjaer, N. J., Klapp, O., Klein, H., Kluit, P., Knoblauch, D., Kokkinias, P., Koratzinos, M., Korcyl, K., Kourkoumelis, C., Kouznetsov, O., Krammer, M., Kreuter, C., Kronkvist, I., Krumstein, Z., Kubinec, P., Kucewicz, W., Kurvinen, K., Lacasta, C., Lamsa, J. W., Lanceri, L., Lane, D. W., Langefeld, P., Lapin, V., Laugier, J. -P, Lauhakangas, R., Leder, G., Ledroit, F., Lefebure, V., Legan, C. K., Leisos, A., Leitner, R., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liko, D., Lipniacka, A., Lippi, I., Loerstad, B., Loken, J. G., Lopes, J. H., Lopez, J. M., Loukas, D., Lutz, P., Lyons, L., Macnaughton, J., Mahon, J. R., Maio, A., Malek, A., Malmgren, T. G. M., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J. -C, Mariotti, C., Markou, A., Martinez-Rivero, C., Martinez-Vidal, F., Marti I Garcia, S., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., Mc Cubbin, M., Mc Kay, R., Mc Nulty, R., Mc Pherson, G., Medbo, J., Meroni, C., Meyer, W. T., Miagkov, A., Michelotto, M., Migliore, E., Mirabito, L., Mitaroff, W. A., Mjoernmark, U., Moa, T., Moeller, R., Moenig, K., Monge, M. R., Moreau, X., Morettini, P., Muenich, K., Mulders, M., Mundim, L. M., Murray, W. J., Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Navarria, F. L., Navas, S., Nawrocki, K., Negri, P., Nemecek, S., Neufeld, N., Neumann, W., Neumeister, N., Nicolaidou, R., Nielsen, B. S., Nieuwenhuizen, M., Nikolaenko, V., Nikolenko, M., Niss, P., Nomerotski, A., Normand, A., Nygren, A., Oberschulte-Beckmann, W., Obraztsov, V., Olshevski, A. G., Onofre, A., Orava, R., Orazi, G., Ortuno, S., Osterberg, K., Ouraou, A., Paganini, P., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palka, H., Papadopoulou, T. D., Papageorgiou, K., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Pegoraro, M., Peralta, L., Pernegger, H., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H. T., Piana, G., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Podobrin, O., Pol, M. E., Polok, G., Poropat, P., Pozdniakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rames, J., Ratoff, P. N., Read, A. L., Rebecchi, P., Redaelli, N. G., Regler, M., Reid, D., Reinhardt, R., Renton, P. B., Resvanis, L. K., Richard, F., Ridky, J., Rinaudo, G., Rohne, O., Romero, A., Ronchese, P., Rosenberg, E. I., Rosinsky, P., Roudeau, P., Rovelli, T., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovsky, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Schneider, H., Schwickerath, U., Schyns, M. A. E., Scuri, F., Seager, P., Sedykh, Y., Segar, A. M., Sekulin, R., Shellard, R. C., Sheridan, A., Silvestre, R., Simonetto, F., Sisakian, A. N., Skaali, T. B., Smadja, G., Smirnov, N., Smirnova, O., Smith, G. R., Solovianov, O., Sopczak, A., Sosnowski, R., Souza-Santos, D., Spassov, T., Spiriti, E., Sponholz, P., Squarcia, S., Stampfer, D., Stanescu, C., Stanic, S., Stapnes, S., Stavitski, I., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Tegenfeldt, F., Terranova, F., Thomas, J., Tilquin, A., Timmermans, J., Tkatchev, L. G., Todorov, T., Todorova, S., Toet, D. Z., Tomaradze, A., Bernardo Tomé, Tonazzo, A., Tortora, L., Transtromer, G., Treille, D., Tristram, G., Trombini, A., Troncon, C., Tsirou, A., Turluer, M. -L, Tyapkin, I. A., Tyndel, M., Tzamarias, S., Ueberschaer, B., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Vander Velde, C., Apeldoorn, G. W., Dam, P., Doninck, W. K., Eldik, J., Lysebetten, A., Vulpen, I., Vassilopoulos, N., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verlato, M., Vertogradov, L. S., Verzi, V., Vilanova, D., Vincent, P., Vishnevsky, N., Vitale, L., Vlasov, E., Vodopyanov, A. S., Vrba, V., Wahlen, H., Walck, C., Weiser, C., Wetherell, A. M., Wicke, D., Wickens, J. H., Wilkinson, G. R., Williams, W. S. C., Winter, M., Witek, M., Wlodek, T., Wolf, G., Yi, J., Yushchenko, O., Zaitsev, A., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N. I., Zucchelli, G. C., Zumerle, G., Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Alekseev, G, Alemany, R, Allport, P, Almehed, S, Amaldi, U, Amato, S, Andersson, P, Andreazza, A, Antilogus, P, Apel, W, Arnoud, Y, Åsman, B, Augustin, J, Augustinus, A, Baillon, P, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, D, Barker, G, Baroncelli, A, Barring, O, Bates, M, Battaglia, M, Baubillier, M, Becks, K, Begalli, M, Beilliere, P, Belokopytov, Y, Belous, K, Benvenuti, A, Berat, C, Berggren, M, Bertini, D, Bertrand, D, Besancon, M, Bianchi, F, Bigi, M, Bilenky, M, Billoir, P, Bizouard, M, Bloch, D, Blume, M, Bonesini, M, Bonivento, W, Boonekamp, M, Booth, P, Borgland, A, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T, Bozovic, I, Bozzo, M, Branchini, P, Brand, K, Brenke, T, Brenner, R, Brown, R, Bruckman, P, Brunet, J, Bugge, L, Buran, T, Burgsmueller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camacho Rozas, A, Camporesi, T, Canale, V, Canepa, M, Carena, F, Carroll, L, Caso, C, Castillo Gimenez, M, Cattai, A, Cavallo, F, Cerruti, C, Chabaud, V, Chalanda, N, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G, Chen, M, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cindro, V, Collins, P, Colomer, M, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J, Crawley, H, Crennell, D, Crosetti, G, Cuevas Maestro, J, Czellar, S, Dalmagne, B, Damgaard, G, Dauncey, P, Davenport, M, da Silva, W, Deghorain, A, della Ricca, G, Delpierre, P, Demaria, N, de Angelis, A, de Boer, W, de Brabandere, S, de Clercq, C, de la Vaissiere, C, de Lotto, B, de Min, A, de Paula, L, Dijkstra, H, di Ciaccio, L, di Diodato, A, Djannati, A, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Drees, K, Dris, M, Duperrin, A, Durand, J, Edsall, D, Ehret, R, Eigen, G, Ekelof, T, Ekspong, G, Ellert, M, Elsing, M, Engel, J, Erzen, B, Espirito Santo, M, Falk, E, Fanourakis, G, Fassouliotis, D, Fayot, J, Feindt, M, Ferrari, P, Ferrer, A, Fichet, S, Firestone, A, Fischer, P, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B, Frodesen, A, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gandelman, M, Garcia, C, Garcia, J, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, E, Gele, D, Gerber, J, Ghodbane, N, Glege, F, Gokieli, R, Golob, B, Goncalves, P, Gonzalez Caballero, I, Gopal, G, Gorn, L, Gorski, M, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Gunther, M, Guy, J, Hahn, F, Hahn, S, Haider, S, Hajduk, Z, Hallgren, A, Hamacher, K, Harris, F, Hedberg, V, Heising, S, Henriques, R, Hernandez, J, Herquet, P, Herr, H, Hessing, T, Heuser, J, Higon, E, Holmgren, S, Holt, P, Holthuizen, D, Hoorelbeke, S, Houlden, M, Hrubec, J, Huet, K, Hultqvist, K, Jackson, J, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E, Jonsson, L, Jonsson, P, Joram, C, Juillot, P, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, E, Keranen, R, Khomenko, B, Khovanski, N, King, B, Kjaer, N, Klapp, O, Klein, H, Kluit, P, Knoblauch, D, Kokkinias, P, Koratzinos, M, Korcyl, K, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kreuter, C, Kronkvist, I, Krumstein, Z, Kubinec, P, Kucewicz, W, Kurvinen, K, Lacasta, C, Lamsa, J, Lanceri, L, Lane, D, Langefeld, P, Lapin, V, Laugier, J, Lauhakangas, R, Leder, G, Ledroit, F, Lefebure, V, Legan, C, Leisos, A, Leitner, R, Lemonne, J, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liko, D, Lipniacka, A, Lippi, I, Loerstad, B, Loken, J, Lopes, J, Lopez, J, Loukas, D, Lutz, P, Lyons, L, Macnaughton, J, Mahon, J, Maio, A, Malek, A, Malmgren, T, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, J, Mariotti, C, Markou, A, Martinez-Rivero, C, Martinez-Vidal, F, Marti i Garcia, S, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, Mc Cubbin, M, Mc Kay, R, Mc Nulty, R, Mc Pherson, G, Medbo, J, Meroni, C, Meyer, W, Miagkov, A, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, W, Mjoernmark, U, Moa, T, Moeller, R, Moenig, K, Monge, M, Moreau, X, Morettini, P, Muenich, K, Mulders, M, Mundim, L, Murray, W, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Navarria, F, Navas, S, Nawrocki, K, Negri, P, Nemecek, S, Neufeld, N, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B, Nieuwenhuizen, M, Nikolaenko, V, Nikolenko, M, Niss, P, Nomerotski, A, Normand, A, Nygren, A, Oberschulte-Beckmann, W, Obraztsov, V, Olshevski, A, Onofre, A, Orava, R, Orazi, G, Ortuno, S, Osterberg, K, Ouraou, A, Paganini, P, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palka, H, Papadopoulou, T, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H, Piana, G, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Podobrin, O, Pol, M, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P, Read, A, Rebecchi, P, Redaelli, N, Regler, M, Reid, D, Reinhardt, R, Renton, P, Resvanis, L, Richard, F, Ridky, J, Rinaudo, G, Rohne, O, Romero, A, Ronchese, P, Rosenberg, E, Rosinsky, P, Roudeau, P, Rovelli, T, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Y, Sadovsky, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Schneider, H, Schwickerath, U, Schyns, M, Scuri, F, Seager, P, Sedykh, Y, Segar, A, Sekulin, R, Shellard, R, Sheridan, A, Silvestre, R, Simonetto, F, Sisakian, A, Skaali, T, Smadja, G, Smirnov, N, Smirnova, O, Smith, G, Solovianov, O, Sopczak, A, Sosnowski, R, Souza-Santos, D, Spassov, T, Spiriti, E, Sponholz, P, Squarcia, S, Stampfer, D, Stanescu, C, Stanic, S, Stapnes, S, Stavitski, I, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Tegenfeldt, F, Terranova, F, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L, Todorov, T, Todorova, S, Toet, D, Tomaradze, A, Tome, B, Tonazzo, A, Tortora, L, Transtromer, G, Treille, D, Tristram, G, Trombini, A, Troncon, C, Tsirou, A, Turluer, M, Tyapkin, I, Tyndel, M, Tzamarias, S, Ueberschaer, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Vander Velde, C, van Apeldoorn, G, van Dam, P, van Doninck, W, van Eldik, J, van Lysebetten, A, van Vulpen, I, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verlato, M, Vertogradov, L, Verzi, V, Vilanova, D, Vincent, P, Vishnevsky, N, Vitale, L, Vlasov, E, Vodopyanov, A, Vrba, V, Wahlen, H, Walck, C, Weiser, C, Wetherell, A, Wicke, D, Wickens, J, Wilkinson, G, Williams, W, Winter, M, Witek, M, Wlodek, T, Wolf, G, Yi, J, Yushchenko, O, Zaitsev, A, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, N, Zucchelli, G, and Zumerle, G
Subjects: Physics and Astronomy (miscellaneous), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], COLOR, High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Engineering (miscellaneous), Nuclear Experiment, Particle Physics - Experiment
Abstract: From a data sample of $9.98 {\mathrm{~pb^{-1}}}$ integrated luminosity collected by DELPHI at a centre-of-mass energy of 172 GeV, 118 events were selected as W-pair candidates. From these, the branching fraction ${\mathrm Br}({\mathrm W} \rightarrow {\mathrm q}\bar{\mathrm q})$ was measured to be $0.660^{+0.036}_{-0.037} (\mathrm{stat.}) \pm 0.009 (\mathrm{syst.})$ and the cross-section for the doubly resonant process $\mathrm{e^+ e^- \rightarrow W^+ W^-}$ to be $11.58^{+1.44}_{-1.35} (\mathrm{stat.}) \pm 0.32 (\mathrm{syst.})$ pb. The mass of the W boson, obtained from direct reconstruction of the invariant mass of the fermion pairs in the decays $\mathrm{ WW \rightarrow \ell\nu q \bar{q}}$ and $\mathrm{ WW \rightarrow q\bar{q}q\bar{q}}$, was determined to be $m_{\mathrm W} = \: 80.22 \: \pm \: 0.41 (\mathrm{stat.}) \: \pm 0.04 (\mathrm{syst.}) \: \pm 0.05 (\mathrm{int.}) \: \pm 0.03 (\mathrm{LEP})\: \mathrm{GeV}/c^2$, where ``int.'' denotes the uncertainty from interconnection effects like colour reconnection and Bose-Einstein interference. Combined with the W mass obtained from the cross-sections measured by DELPHI at threshold, a value of $m_{\mathrm W} = \: 80.33 \: \pm \: 0.30 (\mathrm{stat.}) \: \pm 0.05 ({\mathrm syst.}) \: \pm \: 0.03 (\mathrm{int.}) \: \pm \: 0.03 (\mathrm{LEP}) \: \mathrm{GeV}/c^2$ was found.
Published: 1998
Full Text: View/download PDF

10. Search for $B^{0}_s -\overline{B^{0}_s}$ oscillations

Author: Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andersson, P, Andreazza, A, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barbi, M S, Bardin, Dimitri Yuri, Barker, G, Baroncelli, A, Bärring, O, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Bérat, C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bizouard, M A, Bloch, D, Blume, M, Bonesini, M, Bonivento, W, Boonekamp, M, Booth, P S L, Borgland, A W, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozovic, I, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Chapkin, M M, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Chudoba, J, Cindro, V, Collins, P, Colomer, M, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahm, J, D'Almagne, B, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, Dijkstra, H, Di Ciaccio, Lucia, Di Diodato, A, Djannati, A, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Durand, J D, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fanourakis, G K, Fassouliotis, D, Feindt, Michael, Ferrari, P, Ferrer, A, Fichet, S, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Geryukov, L, Gokieli, R, Golob, B, Gonçalves, P, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Heuser, J M, Higón, E, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klapp, O, Klein, H, Kluit, P M, Knoblauch, D, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leisos, A, Leitner, R, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liko, D, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Mahon, J R, Maio, A, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Masik, J, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, McPherson, G, Medbo, J, Meroni, C, Meyer, S, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Münich, K, Mulders, M, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Myklebust, T, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Nikolenko, M, Niss, P, Nomerotski, A, Normand, Ainsley, Nygren, A, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Orazi, G, Ortuno, S, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Paiano, S, Pain, R, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Reinhardt, R, Renton, P B, Resvanis, L K, Richard, F, Rídky, J, Rinaudo, G, Røhne, O M, Romero, A, Ronchese, P, Roos, L, Rosenberg, E I, Rosinsky, P, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sannino, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Serbelloni, L, Shellard, R C, Sheridan, A, Siccama, I, Siegrist, P, Silvestre, R, Simonetto, F, Sissakian, A N, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Solovyanov, O, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stampfer, D, Stanescu, C, Stanic, S, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Tegenfeldt, F, Terranova, F, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, van Apeldoorn, G W, van Dam, P, Van Eldik, J, Van Lysebetten, A, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wlodek, T, Yi, J, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zucchelli, G C, and Zumerle, G
Subjects: Particle Physics - Experiment, Computer Science::Information Theory
Abstract: was obtained by combining the results obtained in three channels.
Published: 1997

11. Search for stable heavy charged particles in $e^+ e^-$ collisions at $\sqrt{s}$ = 130-136, 161 and 172 GeV

Author: Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barbi, M S, Barbiellini, Guido, Bardin, Dimitri Yuri, Barker, G, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bizouard, M A, Bloch, D, Blume, M, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Cindro, V, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Di Diodato, A, Djama, F, Djannati, A, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Durand, J D, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Ferrer, A, Fichet, S, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gerdyukov, L N, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Heuser, J M, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klapp, O, Klein, H, Klovning, A, Kluit, P M, Kokkinias, P, Konoplyannikov, A K, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Libby, J, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Mahon, J R, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Münich, K, Mulders, M, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Novák, M, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Pain, R, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Podobnik, T, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Reinhardt, R, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Roudeau, Patrick, Rovelli, T, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sahr, O, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Serbelloni, L, Shellard, R C, Siegrist, P, Silvestre, R, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Solovyanov, O, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stampfer, D, Stanescu, C, Stanic, S, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chernyaev, E, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Van Lysebetten, A, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wlodek, T, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zucchelli, G C, Zumerle, G, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Particle Physics - Experiment
Abstract: A search for stable or long-lived heavy charged particles in $e^+e^-$ interactions at energies of 130-136, 161 and 172 GeV has been performed using the data taken by the DELPHI experiment at LEP. The search is based on particle identification provided by the Time Projection Chamber and the Ring Imaging Cherenkov detector. Upper limits at 95\% confidence level are derived on the cross-section for heavy long-lived pair-produced charge $\pm e$ and $\pm 2/3e$ particles in the range of 0.4-2.3 pb for masses from 45 to 84 GeV/$c^2$. Within supersymmetric extensions of the Standard Model, long-lived charginos with masses from 45 to 84 (80)~GeV/$c^2$ for high (low) sneutrino masses can be excluded at 95\% confidence level. %Mass limits for long-lived sleptons are obtained. %For selectrons no general mass limits can be given. Left-handed (right-handed) long-lived or stable smuons and staus with masses between 45 and 68 (65)~GeV/$c^2$ can be excluded at 95\% confidence level.
Published: 1997
Full Text: View/download PDF

12. Measurement of the transverse spin correlation in $Z \to \tau^+\tau^-$ decays

Author: Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andersson, P, Andreazza, A, Antilogus, P, Apel, W D, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barbi, M S, Bardin, Dimitri Yuri, Barker, G, Baroncelli, A, Bärring, O, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bizouard, M A, Bloch, D, Blume, M, Bonesini, M, Bonivento, W, Booth, P S L, Borgland, A W, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozovic, I, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Cindro, V, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, Dijkstra, H, Di Ciaccio, Lucia, Di Diodato, A, Djannati, A, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Durand, J D, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fanourakis, G K, Fassouliotis, D, Feindt, Michael, Ferrari, P, Ferrer, A, Fichet, S, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gokieli, R, Golob, B, Gonçalves, P, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Heuser, J M, Higón, E, Hilke, Hans Jürgen, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klapp, O, Klein, H, Kluit, P M, Knoblauch, D, Köne, B, Kokkinias, P, Konoplyannikov, A K, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leisos, A, Leitner, R, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Libby, J, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Mahon, J R, Maio, A, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Myagkov, A, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Münich, K, Mulders, M, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Nikolenko, M, Niss, P, Nomerotski, A, Normand, Ainsley, Novák, M, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Orazi, G, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Pain, R, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Podobnik, T, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Reid, D, Reinhardt, R, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sahr, O, Sajot, G, Salt, J, Sannino, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Serbelloni, L, Shellard, R C, Siegrist, P, Silvestre, R, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sokolov, A, Solovyanov, O, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stampfer, D, Stanescu, C, Stanic, S, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Tegenfeldt, F, Terranova, F, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Van Lysebetten, A, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wlodek, T, Yi, J, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zontar, D, Zucchelli, G C, Zumerle, G, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), DELPHI, Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Particle Physics - Experiment
Abstract: The measurement of the correlation between the transverse spin components of $\tau^+\tau^-$ pairs collected during 1992 to 1994 with the DELPHI detector at LEP1 is presented. A value \begin{center} $C_{TT}$~=~0.87~$\pm$~0.20~(stat.)~$^{+~0.10}_{-~0.12}$~(syst.) \end{center} was obtained for the correlation parameter, in agreement with the Standard Model expectation.
Published: 1997
Full Text: View/download PDF

13. Measurement of Correlations between Pions from Different W's in $e^+ e^- \rightarrow W^+ W^-$ Events

Author: Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andersson, P, Andreazza, A, Antilogus, P, Apel, W D, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barbi, M S, Barbiellini, Guido, Bardin, Dimitri Yuri, Barker, G, Baroncelli, A, Bärring, O, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bizouard, M A, Bloch, D, Blume, M, Bonesini, M, Bonivento, W, Booth, P S L, Borgland, A W, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozovic, I, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Chapkin, M M, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chochula, P, Chorowicz, V, Cindro, V, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, Dijkstra, H, Di Ciaccio, Lucia, Di Diodato, A, Djannati, A, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Durand, J D, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fanourakis, G K, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Ferrari, P, Ferrer, A, Fichet, S, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gerdyukov, L N, Gokieli, R, Golob, B, Gonçalves, P, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Heuser, J M, Higón, E, Hilke, Hans Jürgen, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klapp, O, Klein, H, Kluit, P M, Knoblauch, D, Kokkinias, P, Konoplyannikov, A K, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leisos, A, Leitner, R, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Libby, J, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Mahon, J R, Maio, A, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Münich, K, Mulders, M, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Nikolenko, M, Niss, P, Nomerotski, A, Normand, Ainsley, Novák, M, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Orazi, G, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Pain, R, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Podobnik, T, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Reinhardt, R, Renton, P B, Resvanis, L K, Richard, F, Rídky, J, Rinaudo, G, Romero, A, Roncagliolo, I, Ronchese, P, Ronjin, V M, Roos, L, Rosenberg, E I, Roudeau, Patrick, Rovelli, T, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sahr, O, Sajot, G, Salt, J, Sannino, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Serbelloni, L, Shellard, R C, Siegrist, P, Silvestre, R, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnova, O G, Smith, G R, Solovyanov, O, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stampfer, D, Stanescu, C, Stanic, S, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chernyaev, E, Chikilev, O G, Tegenfeldt, F, Terranova, F, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Van Lysebetten, A, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wlodek, T, Yi, J, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zontar, D, Zucchelli, G C, Zumerle, G, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: High Energy Physics::Lattice, Nuclear Theory, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment
Abstract: Correlations between pions from different Ws in $e^+e^- rightarrow$W$^+$W$^-$ events are studied using data collected by the DELPHI detector at LEP running at a centre-of-mass energy of 172 GeV in 1996. At the present level of statistics, no enhancement of the correlation function above that expected from a pair of uncorrelated Ws is observed at small values of the four-momentum difference of the pions.
Published: 1997
Full Text: View/download PDF

14. Measurement of $B^0_d$ - $\overline B^0_d$ oscillations

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andersson, P, Andreazza, A, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barbi, M S, Bardin, Dimitri Yuri, Barker, G, Baroncelli, A, Bärring, O, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Bérat, C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bizouard, M A, Bloch, D, Blume, M, Bonesini, M, Bonivento, W, Booth, P S L, Borgland, A W, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Cindro, V, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, Dijkstra, H, Di Ciaccio, Lucia, Di Diodato, A, Djannati, A, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Durand, J D, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fanourakis, G K, Fassouliotis, D, Feindt, Michael, Ferrari, P, Ferrer, A, Fichet, S, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gerdyukov, L N, Gokieli, R, Golob, B, Gonçalves, P, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Heuser, J M, Higón, E, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klapp, O, Klein, H, Kluit, P M, Knoblauch, D, Kokkinias, P, Konoplyannikov, A K, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leisos, A, Leitner, R, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Libby, J, Liko, D, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Mahon, J R, Maio, A, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, McPherson, G, Medbo, J, Meroni, C, Meyer, S, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Münich, K, Mulders, M, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Myklebust, T, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Nikolenko, M, Niss, P, Nomerotski, A, Normand, Ainsley, Nygren, A, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Orazi, G, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pain, R, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Podobnik, T, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Reinhardt, R, Renton, P B, Resvanis, L K, Richard, F, Rídky, J, Rinaudo, G, Røhne, O M, Romero, A, Ronchese, P, Roos, L, Rosenberg, E I, Rosinsky, P, Roudeau, Patrick, Rovelli, T, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sannino, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Serbelloni, L, Shellard, R C, Sheridan, A, Siccama, I, Siegrist, P, Silvestre, R, Simonetto, F, Sissakian, A N, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Solovyanov, O, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stampfer, D, Stanescu, C, Stanic, S, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chernyaev, E, Chikilev, O G, Tegenfeldt, F, Terranova, F, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Van Lysebetten, A, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wlodek, T, Yi, J, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zucchelli, G C, Zumerle, G, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU)
Subjects: [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Particle Physics - Experiment
Abstract: ${B}^0_d$ meson oscillations are measured in hadronic $\Zz$ decays using the charge of a lepton or the mean charge of an event hemisphere to sign the presence of a $b$ or a $\overline{b}$ quark when it is produced, and using the charge of a lepton emitted at large p$_t$ or of a D$^{\ast \pm}$ to sign the presence of a B or a $\bar{\mbox{B}}$ meson when it decays. With 3.2 million hadronic $\Zz$ decays registered by DELPHI between 1991 and 1994, the mass difference $\Delta m_d$ between the two physical $\mbox{B}^0_d$ states is measured in four channels: \begin{eqnarray} \Delta m_d &=& 0.523 \pm 0.072 \pm 0.043 ~ \mbox{ps}^{-1}~~(\Dstar - Q_{hem})\nonumber \\ \Delta m_d &=& 0.493 \pm 0.042 \pm 0.027 ~ \mbox{ps}^{-1}~~(\ell - Q_{hem})\nonumber \\ \Delta m_d &=& 0.499 \pm 0.053 \pm 0.015 ~ \mbox{ps}^{-1}~~((\pimora-\ell)-Q_{hem})\nonumber \\ \Delta m_d &=& 0.480 \pm 0.040 \pm 0.051 ~ \mbox{ps}^{-1}~~(\ell - \ell).\nonumber \end{eqnarray} Taking into account the statistical overlap between these measurements and the common systematic uncertainties, the combined result is: \Delta m_d = 0.496 \pm 0.034 ~ \mbox{ps}^{-1}.
Published: 1997
Full Text: View/download PDF

15. Measurement of Event Shape and Inclusive Distributions at $\sqrt{s} =$ 130 and 136 GeV

Author: Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbi, M S, Barbiellini, Guido, Bardin, Dimitri Yuri, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Benvenuti, Alberto C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bizouard, M A, Bloch, D, Blume, M, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Buys, A, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Chapkin, M M, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Chudoba, J, Cindro, V, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Di Diodato, A, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Durand, J D, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Ferrer, A, Fichet, S, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gerdyukov, L N, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klapp, O, Klein, H, Klovning, A, Kluit, P M, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Lapin, V, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Libby, J, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Mahon, J R, Maio, A, Malek, A, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Masik, J, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Münich, K, Mulders, M, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Pain, R, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, M, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sahr, O, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Serbelloni, L, Shellard, R C, Siegrist, P, Silvestre, R, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, van Apeldoorn, G W, van Dam, P, Van Eldik, J, Van Lysebetten, A, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wlodek, T, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zucchelli, G C, Zumerle, G, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Lanceri, Livio, Poropat, Paolo, Vitale, Lorenzo, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU)
Subjects: High energy, Particle physics, Z(0) RESONANCE, Physics and Astronomy (miscellaneous), Electron–positron annihilation, HADRONIC Z-DECAYS, E+E-ANNIHILATION, ALPHA-S, POWER CORRECTIONS, MONTE-CARLO, QCD MODELS, ENERGY, FRAGMENTATION, PREDICTIONS, Hadron, Thrust, 01 natural sciences, 7. Clean energy, Partícules (Física nuclear), Nuclear physics, Fragmentation (mass spectrometry), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Detectors de radiació, DELPHI, Physics, Quantum chromodynamics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, LARGE ELECTRON POSITRON COLLIDER, Charged particle, Large Electron–Positron Collider, PARTICLE PHYSICS, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: Inclusive charged particle and event shape distributions are measured using 321 hadronic events collected with the DELPHI experiment at LEP at effective centre of mass energies of 130 to 136 GeV. These distributions are presented and compared to data at lower energies, in particular to the precise Z data. Fragmentation models describe the observed changes of the distributions well. The energy dependence of the means of the event shape variables can also be described using second order QCD plus power terms. A method independent of fragmentation model corrections is used to determine $\alpha_s$ from the energy dependence of the mean thrust and heavy jet mass. It is measured to be: % %\alpha_s(M_{\rm Z}) = 0.116 \pm 0.002_{exp} \pm 0.007_{theo} % % %\noindent %from the data up to Z energies and \alpha_s(133\mbox{ GeV}) = 0.116 \pm 0.007_{exp} {^{+0.005}_{-0.004}}_{theo} %\noindent from the high energy data.
Published: 1997
Full Text: View/download PDF

16. Search for excited leptons in $e^+ e^-$ collisions at $\sqrt{s}$ =161 GeV

Author: Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbi, M S, Bardin, Dimitri Yuri, Barker, G J, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bizouard, M A, Bloch, D, Blume, M, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Chapkin, M M, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Cindro, V, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Di Diodato, A, Djama, F, Djannati, A, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Durand, J D, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Ferrer, A, Fichet, S, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gerdyukov, L N, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klapp, O, Klein, H, Klovning, A, Kluit, P M, Kokkinias, P, Konoplyannikov, A K, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Lapin, V, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Libby, J, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Mahon, J R, Maio, A, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Masik, J, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Münich, K, Mulders, M, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Pain, R, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Roudeau, Patrick, Rovelli, T, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sahr, O, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Serbelloni, L, Shellard, R C, Siegrist, P, Silvestre, R, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G, Sokolov, A, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stampfer, D, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Van Lysebetten, A, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wlodek, T, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zucchelli, G C, and Zumerle, G
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: A search with the DELPHI detector at LEP for excited leptons ($e^*$, $\mu^*$, $\tau^*$ and $\nu^*$) decaying through $\gamma$, W or Z transitions is reported. The data used correspond to an integrated luminosity of 10 pb$^{-1}$ at an $e^+e^-$ centre-of-mass energy of 161 GeV. The search for pair produced excited leptons established the limits $m_{e^*} > 79.6 $ GeV/$c^2$, $m_{\mu^*} > 79.6$ GeV/$c^2$, $m_{\tau^*} > 79.4$ GeV/$c^2$ and $m_{\nu^*} > 56.4$ GeV/$c^2$ at 95\% confidence level, assuming that the SU(2) and U(1) couplings of excited leptons are in the same ratio as for normal leptons and considering both left and right-handed components. Limits corresponding to other assumptions are also given. The search for single excited lepton production established upper limits on the ratio $\lambda/m_{\ell^*}$ of the coupling of the excited lepton to its mass.
Published: 1996

17. Search for neutralinos, scalar leptons and scalar quarks in $e^+ e^-$ interactions at $\sqrt{s}$=130 GeV and 136 GeV

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andersson, P, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbi, M S, Bardin, Dimitri Yuri, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Benvenuti, Alberto C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bloch, D, Blume, M, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Buys, A, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Chudoba, J, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Di Diodato, A, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Durand, J D, Edsall, D M, Ehret, R, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Ferrer, A, Fichet, S, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Hao, W, Harris, F J, Hedberg, V, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klapp, O, Klein, H, Klovning, A, Kluit, P M, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Lapin, V, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Libby, J, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Mahon, J R, Maio, A, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Masik, J, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Myagkov, A, Michelotto, M, Migliore, E, Mirabito, L, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Pain, R, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, M, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sahr, O, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Serbelloni, L, Shellard, R C, Siccama, I, Siegrist, P, Silvestre, R, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sokolov, A, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chernyaev, E, Chikilev, O G, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Eldik, J, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zucchelli, G C, and Zumerle, G
Subjects: Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: Using data accumulated by DELPHI during the November 1995 LEP run at 130~GeV -- 136~GeV, searches have been made for events with jets or leptons in conjunction with missing momentum. The results are interpreted in terms of limits on the production of neutralinos, scalar leptons, and scalar quarks.
Published: 1996

18. Measurement of inclusive $K^{0}$(892), $\phi$(1020) and $K^{0}_{2}$(1430) production in hadronic Z decays

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barate, R, Barbi, M S, Bardin, Dimitri Yuri, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Berggren, M, Bertini, D, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bloch, D, Blume, M, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Buys, A, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Chapkin, M M, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Durand, J D, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Ferrer, A, Fichet, S, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gerdyukov, L N, Gibbs, M, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Lapin, V, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Libby, J, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, Maehlum, G, Maio, A, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Novák, M, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Pain, R, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, M, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sahr, O, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Serbelloni, L, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, van Apeldoorn, G W, van Dam, P, Van Eldik, J, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zucchelli, G C, and Zumerle, G
Subjects: Particle Physics - Experiment
Published: 1996

19. Search for high mass $\gamma\gamma$ resonances in e+e- --> l$^{+}$l$^{-}\gamma\gamma$, $\nu\overline{\nu}\gamma\gamma$ and q$\overline{q}\gamma\gamma$ at LEP I

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbi, M S, Bardin, Dimitri Yuri, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Benvenuti, Alberto C, Berggren, M, Bertini, D, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bloch, D, Blume, M, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Buys, A, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Chudoba, J, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Durand, J D, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Ferrer, A, Fichet, S, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, Dietrich E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gibbs, M, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hallgren, A, Hamacher, K, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Libby, J, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Maio, A, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Masik, J, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Myagkov, A, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Novák, M, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Pain, R, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, M, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sahr, O, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Serbelloni, L, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Solovyanov, O, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Eldik, J, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zucchelli, G C, and Zumerle, G
Subjects: Astrophysics::High Energy Astrophysical Phenomena, Particle Physics - Experiment
Abstract: A search for high mass photon pairs from the processes ${\mathrm e}^+ {\mathrm e}^- \to \ell^+ \ell^- \gamma \gamma\ $, ${\mathrm e}^+ {\mathrm e}^- \to {\mathrm \nu} \overline {\mathrm \nu} \gamma \gamma\
Published: 1996

20. Search for the lightest chargino at $\sqrt{s}$ = 130 and 136 GeV in DELPHI

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbi, M S, Bardin, Dimitri Yuri, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Berggren, M, Bertini, D, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bloch, D, Blume, M, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Buys, A, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Chapkin, M M, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Durand, J D, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Ferrer, A, Fichet, S, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gibbs, M, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Lapin, V, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Libby, J, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Maio, A, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Novák, M, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Pain, R, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, M, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sahr, O, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Serbelloni, L, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chernyaev, E, Chikilev, O G, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Eldik, J, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zucchelli, G C, and Zumerle, G
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: A search for pair production of the lightest chargino at $\rs=$ 130.4 and 136.3~GeV has been carried out using the data sample corresponding to the 5.92~${\rm pb}^{-1}$ recorded by the DELPHI detector during the high energy run of LEP in the last period of 1995. The theoretical reference model has been the Mi\-ni\-mal Supersymmetric Standard Model with R-parity conservation. The three topologies expected for the decay of a pair of charginos, namely two acoplanar leptons plus missing energy (\ll), two jets and an isolated lepton plus missing energy (\jjl) and missing energy in a hadronic environment (\jj), were investigated. No evidence of a signal was found. Lower mass limits were derived for various scenarios, including the case of a low mass difference between the chargino and the neutralino and of a light sneutrino. The mass limits range between 56.3~GeV/${\rm c}^2$ and the kinematic limit.
Published: 1996

21. Production of $\Sigma^{0}$ and $\Omega^{-}$ in Z decays

Author: Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbi, M S, Bardin, Dimitri Yuri, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bloch, D, Blume, M, Blyth, S, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Bosworth, S, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brillault, L, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Buys, A, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Chapkin, M M, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Chudoba, J, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Dufour, Y, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Ershaidat, N, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Ferrer, A, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gerdyukov, L N, Gibbs, M, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hallgren, A, Hamacher, K, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamblot, S, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Maio, A, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Masik, J, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, M, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Pindo, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Solovyanov, O, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zuberi, R, Zucchelli, G C, Zumerle, G, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), LEP (IHEF, IoP, FNWI), Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Cossutti, F., DELLA RICCA, Giuseppe, Lanceri, Livio, Poropat, Paolo, Vitale, Lorenzo, Flores, Sylvie, and UCL - SST/IRMP - Institut de recherche en mathématique et physique
Subjects: Particle physics, Photon, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Physics and Astronomy (miscellaneous), Electron–positron annihilation, Nuclear Theory, Hadron, 01 natural sciences, Omega, Measure (mathematics), DELPHI, hadronic Z0 decay, constrained fit, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Nuclear Experiment, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Sigma, LARGE ELECTRON POSITRON COLLIDER, Baryon, E+E, PARTICLE PHYSICS, Production (computer science), High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: Reconstructed \lam\ baryon decays and photon conversions in DELPHI are used to measure the \sig\ production rate from hadronic Z^0 decays at LEP. The number of \sig\ decays per hadronic Z decay is found to be: \begin{center} < \sig + \sigb > = \wffe{0.070}{0.010}{0.010 }{}. \end{center} \bigskip The \Omega^- production rate is similarly measured to be: \begin{center} < \Omega^- + \overline{\Omega}^+ > = \wffe{0.0014}{0.0002}{0.0004}{} \end{center} by a combination of methods using constrained fits to the whole decay chain and particle identification.
Published: 1996

22. Determination of |V$_{cb}$| from the semileptonic decay B$^{0}$ --> D$*^{-}$l$^{+}\nu$

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbi, M S, Barbiellini, Guido, Bardin, Dimitri Yuri, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bloch, D, Blume, M, Blyth, S, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Bosworth, S, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brillault, L, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Buys, A, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Chapkin, M M, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Chudoba, J, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Dufour, Y, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Ershaidat, N, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Ferrer, A, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gibbs, M, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamblot, S, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, Maehlum, G, Maio, A, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Masik, J, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, M, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Pindo, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Solovyanov, O, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Toet, D Z, Tomaradze, A G, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zuberi, R, Zucchelli, G C, and Zumerle, G
Subjects: High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: Semileptonic decays B \rightarrow D^{*-} \ell^+ \nu X were selected from a sample of 3.1 million hadronic Z decays collected by the DELPHI detector at LEP. A topological search for semileptonic B decays to resonant %(D^{**}) and non-resonant D^{*-} \pi^{+} states was performed and the ratio of the branching fractions: \frac {Br ({\mathrm{B} \rightarrow {\mathrm D}^{*-}} \ell^+ \nu X)} {Br({\mathrm{B} \rightarrow {\mathrm D}^{*-}} \ell^+ \nu X) + Br( {\mathrm{B}^0 \rightarrow \mathrm{D}^{*-}} \ell^+ \nu)} = 0.19 \pm 0.10({\mathrm{stat}}) \pm 0.06({\mathrm{syst}}) was determined. Taking into account this contribution, %DB the differential production fraction of the decay the differential decay width of {\mathrm{B}^{0} \rightarrow \mathrm{D}^{*-}} \ell^+ \nu was measured as a function of the momentum transfer from the B to the D^{*-} in two separate analyses, using exclusive and inclusive methods of D^{*-} reconstruction. The distributions were fitted %DB with a linear function over the full momentum transfer range to extract the product of \mathrm{|V_{cb}|} times the normalization of the decay form factor F(q^2_{max}): F(q^2_{max})\mathrm{|V_{cb}|} = (35.0 \pm 1.9({\mathrm{stat}}) \pm 2.3({\mathrm{syst}}) )~\cdot~10^{-3}. The value of \mathrm|V_{cb}| was computed using theoretical calculations of F(q^2_{max}), giving: {\mathrm{|V_{cb}|}} = (38.5 \pm 2.1({\mathrm{stat}}) \pm 2.5({\mathrm{syst}}) \pm 1.7({\mathrm{theory}}))~\cdot~10^{-3}. The total branching fraction Br(\mathrm{B}^{0} \rightarrow D^{*-} \ell^+ \nu) was determined to be: Br ({\mathrm{B}^0 \rightarrow \mathrm{D}^{*-}} \ell^+ \nu) = (5.47 \pm 0.16({\mathrm{stat}}) \pm 0.67({\mathrm{syst}})) \%.
Published: 1996

23. Search for new phenomena using single photon events in the DELPHI detector at LEP

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbi, M S, Barbiellini, Guido, Bardin, Dimitri Yuri, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bloch, D, Blume, M, Blyth, S, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Bosworth, S, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brillault, L, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Buys, A, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Dufour, Y, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Ershaidat, N, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Ferrer, A, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gerdyukov, L N, Gibbs, M, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Hao, W, Harris, F J, Hedberg, V, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamblot, S, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Lokajícek, M, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Maio, A, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, M, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Pindo, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Solovyanov, O, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zuberi, R, Zucchelli, G C, and Zumerle, G
Subjects: High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: Data are presented on the reaction \epem~\into~\gamma + no other detected particle at center-of-mass energies, \sqs = 89.48 GeV, 91.26 GeV and 93.08 GeV. The cross section for this reaction is related directly to the number of light neutrino generations which couple to the \zz boson, and to several other phenomena such as excited neutrinos, the production of an invisible `X' particle, a possible magnetic moment of the tau neutrino, and neutral monojets. Based on the observed number of single photon events, the number of light neutrinos which couple to the \zz is measured to be N_\nu = 3.15 \pm 0.34. No evidence is found for anomalous production of energetic single photons, and upper limits at the 95\% confidence level are determined for excited neutrino production (BR < 4-9 \times 10^{-6}), production of an invisible `X' particle (\sigma < 0.1 pb), and the magnetic moment of the tau neutrino (< 5.2 \times 10^{-6} \mu_B). No event with the topology of a neutral monojet is found, and this corresponds to the limit \sigma < 0.044/\epsilon pb at the 95\% confidence level, where \epsilon is the unknown overall monojet detection efficiency.
Published: 1996

24. Measurement of inclusive pi(0) production in hadronic Z(0) decays

Author: Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, Allport, P P, Almehed, S, Alvsvaag, S J, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbiellini, Guido, Bardin, Dimitri Yuri, Barker, G J, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bloch, D, Blume, M, Blyth, S, Bocci, V, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Bosworth, S, Botner, O, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brillault, L, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Buys, A, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carrilho, P, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G A, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, De Boeck, H, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Dufour, Y, Dupont, F, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Ershaidat, N, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Ferrer, A, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gerdyukov, L N, Gibbs, M, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Köne, B, Kokkinias, P, Koratzinos, M, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Królikowski, J, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamblot, S, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Lapin, V, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Lokajícek, M, Loken, J G, López, J M, López-Fernandez, A, López-Aguera, M A, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Maio, A, Malychev, V, Mandl, F, Maocun, C, Marco, J, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Meroni, C, Meyer, S, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, M, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Pindo, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pukhaeva, N, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Toet, D Z, Tomaradze, A G, Tomé, B, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zacharatou-Jarlskog, C, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zuberi, R, Zucchelli, G C, Zumerle, G, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Lanceri, Livio, Poropat, Paolo, Vitale, Lorenzo, and UCL - SST/IRMP - Institut de recherche en mathématique et physique
Subjects: Particle physics, Physics and Astronomy (miscellaneous), LUND MONTE-CARLO, Star (game theory), Electron–positron annihilation, Hadron, 01 natural sciences, Spectral line, Partícules (Física nuclear), JET FRAGMENTATION, Nuclear physics, QCD JETS, electromagnetic calorimeter, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], SPECTRA, 010306 general physics, Parton shower, DELPHI, Z0 decay, inclusive pi0 production, Physics, DENSITY PROJECTION CHAMBER, E+E-PHYSICS, 010308 nuclear & particles physics, LARGE ELECTRON POSITRON COLLIDER, Large Electron–Positron Collider, PARTICLE PHYSICS, Production (computer science), Física nuclear, Energy (signal processing), Particle Physics - Experiment
Abstract: An analysis is presented of inclusive \pi^0 production in Z^0 decays measured with the DELPHI detector. At low energies, \pi^0 decays are reconstructed by \linebreak using pairs of converted photons and combinations of converted photons and photons reconstructed in the barrel electromagnetic calorimeter (HPC). At high energies (up to x_p = 2 \cdot p_{\pi}/\sqrt{s} = 0.75) the excellent granularity of the HPC is exploited to search for two-photon substructures in single showers. The inclusive differential cross section is measured as a function of energy for {q\overline q} and {b \bar b} events. The number of \pi^0's per hadronic Z^0 event is N(\pi^0)/ Z_{had}^0 = 9.2 \pm 0.2 \mbox{(stat)} \pm 1.0 \mbox{(syst)} and for {b \bar b}~events the number of \pi^0's is {\mathrm N(\pi^0)/ b \overline b} = 10.1 \pm 0.4 \mbox{(stat)} \pm 1.1 \mbox{(syst)} . The ratio of the number of \pi^0's in b \overline b events to hadronic Z^0 events is less affected by the systematic errors and is found to be 1.09 \pm 0.05 \pm 0.01. The measured \pi^0 cross sections are compared with the predictions of different parton shower models. For hadronic events, the peak position in the \mathrm \xi_p = \ln(1/x_p) distribution is \xi_p^{\star} = 3.90^{+0.24}_{-0.14}. The average number of \pi^0's from the decay of primary \mathrm B hadrons is found to be {\mathrm N} (B \rightarrow \pi^0 \, X)/\mbox{B hadron} = 2.78 \pm 0.15 \mbox{(stat)} \pm 0.60 \mbox{(syst)}.
Published: 1996
Full Text: View/download PDF

25. A measurement of the photon structure function F$_{2}^{\gamma}$ at an average Q$^{2}$ of 12 GeV$^{2}$/c$^{4}$ : results from DELPHI

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, Allport, P P, Almehed, S, Alvsvaag, S J, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Arnoud, Y, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Bardin, Dimitri Yuri, Barker, G J, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Batyunya, B, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bloch, D, Blume, M, Blyth, S, Bocci, V, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Bosworth, S, Botner, O, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brillault, L, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Buys, A, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carrilho, P, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G A, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Daum, A, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, De Boeck, H, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Dufour, Y, Dupont, F, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Ershaidat, N, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Ferrer, A, Filippas-Tassos, A, Firestone, A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fürstenau, H, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gibbs, M, Gillespie, D, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Grosdidier, G, Gunnarsson, P, Günther, M, Guy, J, Haedinger, U, Hahn, F, Hahn, M, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Hao, W, Harris, F J, Hedberg, V, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Ioannou, P, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kalmus, George Ernest, Kapusta, F, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Köhne, J H, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Królikowski, J, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamblot, S, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Lapin, V, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, G, Lepeltier, V, Lesiak, T, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Lokajícek, M, Loken, J G, López, J M, López-Fernandez, A, López-Aguera, M A, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Maio, A, Malychev, V, Mandl, F, Marco, J, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Meroni, C, Meyer, W T, Myagkov, A, Michelotto, M, Migliore, E, Mirabito, L, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Palka, H, Papadopoulou, T D, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schneider, H, Schyns, M A E, Sciolla, G, Scuri, F, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stepaniak, K, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Toet, D Z, Tomaradze, A G, Tomé, B, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weierstall, M, Weilhammer, Peter, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zacharatou-Jarlskog, C, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zuberi, R, Zucchelli, G C, Zumerle, G, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU)
Subjects: [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Particle Physics - Experiment
Abstract: The hadronic photon structure function F_{2}^{\gamma} has been measured in the Q^{2} range from 4 to 30~GeV^2/c^{4} and down to x values of order 0.001, using data taken with the DELPHI detector at LEP between 1991 and 1993. A comparison is made with several F_{2}^{\gamma} parameterizations with special emphasis on their low x behaviour. A result on the Q^{2} evolution of F_{2}^{\gamma} is presented.
Published: 1996
Full Text: View/download PDF

26. Search for anomalous production of single photons at $\sqrt{s}$ = 130 and 136 GeV

Author: Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbi, M S, Barbiellini, Guido, Bardin, Dimitri Yuri, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Berggren, M, Bertini, D, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bloch, D, Blume, M, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Buys, A, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Durand, J D, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Ferrer, A, Fichet, S, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gibbs, M, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamblot, S, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Lapin, V, Last, I, Laugier, J P, Lauhakangas, R, Leser, G, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Libby, J, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Maio, A, Malychev, V, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Myagkov, A, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Novák, M, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, M, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Pindo, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sahr, O, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Serbelloni, L, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zucchelli, G C, Zumerle, G, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment
Abstract: This letter reports the results of the measurement of single photon production in the reaction $e^+e^- \rightarrow \gamma +$ invisible particles at centre-of-mass energies $\sqrt{s}=$~130 and 136 GeV and an integrated luminosity of 5.83~pb$^{-1}$, collected with the DELPHI detector at LEP. %No anomalous signal has been observed. The contribution from The signal is compatible with the prediction of the Standard Model for the process $ e^+e^- \rightarrow \nu \bar{\nu}\gamma $, and the number of neutrino families has been determined to be $N_{\nu}=3.1 \pm 0.6 $. Limits have been derived on anomalous neutral gauge boson couplings and on compositeness in the framework of a specific model.
Published: 1996
Full Text: View/download PDF

27. Measurement of the B$^{0}_{d}$ oscillation frequency using kaons leptons and jet charge

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barate, R, Barbi, M S, Bardin, Dimitri Yuri, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bloch, D, Blume, M, Blyth, S, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Bosworth, S, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brillault, L, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Buys, A, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Chudoba, J, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Dufour, Y, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Ershaidat, N, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Ferrer, A, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gibbs, M, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hallgren, A, Hamacher, K, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamblot, S, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Maio, A, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Masik, J, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Myagkov, A, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, M, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Pindo, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Solovyanov, O, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zuberi, R, Zucchelli, G C, Zumerle, G, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: High Energy Physics::Phenomenology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment
Abstract: A measurement of the mass difference, \Delta m_d, between the two physical \mbox{B}^0_d states has been obtained from the analysis of the impact parameter distribution of a lepton emitted at large transverse momentum (p_t) relative to the jet axis and from the analysis of the flight distance distribution of secondary vertices tagged by either a high p_t lepton or an identified kaon. In the opposite hemisphere of the event, the charge of the initial quark has been evaluated using a high p_t lepton, a charged kaon or the mean jet charge. With 1.7 million hadronic Z^0 decays recorded by DELPHI between 1991 and 1993, \Delta m_d is found to be: \Delta m_d = 0.531^{+0.050}_{-0.046} ~(stat.) \pm 0.078 ~(syst.) ~ {\mathrm{ps}}^{-1} \, .
Published: 1996
Full Text: View/download PDF

28. An upper limit for $Br(Z^0 \rightarrow ggg)$ from Symmetric 3-jet $Z^0$ Hadronic Decays

Author: Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbi, M S, Bardin, Dimitri Yuri, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Berggren, M, Bertini, D, Bertrand, D, Besançon, M, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bizouard, M A, Bloch, D, Blume, M, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Buys, A, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Chudoba, J, Cindro, V, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J H, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Di Diodato, A, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Durand, J D, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Ferrer, A, Fichet, S, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gerdyukov, L N, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klapp, O, Klein, H, Klovning, A, Kluit, P M, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Lapin, V, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Libby, J, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Mahon, J R, Malmgren, T G M, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Masik, J, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Münich, K, Mulders, M, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Novák, M, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Pain, R, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, M, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sahr, O, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Serbelloni, L, Shellard, R C, Siegrist, P, Silvestre, R, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnova, O G, Smith, G R, Sokolov, A, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, van Apeldoorn, G W, van Dam, P, Van Eldik, J, Van Lysebetten, A, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wlodek, T, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zucchelli, G C, Zumerle, G, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU)
Subjects: High Energy Physics::Lattice, High Energy Physics::Phenomenology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: An upper limit for $BR(Z^0\rightarrow3g)$ is obtained from a correlation method, which distinguishes statistically between quark and gluon jets by using the difference in their charged particle multiplicity distributions. From the sample of threefold symmetric three--jet events collected by the DELPHI experiment at LEP during 1991-1994, the 95\% confidence level upper limit is deduced to be: $BR(Z^0\rightarrow3g)\leq 1.6\times 10^{-2}$ for the JADE and $BR(Z^0\rightarrow3g)\leq 1.5\times 10^{-2}$ for the DURHAM jet--finder.
Published: 1996
Full Text: View/download PDF

29. Study of rare b decays with the DELPHI detector at LEP

Author: Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbi, M S, Bardin, Dimitri Yuri, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Benvenuti, Alberto C, Berggren, M, Bertini, D, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bloch, D, Blume, M, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Buys, A, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Chabaud, V, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Chudoba, J, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Durand, J D, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Ferrer, A, Fichet, S, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gibbs, M, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamblot, S, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Last, I, Laugier, J P, Lauhakangas, R, Leser, G, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Libby, J, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Maio, A, Malychev, V, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Masik, J, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Myagkov, A, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Novák, M, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, M, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Pindo, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sahr, O, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sokolov, A, Solovyanov, O, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stevenson, K, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Todorova, S, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zucchelli, G C, Zumerle, G, UCL - SST/IRMP - Institut de recherche en mathématique et physique, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, LEP (IHEF, IoP, FNWI), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Cossutti, F., DELLA RICCA, Giuseppe, Lanceri, Livio, Poropat, Paolo, Vitale, Lorenzo, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Delphi, Collaboration, Abreu, P., Adam, W., and Canale, Vincenzo
Subjects: Quark, charmless decay, Particle physics, Physics and Astronomy (miscellaneous), Meson, Electron–positron annihilation, Hadron, DELPHI, rare decay of beauty particles, 01 natural sciences, Nuclear physics, S-GAMMA%22">B->S-GAMMA, SEARCH, ASYMMETRIES, STANDARD, MESONS, 0103 physical sciences, Radiative transfer, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Physics, Gauge boson, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Detector, Fermion, LARGE ELECTRON POSITRON COLLIDER, PARTICLE PHYSICS, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: Rare decays of beauty particles were studied in several charmless modes using the data collected with the DELPHI detector at LEP from 1991 to 1994. These decays are mediated by both tree level $b \rightarrow u$ and one-loop penguin $b \rightarrow s$, $d$ transitions. Evidence for charmless $B$ decays was obtained in two body hadronic modes. The branching ratios of $B^{0}_{d,s}$ to $\pi^+ \pi^-$ or $K^+ \pi^-$ and $B^{-}_{u}$ to $\rho^0 \pi^-$ or $K^{*0} \pi^-$ were found to be $(2.8 ^{+1.5}_{-1.0} \pm 0.2) \times 10^{-5}$ and $(1.7 ^{+1.2}_{-0.8} \pm 0.2) \times 10^{-4}$ respectively. The fraction of these decays with a charged kaon in the final state that is not from the spectator $s$ quark, was measured to be $0.58 \pm 0.18$. Upper limits were set at 90\% confidence level on the branching ratios %for other two body modes including the $\Lambda_b^0\to pK^-$ decay and for three and four body charmless hadronic decays in the range of \mbox{$(1 - 3)\times10^{-4}$}, for inclusive radiative $b \rightarrow s \gamma$ decays at $5.4\times10^{-4}$, for the exclusive radiative decays $B_{d}^{0} \rightarrow K^*(892)^0\gamma$ and $B_{s}^{0} \rightarrow \phi(1020) \gamma$ at $2.1\times10^{-4}$ and $7.0\times10^{-4}$ respectively, and for dineutrino decays, $b \rightarrow s \nu \bar \nu$, in the exclusive channels $B_{d}^{0} \rightarrow K^*(892)^0 \nu \bar \nu$ and $B_{s}^{0} \rightarrow \phi(1020) \nu \bar \nu$ at 1.0 $\times$ 10$^{-3}$ and 5.4 $\times$ 10$^{-3}$ respectively. The limits on dineutrino decays constrain theories with a new $U(1)$ gauge boson coupling predominantly to the third family of fermions.
Published: 1996
Full Text: View/download PDF

30. Search for pair production of heavy objects in 4-jet events at sqrt {s}$=130-136 GeV

Author: Adam, W., Adye, T., Agasi, E., Ajinenko, I., Alekseev, G. D., Alemany, R., Allport, P. P., Almehed, S., Amaldi, U., Amato, S., Andreazza, A., Andrieux, M. L., Antilogus, P., Apel, W. D., Asman, B., Augustin, J. E., Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barate, R., Barbi, M., Barbiellini, G., Bardin, D. Y., Baroncelli, A., Baring, O., Barrio, J. A., Bartl, W., Bates, M. J., Battaglia, M., Baubillier, M., Baudot, J., Becks, K. H., Begalli, M., Beilliere, P., Belokopytov, Y., Belous, K., Benvenuti, A. C., Berggren, M., Bertini, D., Bertrand, D., Besancon, M., Bianchi, F., Bigi, M., Bilenky, M. S., Billoir, P., Bloch, D., Blume, M., Bolognese, T., Bonesini, M., Bonivento, W., P. S. L., Borisov, G., Bosio, C., Botner, O., Boudinov, E., Bouquet, B., Bourdarios, C., T. J. V., Bozzo, M., Branchini, P., Brand, K. D., Brenke, T., Brenner, R. A., Bricman, C., R. C. A., Bruckman, P., Brunet, J. M., Bugge, L., Buran, T., Burgsmueller, T., Buschmann, P., Buys, A., Cabrera, S., Caccia, M., Calvi, M., A. J. C., Camporesi, T., Canale, V., Canepa, M., Cankocak, K., Cao, F., Carena, F., Carroll, L., Caso, C., M. V. C., Cattai, A., Cavallo, F. R., Chabaud, V., Charpentier, P., Chaussard, L., Checchia, P., Chelkov, G. A., Chen, M., Chierici, R., Chliapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Cindro, V., Collins, P., Contreras, J. L., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Cowell, J. H., Crawley, H. B., Crennell, D., Crosetti, G., Maestro, J. C., Czellar, S., Dahljensen, E., Dahm, J., Dalmagne, B., Dam, M., Damgaard, G., Dauncey, P. D., Davenport, M., Dasilva, W., Defoix, C., Deghorain, A., Dellaricca, G., Delpierre, P., Demaria, N., Deangelis, A., Deboer, W., Debrabandere, S., Declercq, C., Delavaissiere, C., Delotto, B., Demin, A., Depaula, L., Desaintjean, C., Dijkstra, H., Diciaccio, L., Didiodato, A., Djama, F., Dolbeau, J., Donszelmann, M., Doroba, K., Dracos, M., Drees, J., Drees, K. A., Dris, M., Durand, J. D., Edsall, D., Ehret, R., Eigen, G., Ekelof, T., Ekspong, G., Elsing, M., Engel, J. P., Erzen, B., Santo, M. E., Falk, E., Fassouliotis, D., Feindt, M., Ferrer, A., Fichet, S., Filippas, T. A., Firestone, A., Fischer, P. A., Foeth, H., Fokitis, E., Fontanelli, F., Formenti, F., Franek, B., Frenkiel, P., Fries, D. C., Frodesen, A. G., Fuldaquenzer, F., Fuster, J., Galloni, A., Gamba, D., Gandelman, M., Garcia, C., Garcia, J., Gaspar, C., Gasparini, Ugo, Gavillet, P., Gazis, E. N., Gele, D., Gerber, J. P., Gokieli, R., Golob, B., Gopal, G., Gorn, L., Gorski, M., Gouz, Y., Gracco, V., Graziani, E., Green, C., Grefrath, A., Gris, P., Grosdidier, G., Grzelak, K., Gumenyuk, S., Gunnarsson, P., Gunther, M., Guy, J., Hahn, F., Hahn, S., Hajduk, Z., Hallgren, A., Hamacher, K., Hao, W., Harris, F. J., Hedberg, V., Henriques, R., Hernandez, J. J., Herquet, P., Herr, H., Hessing, T. L., Higon, E., Hilke, H. J., Hill, T. S., Holmgren, S. O., Holt, P. J., Holthuizen, D., Hoorelbeke, S., Houlden, M., Hrubec, J., Huet, K., Hultqvist, K., Jackson, J. N., Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jeanmarie, B., Johnsson, E. K., Jonsson, L., Jonsson, P., Joram, C., Juillot, P., Kaiser, M., Kapusta, F., Karafasoulis, K., Karlsson, M., Karvelas, E., Katsanevas, S., Katsoufis, E. C., Keranen, R., Khokhlov, Y., Khomenko, B. A., Khovanski, N. N., King, B., Kjaer, N. J., Klapp, O., Klein, H., Klovning, A., Kluit, P., Koene, B., Kokkinias, P., Koratzinos, M., Korcyl, K., Kostioukhine, V., Kourkoumelis, C., Kouznetsov, O., Krammer, M., Kreuter, C., Kronkvist, I., Krumstein, Z., Krupinski, W., Kubinec, P., Kucewicz, W., Kurvinen, K., Lacasta, C., Laktineh, I., Lamsa, J. W., Lanceri, L., Lane, D. W., Langefeld, P., Lapin, V., Laugier, J. P., Lauhakangas, R., Leder, G., Ledroit, F., Lefebure, V., Legan, C. K., Leitner, R., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Libby, J., Liko, D., Lindner, R., Lipniacka, A., Lippi, I., Loerstad, B., Loken, J. G., Lopez, J. M., Loukas, D., Lutz, P., Lyons, L., Macnaughton, J., Maehlum, G., Mahon, J. R., Maio, A., T. G. M., Malychev, V., Mandi, F., Marco, R., Marechal, B., Margoni, Martino, Marin, J. C., Mariotti, C., Markou, A., Martinezrivero, C., Martinezvidal, F., S. M. I., Masik, J., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, M., Mccubbin, M., Mckay, R., Nulty, R. M., Medbo, J., Merk, M., Meroni, C., Meyer, S., Meyer, W. T., Miagkov, A., Michelotto, M., Migliore, E., Mirabito, L., Mitaroff, W. A., Mjoernmark, U., Moa, T., Moeller, R., Moenig, K., Monge, M. R., Morettini, P., Mueller, H., Muenich, K., Mundim, L. M., Murray, W. J., Muryn, B., Myatt, G., Naraghi, F., Navarria, F. L., Navas, S., Nawrocki, K., Negri, P., Nemecek, S., Neumann, W., Neumeister, N., Nicolaidou, R., Nielsen, B. S., Niewenhuizen, M., Nikolaenko, V., Niss, P., Nomerotski, A., Normand, A., Oberschultebeckmann, W., Obraztsov, V., Olshevski, A. G., Onofre, A., Orava, R., Osterberg, K., Ouraou, A., Paganini, P., Paganoni, M., Pages, P., Pain, R., Palka, H., Papadopoulou, T. D., Papageorgiou, K., Pape, L., Parkes, C., Parodi, F., Passeri, A., Pegoraro, M., Peralta, L., Pernegger, H., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Petrovyck, M., Phillips, H. T., Piana, G., Pierre, F., Pimenta, M., Plaszczynski, S., Podobrin, O., Pol, M. E., Polok, G., Poropat, P., Pozdniakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Ratoff, P. N., Read, A. L., Reale, M., Rebecchi, P., Redaelli, N. G., Regler, M., Reid, D., Renton, P. B., Resvanis, L. K., Richard, F., Richardson, J., Ridky, J., Rinaudo, G., Ripp, I., Romero, A., Roncagliolo, I., Ronchese, Paolo, Roos, L., Rosenberg, E. J., Rosso, E., Roudeau, P., Rovelli, T., Ruckstuhl, W., Ruhlmannkleider, V., Ruiz, A., Rybicki, K., Saarikko, H., Sacquin, Y., Sadovsky, A., Sahr, O., Sajot, G., Salt, J., Sanchez, J., Sannino, M., Schimmelpfennig, M., Schneider, H., Schwickerath, U., M. A. E., Sciolla, G., Scuri, F., Seager, P., Sedykh, Y., Segar, A. M., Seitz, A., Sekulin, R., Serbelloni, L., Shellard, R. C., Siccama, I., Siegrist, P., Silvestro, R., Simonetti, S., Simonetto, Franco, Sisakian, A. N., Sitar, B., Skaali, T. B., Smadja, G., Smirnov, N., Smirnova, O., Smith, G. R., Sokolov, A., Sosnowski, R., Souzasantos, D., Spassov, T., Spiriti, E., Sponholz, P., Squarcia, S., Stanescu, C., Stapnes, S., Stavitski, I., Stevenson, K., Stichelbaut, F., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Tavernet, J. P., Tchikilev, O., Thomas, J., Tilquin, A., Timmermans, J., Tkatchev, L. G., Todorov, T., Todorova, S., Toet, D. Z., Tomaradze, A., Tome, B., Tonazzo, A., Tortora, L., Transtromer, G., Treille, D., Trischuk, W., Tristram, G., Trombini, A., Troncon, C., Tsirou, A., Turluer, M. L., Tyapkin, I. A., Tyndel, M., Tzamarias, S., Ueberschaer, B., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Vanapeldoorn, G. W., Vandam, P., Vandoninck, W. K., Vaneldik, J., Vassilopoulos, N., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verlato, M., Vertogradov, L. S., Vilanova, D., Vincent, P., Vitale, L., Vlasov, E., Vodopyanov, A. S., Vrba, V., Wahlen, H., Walck, C., Weierstall, M., Weilhammer, P., Weiser, C., Wetherell, A. M., Wicke, D., Wickens, J. H., Wielers, M., Wilkinson, G. R., W. S. C., Winter, M., Witek, M., Woschnagg, K., Yip, K., Yushchenko, O., Zach, F., Zaitsev, A., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, Z. I., Zito, M., Zontar, D., Zucchelli, G. C., Zumerle, Gianni, LEP (IHEF, IoP, FNWI), BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Lanceri, Livio, Poropat, Paolo, Vitale, Lorenzo, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: Particle physics, Aleph, Physics and Astronomy (miscellaneous), ENERGIES, Electron–positron annihilation, Hadron, HIGGS BOSONS, Jet (particle physics), Partícules (Física nuclear), DECAYS, Nuclear physics, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Detectors de radiació, Boson, DELPHI, Physics, High Energy Physics::Phenomenology, Supersymmetry, LARGE ELECTRON POSITRON COLLIDER, Pair production, PARTICLE PHYSICS, Higgs boson, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: Results are presented of a search for pair production of heavy objects decaying into four hadronic jets, as expected for example from associated or pair production of MSSM Higgs bosons, hA or H$^+$H$^-$, using a data sample of $5.9\,$pb$^{-1}$ of $e^+ e^-$ collisions at $\sqrt{s}=130$-$136\,{\mathrm {GeV}}$ collected with the DELPHI detector at LEP in November 1995. The data and expectations from standard processes agree after four-jet selections. An analysis based on $b$-tagging finds no hA candidate with high mass. A study optimized to search for H$^+$H$^-$ events with mass in the 40-50$\,{\mathrm{GeV}}/c^2$ range also finds no candidate. Finally a comparison is made with a recent ALEPH analysis which found an excess of four-jet events with high multiplicity and high mass. Such a signal is not observed in the DELPHI data, although a slight excess in the mass region around $105\,{\mathrm{GeV}}/c^2$ is seen.
Published: 1996
Full Text: View/download PDF

31. Search for exclusive decays of the Lambda_b baryon and measurement of its mass

Author: Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., Alekseev, G. D., Alemany, R., Allport, P. P., Almehed, S., Amaldi, U., Amato, S., Andreazza, A., Andrieux, M. L., Antilogus, P., Apel, W. D., Arnoud, Y., Asman, B., Augustin, J. E., Augustinus, A., Baillon, A., Bambade, P., Barao, F., Barate, R., Barbi, M., Bardin, D. Y., Baroncelli, A., Barring, O., Barrio, J. A., Bartl, W., Bates, M. J., Battaglia, M., Baubillier, M., Baudot, J., Becks, K. H., Begalli, M., Beilliere, P., Belokopytov, Y., Benvenuti, A. C., Berggren, M., Bertrand, D., Bianchi, F., Bigi, M., Bilenky, M. S., Billoir, P., Bloch, D., Blume, M., Blyth, S., Bolognese, T., Bonesini, M., Bonivento, W., Booth, P. S. L., Borisov, G., Bosio, C., Bosworth, S., Botner, O., Boudinov, E., Bouquet, B., Bourdarios, C., Bowcock, T. J. V., Bozzo, M., Branchini, P., Brand, K. D., Brenke, T., Brenner, R. A., Bricman, C., Brillault, L., Brown, R. C. A., Bruckman, P., Brunet, J. M., Bugge, L., Buran, T., Burgsmueller, T., Buschmann, P., Buys, A., Cabrera, S., Caccia, M., Calvi, M., Rozas, A. J. C., Camporesi, T., Canale, V., Canepa, M., Cankocak, K., Cao, F., Carena, F., Carroll, L., Caso, C., Gimenez, M. V. C., Cattai, A., Cavallo, F. R., Cerrito, L., Chabaud, V., Chapkin, M., Charpentier, P., Chaussard, L., Chauveau, J., Checchia, P., Chelkov, G. A., Chen, M., Chierici, R., Chliapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Cindro, V., Collins, P., Contreras, J. L., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Crawley, H. B., Crennell, D., Crosetti, G., Maestro, J. C., Czellar, S., Dahljensen, E., Dahm, J., Dalmagne, B., Dam, M., Damgaard, G., Dauncey, P. D., Davenport, M., Dasilva, W., Defoix, C., Deghorain, A., Dellaricca, G., Delpierre, P., Demaria, N., Deangelis, A., Deboer, W., Debrabandere, S., Declercq, C., Delavaissiere, C., Delotto, B., Demin, A., Depaula, L., Desaintjean, C., Dijkstra, H., Diciaccio, L., Djama, F., Dolbeau, J., Donszelmann, M., Doroba, K., Dracos, M., Drees, J., Drees, K. A., Dris, M., Dufour, Y., Edsall, D., Ehret, R., Eigen, G., Ekelof, T., Ekspong, G., Elsing, M., Engel, J. P., Ershaidat, N., Erzen, B., Santo, M. E., Falk, E., Fassouliotis, D., Feindt, M., Fenyuk, A., Ferrer, A., Filippas, T. A., Firestone, A., Fischer, P. A., Foeth, H., Fokitis, E., Fontanelli, F., Formenti, F., Franek, B., Frenkiel, P., Fries, D. C., Frodesen, A. G., Fruhwirth, R., Fuldaquenzer, F., Fuster, J., Galloni, A., Gamba, D., Gandelman, M., Garcia, C., Garcia, J., Gaspar, C., Gasparini, U., Gavillet, P., Gazis, E. N., Gele, D., Gerber, J. P., Gibbs, M., Gokieli, R., Golob, B., Gopal, G., Gorn, L., Gorski, M., Gouz, Y., Gracco, V., Graziani, E., Grosdidier, G., Grzelak, K., Gumenyuk, S., Gunnarsson, P., Gunther, M., Guy, J., Hahn, F., Hahn, S., Hajduk, Z., Hallgren, A., Hamacher, K., Hao, W., Harris, F. J., Hedberg, V., Henriques, R., Hernandez, J. J., Herquet, P., Herr, H., Hessing, T. L., Higon, E., Hilke, H. J., Hill, T. S., Holmgren, S. O., Holt, P. J., Holthuizen, D., Hoorelbeke, S., Houlden, M., Hrubec, J., Huet, K., Hultqvist, K., Jackson, J. N., Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jeanmarie, B., Johansson, E. K., Jonsson, L., Jonsson, P., Joram, C., Juillot, P., Kaiser, M., Kapusta, F., Karafasoulis, K., Karlsson, M., Karvelas, E., Katsanevas, S., Katsoufis, E. C., Keranen, R., Khokhlov, Y., Khomenko, B. A., Khovanski, N. N., King, B., Kjaer, N. J., Klein, H., Klovning, A., Kluit, P., Koene, B., Kokkinias, P., Koratzinos, M., Korcyl, K., Kourkoumelis, C., Kouznetsov, O., Kramer, P. H., Kreuter, C., Kronkvist, I., Krumstein, Z., Krupinski, W., Kubinec, P., Kucewicz, W., Kurvinen, K., Lacasta, C., Laktineh, I., Lamblot, S., Lamsa, J. W., Lanceri, L., Lane, D. W., Langefeld, P., Last, I., Laugier, J. P., Lauhakangas, R., Leder, G., Ledroit, F., Lefebure, V., Legan, C. K., Leitner, R., Lemoigne, Y., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Liko, D., Lindner, R., Lipniacka, A., Lippi, I., Loerstad, B., Loken, J. G., Lopez, J. M., Loukas, D., Lutz, P., Lyons, L., Macnaughton, J., Maehlum, G., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J. C., Mariotti, C., Markou, A., Maron, T., Martinezrivero, C., Martinezvidal, F., Garcia, S. M. I., Masik, J., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, M., Mccubbin, M., Mckay, R., Mcnulty, R., Medbo, J., Merk, M., Meroni, C., Meyer, S., Meyer, W. T., Michelotto, M., Migliore, E., Mirabito, L., Mitaroff, W. A., Mjoernmark, U., Moa, T., Moeller, R., Moenig, K., Monge, M. R., Morettini, P., Mueller, H., Mundim, L. M., Murray, W. J., Muryn, B., Myatt, G., Naraghi, F., Navarria, F. L., Navas, S., Nawrocki, K., Negri, P., Neumann, W., Neumeister, N., Nicolaidou, R., Nielsen, B. S., Nieuwenhuizen, M., Nikolaenko, V., Niss, P., Nomerotski, A., Normand, A., Novak, M., Oberschultebeckmann, W., Obraztsov, V., Olshevski, A. G., Orava, R., Osterberg, K., Ouraou, A., Paganini, P., Paganoni, M., Pages, P., Palka, H., Papadopoulou, T. D., Papageorgiou, K., Pape, L., Parkes, C., Parodi, F., Passeri, A., Pegoraro, M., Peralta, L., Pernegger, H., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Petrovyck, M., Phillips, H. T., Piana, G., Pierre, F., Pimenta, M., Pindo, M., Plaszczynski, S., Podobrin, O., Pol, M. E., Polok, G., Poropat, P., Pozdniakov, V., Prest, M., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Ratoff, P. N., Read, A. L., Reale, M., Rebecchi, P., Redaelli, N. G., Regler, M., Reid, D., Renton, P. B., Resvanis, L. K., Richard, F., Richardson, J., Ridky, J., Rinaudo, G., Ripp, I., Romero, A., Roncagliolo, I., Ronchese, P., Roos, L., Rosenberg, E. I., Rosso, E., Roudeau, P., Rovelli, T., Ruckstuhl, W., Ruhlmannkleider, V., Ruiz, A., Rybicki, K., Saarikko, H., Sacquin, Y., Sadovsky, A., Sajot, G., Salt, J., Sanchez, J., Sannino, M., Schimmelpfennig, M., Schneider, H., Schwickerath, U., Schyns, M. A. E., Sciolla, G., Scuri, F., Seager, P., Sedykh, Y., Segar, A. M., Seitz, A., Sekulin, R., Shellard, R. C., Siccama, I., Siegrist, P., Simonetti, S., Simonetto, F., Sisakian, A. N., Sitar, B., Skaali, T. B., Smadja, G., Smirnov, N., Smirnova, O., Smith, G. R., Solovianov, O., Sosnowski, R., Souzasantos, D., Spassov, T., Spiriti, E., Sponholz, P., Squarcia, S., Stanescu, C., Stapnes, S., Stavitski, I., Stichelbaut, F., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Tavernet, J. P., Tchikilev, O., Tilquin, A., Timmermans, J., Tkatchev, L. G., Todorov, T., Toet, D. Z., Tomaradze, A., Tome, B., Tonazzo, A., Tortora, L., Transtromer, G., Treille, D., Trischuk, W., Tristram, G., Trombini, A., Troncon, C., Tsirou, A., Turluer, M. L., Tyapkin, I. A., Tyndel, M., Tzamarias, S., Ueberschaer, B., Ullaland, O., Uvarov, V., Valenti, G., Erik Silvio Vallazza, Vandervelde, C., Vanapeldoorn, G. W., Vandam, P., Vandoninck, W. K., Vaneldik, J., Vassilopoulos, N., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verlato, M., Vertogradov, L. S., Vilanova, D., Vincent, P., Vitale, L., Vlasov, E., Vodopyanov, A. S., Vrba, V., Wahlen, H., Walck, C., Waldner, F., Weierstall, M., Weilhammer, P., Weiser, C., Wetherell, A. M., Wicke, D., Wickens, J. H., Wielers, M., Wilkinson, G. R., Williams, W. S. C., Winter, M., Witek, M., Woschnagg, K., Yip, K., Yushchenko, O., Zach, F., Zaitsev, A., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N. I., Zito, M., Zontar, D., Zuberi, R., Zucchelli, G. C., Zumerle, G., LEP (IHEF, IoP, FNWI), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), UCL - SST/IRMP - Institut de recherche en mathématique et physique, Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Cossutti, F., DELLA RICCA, Giuseppe, Lanceri, Livio, Poropat, Paolo, and Vitale, Lorenzo
Subjects: Nuclear and High Energy Physics, Particle physics, Hadron, Combined use, Lambda, Tracking (particle physics), 01 natural sciences, Partícules (Física nuclear), Nuclear physics, beauty baryon, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Nuclear Experiment, Detectors de radiació, DELPHI, Physics, 010308 nuclear & particles physics, Detector, LARGE ELECTRON POSITRON COLLIDER, Baryon, particle identification, PARTICLE PHYSICS, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: A search for fully reconstructed \lb beauty baryons is performed using about 3 million Z decays collected with the DELPHI detector at LEP. The analysis relies on the combined use of the accurate tracking and of the hadron identification capabilities of DELPHI. A total of four events has been found, three in the \lc\ppm channel and one in the \lc\a1m channel over a small background. The \lb beauty baryon mass is measured to be (~ 5668 \pm 16~ ({\rm stat.}) \pm 8~({\rm syst.})~)~ \mv.
Published: 1996
Full Text: View/download PDF

32. Charged particle multiplicity in $e^+e^-$ interactions at $\sqrt{s}$ = 130 GeV

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, Alemany, R, Allport, P P, Almehed, S, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbi, M S, Bardin, Dimitri Yuri, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bloch, D, Blume, M, Blyth, S, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Bosworth, S, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brillault, L, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Buys, A, Cabrera, S, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G A, Chen, M, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Deghorain, A, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Dufour, Y, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Ershaidat, N, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Ferrer, A, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gerdyukov, L N, Gibbs, M, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Grosdidier, G, Grzelak, K, Gumenyuk, S A, Gunnarsson, P, Günther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Hoorelbeke, S, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khokhlov, Yu A, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamblot, S, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Lokajícek, M, Loken, J G, López, J M, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Maio, A, Malychev, V, Mandl, F, Marco, J, Marco, R P, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Nawrocki, K, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Palka, H, Papadopoulou, T D, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, M, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Pindo, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schimmelpfennig, M, Schneider, H, Schwickerath, U, Schyns, M A E, Sciolla, G, Scuri, F, Seager, P, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Solovyanov, O, Sosnowski, R, Souza-Santos, D, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Toet, D Z, Tomaradze, A G, Tomé, B, Tonazzo, A, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weierstall, M, Weilhammer, Peter, Weiser, C, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zuberi, R, Zucchelli, G C, Zumerle, G, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: High Energy Physics::Phenomenology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment
Abstract: From the data collected by DELPHI at LEP in autumn 1995, the multiplicity of charged particles at a hadronic energy of 130 GeV has been measured to be = 23.84 \pm 0.51 (stat) \pm 0.52 (syst). When compared to lower energy data, the value measured is consistent with the evolution predicted by QCD with corrections at next-to-leading order, for a value \alpha_s(130 {\mathrm{GeV}}) = 0.105 \pm 0.003 (stat) \pm 0.008 (syst).
Published: 1996
Full Text: View/download PDF

33. Study of charm mesons production in Z$^{0}$ decays and measurement of $\Gamma_{c}$/$\Gamma_{h}$

Author: Bloch, D, Engel, J P, Gerber, J P, Juillot, P, Strub, R, Ferrer, E J, Stocchi, A, Paganini, P, and Roudeau, Patrick
Subjects: Particle Physics - Experiment
Published: 1995

34. Production of charged particles, K$_{S}^{0}$, K$^{\pm}$, p and $\Lambda$ in Z --> b$\overline{b}$ events and in the decay of b hadrons

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, Allport, P P, Almehed, S, D'Almeida, F, Alvsvaag, S J, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Bardin, Dimitri Yuri, Barker, G J, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Beltran, P, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bjarne, J, Bloch, D, Blume, M, Blyth, S, Bocci, V, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Bostjancic, B, Bosworth, S, Botner, O, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenner, R A, Bricman, C, Brillault, L, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Buys, A, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carrilho, P, Carroll, L, Caso, Carlo, Cassio, V, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Chan, A, Chapkin, M M, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G A, Chliapnikov, P V, Chochula, P, Chorowicz, V, Chrin, J T M, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Daum, A, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, De Boeck, H, de Boer, Wim, De Brabandere, S, De Clercq, C, De Fez Laso, M D M, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Dufour, Y, Dupont, F, Edsall, D M, Ehret, R, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Ershaidat, N, Espirito-Santo, M C, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Ferrer, A, Filippas-Tassos, A, Firestone, A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Fousset, J L, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Fulda-Quenzer, F, Fürstenau, H, Fuster, J A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gillespie, D, Gokieli, R, Golob, B, Gómez-Cadenas, J J, Gopal, Gian P, Gorn, L, Górski, M, Gracco, Valerio, Grard, F, Graziani, E, Grosdidier, G, Gunnarsson, P, Guy, J, Haedinger, U, Hahn, F, Hahn, M, Hahn, S, Haider, S, Hajduk, Z, Hakansson, A, Hallgren, A, Hamacher, K, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Hernando, J A, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Honoré, P F, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Ioannou, P, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Juillot, P, Kaiser, M, Kalmus, George Ernest, Kapusta, F, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Köhne, J H, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Królikowski, J, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kulka, K, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamblot, S, Lambropoulos, C, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Lapin, V, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Lokajícek, M, Loken, J G, López-Fernandez, A, López-Aguera, M A, Loukas, D, Lozano-Bahilo, J, Lutz, P, Lyons, L, Maehlum, G, Maillard, J, Maio, A, Maltezos, A, Malychev, V, Mandl, F, Marco, J, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Meroni, C, Meyer, W T, Michelotto, M, Migliore, E, Mikulec, I, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Palka, H, Papadopoulou, T D, Pape, L, Parodi, F, Passeri, A, Pegoraro, M, Pennanen, J, Peralta, L, Perevozchikov, V, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Ronjin, V M, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schneider, H, Schyns, M A E, Sciolla, G, Scuri, F, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stäck, H, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stavropoulos, G D, Stepaniak, K, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Theodosiou, G E, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Toet, D Z, Tomaradze, A G, Tomé, B, Torassa, E, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Überschär, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Valls Ferrer, J A, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Voutilainen, M, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Wehr, A, Weierstall, M, Weilhammer, Peter, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wormser, G, Woschnagg, K, Yip, K, Yu, L, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zuberi, R, Zucchelli, G C, and Zumerle, G
Subjects: Particle Physics - Experiment
Published: 1995

35. Inclusive measurements of the K$^{\pm}$ and p/$\overline{p}$ production in hadronic Z$^0$ decays

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, Allport, P P, Almehed, S, Alvsvaag, S J, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Arnoud, Y, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barate, R, Bardin, Dimitri Yuri, Barker, G J, Baroncelli, A, Barrio, J A, Bartl, Walter, Barão, F, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Belous, K S, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bjarne, J, Bloch, D, Blume, M, Blyth, S, Bocci, V, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Bosjancic, B, Bosworth, S, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenner, R A, Bricman, C, Brillault, L, Brown, R C A, Brunet, J M, Brückman, P, Bugge, L, Buran, T, Buys, A, Bärring, O, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carrilho, P, Carroll, L, Caso, Carlo, Cassio, V, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G A, Chikilev, O G, Chliapnikov, P V, Chochula, P, Chorowicz, V, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, D'Almagne, B, Da Silva, W, Dahl-Jensen, Erik, Dahm, J, Dam, M, Damgaard, G, Daum, A, Dauncey, P D, Davenport, Martyn, De Angelis, A, De Boeck, H, De Brabandere, S, De Clercq, C, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Defoix, C, Della Ricca, G, Delpierre, P A, Demaria, N, Di Ciaccio, Lucia, Dijkstra, H, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Dufour, Y, Dupont, F, Dönszelmann, M, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Ershaidat, N, Espirito-Santo, M C, Falaleev, V P, Falk, E, Fassouliotis, D, Feindt, Michael, Ferrer, A, Filippas-Tassos, A, Firestone, A, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Föth, H, Fürstenau, H, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gillespie, D, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Gracco, Valerio, Grard, F, Graziani, E, Grosdidier, G, Gunnarsson, P, Guy, J, Górski, M, Günther, M, Haedinger, U, Hahn, F, Hahn, M, Hahn, S, Haider, S, Hajduk, Z, Hakansson, A, Hallgren, A, Hamacher, K, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Ioannou, P, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Joram, Christian, Juillot, P, Jönsson, L B, Kaiser, M, Kalmus, George Ernest, Kapusta, F, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Kokkinias, P, Koratzinos, M, Kostyukhin, V, Kourkoumelis, C, Kramer, P H, Kreuter, C, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Królikowski, J, Kubinec, P, Kucewicz, W, Kurvinen, K L, Kuznetsov, O, Köhne, J H, Köne, B, La Vaissière, C de, Lacasta, C, Laktineh, I, Lamblot, S, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Lapin, V, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lokajícek, M, Loken, J G, Loukas, D, Lutz, P, Lyons, L, López, J M, López-Aguera, M A, López-Fernandez, A, Lörstad, B, MacNaughton, J N, Maehlum, G, Maio, A, Malychev, V, Mandl, F, Marco, J, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martí i García, S, Martínez-Rivero, C, Martínez-Vidal, F, Maréchal, B, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Meroni, C, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Monge, M R, Morettini, P, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Mönig, K, Møller, R, Müller, H, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Negri, P, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Némécek, S, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Palka, H, Papadopoulou, T D, Pape, L, Parodi, F, Passeri, A, Pegoraro, M, Pennanen, J, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Ribicki, K, Richard, F, Richardson, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Ruhlmann-Kleider, V, Ruiz, A, Rídky, J, Rückstuhl, W, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sannino, M, Schneider, H, Schyns, M A E, Sciolla, G, Scuri, F, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stepaniak, K, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Stäck, H, Szczekowski, M, Szeptycka, M, Sánchez, J, Tabarelli de Fatis, T, Tavernet, J P, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Toet, D Z, Tomaradze, A G, Tomé, B, Torassa, E, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van Doninck, W K, Van Eldik, J, Van der Velde, C, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Voutilainen, M, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Wehr, A, Weierstall, M, Weilhammer, Peter, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wormser, G, Woschnagg, K, Yip, K, Yu, L, Yushchenko, O P, Zach, F, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zuberi, R, Zucchelli, G C, Zumerle, G, de Boer, Wim, van Apeldoorn, G W, van Dam, P, Åsman, B, Österberg, K, Überschär, B, Überschär, S, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)
Subjects: [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Particle Physics - Experiment
Published: 1995
Full Text: View/download PDF

36. A measurement of B$^{+}$ and B$^{0}$ lifetimes using $\overline{D}$l$^{+}$ events

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, Allport, P P, Almehed, S, Alvsvaag, S J, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbiellini, Guido, Bardin, Dimitri Yuri, Barker, G J, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bloch, D, Blume, M, Blyth, S, Bocci, V, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Bosworth, S, Botner, O, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenner, R A, Bricman, C, Brillault, L, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Buys, A, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carrilho, P, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Chapkin, M M, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G A, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Daum, A, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, De Boeck, H, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Dufour, Y, Dupont, F, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Ershaidat, N, Erzen, B, Falk, E, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Ferrer, A, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fürstenau, H, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gibbs, M, Gillespie, D, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Grosdidier, G, Gunnarsson, P, Günther, M, Guy, J, Haedinger, U, Hahn, F, Hahn, M, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Ioannou, P, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kalmus, George Ernest, Kapusta, F, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Köhne, J H, Köne, B, Kokkinias, P, Koratzinos, M, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Królikowski, J, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamblot, S, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Lokajícek, M, Loken, J G, López, J M, López-Fernandez, A, López-Aguera, M A, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Maio, A, Malychev, V, Mandl, F, Marco, J, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, M, McNulty, M, Medbo, J, Meroni, C, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Negri, P, Némécek, S, Neumann, W, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Palka, H, Papadopoulou, T D, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Ronjin, V M, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schneider, H, Schyns, M A E, Sciolla, G, Scuri, F, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Solovyanov, O, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Squarcia, S, Stäck, H, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stepaniak, K, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Toet, D Z, Tomaradze, A G, Tomé, B, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Überschär, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van der Velde, V, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Wehr, A, Weierstall, M, Weilhammer, Peter, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zacharatou-Jarlskog, C, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zuberi, R, Zucchelli, G C, Zumerle, G, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU)
Subjects: [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment
Abstract: A measurement of B meson lifetimes is presented using data collected from 1991 to 1993 by the DELPHI detector at the LEP collider. Samples of events with a D meson and a lepton in the same jet are selected where \overline{\mathrm{D}}^0 \ell^+ and \mathrm{D}^{*-} \ell^+ events originate mainly from the semileptonic decays of B^+ and B^0 mesons, respectively. From the reconstructed B decay length and the estimated B momentum, taking into account the dilution due to B decays into \overline{\mathrm{D}}^{**} \ell^+ \nu, the following B meson lifetimes and lifetime ratio are measured: \begin{eqnarray*} \tau(\mathrm{B}^+) &=& 1.61^{+0.16}_{-0.16} \;(\mathrm{stat}.) \pm 0.12 \;(\mathrm{syst.}) \;\mathrm{ ps} \\ \tau(\mathrm{B}^0) &=& 1.61^{+0.14}_{-0.13} \;(\mathrm{stat}.) \pm 0.08 \;(\mathrm{syst.}) \;\mathrm{ ps} \\ \tau(\mathrm{B}^+) / \tau(\mathrm{B}^0) &=& 1.00^{+0.17}_{-0.15} \;(\mathrm{stat.}) \pm 0.10 \;(\mathrm{syst.}) \end{eqnarray*} and an average lifetime of B^+ and B^0 mesons is obtained: \begin{eqnarray*} \tau(\mathrm{B}) = 1.61^{+0.08}_{-0.07} \;\mathrm{(stat.)} \pm 0.05 \;\mathrm{(syst.) \;ps} \end{eqnarray*}
Published: 1995
Full Text: View/download PDF

37. Measurements of the Lineshape of the $Z^{0}$ and Determination of Electroweak Parameters from its Hadronic and Leptonic Decays

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Aleksan, Roy, Alekseev, G D, Algeri, A, Allport, P P, Almehed, S, D'Almeida, F, Alvsvaag, S J, Amaldi, Ugo, Andreazza, A, Antilogus, P, Apel, W D, Apsimon, R J, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbiellini, Guido, Bardin, Dimitri Yuri, Barker, G J, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Beltran, P, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bjarne, J, Bloch, D, Blocki, J, Blyth, S, Bocci, V, Bogolubov, P N, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Bostjancic, B, Bosworth, S, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Braibant, S, Branchini, P, Brand, K D, Brenner, R A, Briand, H, Bricman, C, Brillault, L, Brown, R C A, Brückman, P, Brunet, J M, Budziak, A P, Bugge, L, Buran, T, Buys, A, Buytaert, J, Caccia, M, Calvi, M, Camacho-Rozas, A J, Campion, R, Camporesi, T, Canale, V, Cankocak, K, Cao, F, Carena, F, Carrilho, P, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Chan, A, Charpentier, P, Chauveau, J, Checchia, P, Chelkov, G A, Chevalier, L, Chliapnikov, P V, Chorowicz, V, Chrin, J T M, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Couchot, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Daubie, Evelyne, Daum, A, Dauncey, P D, Davenport, Martyn, Davies, J, Da Silva, W, Defoix, C, Delpierre, P A, Demaria, N, De Angelis, A, De Boeck, H, de Boer, Wim, De Brabandere, S, De Clercq, C, De Fez Laso, M D M, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Dris, M, Dufour, Y, Dupont, F, Edsall, D M, Eek, L O, Ehret, R, Ekelöf, T J C, Ekspong, Gösta, Elliot-Peisert, A, Elsing, M, Engel, J P, Ershaidat, N, Espirito-Santo, M C, Falaleev, V P, Fassouliotis, D, Feindt, Michael, Ferrer, A, Filippas-Tassos, A, Firestone, A, Föth, H, Fokitis, E, Fontanelli, F, Forbes, K A J, Fousset, J L, Francon, S, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fürstenau, H, Fuster, J A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gerber, J P, Giacomelli, P, Gillespie, D, Gokieli, R, Golob, B, Golovatyuk, V M, Gómez-Cadenas, J J, Gopal, Gian P, Gorn, L, Górski, M, Gracco, Valerio, Grard, F, Graziani, E, Grosdidier, G, Grossetête, B, Gunnarsson, P, Guy, J, Haedinger, U, Hahn, F, Hahn, M, Hahn, S, Haider, S, Hajduk, Z, Hakansson, A, Hallgren, A, Hamacher, K, Hamel de Monchenault, G, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Hernando, J A, Herquet, P, Herr, H, Hessing, T L, Hietanen, I, Higgins, C O, Higón, E, Hilke, Hans Jürgen, Hill, T S, Hodgson, S D, Hofmokl, T, Holmgren, S O, Holt, P J, Holthuizen, D J, Honoré, P F, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Ioannou, P, Iversen, P S, Jackson, J N, Jacobsson, R, Jalocha, P, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jonker, M, Jönsson, L B, Juillot, P, Kalkanis, G, Kalmus, George Ernest, Kapusta, F, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Koch-Mehrin, A, Köhne, J H, Köne, B, Kokkinias, P, Koratzinos, M, Korytov, A V, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Królikowski, J, Kronkvist, I J, Kucewicz, W, Kulka, K, Kurvinen, K L, Lacasta, C, Lambropoulos, C, Lamsa, J, Lanceri, L, Langefeld, P, Lapin, V, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lévy, J M, Lieb, E H, Lindgren, J, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Lokajícek, M, Loken, J G, López-Fernandez, A, López-Aguera, M A, Los, M E, Loukas, D, Lozano-Bahilo, J, Lutz, P, Lyons, L, Maehlum, G, Maillard, J, Maio, A, Maltezos, A, Mandl, F, Marco, J, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martí, S, Martínez-Rivero, C, Martínez-Vidal, F, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Meroni, C, Meyer, W T, Michelotto, M, Mikulec, I, Mirabito, L, Mitaroff, Winfried A, Mitselmakher, G, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nikolaenko, V, Nilsen, P E S, Niss, P, Nomerotski, A, Obraztsov, V F, Olshevskii, A G, Orava, Risto, Ostankov, A P, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pain, R, Palka, H, Papadopoulou, T D, Pape, L, Parodi, F, Passeri, A, Pegoraro, M, Pennanen, J, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Piana, G, Pierre, F, Pimenta, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, M, Rídky, J, Rinaudo, G, Romero, A, Roncagliolo, I, Ronchese, P, Rönnqvist, C, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schael, S, Schneider, H, Schyns, M A E, Sciolla, G, Scuri, F, Segar, A M, Seitz, A, Sekulin, R L, Sessa, M I, Seufert, R, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Skjevling, G, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Squarcia, S, Stäck, H, Stanescu, C, Stapnes, Steinar, Stavropoulos, G D, Stichelbaut, F, Stocchi, A, Strauss, J, Straver, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Szymanski, P, Tabarelli de Fatis, T, Chikilev, O G, Theodosiou, G E, Thomé, Z D, Tilquin, A, Timmermans, J, Timofeev, V G, Tkatchev, L G, Todorov, T, Toet, D Z, Toker, O, Tomaradze, A G, Tomé, B, Torassa, E, Tortora, L, Treille, D, Trischuk, W, Tristram, G, Troncon, C, Tsirou, A L, Tsyganov, E N, Turala, Michal, Turluer, M L, Tuuva, T, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Überschär, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Valls Ferrer, J A, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van der Heijden, M, Van Doninck, W K, Van Eldik, J, Vaz, P, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vollmer, M, Voutilainen, M, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Wehr, A, Weierstall, M, Weilhammer, Peter, Wetherell, Alan M, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Wormser, G, Woschnagg, K, Zaitsev, A, Zalewska-Bak, A, Zanini, L, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zuberi, R, Zumerle, G, Zúñiga, J, Delphi (IHEF, IoP, FNWI), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)
Subjects: Nuclear and High Energy Physics, Particle physics, Electron–positron annihilation, LEP-SLC ENERGIES, Elementary particle, 01 natural sciences, 7. Clean energy, Partícules (Física nuclear), PHYSICS, Nuclear physics, BHABHA SCATTERING, Particle decay, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], RADIATIVE-CORRECTIONS, MASS CORRECTIONS, 010306 general physics, Detectors de radiació, DELPHI, Bhabha scattering, Physics, 010308 nuclear & particles physics, Z0 resonance, mass corrections, radiative corrections, Mathematics::History and Overview, High Energy Physics::Phenomenology, Electroweak interaction, Weinberg angle, Higgs boson, High Energy Physics::Experiment, Particle Physics - Experiment, Lepton
Abstract: During the LEP running periods in 1990 and 1991 DELPHI has accumulated approximately 450000 Z0 decays into hadrons and charged leptons. The increased event statistics coupled with improved analysis techniques and improved knowledge of the LEP beam energies permit significantly better measurements of the mass and width of the Z0 resonance. Model independent fits to the cross sections and leptonic forward-backward asymmetries yield the following Z0 parameters: the mass and total width M(Z) = 91.187 +/- 0.009 GeV, GAMMA(Z) = 2.486 +/- 0.012 GeV, the hadronic and leptonic partial widths GAMMA(had) = 1.725 +/- 0.012GeV, GAMMA(l) = 83.01 +/- 0.52 MeV, the invisible width GAMMA(inv) = 512 +/- 10 MeV, the ratio of hadronic to leptonic partial widths R(l) = 20.78 +/- 0.15, and the Born level hadronic peak cross section sigma0 = 40.90 +/- 0.28 nb. Using these results and the value of alpha(s) determined from DELPHI data, the number of light neutrino species is determined to be 3.08 +/- 0.05. The individual leptonic widths are found to be: GAMMA(e) = 82.93 +/- 0.70 MeV, GAMMA(mu) = 83.20 +/- 1.11 MeV and GAMMA(tau) = 82.89 +/- 1.31 MeV. Using the measured leptonic forward-backward asymmetries and assuming lepton universality, the squared vector and axial-vector couplings of the Z0 to charged leptons are found to be g(V)l2 = (1.47 +/- 0.51) x 10(-3) and g(A)l2 = 0.2483 +/- 0.0016. A full Standard Model fit to the data yields a value of the top mass m(t) = 115(-82)+52 (expt.)-24(+23) (Higgs) GeV, corresponding to a value of the weak mixing angle sin2 theta(eff)lept = 0.2339 +/- 0.0015(expt.)-0.0004(+0.0001) (Higgs). Values are obtained for the variables S and T, or epsilon1 and epsilon3 which parameterize electroweak loop effects.
Published: 1994
Full Text: View/download PDF

38. MEASUREMENT OF THE E+E- -] GAMMA-GAMMA(GAMMA) CROSS-SECTION AT LEP ENERGIES

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, Allport, P P, Almehed, S, D'Almeida, F, Alvsvaag, S J, Amaldi, Ugo, Andreazza, A, Antilogus, P, Apel, W D, Apsimon, R J, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbiellini, Guido, Bardin, Dimitri Yuri, Barker, G J, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Becks, K H, Begalli, M, Beillière, P, Beltran, P, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bjarne, J, Bloch, D, Blocki, J, Blyth, S, Bocci, V, Bogolubov, P N, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Bostjancic, B, Bosworth, S, Botner, O, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Braibant, S, Branchini, P, Brand, K D, Brenner, R A, Briand, H, Bricman, C, Brillault, L, Brown, R C A, Brunet, J M, Bugge, L, Buran, T, Buys, A, Buytaert, J, Caccia, M, Calvi, M, Camacho-Rozas, A J, Campion, R, Camporesi, T, Canale, V, Cankocak, K, Cao, F, Carena, F, Carrilho, P, Carroll, L, Cases, R, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Chan, A, Chapkin, M M, Charpentier, P, Chauveau, J, Checchia, P, Chelkov, G A, Chevalier, L, Chliapnikov, P V, Chorowicz, V, Chrin, J T M, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Couchot, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Daubie, Evelyne, Daum, A, Dauncey, P D, Davenport, Martyn, Davies, J, Da Silva, W, Defoix, C, Delpierre, P A, Demaria, N, De Angelis, A, De Boeck, H, de Boer, Wim, De Brabandere, S, De Clercq, C, De Fez Laso, M D M, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Dris, M, Dufour, Y, Dupont, F, Edsall, D M, Eek, L O, Ehret, R, Ekelöf, T J C, Ekspong, Gösta, Elliot-Peisert, A, Elsing, M, Engel, J P, Ershaidat, N, Espirito-Santo, M C, Falaleev, V P, Fassouliotis, D, Feindt, Michael, Ferrer, A, Filippas-Tassos, A, Firestone, A, Föth, H, Fokitis, E, Fontanelli, F, Forbes, K A J, Formenti, F, Fousset, J L, Francon, S, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fürstenau, H, Fuster, J A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gerber, J P, Giacomelli, P, Gillespie, D, Gokieli, R, Golob, B, Golovatyuk, V M, Gómez-Cadenas, J J, Gopal, Gian P, Gorn, L, Górski, M, Gracco, Valerio, Grard, F, Graziani, E, Grosdidier, G, Grossetête, B, Gunnarsson, P, Guy, J, Haedinger, U, Hahn, F, Hahn, M, Hahn, S, Haider, S, Hajduk, Z, Hakansson, A, Hallgren, A, Hamacher, K, Hamel de Monchenault, G, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Hernando, J A, Herquet, P, Herr, H, Hessing, T L, Higgins, C O, Higón, E, Hilke, Hans Jürgen, Hill, T S, Hodgson, S D, Holmgren, S O, Holt, P J, Holthuizen, D J, Honoré, P F, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Ioannou, P, Iversen, P S, Jackson, J N, Jacobsson, R, Jalocha, P, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jonker, M, Jönsson, L B, Juillot, P, Kaiser, M, Kalmus, George Ernest, Kapusta, F, Karlsson, M, Karvelas, E, Katargin, A, Katsanevas, S, Katsoufis, E C, Keränen, R, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Koch-Mehrin, A, Köhne, J H, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Korytov, A V, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Królikowski, J, Kronkvist, I J, Krupinski, W, Kulka, K, Kurvinen, K L, Lacasta, C, Lambropoulos, C, Lamsa, J, Lanceri, L, Langefeld, P, Lapin, V, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Lévy, J M, Lieb, E H, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Lokajícek, M, Loken, J G, López-Fernandez, A, López-Aguera, M A, Los, M E, Loukas, D, Lozano-Bahilo, J, Lutz, P, Lyons, L, Maehlum, G, Maillard, J, Maio, A, Maltezos, A, Mandl, F, Marco, J, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martí, S, Martínez-Rivero, C, Martínez-Vidal, F, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Meroni, C, Meyer, W T, Michelotto, M, Migliore, E, Mikulec, I, Mirabito, L, Mitselmakher, G, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nilsen, P E S, Niss, P, Nomerotski, A, Obraztsov, V F, Olshevskii, A G, Orava, Risto, Ostankov, A P, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pain, R, Palka, H, Papadopoulou, T D, Pape, L, Parodi, F, Passeri, A, Pegoraro, M, Pennanen, J, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Piana, G, Pierre, F, Pimenta, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Romero, A, Roncagliolo, I, Ronchese, P, Ronjin, V M, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schael, S, Schneider, H, Schyns, M A E, Sciolla, G, Scuri, F, Segar, A M, Seitz, A, Sekulin, R L, Sessa, M I, Seufert, R, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Skjevling, G, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Squarcia, S, Stäck, H, Stanescu, C, Stapnes, Steinar, Stavropoulos, G D, Stepaniak, K, Stichelbaut, F, Stocchi, A, Strauss, J, Straver, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Szymanski, P, Tabarelli de Fatis, T, Chikilev, O G, Theodosiou, G E, Thomé, Z D, Tilquin, A, Timmermans, J, Timofeev, V G, Tkatchev, L G, Todorov, T, Toet, D Z, Tomaradze, A G, Tomé, B, Torassa, E, Tortora, L, Treille, D, Trischuk, W, Tristram, G, Troncon, C, Tsirou, A L, Tsyganov, E N, Turala, Michal, Turluer, M L, Tuuva, T, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Überschär, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Valls Ferrer, J A, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van der Heijden, M, Van Doninck, W K, Van Eldik, J, Vaz, P, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vollmer, M, Voutilainen, M, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Wehr, A, Weierstall, M, Weilhammer, Peter, Wetherell, Alan M, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wormser, G, Woschnagg, K, Zaitsev, A, Zalewska-Bak, A, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zuberi, R, and Zumerle, G
Subjects: QED, DELPHI, gamma-gamma, Z0 decay, DECAYS, ANNIHILATION, Particle Physics - Experiment
Abstract: The total and the differential cross sections for the reaction e+e- → γγ(γ) have been measured with the DELPHI detector at LEP using an integrated luminosity of 36.9 pb-1. The results agree with the QED predictions and consequently there is no evidence for non-standard channels with the same experimental signature. The lower limits obtained on the QED cutoff parameters are Λ+ > 143 GeV and Λ- > 120 GeV, and the lower bound on the mass of an excited electron with an effective coupling constant λγ = 1 is 132 GeV/c2. Upper limits on the branching ratios for the decays Z0 → γγ, Z0 → π0γ, Z0 → ηγ and Z0 → γγγ have been determined to be 5.5 × 10-5, 5.5 × 10-5, 8.0 × 10-5, and 1.7 × 10-5 respectively. All the limits are at the 95% confidence level.
Published: 1994

39. A measurement of the <tex>B^{0}_{S}$</tex> meson mass

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Aleksan, Roy, Alekseev, G D, Allport, P P, Almehed, S, D'Almeida, F, Alvsvaag, S J, Amaldi, Ugo, Andreazza, A, Antilogus, P, Apel, W D, Apsimon, R J, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbiellini, Guido, Bardin, Dimitri Yuri, Barker, G J, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Beltran, P, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bjarne, J, Bloch, D, Blocki, J, Blyth, S, Bocci, V, Bogolubov, P N, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Bostjancic, B, Bosworth, S, Botner, O, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Braibant, S, Branchini, P, Brand, K D, Brenner, R A, Briand, H, Bricman, C, Brillault, L, Brown, R C A, Brückman, P, Brunet, J M, Budziak, A P, Bugge, L, Buran, T, Buys, A, Buytaert, J, Caccia, M, Calvi, M, Camacho-Rozas, A J, Campion, R, Camporesi, T, Canale, V, Cankocak, K, Cao, F, Carena, F, Carrilho, P, Carroll, L, Cases, R, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Chan, A, Chapkin, M M, Charpentier, P, Chauveau, J, Checchia, P, Chelkov, G A, Chevalier, L, Chliapnikov, P V, Chorowicz, V, Chrin, J T M, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Couchot, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Daubie, Evelyne, Daum, A, Dauncey, P D, Davenport, Martyn, Davies, J, Da Silva, W, Defoix, C, Delpierre, P A, Demaria, N, De Angelis, A, De Boeck, H, de Boer, Wim, De Brabandere, S, De Clercq, C, De Fez Laso, M D M, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Dris, M, Dufour, Y, Dupont, F, Edsall, D M, Eek, L O, Ehret, R, Ekelöf, T J C, Ekspong, Gösta, Elliot-Peisert, A, Elsing, M, Engel, J P, Ershaidat, N, Espirito-Santo, M C, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Ferrer, A, Filippas-Tassos, A, Firestone, A, Föth, H, Fokitis, E, Fontanelli, F, Forbes, K A J, Formenti, F, Fousset, J L, Francon, S, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fürstenau, H, Fuster, J A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gerber, J P, Giacomelli, P, Gillespie, D, Gokieli, R, Golob, B, Golovatyuk, V M, Gómez-Cadenas, J J, Gopal, Gian P, Gorn, L, Górski, M, Gracco, Valerio, Grard, F, Graziani, E, Grosdidier, G, Grossetête, B, Gunnarsson, P, Guy, J, Haedinger, U, Hahn, F, Hahn, M, Hahn, S, Haider, S, Hajduk, Z, Hakansson, A, Hallgren, A, Hamacher, K, Hamel de Monchenault, G, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Hernando, J A, Herquet, P, Herr, H, Hessing, T L, Higgins, C O, Higón, E, Hilke, Hans Jürgen, Hill, T S, Hodgson, S D, Hofmokl, T, Holmgren, S O, Holt, P J, Holthuizen, D J, Honoré, P F, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Ioannou, P, Iversen, P S, Jackson, J N, Jacobsson, R, Jalocha, P, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jonker, M, Jönsson, L B, Juillot, P, Kaiser, M, Kalkanis, G, Kalmus, George Ernest, Kapusta, F, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Koch-Mehrin, A, Köhne, J H, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Korytov, A V, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Królikowski, J, Kronkvist, I J, Krupinski, W, Kucewicz, W, Kulka, K, Kurvinen, K L, Lacasta, C, Lambropoulos, C, Lamsa, J, Lanceri, L, Langefeld, P, Lapin, V, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lévy, J M, Lieb, E H, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Lokajícek, M, Loken, J G, López-Fernandez, A, López-Aguera, M A, Los, M E, Loukas, D, Lozano-Bahilo, J, Lutz, P, Lyons, L, Maehlum, G, Maillard, J, Maio, A, Maltezos, A, Mandl, F, Marco, J, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martí, S, Martínez-Rivero, C, Martínez-Vidal, F, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Meroni, C, Meyer, W T, Michelotto, M, Migliore, E, Mikulec, I, Mirabito, L, Mitaroff, Winfried A, Mitselmakher, G, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nikolaenko, V, Nilsen, P E S, Niss, P, Nomerotski, A, Novák, M, Obraztsov, V F, Olshevskii, A G, Orava, Risto, Ostankov, A P, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pain, R, Palka, H, Papadopoulou, T D, Pape, L, Parodi, F, Passeri, A, Pegoraro, M, Pennanen, J, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Piana, G, Pierre, F, Pimenta, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, M, Rídky, J, Rinaudo, G, Romero, A, Roncagliolo, I, Ronchese, P, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Yu, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schael, S, Schneider, H, Schyns, M A E, Sciolla, G, Scuri, F, Segar, A M, Seitz, A, Sekulin, R L, Sessa, M I, Seufert, R, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Skjevling, G, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Squarcia, S, Stäck, H, Stanescu, C, Stapnes, Steinar, Stavropoulos, G D, Stichelbaut, F, Stocchi, A, Strauss, J, Straver, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Szymanski, P, Tabarelli de Fatis, T, Chikilev, O G, Theodosiou, G E, Thomé, Z D, Tilquin, A, Timmermans, J, Timofeev, V G, Tkatchev, L G, Todorov, T, Toet, D Z, Tomaradze, A G, Tomé, B, Torassa, E, Tortora, L, Treille, D, Trischuk, W, Tristram, G, Troncon, C, Tsirou, A L, Tsyganov, E N, Turluer, M L, Tuuva, T, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Überschär, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Valls Ferrer, J A, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van der Heijden, M, Van Doninck, W K, Van Eldik, J, Vaz, P, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vlasov, E, Vodopyanov, A S, Vollmer, M, Voutilainen, M, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Wehr, A, Weierstall, M, Weilhammer, Peter, Wetherell, Alan M, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Wormser, G, Woschnagg, K, Zaitsev, A, Zalewska-Bak, A, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zuberi, R, Zumerle, G, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Delphi, Collaboration, Abreu, P., Adam, W., and Canale, Vincenzo
Subjects: Nuclear and High Energy Physics, Particle physics, Meson, Electron–positron annihilation, QUARK EFFECTIVE THEORY, Nuclear Theory, Hadron, Combined use, Elementary particle, Tracking (particle physics), LEP collider, DECAYS, DELPHI, B0_s mass, exclusive hadronic final state, law.invention, Nuclear physics, law, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], B meson, Nuclear Experiment, Collider, BS, Physics, HADRONS, High Energy Physics::Phenomenology, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: Strange beauty meson Bs0 have been reconstructed through exclusive hadronic final states, using the data collected in 1992 by the DELPHI experiment at the LEP collider. The analysis relies on the combined use of accurate tracking and of the hadron identification capabilities of DELPHI. Three Bs0 decay candidates have been selected over a negligible background using theDs−π+, Ds−a1+ (1260) and View the MathML source decay modes, with identified kaons in the final state. The Bs0 meson mass is measured to be mBs = (5374± 16± 2) MeV/ c2.
Published: 1994
Full Text: View/download PDF

40. Search for the standard model Higgs boson in Z0 decays

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, Allport, P P, Almehed, S, D'Almeida, F, Alvsvaag, S J, Amaldi, Ugo, Andreazza, A, Antilogus, P, Apel, W D, Apsimon, R J, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbiellini, Guido, Bardin, Dimitri Yuri, Barker, G J, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Becks, K H, Begalli, M, Beillière, P, Beltran, P, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bjarne, J, Bloch, D, Blocki, J, Blyth, S, Bocci, V, Bogolubov, P N, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Bostjancic, B, Bosworth, S, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Braibant, S, Branchini, P, Brand, K D, Brenner, R A, Briand, H, Bricman, C, Brillault, L, Brown, R C A, Brunet, J M, Bugge, L, Buran, T, Buys, A, Buytaert, J, Caccia, M, Calvi, M, Camacho-Rozas, A J, Campion, R, Camporesi, T, Canale, V, Cankocak, K, Cao, F, Carena, F, Carrilho, P, Carroll, L, Cases, R, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Chan, A, Chapkin, M M, Charpentier, P, Chauveau, J, Checchia, P, Chelkov, G A, Chevalier, L, Chliapnikov, P V, Chorowicz, V, Chrin, J T M, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Couchot, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Daubie, Evelyne, Daum, A, Dauncey, P D, Davenport, Martyn, Davies, J, Da Silva, W, Defoix, C, Delpierre, P A, Demaria, N, De Angelis, A, De Boeck, H, de Boer, Wim, De Brabandere, S, De Clercq, C, De Fez Laso, M D M, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Dris, M, Dufour, Y, Dupont, F, Edsall, D M, Ehret, R, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Ershaidat, N, Espirito-Santo, M C, Fassouliotis, D, Feindt, Michael, Ferrer, A, Filippas-Tassos, A, Firestone, A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Fousset, J L, Francon, S, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fürstenau, H, Fuster, J A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Giacomelli, P, Gillespie, D, Gokieli, R, Golob, B, Golovatyuk, V M, Gómez-Cadenas, J J, Gopal, Gian P, Gorn, L, Górski, M, Gracco, Valerio, Grard, F, Graziani, E, Grosdidier, G, Grossetête, B, Gunnarsson, P, Guy, J, Haedinger, U, Hahn, F, Hahn, M, Hahn, S, Haider, S, Hajduk, Z, Hakansson, A, Hallgren, A, Hamacher, K, Hamel de Monchenault, G, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Hernando, J A, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Honoré, P F, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Ioannou, P, Iversen, P S, Jackson, J N, Jacobsson, R, Jalocha, P, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jonker, M, Jönsson, L B, Juillot, P, Kaiser, M, Kalmus, George Ernest, Kapusta, F, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Koch-Mehrin, A, Köhne, J H, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Korytov, A V, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Królikowski, J, Kronkvist, I J, Krupinski, W, Kulka, K, Kurvinen, K L, Lacasta, C, Lambropoulos, C, Lamsa, J, Lanceri, L, Langefeld, P, Lapin, V, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Lévy, J M, Lieb, E H, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Lokajícek, M, Loken, J G, López-Fernandez, A, López-Aguera, M A, Los, M E, Loukas, D, Lozano-Bahilo, J, Lutz, P, Lyons, L, Maehlum, G, Maillard, J, Maio, A, Maltezos, A, Mandl, F, Marco, J, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martí, S, Martínez-Rivero, C, Martínez-Vidal, F, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Meroni, C, Meyer, W T, Michelotto, M, Migliore, E, Mikulec, I, Mirabito, L, Mitaroff, Winfried A, Mitselmakher, G, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nikolaenko, V, Nilsen, P E S, Niss, P, Nomerotski, A, Normand, Ainsley, Obraztsov, V F, Olshevskii, A G, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pain, R, Palka, H, Papadopoulou, T D, Pape, L, Parodi, F, Passeri, A, Pegoraro, M, Pennanen, J, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schael, S, Schneider, H, Schyns, M A E, Sciolla, G, Scuri, F, Segar, A M, Seitz, A, Sekulin, R L, Sessa, M I, Seufert, R, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Skjevling, G, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Squarcia, S, Stäck, H, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stavropoulos, G D, Stepaniak, K, Stichelbaut, F, Stocchi, A, Straver, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Chikilev, O G, Theodosiou, G E, Thomé, Z D, Tilquin, A, Timmermans, J, Timofeev, V G, Tkatchev, L G, Todorov, T, Toet, D Z, Tomaradze, A G, Tomé, B, Torassa, E, Tortora, L, Treille, D, Trischuk, W, Tristram, G, Troncon, C, Tsirou, A L, Tsyganov, E N, Turula, M, Turluer, M L, Tuuva, T, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Überschär, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Valls Ferrer, J A, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van der Heijden, M, Van Doninck, W K, Van Eldik, J, Vaz, P, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vollmer, M, Voutilainen, M, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Wehr, A, Weierstall, M, Weilhammer, Peter, Wetherell, Alan M, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wormser, G, Woschnagg, K, Yip, K, Yushchenko, O P, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zuberi, R, Zumerle, G, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), and Delphi (IHEF, IoP, FNWI)
Subjects: COLLISIONS, Nuclear and High Energy Physics, Particle physics, Higgs boson, LOWEST ORDER CALCULATIONS, MONTE-CARLO SIMULATION, LEP, Electron–positron annihilation, Hadron, Elementary particle, 01 natural sciences, DELPHI, Z0 decay, Standard Model, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Physics, Muon, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Fermion, High Energy Physics::Experiment, Neutrino, Particle Physics - Experiment
Abstract: A search for the Standard Model Higgs boson was performed in the data sample of around 1 million hadronic Z0 decays recorded in 1991 and 1992 with the DELPHI detector at LEP. The Higgs boson was searched for through its production in association with either neutrinos, electrons or muons. Four low mass events remain after the selections in the charged leptonic channels, that are likely to be due to background, especially four fermion processes. These results restrict the mass of the Standard Model Higgs boson to be larger than 55.7 GeV/c2 at the 95% confidence level.
Published: 1994
Full Text: View/download PDF

41. DETERMINATION OF ALPHA-S FROM THE SCALING VIOLATION IN THE FRAGMENTATION FUNCTIONS IN E+E- ANNIHILATION

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Aleksan, Roy, Alekseev, G D, Algeri, A, Allen, P, Almehed, S, Alvsvaag, S J, Amaldi, Ugo, Andreazza, A, Antilogus, P, Apel, W D, Apsimon, R J, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbiellini, Guido, Bardin, Dimitri Yuri, Barker, G J, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Becks, K H, Beeston, C J, Begalli, M, Beillière, P, Belokopytov, Yu A, Beltran, P, Benedic, D, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bilenky, S M, Billoir, P, Bjarne, J, Bloch, D, Blyth, S, Bocci, V, Bogolubov, P N, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Börner, H, Bosio, C, Bostjancic, B, Bosworth, S, Botner, O, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Braibant, S, Branchini, P, Brand, K D, Brenner, R A, Briand, H, Bricman, C, Brown, R C A, Brümmer, N, Brunet, J M, Bugge, L, Buran, T, Burmeister, H, Buytaert, J, Caccia, M, Calvi, M, Camacho-Rozas, A J, Campion, R, Camporesi, T, Canale, V, Cao, F, Carena, F, Carroll, L, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Chan, A, Chapkin, M M, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G A, Chevalier, L, Chliapnikov, P V, Chorowicz, V, Chrin, J T M, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Couchot, F, Crawley, H B, Crennell, D J, Crosetti, G, Crozon, M, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, D'Almagne, B, Dam, M, Damgaard, G, Darbo, G, Daubie, Evelyne, Daum, A, Dauncey, P D, Davenport, Martyn, David, P, Davies, J, Da Silva, W, Defoix, C, Delpierre, P A, Demaria, N, De Angelis, A, De Boeck, H, de Boer, Wim, De Clercq, C, De Fez Laso, M D M, De Groot, N, La Vaissière, C de, De Lotto, B, De Min, A, Dijkstra, H, Di Ciaccio, Lucia, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Dris, M, Dufour, Y, Dupont, F, Edsall, D M, Eek, L O, Eerola, Paule Anna Mari, Ehret, R, Ekelöf, T J C, Ekspong, Gösta, Elliot-Peisert, A, Engel, J P, Ershaidat, N, Fassouliotis, D, Feindt, Michael, Fernández-Alonso, M, Ferrer, A, Filippas-Tassos, A, Firestone, A, Föth, H, Fokitis, E, Fontanelli, F, Forbes, K A J, Fousset, J L, Francon, S, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Furnival, K, Fürstenau, H, Fuster, J A, Gamba, D, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gerber, J P, Gerdyukov, L N, Giacomelli, P, Gokieli, R, Golob, B, Golovatyuk, V M, Gómez-Cadenas, J J, Gopal, Gian P, Górski, M, Gracco, Valerio, Grant, A, Grard, F, Graziani, E, Grosdidier, G, Gross, E, Grosse-Wiesmann, P, Grossetête, B, Guy, J, Haedinger, U, Hahn, F, Hahn, M, Haider, S, Hakansson, A, Hallgren, A, Hamacher, K, Hamel de Monchenault, G, Hao, W, Harris, F J, Hedberg, V, Henkes, T, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Hietanen, I, Higgins, C O, Higón, E, Hilke, Hans Jürgen, Hodgson, S D, Hofmokl, T, Holmes, R, Holmgren, S O, Holthuizen, D J, Honoré, P F, Hooper, J E, Houlden, M A, Hrubec, Josef, Huet, K, Hulth, P O, Hultqvist, K, Ioannou, P, Iversen, P S, Jackson, J N, Jalocha, P, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Johnson, D, Jonker, M, Jönsson, L B, Juillot, P, Kalkanis, G, Kalmus, George Ernest, Kapusta, F, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Kesteman, J, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Koch-Mehrin, A, Köhne, J H, Köne, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Korytov, A V, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Królikowski, J, Kronkvist, I J, Krüner-Marquis, U, Krupinski, W, Kulka, K, Kurvinen, K L, Kussmaul, T, Lacasta, C, Lambropoulos, C, Lamsa, J, Lanceri, L, Lapin, V, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Lévy, J M, Lieb, E H, Liko, D, Lindgren, J, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Lokajícek, M, Loken, J G, López-Fernandez, A, López-Aguera, M A, Los, M E, Loukas, D, Lozano-Bahilo, J, Lutz, P, Lyons, L, Maehlum, G, Maillard, J, Maio, A, Maltezos, A, Mandl, F, Marco, J, Margoni, M, Marin, J C, Markou, A, Maron, T, Martí, S, Mathis, L G, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Meola, G, Meroni, C, Meyer, W T, Michelotto, M, Mikulec, I, Mirabito, L, Mitaroff, Winfried A, Mitselmakher, G, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Murray, W J, Muryn, B, Myatt, Gerald, Navarria, Francesco Luigi, Negri, P, Nicolaidou, R, Nielsen, B S, Nijjhar, B, Nikolaenko, V, Nilsen, P E S, Niss, P, Nomerotski, A, Obraztsov, V F, Olshevskii, A G, Orava, Risto, Ostankov, A P, Österberg, K, Ouraou, A, Paganoni, M, Pain, R, Palka, H, Papadopoulou, T D, Pape, L, Parodi, F, Passeri, A, Pegoraro, M, Pennanen, J, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, L P, Pierre, F, Pimenta, M, Pingot, O, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Ratoff, P N, Read, A L, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, M, Rídky, J, Rinaudo, G, Roditi, I, Romero, A, Roncagliolo, I, Ronchese, P, Rönnqvist, C, Rosenberg, E I, Rossi, S, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schael, S, Schneider, H, Schyns, M A E, Sciolla, G, Scuri, F, Segar, A M, Seitz, A, Sekulin, R L, Sessa, M I, Sette, G, Seufert, R, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Skjevling, G, Smadja, G, Smirnova, O G, Smith, G R, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Squarcia, S, Stäck, H, Stanescu, C, Stapnes, Steinar, Stavropoulos, G D, Stichelbaut, F, Stocchi, A, Strauss, J, Straver, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Szymanski, P, Tabarelli de Fatis, T, Chikilev, O G, Theodosiou, G E, Tilquin, A, Timmermans, J, Timofeev, V G, Tkatchev, L G, Todorov, T, Toet, D Z, Toker, O, Tomé, B, Torassa, E, Tortora, L, Treille, D, Trevisan, U, Trischuk, W, Tristram, G, Troncon, C, Tsirou, A L, Tsyganov, E N, Turala, Michal, Turluer, M L, Tuuva, T, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Valls Ferrer, J A, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van der Heijden, M, Van Doninck, W K, Vaz, P, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vollmer, M, Voutilainen, M, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Wayne, M, Wehr, A, Weierstall, M, Weilhammer, Peter, Werner, J, Wetherell, Alan M, Wickens, J H, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wormser, G, Woschnagg, K, Yamdagni, N, Yepes, P, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zhang, G, Zimin, N I, Zito, M, Zuberi, R, Zukanovich-Funchal, R, Zumerle, G, Zúñiga, J, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: Quark, Nuclear and High Energy Physics, Particle physics, HADRONIC-Z-DECAYS, JET PRODUCTION-RATES, LUND MONTE-CARLO, LEADING ORDER, QUANTUM CHROMODYNAMICS, PERTURBATIVE QCD, PARTON DENSITIES, RESONANCE, SCATTERING, PHYSICS, High Energy Physics::Lattice, Electron–positron annihilation, Hadron, Elementary particle, 01 natural sciences, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Nuclear Experiment, Boson, Quantum chromodynamics, Physics, Coupling constant, Annihilation, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Física nuclear, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: A determination of the hadronic fragmentation functions of the Z0 boson is presented from a study of the inclusive hadron production with the DELPHI detector at LEP. These fragmentation functions were compared with the ones at lower energies, thus covering data in a large kinematic range: 196 less-than-or-equal-to Q2 less-than-or-equal-to 8312 GeV2 and x (= p(h)/E(beam)) > 0.08. A large scaling violation was observed, which was used to extract the strong coupling constant in second order QCD: alpha(s)(M(Z)) = 0.118 +/- 0.005. The corresponding QCD scale for five quark flavours is: LAMBDA(MS)(5)BAR = 230 +/- 60 MeV.
Published: 1993
Full Text: View/download PDF

42. A measurement of the mean lifetimes of charged and neutral B-hadrons

Author: Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., Alekseev, G. D., Algeri, A., Allen, P., Almehed, S., Alvsvaag, S. J., Amaldi, U., Andreazza, A., Antilogus, P., Apel, W. -D, Apsimon, R. J., Arnoud, Y., Åsman, B., Augustin, J. -E, Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barate, R., Barbiellini, G., Bardin, D. Y., Barker, G. J., Baroncelli, A., Barring, O., Barrio, J. A., Bartl, W., Bates, M. J., Battaglia, M., Baubillier, M., Becks, K. -H, Beeston, C. J., Begalli, M., Beillier, P., Belokopytov, Yu, Beltran, P., Benedic, D., Benvenuti, A. C., Berggren, M., Bertrand, D., Bianchi, F., Bilenky, M. S., Billoir, P., Bjarne, J., Bloch, D., Blyth, S., Bocci, V., Bogolubov, P. N., Bolognese, T., Bonesini, M., Bonivento, W., Booth, P. S. L., Borisov, G., Borner, H., Bosio, C., Bostjancic, B., Bosworth, S., Botner, O., Bouquet, B., Bourdarios, C., Bowcock, T. J. V., Bozzo, M., Braibant, S., Branchini, P., Brand, K. D., Brenner, R. A., Briand, H., Bricman, C., Brown, R. C. A., Brummer, N., Brunet, J. -M, Bugge, L., Buran, T., Burmeister, H., Buytaert, J. A. M. A., Caccia, M., Calvi, M., Camacho Rozas, A. J., Campion, R., Camporesi, T., Canale, V., Cao, F., Carena, F., Carroll, L., Caso, C., Castillo Gimenez, M. V., Cattai, A., Cavallo, F. R., Cerrito, L., Chabaud, V., Chan, A., Charpentier, Ph, Chaussard, L., Chauveau, J., Checchia, P., Chelkov, G. A., Chevalier, L., Chliapnikov, P., Chorowicz, V., Chrin, J. T. M., Collins, P., Contreras, J. L., Contri, R., Cortina, E., Cosme, G., Couchot, F., Crawley, H. B., Crennell, D., Crosetti, G., Crozon, M., Cuevas Maestro, J., Czellar, S., Dahl-Jensen, E., Dalmagne, B., Dam, M., Damgaard, G., Daubie, E., Daum, A., Dauncey, P. D., Davenport, M., David, P., Davies, J., Da Silva, W., Defoix, C., Delpierre, P., Demaria, N., Angelis, A., Boeck, H., Boer, W., Clercq, C., Fez Laso, M. D. M., Groot, N., La Vaissiere, C., Lotto, B., Min, A., Dijkstra, H., Di Ciaccio, L., Dolbeau, J., Donszelmann, M., Doroba, K., Dracos, M., Drees, J., Dris, M., Dufour, Y., Dupont, F., Edsall, D., Eek, L. -O, Eerola, P. A. -M, Ehret, R., Ekelof, T., Ekspong, G., Elliot Peisert, A., Engel, J. -P, Ershaidat, N., Falaleev, V., Fassouliotis, D., Feindt, M., Fernandez Alonso, M., Ferrer, A., Filippas, T. A., Firestone, A., Foeth, H., Fokitis, E., Fontanelli, F., Forbes, K. A. J., Fousset, J. -L, Francon, S., Franek, B., Frenkiel, P., Fries, D. C., Frodesen, A. G., Fruhwirth, R., Fulda-Quenzer, F., Furnival, K., Furstenau, H., Fuster, J., Gamba, D., Garcia, C., Garcia, J., Gaspar, C., Gasparini, U., Gavillet, Ph, Gazis, E. N., Gerber, J. -P, Giacomelli, P., Gokieli, R., Golob, B., Golovatyuk, V. M., Gomez Y Cadenas, J. J., Gopal, G., Gorn, L., Gorski, M., Gracco, V., Grant, A., Grard, F., Graziani, E., Grosdidier, G., Gross, E., Grosse-Wiesmann, P., Grossetete, B., Guy, J., Haedinger, U., Hahn, F., Hahn, M., Haider, S., Hakansson, A., Hallgren, A., Hamacher, K., Hamel Monchenault, G., Hao, W., Harris, F. J., Hedberg, V., Henkes, T., Hernandez, J. J., Herquet, P., Herr, H., Hessing, T. L., Hietanen, I., Higgins, C. O., Higon, E., Hilke, H. J., Hodgson, S. D., Hofmokl, T., Holmgren, S. -O, Holthuizen, D., Honore, P. F., Hooper, J. E., Houlden, M., Hrubec, J., Huet, K., Hulth, P. O., Hultqvist, K., Ioannou, P., Iversen, P. -S, Jackson, J. N., Jalocha, P., Jarlskog, G., Jarry, P., Jean-Marie, B., Johansson, E. K., Johnson, D., Jonker, M., Jonsson, L., Juillot, P., Kalkanis, G., Kalmus, G., Kapusta, F., Karlsson, M., Karvelas, E., Katsanevas, S., Katsoufis, E. C., Keranen, R., Kesteman, J., Khomenko, B. A., Khovanski, N. N., King, B., Kjaer, N. J., Klein, H., Klovning, A., Kluit, P., Koch-Mehrin, A., Koehne, J. H., Koene, B., Kokkinias, P., Koratzinos, M., Korytov, A. V., Kostioukhine, V., Kourkoumelis, C., Kouznetsov, O., Kramer, P. H., Kreuter, C., Krolikowski, J., Kronkvist, I., Kruener-Marquis, U., Krupinski, W., Kulka, K., Kurvinen, K., Lacasta, C., Lambropoulos, C., Lamsa, J. W., Lanceri, L., Lapin, V., Laugier, J. -P, Lauhakangas, R., Leder, G., Ledroit, F., Leitner, R., Lemoigne, Y., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Levy, J. M., Lieb, E., Liko, D., Lindgren, J., Lindner, R., Lipniack, A., Lippi, I., Loerstad, B., Lokajicek, M., Loken, J. G., Lopez-Fernandez, A., Lopez Aguera, M. A., Los, M., Loukas, D., Lozano, J. J., Lutz, P., Lyons, L., Maehlum, G., Maillard, J., Maio, A., Maltezos, A., Mandl, F., Marco, J., Margoni, M., Marin, J. -C, Markou, A., Maron, T., Marti, S., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, M., Mc Cubbin, M., Mc Kay, R., Mc Nulty, R., Meola, G., Meroni, C., Meyer, W. T., Michelotto, M., Mikulec, I., Mirabito, L., Mitaroff, W. A., Mitselmakher, G. V., Mjoernmark, U., Moa, T., Moeller, R., Moenig, K., Monge, M. R., Morettini, P., Mueller, H., Murray, W. J., Muryn, B., Myatt, G., Navarria, F. L., Negri, P., Nicolaidou, R., Nielsen, B. S., Nijjhar, B., Nikolaenko, V., Nilsen, P. E. S., Niss, P., Nomerotski, A., Obraztsov, V., Olshevski, A. G., Orava, R., Ostankov, A., Osterberg, K., Ouraou, A., Paganoni, M., Pain, R., Palka, H., Papadopoulou, Th D., Pape, L., Parodi, F., Passeri, A., Pegoraro, M., Pennanen, J., Peralta, L., Pernegger, H., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Pierre, F., Pimenta, M., Pingot, O., Plaszczynski, S., Podobrin, O., Pol, M. E., Polok, G., Poropat, P., Pozdniakov, V., Privitera, P., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Ratoff, P. N., Read, A. L., Rebecchi, P., Redaelli, N. G., Regler, M., Reid, D., Renton, P. B., Resvanis, L. K., Richard, F., Richardson, M., Ridky, J., Rinaudo, G., Roditi, I., Romero, A., Roncagliolo, I., Ronchese, P., Ronnqvist, C., Rosenberg, E. I., Rossi, S., Rosso, E., Roudeau, P., Rovelli, T., Ruckstuhl, W., Ruhlmann-Kleider, V., Ruiz, A., Rybicki, K., Saarikko, H., Sacqui, Y., Sajot, G., Salt, J., Sanchez, J., Sannino, M., Schael, S., Schneider, H., Schyns, M. A. E., Sciolla, G., Scuri, F., Segar, A. M., Seitz, A., Sekulin, R., Sessa, M., Seufert, R., Shellard, R. C., Siccama, I., Siegrist, P., Simonetti, S., Simonetto, F., Sisakian, A. N., Skjevling, G., Smadja, G., Smirnov, N., Smirnova, O., Smith, G. R., Sosnowski, R., Souza-Santos, D., Spassoff, T. S., Spiriti, E., Squarcia, S., Staeck, H., Stanescu, C., Stapnes, S., Stavropoulos, G., Stichelbaut, F., Stocchi, A., Strauss, J., Straver, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Szymanski, P., Tabarelli, T., Tchikilev, O., Theodosiou, G. E., Tilquin, A., Timmermans, J., Timofeev, V. G., Tkatchev, L. G., Todorov, T., Toet, D. Z., Toker, O., Bernardo Tomé, Torassa, E., Tortora, L., Treille, D., Trischuk, W., Tristram, G., Troncon, C., Tsirou, A., Tsyganov, E. N., Turala, M., Turluer, M. -L, Tuuva, T., Tyapkin, I. A., Tyndel, M., Tzamarias, S., Ueberschaer, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Valls Ferrer, J. A., Vander Velde, C., Apeldoorn, G. W., Dam, P., Heijden, M., Doninck, W. K., Vaz, P., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verlato, M., Vertogradov, L. S., Vilanova, D., Vincent, P., Vitale, L., Vlasov, E., Vodopyanov, A. S., Vollmer, M., Voutilainen, M., Vrba, V., Wahlen, H., Walck, C., Waldner, F., Wehr, A., Weierstall, M., Weilhammer, P., Werner, J., Wetherell, A. M., Wickens, J. H., Wilkinson, G. R., Williams, W. S. C., Winter, M., Witek, M., Wormser, G., Woschnagg, K., Yamdagni, N., Yepes, P., Zaitsev, A., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zhang, G., Zimin, N. I., Zito, M., Zuberi, R., Zukanovich Funchal, R., Zumerle, G., Zuniga, J., Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Delphi, Collaboration, Abreu, P., Adam, W., and Canale, Vincenzo
Subjects: Nuclear and High Energy Physics, Particle physics, LUND MONTE-CARLO, Electron–positron annihilation, Hadron, Elementary particle, 01 natural sciences, JET FRAGMENTATION, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Nuclear Experiment, 010306 general physics, Neutral particle, Astrophysics::Galaxy Astrophysics, E+E-PHYSICS, Physics, 010308 nuclear & particles physics, Charge density, Charge (physics), Charged particle, Mass spectrum, Física nuclear, High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Particle Physics - Experiment
Abstract: The decays of B-hadrons have been reconstructed using the charged particles recorded in the DELPHI silicon microstrip detector. The sum of the charges of the secondaries determines the charge of the B-hadron parent. Some 232 114 multihadronic Z0 decays recorded during the 1991 run of LEP at centre-of-mass energies between 88.2 GeV and 94.2 GeV yield 253 B-hadron candidates with well-measured charge. From these the mean lifetimes of neutral and charged B-hadrons are found to be 1.44 +/- 0.21(stat.) +/- 0.14(syst.) ps and 1.56 +/- 0.19(stat.) +/- 0.13(syst.) ps respectively. The ratio of their lifetimes is 1.09(-0.23)+0.28 (Stat.) +/- 0.11 (syst.). Under some assumptions on the abundance and lifetime of the LAMBDA(b)0 and B(s)0 states, the B0 and B+ lifetimes are inferred.
Published: 1993
Full Text: View/download PDF

43. Limits on the production of scalar leptoquarks from $Z^0$ decays at LEP

Author: Abreu, P., Adam, W., Adye, T., Agasi, E., Aleksan, R., Alekseev, G. D., Algeri, A., Allen, P., Almehed, S., Alvsvaag, S. J., Amaldi, U., Andreazza, A., Antilogus, P., Apel, W. D., Apsimon, R. J., Arnoud, Y., Asman, B., Augustin, J. E., Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barate, R., Barbiellini, G., Bardin, D. Y., Barker, G. J., Baroncelli, A., Barring, O., Barrio, J. A., Bartl, W., Bates, M. J., Battaglia, M., Baubillier, M., Becks, K. H., Begalli, M., Beilliere, P., Belokopytov, Y., Beltran, P., Benedic, D., Benvenuti, A. C., Berggren, M., Bertrand, D., Bianchi, F., Bilenky, M. S., Billoir, P., Bjarne, J., Bloch, D., Blocki, J., Blyth, S., Bocci, V., Bogolubov, P. N., Bolognese, T., Bonesini, M., Bonivento, W., P. S. L., Borisov, G., Borner, H., Bosio, C., Bostjancic, B., Bosworth, S., Botner, O., Bouquet, B., Bourdarios, C., T. J. V., Bozzo, M., Braibant, S., Branchini, P., Brand, K. D., Brenner, R. A., Briand, H., Bricman, C., Brillault, L., R. C. A., Bruckman, P., Brunet, J. M., Budziak, A., Bugge, L., Buran, T., Burmeister, H., J. A. M., Caccia, M., Calvi, M., A. J. C., Campion, R., Camporesi, T., Canale, V., Cao, F., Carena, F., Carroll, L., M. V. C., Cattai, A., Cavallo, F. R., Cerrito, L., Chabaud, V., Chan, A., Chapkin, M., Charpentier, P., Chaussard, L., Chauveau, J., Checchia, P., Chelkov, G. A., Chevalier, L., Chliapnikov, P., Chorowicz, V., J. T. M., Cindro, V., Collins, P., Contreras, J. L., Contri, R., Cortina, E., Cosme, G., Couchot, F., Crawley, H. B., Crennell, D., Crosetti, G., Crozon, M., Maestro, J. C., Czellar, S., Dahljensen, E., Dalmagne, B., Dam, M., Damgaard, G., Darbo, G., Daubie, E., Daum, A., Dauncey, P. D., Davenport, M., Davies, J., Dasilva, W., Defoix, C., Delpierre, P., Demaria, N., Deangelis, A., Deboeck, H., Deboer, W., Debrabandere, S., Declercq, C., M. D. M., Delavaissiere, C., Delotto, B., Demin, A., Dijkstra, H., Diciaccio, L., Dolbeau, J., Donszelmann, M., Doroba, K., Dracos, M., Drees, J., Dris, M., Dufour, Y., Dupont, F., Edsall, D., Eek, L. O., P. A. M., Ehret, R., Ekelof, T., Ekspong, G., Peisert, A. E., Elsing, M., Engel, J. P., Ershaidat, N., Fassouliotis, D., Feindt, M., Ferrer, A., Filippas, T. A., Firestone, A., Foeth, H., Fokitis, E., Fontanelli, F., K. A. J., Fousset, J. L., Francon, S., Franek, B., Frenkiel, P., Fries, D. C., Frodesen, A. G., Fruhwirth, R., Fuldaquenzer, F., Furstenau, H., Fuster, J., Gamba, D., Garcia, C., Garcia, J., Gaspar, C., Gasparini, Ugo, Gavillet, P., Gazis, E. N., Gerber, J. P., Giacomelli, P., Gillespie, D., Gokieli, R., Golob, B., Golovatyuk, V. M., J. J. G., Gopal, G., Gorn, L., Gorski, M., Gracco, V., Grant, A., Grard, F., Graziani, E., Grosdidier, G., Gross, E., Grossetete, B., Guy, J., Haedinger, U., Hahn, F., Hahn, M., Haider, S., Hakansson, A., Hallgren, A., Hamacher, K., Demonchenault, G. H., Hao, W., Harris, F. J., Hedberg, V., Henkes, T., Hernandez, J. J., Herquet, P., Herr, H., Hessing, T. L., Hietanen, I., Higgins, C. O., Higon, E., Hilke, H. J., Hodgson, S. D., Hofmokl, T., Holmgren, S. O., Holt, P. J., Holthuizen, D., Honore, P. F., Houlden, M., Hrubec, J., Huet, K., Hulth, P. O., Hultqvist, K., Ioannou, P., Iversen, P. S., Jackson, J. N., Jalocha, P., Jarlskog, G., Jarry, P., Jeanmarie, B., Johansson, E. K., Jonker, M., Jonsson, L., Juillot, P., Kalkanis, G., Kalmus, G., Kapusta, F., Karlsson, M., Karvelas, E., Katsanevas, S., Katsoufis, E. C., Keranen, R., Khomenko, B. A., Khovanski, N. N., King, B., Kjaer, N. J., Klein, H., Klovning, A., Kluit, P., Kochmehrin, A., Koehne, J. H., Koene, B., Kokkinias, P., Koratzinos, M., Korytov, A. V., Kostioukhine, V., Kourkoumelis, C., Kouznetsov, O., Kramer, P. H., Krammer, M., Kreuter, C., Krolikowski, J., Kronkvist, I., Kruenermarquis, U., Krupinski, W., Kulka, K., Kurvinen, K., Lacasta, C., Lambropoulos, C., Lamsa, J. W., Lanceri, L., Lapin, V., Last, I., Laugier, J. P., Lauhakangas, R., Leder, G., Ledroit, F., Leitner, R., Lemoigne, Y., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Levy, J. M., Lieb, E., Liko, D., Lindgren, J., Lindner, R., Lippi, I., Loerstad, B., Lokajicek, M., Loken, J. G., Lopezfernandez, A., M. A. L., Los, M., Loukas, D., Lozano, J. J., Lutz, P., Lyons, L., Maehlum, G., Maillard, J., Maio, A., Maltezos, A., Mandl, F., Marco, J., Margoni, Martino, Marin, J. C., Markou, A., Maron, T., Marti, S., Martinezrivero, C., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, M., Mccubbin, M., Mckay, R., Mcnulty, R., Medbo, J., Meola, G., Meroni, C., Meyer, W. T., Michelotto, M., Mikulec, I., Mirabito, L., Mitaroff, W. A., Mitselmakher, G. V., Mjoernmark, U., Moa, T., Moeller, R., Moenig, K., Monge, M. R., Morettini, P., Mueller, H., Murray, W. J., Muryn, B., Myatt, G., Navarria, F. L., Negri, P., Nemecek, S., Nicolaidou, R., Nielsen, B. S., Nijjhar, B., Nikolaenko, V., P. E. S., Niss, P., Nomerotski, A., Obraztsov, V., Olshevski, A. G., Orava, R., Ostankov, A., Osterberg, K., Ouraou, A., Paganoni, M., Pain, R., Palka, H., Papadopoulou, T. D., Pape, L., Parodi, F., Passeri, A., Pegoraro, M., Pennanen, J., Peralta, L., Pernegger, H., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Petrovykh, L., Piana, G., Pierre, F., Pimenta, M., Plaszczynski, S., Podobrin, O., Pol, M. E., Polok, G., Poropat, P., Pozdniakov, V., Privitera, P., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rames, J., Ratoff, P. N., Read, A. L., Rebecchi, P., Redaelli, N. G., Regler, M., Reid, D., Renton, P. B., Resvanis, L. K., Richard, F., Richardson, J., Ridky, J., Rinaudo, G., Roditi, I., Romero, A., Roncagliolo, I., Ronchese, Paolo, Ronnqvist, C., Rosenberg, E. I., Rosso, E., Roudeau, P., Rovelli, T., Ruckstuhl, W., Ruhlmannkleider, V., Ruiz, A., Rybicki, K., Saarikko, H., Sacquin, Y., Sajot, G., Salt, J., Sanchez, J., Sannino, M., Schael, S., Schneider, H., M. A. E., Sciolla, G., Scuri, F., Segar, A. M., Seitz, A., Sekulin, R., Sessa, M., Seufert, R., Shellard, R. C., Siccama, I., Siegrist, P., Simonetti, S., Simonetto, Franco, Sisakian, A. N., Skjevling, G., Smadja, G., Smirnov, N., Smirnova, O., Smith, G. R., Sosnowski, R., Souzasantos, D., Spassoff, T. S., Spiriti, E., Squarcia, S., Staeck, H., Stanescu, C., Stapnes, S., Stavropoulos, G., Stichelbaut, F., Stocchi, A., Strauss, J., Straver, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Szymanski, P., Tabarelli, T., Tchikilev, O., Theodosiou, G. E., Tilquin, A., Timmermans, J., Timofeev, V. G., Tkatchev, L. G., Todorov, T., Toet, D. Z., Toker, O., Tomaradze, A., Tome, B., Torassa, E., Tortora, L., Treille, D., Trischuk, W., Tristram, G., Troncon, C., Tsirou, A., Tsyganov, E. N., Turala, M., Turluer, M. L., Tuuva, T., Tyapkin, I. A., Tyndel, M., Tzamarias, S., Ueberschaer, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., J. A. V., Vandervelde, C., Vanapeldoorn, G. W., Vandam, P., Vanderheijden, M., Vandoninck, W. K., Vaneldik, J., Vaz, P., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verlato, M., Vertogradov, L. S., Vilanova, D., Vincent, P., Vitale, L., Vlasov, E., Vodopyanov, A. S., Vollmer, M., Voutilainen, M., Vrba, V., Wahlen, H., Walck, C., Waldner, F., Wehr, A., Weierstall, M., Weilhammer, P., Wetherell, A. M., Wickens, J. H., Wilkinson, G. R., W. S. C., Winter, M., Witek, M., Wormser, G., Woschnagg, K., Yamdagni, N., Yepes, P., Zaitsev, A., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N. I., Zito, M., Zontar, D., Zuberi, R., Funchal, R. Z., Zumerle, Gianni, Zuniga, J., Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), DELPHI, Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: Nuclear and High Energy Physics, Particle physics, LUND MONTE-CARLO, Electron–positron annihilation, Scalar (mathematics), Elementary particle, 01 natural sciences, JET FRAGMENTATION, Nuclear physics, PHYSICS, SEARCH, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], PARTICLES, Leptoquark, E+E COLLIDERS, Limit (mathematics), SIGNATURES, 010306 general physics, Physics, 010308 nuclear & particles physics, Branching fraction, High Energy Physics::Phenomenology, Yukawa potential, Pair production, High Energy Physics::Experiment, Física nuclear, Particle Physics - Experiment
Abstract: A search has been made for pairs and for single production of scalar leptoquarks of the first and second generations using a data sample of 392000 Z0 decays from the DELPHI detector at LEP 1. No signal was found and limits on the leptoquark mass, production cross section and branching ratio were set. A mass limit at 95% confidence level of 45.5 GeV/c2 was obtained for leptoquark pair production. The search for the production of a single leptoquark probed the mass region above this limit and its results exclude first and second generation leptoquarks D0 with masses below 65 GeV/c2 and 73 GeV/c2 respectively, at 95% confidence level, assuming that the D0lq Yukawa coupling alpha(lambda) is equal to the electromagnetic one. An upper limit is also given on the coupling alpha(lambda) as a function of the leptoquark mass m(D0).
Published: 1993
Full Text: View/download PDF

44. DETERMINATION OF ALPHA(S) FOR B-QUARKS AT THE Z(0) RESONANCE

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Aleksan, Roy, Alekseev, G D, Algeri, A, Allen, P, Almehed, S, Alvsvaag, S J, Amaldi, Ugo, Andreazza, A, Antilogus, P, Apel, W D, Apsimon, R J, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbiellini, Guido, Bardin, Dimitri Yuri, Barker, G J, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Becks, K H, Beeston, C J, Begalli, M, Beillière, P, Belokopytov, Yu A, Beltran, P, Benedic, D, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bilenky, S M, Billoir, P, Bjarne, J, Bloch, D, Blyth, S, Bocci, V, Bogolubov, P N, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Börner, H, Bosio, C, Bostjancic, B, Bosworth, S, Botner, O, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Braibant, S, Branchini, P, Brand, K D, Brenner, R A, Briand, H, Bricman, C, Brown, R C A, Brümmer, N, Brunet, J M, Bugge, L, Buran, T, Burmeister, H, Buytaert, J, Caccia, M, Calvi, M, Camacho-Rozas, A J, Campion, R, Camporesi, T, Canale, V, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Chan, A, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G A, Chevalier, L, Chliapnikov, P V, Chorowicz, V, Chrin, J T M, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Couchot, F, Crawley, H B, Crennell, D J, Crosetti, G, Crozon, M, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, D'Almagne, B, Dam, M, Damgaard, G, Daubie, Evelyne, Daum, A, Dauncey, P D, Davenport, Martyn, David, P, Davies, J, Da Silva, W, Defoix, C, Delpierre, P A, Demaria, N, De Angelis, A, De Boeck, H, de Boer, Wim, De Clercq, C, De Fez Laso, M D M, De Groot, N, La Vaissière, C de, De Lotto, B, De Min, A, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Dris, M, Dufour, Y, Dupont, F, Edsall, D M, Eek, L O, Eerola, Paule Anna Mari, Ehret, R, Ekelöf, T J C, Ekspong, Gösta, Elliot-Peisert, A, Engel, J P, Ershaidat, N, Fassouliotis, D, Feindt, Michael, Fernández-Alonso, M, Ferrer, A, Filippas-Tassos, A, Firestone, A, Föth, H, Fokitis, E, Fontanelli, F, Forbes, K A J, Fousset, J L, Francon, S, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Furnival, K, Fürstenau, H, Fuster, J A, Gamba, D, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gerber, J P, Giacomelli, P, Gokieli, R, Golob, B, Golovatyuk, V M, Gómez-Cadenas, J J, Gopal, Gian P, Górski, M, Gracco, Valerio, Grant, A, Grard, F, Graziani, E, Grosdidier, G, Gross, E, Grosse-Wiesmann, P, Grossetête, B, Gumenyuk, S A, Guy, J, Haedinger, U, Hahn, F, Hahn, M, Haider, S, Hakansson, A, Hallgren, A, Hamacher, K, Hamel de Monchenault, G, Hao, W, Harris, F J, Hedberg, V, Henkes, T, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Hietanen, I, Higgins, C O, Higón, E, Hilke, Hans Jürgen, Hodgson, S D, Hofmokl, T, Holmes, R, Holmgren, S O, Holthuizen, D J, Honoré, P F, Hooper, J E, Houlden, M A, Hrubec, Josef, Huet, K, Hulth, P O, Hultqvist, K, Ioannou, P, Iversen, P S, Jackson, J N, Jalocha, P, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Johnson, D, Jonker, M, Jönsson, L B, Juillot, P, Kalkanis, G, Kalmus, George Ernest, Kapusta, F, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Kesteman, J, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Koch-Mehrin, A, Köhne, J H, Köne, B, Kokkinias, P, Koratzinos, M, Korytov, A V, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Królikowski, J, Kronkvist, I J, Krüner-Marquis, U, Krupinski, W, Kulka, K, Kurvinen, K L, Lacasta, C, Lambropoulos, C, Lamsa, J, Lanceri, L, Lapin, V, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Lévy, J M, Lieb, E H, Liko, D, Lindgren, J, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Lokajícek, M, Loken, J G, López-Fernandez, A, López-Aguera, M A, Los, M E, Loukas, D, Lozano-Bahilo, J, Lutz, P, Lyons, L, Maehlum, G, Maillard, J, Maio, A, Maltezos, A, Mandl, F, Marco, J, Margoni, M, Marin, J C, Markou, A, Maron, T, Martí, S, Mathis, L G, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Meola, G, Meroni, C, Meyer, W T, Michelotto, M, Mikulec, I, Mirabito, L, Mitaroff, Winfried A, Mitselmakher, G, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Murray, W J, Muryn, B, Myatt, Gerald, Navarria, Francesco Luigi, Negri, P, Nicolaidou, R, Nielsen, B S, Nijjhar, B, Nikolaenko, V, Nilsen, P E S, Niss, P, Nomerotski, A, Obraztsov, V F, Olshevskii, A G, Orava, Risto, Ostankov, A P, Österberg, K, Ouraou, A, Paganoni, M, Pain, R, Palka, H, Papadopoulou, T D, Pape, L, Parodi, F, Passeri, A, Pegoraro, M, Pennanen, J, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, O, Pierre, F, Pimenta, M, Pingot, O, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Ratoff, P N, Read, A L, Rebecchi, P, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, M, Rídky, J, Rinaudo, G, Roditi, I, Romero, A, Roncagliolo, I, Ronchese, P, Rönnqvist, C, Rosenberg, E I, Rossi, S, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schael, S, Schneider, H, Schulze, B, Schyns, M A E, Sciolla, G, Scuri, F, Segar, A M, Seitz, A, Sekulin, R L, Sessa, M I, Sette, G, Seufert, R, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Skjevling, G, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Squarcia, S, Stäck, H, Stanescu, C, Stapnes, Steinar, Stavropoulos, G D, Stichelbaut, F, Stocchi, A, Strauss, J, Straver, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Szymanski, P, Tabarelli de Fatis, T, Chikilev, O G, Theodosiou, G E, Tilquin, A, Timmermans, J, Timofeev, V G, Tkatchev, L G, Todorov, T, Toet, D Z, Toker, O, Tomé, B, Torassa, E, Tortora, L, Treille, D, Trevisan, U, Trischuk, W, Tristram, G, Troncon, C, Tsirou, A L, Tsyganov, E N, Turala, Michal, Turluer, M L, Tuuva, T, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Valls Ferrer, J A, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van der Heijden, M, Van Doninck, W K, Vaz, P, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vollmer, M, Voutilainen, M, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Wayne, M, Wehr, A, Weierstall, M, Weilhammer, Peter, Werner, J, Wetherell, Alan M, Wickens, J H, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wormser, G, Woschnagg, K, Yamdagni, N, Yepes, P, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zhang, G, Zimin, N I, Zito, M, Zuberi, R, Zukanovich-Funchal, R, Zumerle, G, Zúñiga, J, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Delphi, Collaboration, Abreu, P., Adam, W., and Canale, Vincenzo
Subjects: Quark, CHARMED MESONS, Nuclear and High Energy Physics, Particle physics, HEAVY FLAVOR PRODUCTION, Electron–positron annihilation, High Energy Physics::Lattice, FRAGMENTATION FUNCTIONS, Flavour, Hadron, 01 natural sciences, Bottom quark, Nuclear physics, MONTE-CARLO, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Nuclear Experiment, Z DECAYS, Physics, Coupling constant, Quantum chromodynamics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, JET PRODUCTION-RATES, QCD, STRING MODEL, High Energy Physics::Experiment, Física nuclear, E+ E ANNIHILATION, Z0 RESONANCE, Particle Physics - Experiment, Lepton
Abstract: The strong coupling constant for b quarks has been determined, and its flavour independence, as predicted by QCD, investigated. The analysis involved events with lepton candidates selected from approximately 356 000 hadronic decays of the Z0, collected by the DELPHI detector at LEP in 1990 and 199 1. A method based on a direct comparison of the three-jet fraction in a b enriched sample, selected by requiring leptons with large momenta and transverse momenta, to that of the entire hadronic sample, illustrated the significant effect of the b quark mass on the multi-jet cross section, and verified the flavour independence of the strong coupling constant to an accuracy of +/- 6%. A second procedure based on a fit to the momentum and transverse momentum spectra of the lepton candidates in both two-jet and three (or more)-jet event samples simultaneously determined the b content in each, and, using second order QCD calculations, gave an absolute measurement of alpha(s) for b quarks of 0. 1 18 +/- 0.004 (stat.) +/- 0.003 (syst.) +/- 0.008 (scale). A comparison with a, for all quark flavours, as measured from the three-jet fraction in all hadronic events, further allowed the coupling strength for b quarks to be expressed in terms relative to that for udsc quarks, thereby cancelling certain common systematic uncertainties, and yielded alpha(s)b/alpha(s)udsc = 1.00 +/- 0.04 (stat.) +/- 0.03 (syst.).
Published: 1993
Full Text: View/download PDF

45. A study of B$^{0}$-$\overline{B}^{0}$ mixing using semileptonic decays of B hadrons produced from Z0

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Alekseev, G D, Algeri, A, Allen, P, Almehed, S, Alvsvaag, S J, Amaldi, Ugo, Anassontzis, E G, Andreazza, A, Antilogus, P, Apel, W D, Apsimon, R J, Arnoud, Y, Åsman, B, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbiellini, Guido, Bardin, Dimitri Yuri, Barker, G, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Becks, K H, Beeston, C J, Begalli, M, Beillière, P, Belokopytov, Yu A, Beltran, P, Benedic, D, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bilenky, S M, Billoir, P, Bjarne, J, Bloch, D, Blyth, S, Bocci, V, Bogolubov, P N, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Börner, H, Bosio, C, Bostjancic, B, Bosworth, S, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Braibant, S, Branchini, P, Brand, K D, Brenner, R A, Briand, H, Bricman, C, Brown, R C A, Brümmer, N, Brunet, J M, Bugge, L, Buran, T, Burmeister, H, Buytaert, J, Caccia, M, Calvi, M, Camacho-Rozas, A J, Campion, R, Camporesi, T, Canale, V, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Chan, A, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G A, Chevalier, L, Chliapnikov, P V, Chorowicz, V, Chrin, J T M, Clara, M P, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Couchot, F, Crawley, H B, Crennell, D J, Crosetti, G, Crozon, M, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, D'Almagne, B, Dam, M, Damgaard, G, Darbo, G, Daubie, Evelyne, Daum, A, Dauncey, P D, Davenport, Martyn, David, P, Davies, J, Da Silva, W, Defoix, C, Delikaris, D, Delorme, S, Delpierre, P A, Demaria, N, De Angelis, A, De Boeck, H, de Boer, Wim, De Clercq, C, De Fez Laso, M D M, De Groot, N, La Vaissière, C de, De Lotto, B, De Min, A, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Dris, M, Dufour, Y, Dupont, F, Eek, L O, Eerola, Paule Anna Mari, Ehret, R, Ekelöf, T J C, Ekspong, Gösta, Elliot-Peisert, A, Engel, J P, Ershaidat, N, Fassouliotis, D, Feindt, Michael, Fernández-Alonso, M, Ferrer, A, Filippas-Tassos, A, Firestone, A, Föth, H, Fokitis, E, Fontanelli, F, Forbes, K A J, Fousset, J L, Francon, S, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Furnival, K, Fürstenau, H, Fuster, J A, Gamba, D, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gerber, J P, Giacomelli, P, Gokieli, R, Golob, B, Golovatyuk, V M, Gómez-Cadenas, J J, Goobar, A, Gopal, Gian P, Górski, M, Gracco, Valerio, Grant, A, Grard, F, Graziani, E, Grosdidier, G, Gross, E, Grossetête, B, Grosse-Wiesmann, P, Gumenyuk, S A, Guy, J, Haedinger, U, Hahn, F, Hahn, M, Haider, S, Hakansson, A, Hallgren, A, Hamacher, K, Hamel de Monchenault, G, Hao, W, Harris, F J, Henkes, T, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Hietanen, I, Higgins, C O, Higón, E, Hilke, Hans Jürgen, Hodgson, S D, Hofmokl, T, Holmes, R, Holmgren, S O, Holthuizen, D J, Honoré, P F, Hooper, J E, Houlden, M A, Hrubec, Josef, Huet, K, Hulth, P O, Hultqvist, K, Ioannou, P, Isenhower, D, Iversen, P S, Jackson, J N, Jalocha, P, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Johnson, D, Jonker, M, Jönsson, L B, Juillot, P, Kalkanis, G, Kalmus, George Ernest, Kapusta, F, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Kesteman, J, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klempt, W, Klovning, A, Kluit, P M, Koch-Mehrin, A, Köhne, J H, Köne, B, Kokkinias, P, Kopf, M, Korytov, A V, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Królikowski, J, Kronkvist, I J, Krüner-Marquis, U, Krupinski, W, Kulka, K, Kurvinen, K L, Lacasta, C, Lambropoulos, C, Lamsa, J, Lanceri, L, Lapin, V, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Lévy, J M, Lieb, E H, Liko, D, Lindgren, J, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Lokajícek, M, Loken, J G, López-Fernandez, A, López-Aguera, M A, Los, M E, Loukas, D, Lozano-Bahilo, J, Lutz, P, Lyons, L, Maehlum, G, Maillard, J, Maltezos, A, Mandl, F, Marco, J, Margoni, M, Marin, J C, Markou, A, Maron, T, Martí, S, Mathis, L G, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Meola, G, Meroni, C, Meyer, W T, Michelotto, M, Mikulec, I, Mirabito, L, Mitaroff, Winfried A, Mitselmakher, G, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Murray, W J, Muryn, B, Myatt, Gerald, Navarria, Francesco Luigi, Negri, P, Nielsen, B S, Nijjhar, B, Nikolaenko, V, Nilsen, P E S, Niss, P, Obraztsov, V F, Olshevskii, A G, Orava, Risto, Ostankov, A P, Österberg, K, Ouraou, A, Paganoni, M, Pain, R, Palka, H, Papadopoulou, T D, Pape, L, Passeri, A, Pegoraro, M, Pennanen, J, Perevozchikov, V, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Petrovykh, L P, Pettersen, Tor Erik, Pierre, F, Pimenta, M, Pingot, O, Plaszczynski, S, Pol, M E, Polok, G, Poropat, P, Privitera, P, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Ratoff, P N, Read, A L, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, M, Rídky, J, Rinaudo, G, Roditi, I, Romero, A, Roncagliolo, I, Ronchese, P, Rönnqvist, C, Rosenberg, E I, Rossi, S, Rossi, U, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schael, S, Schneider, H, Schulze, B, Schyns, M A E, Sciolla, G, Scuri, F, Segar, A M, Sekulin, R L, Sessa, M I, Sette, G, Seufert, R, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Skjevling, G, Smadja, G, Smith, G R, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Squarcia, S, Stäck, H, Stanescu, C, Stapnes, Steinar, Stavropoulos, G D, Stichelbaut, F, Stocchi, A, Strauss, J, Straver, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Szymanski, P, Tabarelli de Fatis, T, Chikilev, O G, Theodosiou, G E, Tilquin, A, Timmermans, J, Timofeev, V G, Tkatchev, L G, Todorov, T, Toet, D Z, Toker, O, Torassa, E, Tortora, L, Treille, D, Trevisan, U, Trischuk, W, Tristram, G, Troncon, C, Tsirou, A L, Tsyganov, E N, Turala, Michal, Turluer, M L, Tuuva, T, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Valls Ferrer, J A, Van der Velde, C, van Apeldoorn, G W, van Dam, P, Van der Heijden, M, Van Doninck, W K, Vaz, P, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vollmer, M, Voulgaris, G, Voutilainen, M, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Wayne, M, Wehr, A, Weierstall, M, Weilhammer, Peter, Werner, J, Wetherell, Alan M, Wickens, J H, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Wormser, G, Woschnagg, K, Yamdagni, N, Yepes, P, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zhang, G, Zimin, N I, Zito, M, Zuberi, R, Zukanovich-Funchal, R, Zumerle, G, and Zúñiga, J
Subjects: Particle Physics - Experiment
Published: 1992

46. Determination of $\alpha_{s}$ in second order QCD in hadronic Z decays

Author: Abreu, P, Adam, W, Adami, F, Adye, T, Åkesson, T, Alekseev, G D, Allen, P, Almehed, S, Alvsvaag, S J, Amaldi, Ugo, Anassontzis, E G, Antilogus, P, Apel, W D, Apsimon, R J, Åsman, B, Astier, Pierre, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbiellini, Guido, Bardin, Dimitri Yuri, Baroncelli, A, Bärring, O, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Becks, K H, Beeston, C J, Begalli, M, Beillière, P, Belokopytov, Yu A, Beltran, P, Benedic, D, Benlloch, J M, Berggren, M, Bertrand, D, Bianchi, F, Bilenky, S M, Billoir, P, Bjarne, J, Bloch, D, Blyth, S, Bocci, V, Bogolubov, P N, Bolognese, T, Bonapart, M, Bonesini, M, Bonivento, W, Booth, P S L, Boratav, M, Borgeaud, P, Borisov, G, Börner, H, Bosio, C, Bostjancic, B, Botner, O, Bouquet, B, Bourdarios, C, Bozzo, M, Braibant, S, Branchini, P, Brand, K D, Brenner, R A, Bricman, C, Brown, R C A, Brümmer, N, Brunet, J M, Bugge, L, Buran, T, Burmeister, H, Buytaert, J, Caccia, M, Calvi, M, Camacho-Rozas, A J, Campion, A, Camporesi, T, Canale, V, Cao, F, Carena, F, Carroll, L, Caso, Carlo, Castelli, Edoardo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chan, A, Chapkin, M M, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G A, Chevalier, L, Chliapnikov, P V, Chorowicz, V, Cirio, R, Clara, M P, Collins, P, Contreras, J L, Contri, R, Cosme, G, Couchot, F, Crawley, H B, Crennell, D J, Crosetti, G, Crozon, M, Cuevas-Maestro, J, Czellar, S, Dagoret, S, Dahl-Jensen, Erik, D'Almagne, B, Dam, M, Damgaard, G, Darbo, G, Daubie, Evelyne, Dauncey, P D, Davenport, Martyn, David, P, Defoix, C, Delikaris, D, Delorme, S, Delpierre, P A, Demaria, N, De Angelis, A, De Beer, M, De Boeck, H, de Boer, Wim, De Clercq, C, De Fez Laso, M D M, De Groot, N, La Vaissière, C de, De Lotto, B, De Min, A, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Doll, O, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Dris, M, Dufour, Y, Dulinski, W, Eek, L O, Eerola, Paule Anna Mari, Ekelöf, T J C, Ekspong, Gösta, Elliot-Peisert, A, Engel, J P, Fassouliotis, D, Feindt, Michael, Fenyuk, A, Fernández-Alonso, M, Ferrer, A, Filippas-Tassos, A, Firestone, A, Föth, H, Fokitis, E, Folegati, P, Fontanelli, F, Forbes, K A J, Forsbach, H, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Furnival, K, Fürstenau, H, Fuster, J A, Galeazzi, G, Gamba, D, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gerber, J P, Giacomelli, P, Glitza, K W, Gokieli, R, Golovatyuk, V M, Gómez-Cadenas, J J, Goobar, A, Gopal, Gian P, Górski, M, Gracco, Valerio, Grant, A, Grard, F, Graziani, E, Grosdidier, G, Gross, E, Grossetête, B, Grosse-Wiesmann, P, Guy, J, Hahn, F, Hahn, M, Haider, S, Hajduk, Z, Hakansson, A, Hallgren, A, Hamacher, K, Hamel de Monchenault, G, Harris, F J, Heck, B W, Henkes, T, Herbst, I, Hernández, J J, Herquet, P, Herr, H, Hietanen, I, Higgins, C O, Higón, E, Hilke, Hans Jürgen, Hodgson, S D, Hofmokl, T, Holmes, R, Holmgren, S O, Holthuizen, D J, Honoré, P F, Hooper, J E, Houlden, M A, Hrubec, Josef, Hulth, P O, Hultqvist, K, Husson, D, Ioannou, P, Isenhower, D, Iversen, P S, Jackson, J N, Jalocha, P, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Johnson, D, Jonker, M, Jönsson, L B, Juillot, P, Kalkanis, G, Kalmus, George Ernest, Kapusta, F, Katsanevas, S, Katsoufis, E C, Keränen, R, Kesteman, J, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klempt, W, Klovning, A, Kluit, P M, Koch-Mehrin, A, Köhne, J H, Köne, B, Kokkinias, P, Kopf, M, Koratzinos, M, Korcyl, K, Korytov, A V, Kostukhin, V, Kourkoumelis, C, Kreuzberger, T, Królikowski, J, Kronkvist, I J, Krstic, J, Krüner-Marquis, U, Krupinski, W, Kucewicz, W, Kurvinen, K L, Lacasta, C, Lambropoulos, C, Lamsa, J, Lanceri, L, Lapin, V, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Letessier-Selvon, A A, Liko, D, Lillethun, E, Lindgren, J, Lipniacka, A, Lippi, I, Llosa, R, Lörstad, B, Lokajícek, M, Loken, J G, López-Aguera, M A, López-Fernandez, A, Los, M E, Loukas, D, Lounis, A, Lozano-Bahilo, J, Lutz, P, Lyons, L, Maehlum, G, Magnussen, N, Maillard, J, Maltezos, A, Mandl, F, Marco, J, Margoni, M, Marin, J C, Markou, A, Martí, S, Mathis, L G, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Meola, G, Meroni, C, Meyer, W T, Michelotto, M, Mitaroff, Winfried A, Mitselmakher, G, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Nau-Korzen, U, Navarria, Francesco Luigi, Negri, P, Nielsen, B S, Nijjhar, B, Nikolaenko, V, Obraztsov, V F, Österberg, K, Olshevskii, A G, Orava, Risto, Ostankov, A P, Ouraou, A, Paganoni, M, Pain, R, Palka, H, Papadopoulou, T D, Pape, L, Passeri, A, Pegoraro, M, Pennanen, J, Perevozchikov, V, Pernicka, Manfred, Perrotta, A, Pierre, F, Pimenta, M, Pingot, O, Pol, M E, Polok, G, Poropat, P, Privitera, P, Pullia, Antonio, Radojicic, D, Ragazzi, S, Ratoff, P N, Read, A L, Redaelli, N G, Regler, Meinhard, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, M, Rídky, J, Rinaudo, G, Roditi, I, Romero, A, Roncagliolo, I, Ronchese, P, Rönnqvist, C, Rosenberg, E I, Rossi, U, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Yu, Sajot, G, Salt, J, Sánchez, E, Sánchez, J, Sannino, M, Schäffer, M, Schael, S, Schneider, H, Schyns, M A E, Scuri, F, Segar, A M, Sekulin, R L, Sessa, M I, Sette, G, Seufert, R, Shellard, R C, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Skaali, T B, Skjevling, G, Smadja, G, Smith, G R, Sosnowski, R, Spiriti, E, Squarcia, S, Stäck, H, Stanescu, C, Stavropoulos, G D, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Szczekowski, M, Szeptycka, M, Szymanski, P, Tabarelli de Fatis, T, Tavernier, Stefaan, Chikilev, O G, Theodosiou, G E, Tilquin, A, Timmermans, J, Timofeev, V G, Tkatchev, L G, Todorov, T, Toet, D Z, Toker, O, Tomaradze, A G, Torassa, E, Tortora, L, Trainor, M T, Treille, D, Trevisan, U, Trischuk, W, Tristram, G, Troncon, C, Tsirou, A L, Tsyganov, E N, Turala, Michal, Turchetta, R, Turluer, M L, Tuuva, T, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Überschär, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Valls Ferrer, J A, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van der Velde, C, Varela, J, Vaz, P, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Vertogradov, L S, Vibert, L, Vilanova, D, Vishnevski, N K, Vitale, L, Vlasov, E V, Vlassopoulos, S, Vodopyanov, A S, Vollmer, M, Volponi, S, Voulgaris, G, Voutilainen, M, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Wayne, M, Weilhammer, Peter, Werner, J, Wetherell, Alan M, Wickens, J H, Wikne, J, Wilkinson, G R, Williams, W S C, Winter, M, Wormald, D, Wormser, G, Woschnagg, K, Yamdagni, N, Yepes, P, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zhang, G, Zimin, N I, Zito, M, Zitoun, R, Zukanovich-Funchal, R, Zumerle, G, and Zúñiga, J
Subjects: Particle Physics - Experiment
Published: 1992

47. Multiplicity fluctuations in hadronic final states from the decay of the Z0

Author: Abreu, P., Adam, W., Adye, T., Agasi, E., Alekseev, G. D., Algeri, A., Allen, P., Almehed, S., Alvsvaag, S. J., Amaldi, U., Anassontzis, E., Andreazza, A., Antilogus, P., Apel, W. D., Apsimon, R. J., Asman, B., Augustin, J. E., Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barate, R., Barbiellini, G., Bardin, D. Y. u., Baroncelli, A., Barring, O., Barrio, J. A., Bartl, W., Bates, M. J., Battaglia, M., Baubillier, M., Becks, K. H., Beeston, C. J., Begalli, M., Beilliere, P., Belokopytov, Y. u., Beltran, P., Benedic, D., Benvenuti, A. C., Berggren, M., Bertrand, D., Bianchi, Fabrizio, Bilenky, Mikhail S., Pierre, Billoir, Bjarne, J., Bloch, D., Blyth, S., Bocci, V., Bogolyubov, P., Bolognese, T., Bonesini, M., Bonivento, W., Booth, P. S. L., Borgeaud, P., Borisov, G., Borner, H., Bosio, C., Bostjancic, B., Bosworth, S., Botner, O., Bouquet, B., Bourdarios, C., Bowcock, T. J. V., Bozzo, M., Braibant, S., Branchini, P., Brand, K. D., Brenner, R. A., Briand, H., Bricman, C., Brown, R. C. A., Brummer, N., Brunet, J. M., Bugge, L., Buran, T., Burmeister, H., Buytaert, J. A. M. A., Caccia, M., Calvi, M., Camacho Rozas, A. J., Camporesi, T., Canale, V., Cao, F., Carena, F., Carroll, L., Caso, C., Castillo Gimenez, M. V., Cattai, A., Cavallo, F. R., Cerrito, L., Chabaud, V., Chan, A., Charpentier, P., Chaussard, L., Chauveau, J., Checchia, P., Chelkov, G. A., Chevalier, L., Chliapnikov, P., Chorowicz, V., Chrin, J. T., Cirio, Roberto, Clara, M. P., Collins, P., Contreras, J. L., Contri, R., Cortina, E., Cosme, G., Couchot, F., Crawley, H. B., Crennell, D., Crosetti, G., Crozon, M., Cuevas Maestro, J., Czellar, S., Dahl Jensen, E., D'Almagne, B., Dam, M., Damgaard, G., Darbo, G., Daubie, E., Daum, A., Dauncey, Paul D., Davenport, M., David, P., Da Silva, W., Defoix, C., Delikaris, D., Delorme, S., Delpierre, P., Demaria, N., De Angelis, A., De Beer, M., De Boeck, H., de Boer, W., De Clercq, C., De Fez Laso, M. D. M., De Groot, N., de la Vaissiere, C., De Lotto, B., De Min, A., Dijkstra, H., Di Ciaccio, L., Djama, F., Dolbeau, J., Donszelmann, M., Doroba, K., Dracos, M., Drees, J., Dris, M., Dufour, Y., Eek, L. O., Eerola, P. A. M., Ehret, R., Ekelof, T., Ekspong, G., Elliot Peisert, A., Engel, J. P., Fassouliotis, D., Feindt, M., Fernandez Alonso, M., Ferrer, A., Filippas, T. A., Firestone, A., Foeth, H., Fokitis, E., Fontanelli, F., Forbes, K. A. J., Fousset, J. L., Francon, S., Franek, B., Frenkiel, P., Fries, D. C., Frodesen, A. G., Fruhwirth, R., Fulda Quenzer, F., Furnival, K., Furstenau, H., Fuster, J., Galeazzi, G., Gamba, D., Garcia, C., Garcia, J., Gaspar, C., Gasparini, U., Gavillet, P., Evangelos, Gazis, Gerber, J. P., Giacomelli, P., Gokieli, R., Golob, B., Golovatyuk, V. M., Cadenas, J. J. Gomez y., Goobar, A., Gopal, G., Gorski, M., Gracco, V., Grant, A., Grard, F., Graziani, E., Grosdidier, G., Gross, E., Grossetete, B., Grosse Wiesmann, P., Guy, J., Haedinger, U., Hahn, F., Hahn, M., Haider, S., Hajduk, Z., Hakansson, A., Hallgren, A., Hamacher, K., Hamel de Monchenault, G., Hao, W., Harris, F. J., Henkes, T., Hernandez, J. J., Herquet, P., Herr, H., Hessing, T. L., Hietanen, I., Higgins, C. O., Higon, E., Hilke, H. J., Hodgson, S. D., Hofmokl, T., Holmes, R., Holmgren, S. O., Holthuizen, D., Honore, P. F., Hooper, J. E., Houlden, M., Hrubec, J., Huet, C., Hulth, P. O., Hultqvist, K., Ioannou, P., Isenhower, D., Iversen, P. S., John Neil Jackson, Jalocha, P., Jarlskog, G., Jarry, P., Jean Marie, B., Erik Karl Johansson, Johnson, D., Jonker, M., Jonsson, L., Juillot, P., Kalkanis, G., Kalmus, G., Frederic, Kapusta, Karlsson, M., Karvelas, E., Katsanevas, S., Katsoufis, E. C., Keranen, R., Kesteman, J., Khomenko, B. A., Khovansky, N. N., King, B., Kjaer, N. J., Hansjorg, Klein, Klempt, W., Klovning, A., Kluit, P., Koch Mehrin, A., Kohne, J. H., Koene, B., Kokkinias, P., Kopf, M., Korcyl, K., Korytov, A. V., Kostukhin, V., Kourkoumelis, C., Kouznetsov, O., Paul Heinz Kramer, Krolikowski, J., Kronkvist, I., Krstic, J., Kruner Marquis, U., Krupinski, W., Kulka, K., Kurvinen, K., Carlos, Lacasta, Lambropoulos, C., Lamsa, J. W., Lanceri, L., Lapin, V., Laugier, J. P., Lauhakangas, R., Leder, G., Fabienne, Ledroit, Leitner, R., Lemoigne, Y., Lemonne, J., Lenzen, G., Lepeltier, V., Levy, J. M., Elmar, Lieb, Liko, D., Lillethun, E., Lindgren, J., Lindner, R., Lipniacka, A., Lippi, I., Lorstad, B., Lokajicek, M., Loken, J. G., Lopez Fernandez, A., Lopez Aguera, M. A., Los, M., Loukas, D., Lozano, J. J., Lutz, P., Lyons, L., Mahlum, G., Maillard, J., Maltezos, A., Mandl, F., Marco, J., Margoni, M., Marin, J. C., Markou, A., Maron, T., Marti, S., Mathis, L., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, M., Mccubbin, M., Mckay, R., Mcnulty, R., Meola, G., Meroni, C., Meyer, W. T., Michelotto, M., Mikulec, I., Mirabito, L., Mitaroff, W. A., Guenakh, Mitselmakher, Mjornmark, U., Moa, T., Rasmus, Moller, Klaus, Monig, Monge, M. R., Morettini, P., Muller, H., Murray, W. J., Muryn, B., Myatt, G., Naraghi, F., Navarria, F. L., Negri, P., Nielsen, B. S., Nijjhar, B., Nikolaenko, V., Nilsen, P. E. S., Niss, P., Obraztsov, V., Olshevski, A. G., Orava, R., Ostankov, A., Osterberg, K., Ouraou, A., Paganoni, M., Pain, R., Palka, H., Papadopoulou, T., Pape, L., Passeri, A., Pegoraro, M., Pennanen, J., Perevozchikov, V., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Pettersen, T. E., Pierre, F., Pimenta, M., Pingot, O., Pol, M. E., Polok, G., Poropat, P., Privitera, P., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Ratoff, P. N., Read, Alexander L., Nicola Giuseppe Redaelli, Regler, M., Reid, D., Renton, P. B., Resvanis, L. K., Richard, F., Richardson, M., Ridky, J., Rinaudo, G., Roditi, I., Romero, Alessandra, Roncagliolo, I., Ronchese, P., Ronnqvist, C., Rosenberg, E. I., Rossi, S., Rossi, U., Rosso, E., Roudeau, P., Rovelli, T., Ruckstuhl, W., Ruhlmann, V., Ruiz, A., Rybicki, K., Saarikko, H., Sacquin, Y., Sajot, G., Salt, J., Sanchez, J., Sannino, M., Schael, S., Schneider, H., Schyns, M. A. E., Sciolla, G., Fabrizio, Scuri, Segar, A. M., Sekulin, R., Sessa, M., Sette, G., Seufert, R., Shellard, R. C., Siccama, I., Siegrist, P., Simonetti, S., Simonetto, F., Sisakian, A. N., Skaali, T. B., Skjevling, G., Smadja, G., Smith, G. R., Sosnowski, R., Spassov, T. S., Spiriti, E., Squarcia, S., Stack, H., Stanescu, C., Stapnes, S., Stavropoulos, G., Stichelbaut, F., Stocchi, A., Strauss, J., Straver, J., Strub, R., Szczekowski, M., Szeptycka, M., Szymanski, P., Tabarelli, T., Tavernier, S., Chikilev, O., Theodosiou, G., Tilquin, A., Jan, Timmermans, Timofeev, V. G., Tkachev, L. G., Todorov, T., Toet, D. Z., Toker, O., Torassa, E., Tortora, L., Trainor, M. T., Treille, D., Trevisan, U., Trischuk, W., Tristram, G., Troncon, C., Tsirou, A., Tsyganov, E. N., Turala, M., Turluer, M. L., Tuuva, T., Tyapkin, I. A., Tyndel, M., Tzamarias, S., Uberschar, S., Ullaland, O., Uvarov, V. A., Valenti, G., Vallazza, E., Valls Ferrer, J. A., Vander Velde, C., van Apeldoorn, G. W., Piet van Dam, Walter Van Doninck, Vaz, P., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Vertogradov, L. S., Vilanova, D., Vincent, P., Vitale, L., Vlasov, E., Vodopianov, A. S., Vollmer, M., Voulgaris, G., Voutilainen, M., Vrba, V., Wahlen, H., Walck, C., Waldner, F., Wayne, M., Wehr, A., Weierstall, M., Weilhammer, P., Werner, J., Wetherell, A. M., Wickens, J. H., Wikne, J., Wilkinson, G. R., Williams, W. S. C., Winter, M., Wormald, D., Wormser, G., Woschnagg, K., Yamdagni, N., Yepes, P., Zaitsev, A., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zhang, G., Zimin, N. I., Zito, M., Zuberi, R., Zukanovich Funchal, R., Zumerle, G., Zuniga, J., Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: Nuclear and High Energy Physics, Factorial, Particle physics, E+E ANNIHILATION, LUND MONTE-CARLO, Monte Carlo method, Parton, MULTIPARTICLE PRODUCTION, 01 natural sciences, 7. Clean energy, JET FRAGMENTATION, Nuclear physics, Particle decay, RAPIDITY DISTRIBUTIONS, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Rapidity, Z0, 010306 general physics, Parton shower, HIGH-ENERGY COLLISIONS, Quantum chromodynamics, Physics, 010308 nuclear & particles physics, INTERMITTENCY ANALYSIS, QCD, SIMULATION, Gluon, High Energy Physics::Experiment, Física nuclear, Particle Physics - Experiment
Abstract: An analysis of the fluctuations in the phase space distribution of hadrons produced in the decay of 78829 Z0 has been carried out, using the method of factorial moments. The high statistics collected by the DELPHI experiment at LEP during 1990 allowed studies of the event sample both globally and in intervals of p(t) and multiplicity, and for different jet topologies and for single jets. A large contribution to the factorial moments of the one-dimensional data on rapidity with respect to the event axis comes from hard gluons. Details of factorial moments in two and three dimensions are presented. Influences of resonance decays have been studied by Monte Carlo simulation: one-dimensional factorial moments at low p(t), and two-, three-dimensional analyses are affected. Parton shower models describe the data reasonably well.
Published: 1992
Full Text: View/download PDF

48. Classification of the hadronic decays of the Z$^0$ into b and c quark pairs using a neural network

Author: Abreu, P., Adam, W., Adye, T., Agasi, E., Alekseev, G. D., Algeri, A., Allen, P., Almehed, S., Alvsvaag, S. J., Amaldi, U., Anassontzis, E. G., Andreazza, A., Antilogus, P., Apel, W. D., Apsimon, R. J., Asman, B., Augustin, J. E., Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barate, R., Barbiellini, G., Bardin, D. Y., Barker, G., Baroncelli, A., Barring, O., Barrio, J. A., Bartl, W., Bates, M. J., Battaglia, M., Baubillier, M., Becks, K. H., Beeston, C. J., Begalli, M., Beilliere, P., Belokopytov, Y., Beltran, P., Benedic, D., Benvenuti, A. C., Berggren, M., Bertrand, D., Bianchi, F., Bilenky, M. S., Billoir, P., Bjarne, J., Bloch, D., Blyth, S., Bocci, V., Bogolubov, P. N., Bolognese, T., Bonesini, M., Bonivento, W., P. S. L., Borgeaud, P., Borisov, G., Borner, H., Bosio, C., Bostjancic, B., Bosworth, S., Botner, O., Bouquet, B., Bourdarios, C., T. J. V., Bozzo, M., Braibant, S., Branchini, P., Brand, K. D., Brenner, R. A., Briand, H., Bricman, C., R. C. A., Brummer, N., Brunet, J. M., Bugge, L., Buran, T., Burmeister, H., J. A. M., Caccia, M., Calvi, M., A. J. C., Camporesi, T., Canale, V., Cao, F., Carena, F., Carroll, L., Caso, C., M. V. C., Cattai, A., Cavallo, F. R., Cerrito, L., Chabaud, V., Chan, A., Charpentier, P., Chaussard, L., Chauveau, J., Checchia, P., Chelkov, G. A., Chevalier, L., Chliapnikov, P., Chorowicz, V., J. T. M., Ciuchini, M., Clara, M. P., Collins, P., Contreras, J. L., Contri, R., Cortina, E., Cosme, G., Cosmo, G., Couchot, F., Crawley, H. B., Crennell, D., Crosetti, G., Crozon, M., Maestro, J. C., Czellar, S., Dahljensen, E., Dalmagne, B., Dam, M., Damgaard, G., Darbo, G., Daubie, E., Daum, A., Dauncey, P. D., Davenport, M., David, P., Dasilva, W., Defoix, C., Delikaris, D., Delorme, S., Delpierre, P., Delgiudice, P., Demaria, N., Deangelis, A., Debeer, M., Deboeck, H., Deboer, W., Declercq, C., M. D. M., Degroot, N., Delavaissiere, C., Delotto, B., Demin, A., Dijkstra, H., Diciaccio, L., Diama, F., Dolbeau, J., Donszelmann, M., Doroba, K., Dracos, M., Drees, J., Dris, M., Dufour, Y., Eek, L. O., P. A. M., Ehret, R., Ekelof, T., Ekspong, G., Peisert, A. E., Engel, J. P., Fassouliotis, D., Feindt, M., Alonso, M. F., Ferrer, A., Filippas, T. A., Firestone, A., Foeth, H., Fokitis, E., Fontanelli, F., K. A. J., Fousset, J. L., Francon, S., Franek, B., Frenkiel, P., Fries, D. C., Frodesen, A. G., Fruhwirth, R., Fuldaquenzer, F., Furnival, K., Furstenau, H., Fuster, J., Galeazzi, G., Gamba, D., Garcia, C., Garcia, J., Gaspar, C., Gasparini, U., Gavillet, P., Gazis, E. N., Gerber, J. P., Giacomelli, P., Gokieli, R., Golob, B., Goloyatyuk, V. M., J. J. G., Goobar, A., Gopal, G., Gorski, M., Gracco, V., Grant, A., Grard, F., Graziani, E., Grosdidier, G., Gross, E., Grossewiesmann, P., Grossetete, B., Gumenyuk, S., Guy, J., Haedinger, U., Hahn, F., Hahn, M., Haider, S., Hajduk, Z., Hakansson, A., Hallgren, A., Hamacher, K., Demonchenault, G. H., Hao, W., Harris, F. J., Henkes, T., Hernandez, J. J., Herquet, P., Herr, H., Hessing, T. L., Hietanen, I., Higgins, C. O., Higon, E., Hilke, H. J., Hodgson, S. D., Hofmokl, T., Holmes, R., Holmgren, S. O., Holthuizen, D., Honore, P. F., Hooper, J. E., Houlden, M., Hrubec, J., Huet, C., Hulth, P. O., Hultqvist, K., Ioannou, P., Isenhower, D., Iversen, P. S., Jackson, J. N., Jalocha, P., Jarlskog, G., Jarry, P., Jeanmarie, B., Johansson, E. K., Johnson, D., Jonker, M., Jonsson, L., Juillot, P., Kalkanis, G., Kalkkinen, J., Kalmus, G., Kapusta, F., Karlsson, M., Karvelas, E., Katsanevas, S., Katsoufis, E. C., Keranen, R., Kesteman, J., Khomenko, B. A., Khovanski, N. N., King, B., Kjaer, N. J., Klein, H., Klempt, W., Klovning, A., Kluit, P., Kochmehrin, A., Koehne, J. H., Koene, B., Kokkinias, P., Kopf, M., Korcyl, K., Korytov, A. V., Kostioukhine, V., Kourkoumelis, C., Kouznetsov, O., Kramer, P. H., Krolikowski, J., Kronkvist, I., Kruenermarquis, U., Kucewicz, W., Kulka, K., Kurvinen, K., Lacasta, C., Lambropoulos, C., Lamsa, J. W., Lanceri, L., Lapin, V., Laugier, J. P., Lauhakangas, R., Leder, G., Ledroit, F., Leitner, R., Lemoigne, Y., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Levy, J. M., Lieb, E., Liko, D., Lindgren, J., Lindner, R., Lipniacka, A., Lippi, I., Loerstad, B., Lokajicek, M., Loken, J. G., Lopezfernandez, A., M. A. L., Los, M., Loukas, D., Lozano, J. J., Lutz, P., Lyons, L., Maehlum, G., Maillard, J., Maltezos, A., Mandl, F., Marco, J., Margoni, M., Marin, J. C., Markou, A., Maron, T., Marti, S., Mathis, L., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, M., Mccubbin, M., Mckay, R., Mcnulty, R., Meola, G., Meroni, C., Meyer, W. T., Michelotto, M., Mikulec, I., Mirabito, L., Mitaroff, W. A., Mitselmakher, G. V., Mjoernmark, U., Moa, T., Moeller, R., Moenig, K., Monge, M. R., Morettini, P., Mueller, H., Murray, W. J., Myatt, G., Naraghi, F., Navarria, F. L., Negri, P., Nielsen, B. S., Nijjhar, B., Nikolaenko, V., P. E. S., Niss, P., Obraztsov, V., Olshevski, A. G., Orava, R., Ostankov, A., Osterberg, K., Ouraou, A., Paganoni, M., Pain, R., Palka, H., Papadopoulou, T. D., Pape, L., Passeri, A., Pegoraro, M., Pennanen, J., Perevozchikov, V., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Petrovykh, L., Pettersen, T. E., Pierre, F., Pimenta, M., Pingot, O., Plaszczynski, S., Pol, M. E., Polok, G., Poropat, P., Privitera, P., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Ratoff, P. N., Read, A. L., Redaelli, N. G., Regler, M., Reid, D., Renton, P. B., Resvanis, L. K., Richard, F., Richardson, M., Ridky, J., Rinaudo, G., Roditi, I., Romero, Alessandra, Roncagliolo, I., Ronchese, P., Ronnqvist, C., Rosenberg, E. I., Rossi, S., Rossi, U., Rosso, E., Roudeau, P., Rovelli, T., Ruckstuhl, W., Ruhlmannkleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sajot, G., Salt, J., Sanchez, J., Sannino, M., Schael, S., Schneider, H., Schulze, B., M. A. E., Sciolla, G., Scuri, F., Segar, A. M., Sekulin, R., Sessa, M., Sette, G., Seufert, R., Shellard, R. C., Siccama, I., Siegrist, P., Simonetti, S., Simonetto, F., Sisakian, A. N., Skaali, T. B., Skjevling, G., Smadja, G., Smith, G. R., Sosnowski, R., Spassoff, T. S., Spiriti, E., Squarcia, S., Staeck, H., Stanescu, C., Stapnes, S., Stavropoulos, G., Stichelbaut, F., Stocchi, A., Strauss, J., Straver, J., Strub, R., Szczekowski, M., Szeptycka, M., Szymanski, P., Tabarelli, T., Tavernier, S., Tchikilev, O., Theodosiou, G. E., Tilquin, A., Timmermans, J., Timofeev, V. G., Tkatchev, I. G., Todorov, T., Toet, D. Z., Toker, O., Torassa, E., Tortora, L., Treille, D., Trevisan, U., Tristram, G., Troncon, C., Tsirou, A., Tsyganov, E. N., Turluer, M. L., Tuuva, T., Tyapkin, I. A., Tyndel, M., Tzamarias, S., Ueberschaer, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., J. A. V., Vandervelde, C., Vanapeldoorn, G. W., Vandam, P., Vanderheijden, M., Vandoninck, W. K., Vaz, P., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Vertogradov, L. S., Vilanova, D., Vincent, P., Vitale, L., Vlasov, E., Vodopyanov, A. S., Vollmer, M., Voulgaris, G., Voutilainen, M., Vrba, V., Wahlen, H., Walck, C., Waldner, F., Wayne, M., Wehr, A., Weierstall, M., Weilhammer, P., Werner, J., Wickens, J. H., Wikne, J., Wilkinson, G. R., W. S. C., Winter, M., Witek, M., Wormald, D., Wormser, G., Woschnagg, K., Yamdagni, N., Yepes, P., Zaitsev, A., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zhang, G., Zimin, N. I., Zito, M., Zuberi, R., Funchal, R. Z., Zumerle, G., Zuniga, J., Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: Quark, Nuclear and High Energy Physics, Particle physics, LUND MONTE-CARLO, HEAVY FLAVOR PRODUCTION, JET FRAGMENTATION, PHYSICS, BOSON, Electron–positron annihilation, Flavour, Hadron, MathematicsofComputing_GENERAL, Computer Science::Digital Libraries, 01 natural sciences, Charm quark, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Physics, Artificial neural network, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, TheoryofComputation_GENERAL, MathML, Computer Science::Mathematical Software, High Energy Physics::Experiment, Física nuclear, Classifier (UML), Particle Physics - Experiment
Abstract: A classifier based on a feed-forward neural network has been used for separating a sample of about 123 500 selected hadronic decays of the Z 0 , collected by DELPHI during 1991, into three classes according to the flavour of the original quark pair: u u +d d +s s (unresolved), c c and b b . The classification has been used to compute the partial widths of the Z 0 into b and c quark pairs. This gave Γ c c /Γ h = 0.151 ± 0.008 ( stat. ) ± 0.041 ( syst. ) , Γ b b /Γ h = 0.232±0.005 ( stat. )±0.017 ( syst. ) .
Published: 1992
Full Text: View/download PDF

49. A Measurement of Sin2-theta-w From the Charge Asymmetry of Hadronic Events At the Z0 Peak

Author: Abreu, P., Adam, W., Adami, F., Adye, T., Akesson, T., Alekseev, G. D., Allen, P., Almehed, S., Alvsvaag, S. J., Amaldi, U., Anassontzis, E., Antilogus, P., Apel, W. D., Apsimon, R. J., Asman, B., Augustin, J. E., Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barate, R., Barbiellini, G., Bardin, D. Y., Baroncelli, A., Barring, O., Bartl, W., Bates, M. J., Battaglia, M., Baubillier, M., Becks, K. H., Beeston, C. J., Begalli, M., Beilliere, P., Belokopytov, Y., Beltran, P., Benedic, D., Benlloch, J. M., Berggren, M., Bertrand, D., Bianchi, F., Bilenky, M. S., Billoir, P., Bjarne, J., Bloch, D., Blyth, S., Bocci, V., Bogolubov, P. N., Bolognese, T., Bonapart, M., Bonesini, M., Bonivento, W., P. S. L., Borgeaud, P., Borisov, G., Borner, H., Bosio, C., Bostjancic, B., Botner, O., Bouquet, B., Bourdarios, C., Bozzo, M., Braibant, S., Branchini, P., Brand, K. D., Brenner, R. A., Briand, H., Bricman, C., R. C. A., Brummer, N., Brunet, J. M., Bugge, L., Buran, T., Burmeister, H., J. A. M., Caccia, M., Calvi, M., A. J. C., Campion, A., Camporesi, T., Canale, V., Cao, F., Carena, F., Carroll, L., Caso, C., Castelli, E., M. V. C., Cattai, A., Cavallo, F. R., Cerrito, L., Chan, A., Charpentier, P., Chaussard, L., Chauveau, J., Checchia, P., Chelkov, G. A., Chevalier, L., Chliapnikov, P., Chorowicz, V., Cirio, Roberto, Clara, M. P., Collins, P., Contreras, J. L., Contri, R., Cosme, G., Couchot, F., Crawley, H. B., Crennell, D., Crosetti, G., Crozon, M., Maestro, J. C., Czellar, S., Dagoret, S., Dahljensen, E., Dalmagne, B., Dam, M., Damgaard, G., Darbo, G., Daubie, E., Dauncey, P. D., Davenport, M., David, P., Dasilva, W., Defoix, C., Delikaris, D., Delorme, S., Delpierre, P., Demaria, N., Deangelis, A., Debeer, M., Deboeck, H., Deboer, W., Declercq, C., M. D. M., Degroot, N., Delavaissiere, C., Delotto, B., Demin, A., Dijkstra, H., Diciaccio, L., Djama, F., Dolbeau, J., Donszelmann, M., Doroba, K., Dracos, M., Drees, J., Dris, M., Dufour, Y., Dulinski, W., Eek, L. O., P. A. M., Ekelof, T., Ekspong, G., Peisert, A. E., Engel, J. P., Fassouliotis, D., Feindt, M., Fenyuk, A., Alonso, M. F., Ferrer, A., Filippas, T. A., Firestone, A., Foeth, H., Fokitis, E., Folegati, P., Fontanelli, F., K. A. J., Franek, B., Frenkiel, P., Fries, D. C., Frodesen, A. G., Fruhwirth, R., Fuldaquenzer, F., Furnival, K., Furstenau, H., Fuster, J., Galeazzi, G., Gamba, D., Garcia, C., Garcia, J., Gaspar, C., Gasparini, U., Gavillet, P., Gazis, E. N., Gerber, J. P., Giacomelli, P., Gokieli, R., Golovatyuk, V. M., J. J. G., Goobar, A., Gopal, G., Gorski, M., Gracco, V., Grant, A., Frard, F., Graziani, E., Grosdidier, G., Gross, E., Grossewiesmann, P., Grossetete, B., Gumenyuk, S., Guy, J., Hahn, F., Hahn, M., Haider, S., Hajduk, Z., Hakansson, A., Hallgren, A., Hamacher, K., Demonchenault, G. H., Harris, F. J., Heck, B. W., Henkes, T., Hernandez, J. J., Herquet, P., Herr, H., Hietanen, I., Higgins, C. O., Higon, E., Hilke, H. J., Hodgson, S. D., Hofmokl, T., Holmes, R., Holmgren, S. O., Holthuizen, D., Honore, P. F., Hooper, J. E., Houlden, M., Hrubec, J., Hulth, P. O., Hultqvist, K., Husson, D., Ioannou, P., Isenhower, D., Iversen, P. S., Jackson, J. N., Jalocha, P., Jarlskog, G., Jarry, P., Jeanmarie, B., Johansson, E. K., Johnson, D., Jonker, M., Jonsson, L., Juillot, P., Kalkanis, G., Kalmus, G., Kapusta, F., Karlsson, M., Katsanevas, S., Katsoufis, E. C., Keranen, R., Kesteman, J., Khomenko, B. A., Khovanski, N. N., King, B., Kjaer, N. J., Klein, H., Klempt, W., Klovning, A., Kluit, P., Koehne, J. H., Koene, B., Kokkinias, P., Kopf, M., Koratzinos, M., Korcyl, K., Korytov, A. V., Kostiukhin, V., Kostrikov, M., Kourkoumelis, C., Kramer, P. H., Kreuzberger, T., Krolikowski, J., Kronkvist, I., Krstic, J., Kruenermarquis, U., Krupinski, W., Kucewicz, W., Kurvinen, K., Lacasta, C., Lambropoulos, C., Lamsa, J. W., Lanceri, L., Lapin, V., Laugier, J. P., Lauhakangas, R., Leder, G., Ledroit, F., Leitner, R., Lemoigne, Y., Lemonne, J., Lenzen, G., Lepeltier, V., Letessierselvon, A., Lieb, E., Liko, D., Lillethun, E., Lindgren, J., Lindner, R., Lipniacka, A., Lippi, I., Llosa, R., Loerstad, B., Lokajicek, M., Loken, J. G., Lopezfernandez, A., M. A. L., Los, M., Loukas, D., Lounis, A., Lozano, J. J., Lutz, P., Lyons, L., Maehlum, G., Maillard, J., Maltezos, A., Mandl, F., Marco, J., Margoni, M., Marin, J. C., Markou, A., Maron, T., Marti, S., Mathis, L., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, M., Mccubbin, M., Mckay, R., Mcnulty, R., Menichetti, Ezio, Meola, G., Meroni, C., Meyer, W. T., Michelotto, M., Mitaroff, W. A., Mitselmakher, G. V., Mjoernmark, U., Moa, T., Moeller, R., Moenig, K., Monge, M. R., Morettini, P., Mueller, H., Murray, W. J., Muryn, B., Myatt, G., Naraghi, F., Navarria, F. L., Negri, P., Nielsen, B. S., Nijjhar, B., Nikolaenko, V., Obraztsov, V., Oesterberg, K., Olshevski, A. G., Orava, R., Ostankov, A., Ouraou, A., Paganoni, M., Pain, R., Palka, H., Papadopoulou, T., Pape, L., Passeri, A., Pegoraro, M., Pennanen, J., Perevozchikov, V., Pernicka, M., Perrotta, A., Pierre, F., Pimenta, M., Pingot, O., Pol, M. E., Polok, G., Poropat, P., Privitera, P., Pullia, A., Radojicic, D., Ragazzi, S., Ratoff, P. N., Read, A. L., Redaelli, N. G., Regler, M., Reid, D., Renton, P. B., Resvanis, L. K., Richard, F., Richardson, M., Ridky, J., Rinaudo, G., Roditi, I., Romero, Alessandra, Roncagliolo, I., Ronchese, P., Ronnqvist, C., Rosenberg, E. I., Rossi, U., Rosso, E., Roudeau, P., Rovelli, T., Ruckstuhl, W., Ruhlmann, V., Ruiz, A., Rybicki, K., Saarikko, H., Sacquin, Y., Sajot, G., Salt, J., Sanchez, E., Sanchez, J., Sannino, M., Schaeffer, M., Schael, S., Schneider, H., M. A. E., Scuri, F., Segar, A. M., Sekulin, R., Sessa, M., Sette, G., Seufert, R., Shellard, R. C., Siegrist, P., Simonetti, S., Simonetto, F., Sissakian, A. N., Skaali, T. B., Skjevling, G., Smadja, G., Smirnov, N., Smith, G. R., Sosnowski, R., Spassoff, T. S., Spiriti, E., Squarcia, S., Staeck, H., Stanescu, C., Stavropoulos, G., Stichelbaut, F., Stocchi, A., Strauss, J., Strub, R., Szczekowski, M., Szeptycka, M., Szymanski, P., Tabarelli, T., Tavernier, S., Theodosiou, G. E., Tilquin, A., Timmermans, J., Timofeev, V. G., Tkatchev, L. G., Todorov, T., Toet, D. Z., Toker, O., Torassa, E., Tortora, L., Trainor, M. T., Treille, D., Trevisan, U., Trischuk, W., Tristram, G., Troncon, C., Tsirou, A., Tsyganov, E. N., Turala, M., Turchetta, R., Turluer, M. L., Tuuva, T., Tyapkin, I. A., Tyndel, M., Tzamarias, S., Ueberschaer, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., J. A. V., Vandervelde, C., Vanapeldoorn, G. W., Vandam, P., Vandoninck, W. K., Varela, J., Vaz, P., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Vertogradov, L. S., Vilanova, D., Vitale, L., Vlasov, E., Vlassopoulos, S., Vodopyanov, A. S., Vollmer, M., Volponi, S., Voulgaris, G., Voutilainen, M., Vrba, V., Wahlen, H., Walck, C., Waldner, F., Wayne, M., Wehr, A., Weierstall, M., Weilhammer, P., Werner, J., Wetherell, A. M., Wickens, J. H., Wikne, J., Wilkinson, G. R., W. S. C., Winter, M., Wormald, D., Wormser, G., Woschnagg, K., Yamdagni, N., Yepes, P., Zaitsev, A., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zhang, G., Zimin, N. I., Zito, M., Zitoun, R., Funchal, R. Z., Zumerle, G., Zuniga, J., Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)
Subjects: Nuclear and High Energy Physics, Particle physics, E+E ANNIHILATION, LUND MONTE-CARLO, Electron–positron annihilation, media_common.quotation_subject, Hadron, Jet (particle physics), collective information systems, 01 natural sciences, Asymmetry, JET FRAGMENTATION, Nuclear physics, PHYSICS, 0103 physical sciences, personal information system, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Z-DECAYS, 010306 general physics, media_common, Physics, Range (particle radiation), 010308 nuclear & particles physics, Weinberg angle, Charge (physics), information science, Quadratic Gauss sum, information pratices, Physique des particules élémentaires, High Energy Physics::Experiment, Física nuclear, Particle Physics - Experiment
Abstract: View references (24)The weak mixing angle has been measured from the charge asymmetry of hadronic events with two different approaches using the DELPHI detector at LEP. Both methods are based on a momentum-weighted charge sum to determine the jet charge in both event hemispheres. In a data sample of 247 300 multihadronic Z0 decays a charge asymmetry of 〈QF〉 - 〈QB〉 = -0.0076±0.0012(stat.)±0.0005(exp. syst.)±0.0014(frag.) and a raw forward-backward asymmetry of Araw FB = -0.0109±0.0020(stat.)±0.0010(exp. syst.)±0.0017(frag.) have been measured. This result corresponds to a value of sinθeff=0.2345±0.0030(exp.)±0.0027(frag.) ,sin2θMS=0.2341±0.0030(exp.)±0. 0027(frag.) and to sin2θW=1-m2 W/m2 Z=0.2299± 0.0030(exp.)±0.0027(frag.)±0.0028(theor.). The experimental error is the quadratic sum of the statistical and the experimental systematic error and the theoretical error originates from a value of mt=130±40 GeV/c2 and a range of mH from 45 GeV/c2 to 1000 GeV/c2., 0, info:eu-repo/semantics/published
Published: 1992
Full Text: View/download PDF

50. Measurement of the Z$^0$ branching fraction to b quark pairs using the boosted sphericity product

Author: Abreu, P., Adam, W., Adami, F., Adye, T., Akesson, T., Alekseev, G. D., Allen, P., Almehed, S., Alvsvaag, S. J., Amaldi, U., Anassontzis, E., Antilogus, P., Apel, W. D., Apsimon, R. J., Asman, B., E Augustin, J., Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barate, R., Guido Barbiellini, Yu Bardin, D., Baroncelli, A., Barring, O., Bartl, W., Bates, M. J., Battaglia, M., Baubillier, M., Becks, K. H., Beeston, C. J., Begalli, M., Beilliere, P., Yu. Belokopytov, Beltran, P., Benedic, D., Benlloch, J. M., Berggren, M., Bertrand, D., Bianchi, F., Bilenkii, M. S., Billoir, P., Bjarne, J., Bloch, D., Blyth, S., Bocci, V., Bogolubov, P. N., Bolognese, T., Bonesini, M., Bonivento, W., Booth, P. S. L., Borgeaud, P., Borisov, G., Borner, H., Bosio, C., Bostjancic, B., Botner, O., Bouquet, B., Bourdarios, C., Bowcock, T. J. V., Bozzo, M., Braibant, S., Branchini, P., Brand, K. D., Brenner, R. A., Briand, H., Bricman, C., Brown, R. C. A., Brummer, N., Brunet, J. M., Bugge, L., Buran, T., Burmeister, H., Buytaert, J. A. M. A., Caccia, M., Calvi, M., Camacho Rozas, A. J., Camporesi, T., Canale, V., Cao, F., Carena, F., Carroll, L., Caso, C., Castelli, E., Castillo Gimenez, M. V., Cattai, A., Cavallo, F. R., Cerrito, L., Chan, A., Chapkin, M., Charpentier, P., Chaussard, L., Chauveau, J., Checchia, P., Chelkov, G. A., Chevalier, L., Chliapnikov, P., Chorowicz, V., Cirio, R., Clara, M. P., Collins, P., Contreras, J. L., Contri, R., Cosme, G., Couchot, F., Crawley, H. B., Crennell, D., Crosetti, G., Crozon, M., Cuevas Maestro, J., Czellar, S., Sylvie DAGORET, Dahl-Jensen, E., Almagne, B. D., Dam, M., Damgaard, G., Darbo, G., Daubie, E., Dauncey, P. D., Davenport, M., David, P., Da Silva, W., Defoix, C., Delikaris, D., Delorme, S., Delpierre, P., Demaria, N., Angelis, A., Beer, M., Boeck, H., Boer, W., Clercq, C., Fez Laso, M. D. M., Groot, N., La Vaissiere, C., Lotto, B., Min, A., Dijkstra, H., Di Ciaccio, L., Djama, F., Dolbeau, J., Donszelmann, M., Doroba, K., Dracos, M., Drees, J., Dris, M., Dufour, Y., Dulinski, W., Eek, L. O., Eerola, P. A., Ekelof, T., Ekspong, G., Elliot Peisert, A., Engel, J. P., Fassouliotis, D., Feindt, M., Fernandez Alonso, M., Ferrer, A., Filippas, T. A., Firestone, A., Foeth, H., Fokitis, E., Folegati, P., Fontanelli, F., Forbes, K. A. J., Franek, B., Frenkiel, P., Fries, D. C., Frodesen, A. G., Fruhwirth, R., Fulda-Quenzer, F., Furnival, K., Furstenau, H., Fuster, J., Galeazzi, G., Gamba, D., Garcia, C., Garcia, J., Gaspar, C., Gasparini, U., Gavillet, P., Gazis, E. N., Gerber, J. P., Giacomelli, P., Gokieli, R., Golovatyuk, V. M., Gomez, Y. Cadenas J. J., Goobar, A., Gopal, G., Gorski, M., Gracco, V., Grant, A., Grard, F., Graziani, E., Grosdidier, G., Gross, E., Grosse-Wiesmann, P., Grossetete, B., Gumenyuk, S., Guy, J., Hahn, F., Hahn, M., Haider, S., Hajduk, Z., Hakansson, A., Hallgren, A., Hamacher, K., Hamel Monchenault, G., Hao, W., Harris, F. J., Heck, B. W., Henkes, T., Hernandez, J. J., Herquet, P., Herr, H., Hessing, T. L., Hietanen, I., Higgins, C. O., Higon, E., Hilke, H. J., Hodgson, S. D., Hofmokl, T., Holmes, R., Holmgren, S. O., Holthuizen, D., Honore, P. F., Hooper, J. E., Houlden, M., Hrubec, J., Hulth, P. O., Hultqvist, K., Husson, D., Ioannou, P., Isenhower, D., Iversen, P. S., Jackson, J. N., Jalocha, P., Jarlskog, G., Jarry, P., Jean-Marie, B., Johansson, E. K., Johnson, D., Jonker, M., Jonsson, L., Juillot, P., Kalkanis, G., Kalmus, G., Kapusta, F., Karlsson, M., Katsanevas, S., Katsoufis, E. C., Keranen, R., Kesteman, J., Khomenko, B. A., Khovanski, N. N., King, B., Kjaer, N. J., Klein, H., Klempt, W., Klovning, A., Kluit, P., Kohne, J. H., Koene, B., Kokkinias, P., Kopf, M., Koratzinos, M., Korcyl, K., Korytov, A. V., Kostioukhine, V., Kourkoumelis, C., Kramer, P. H., Kreuzberger, T., Krolikowski, J., Kronkvist, I., Krstic, J., Kruner-Marquis, U., Krupinski, W., Kucewicz, W., Kurvinen, K., Lacasta, C., Lambropoulos, C., Lamsa, J. W., Lanceri, L., Lapin, V., Laugier, J. P., Lauhakangas, R., Leder, G., Ledroit, F., Leitner, R., Lemoigne, Y., Lemonne, J., Lenzen, G., Lepeltier, V., Letessier-Selvon, A., Lieb, E., Liko, D., Lillethun, E., Lindgren, J., Lindner, R., Lipniacka, A., Lippi, I., Llosa, R., Lorstad, B., Lokajicek, M., Loken, J. G., Lopez-Fernandez, A., Lopes Aguera, M. A., Los, M., Loukas, D., Lounis, A., Lozano, J. J., Lutz, P., Lyons, L., Maehlum, G., Maillard, J., Maltezos, A., Mandl, F., Marco, J., Margoni, M., Marin, J. C., Markou, A., Maron, T., Marti, S., Mathis, L., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, M., Mccubbin, M., Mckay, R., Mcnulty, R., Menichetti, E., Meola, G., Meroni, C., Meyer, W. T., Michelotto, M., Mitaroff, W. A., Mitselmakher, G., Mjornmark, U., Moa, T., Moller, R., Monig, K., Monge, M. R., Morettini, P., Muller, H., Murray, W. J., Muryn, B., Myatt, G., Naraghi, F., Navarria, F. L., Negri, P., Nielsen, B. S., Nijjhar, B., Nikolaenko, V., Obraztsov, V., Oesterberg, K., Olshevski, A. G., Orava, R., Ostankov, A., Ouraou, A., Paganoni, M., Pain, R., Palka, H., Papadopoulou, T., Pape, L., Passeri, A., Pegoraro, M., Pennanen, J., Perevozchikov, V., Pernicka, M., Perrotta, A., Pierre, F., Pimenta, M., Pingot, O., Pol, M. E., Polok, G., Poropat, P., Privitera, P., Pullia, A., Radojicic, D., Ragazzi, S., Ratoff, P. N., Read, A. L., Redaelli, N. G., Regler, M., Reid, D., Renton, P. B., Resvanis, L. K., Richard, F., Richardson, M., Ridky, J., Rinaudo, G., Roditi, I., Romero, A., Roncagliolo, I., Ronchese, P., Ronnqvist, C., Rosenberg, E. I., Rossi, U., Rosso, E., Roudeau, P., Rovelli, T., Ruckstuhl, W., Ruhlmann, V., Ruiz, A., Rybicki, K., Saarikko, H., Sacquin, Y., Sajot, G., Salt, J., Sanchez, E., Sanchez, J., Sannino, M., Schaeffer, M., Schael, S., Schneider, H., Schyns, M. A. E., Scuri, F., Segar, A. M., Sekulin, R., Sessa, M., Sette, G., Seufert, R., Shellard, R. C., Siegrist, P., Simonetti, S., Simonetto, F., Sisakian, A. N., Skaali, T. B., Skjevling, G., Smadja, G., Smith, G. R., Sosnowski, R., Spassoff, T. S., Spiriti, E., Squarcia, S., Stack, H., Stanescu, C., Stavropoulos, G., Stichelbaut, F., Stocchi, A., Strauss, J., Straver, J., Strub, R., Szczekowski, M., Szeptycka, M., Szymanski, P., Tabarelli, T., Tavernier, S., Chikilev, O., Theodosiou, G., Tilquin, A., Timmermans, J., Timofeev, V. G., Tkachev, L. G., Todorov, T., Toet, D. Z., Toker, O., Torassa, E., Tortora, L., Trainor, M. T., Treille, D., Trevisan, U., Trischuk, W., Tristram, G., Troncon, C., Tsirou, A., Tsyganov, E. N., Turala, M., Turchetta, R., Turluer, M., Tuuva, T., Tyapkin, I. A., Tyndel, M., Tzamarias, S., Uberschar, S., Ullaland, O., Uvarov, V. A., Valenti, G., Vallazza, E., Valls Ferrer, J. A., Vander Velde, C., Apeldoorn, G. W., Dam, P., Doninck, W. K., Varela, J., Vaz, P., Vegni, G., Laurent Ventura, Venus, W., Verbeure, F., Vertogradov, L. S., Vilanova, D., Vishnevskii, N., Vitale, L., Vlasov, E. V., Vlassopulos, S., Vodopyanov, A. S., Vollmer, M., Volponi, S., Voulgaris, G., Voutilainen, M., Vrba, V., Wahlen, H., Walck, C., Waldner, F., Wayne, M., Wehr, A., Weierstall, M., Weilhammer, P., Werner, J., Wetherell, A. M., Wickens, J. H., Wikne, J., Wilkinson, G. R., Williams, W. S. C., Winter, M., Wormald, D., Wormser, G., Woschnagg, K., Yamdagni, N., Yepes, P., Zaitsev, A., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zhang, G., Zimin, N. I., Zito, M., Zitoun, R., Zukanovich Funchal, R., Zumerle, G., Zuniga, J., Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU)
Subjects: Nuclear and High Energy Physics, Particle physics, E+E ANNIHILATION, LUND MONTE-CARLO, Electron–positron annihilation, Hadron, 01 natural sciences, Bottom quark, JET FRAGMENTATION, DECAYS, Standard Model, Sphericity, Nuclear physics, PHYSICS, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Nuclear Experiment, Physics, 010308 nuclear & particles physics, Branching fraction, High Energy Physics::Phenomenology, Product (mathematics), Física nuclear, High Energy Physics::Experiment, Particle Physics - Experiment, Lepton
Abstract: From a sample of about 120 000 hadronic Z 0 decays, using a technique based on a separation of the different event categories in the boosted sphericity product, the fraction of b b decays has been measured to be 0.219 ± 0.014 (stat)± 0.019 (syst). Using the DELPHI determination of the hadronic Z 0 width, this corresponds to a partial width τ b b = 378 ± 42 MeV (in good agreement with the standard model prediction of ∼-380 MeV). Combining this measurement with the determinations based on events with high p t leptons gives an estimate for the branching ratio of b into leptons at LEP of (11.2 ± 1.2)%, consistent with previous determinations.
Published: 1992
Full Text: View/download PDF

Catalog

Books, media, physical & digital resources

See catalog results

Searchworks

Select search scope, currently: Articles Catalog books, media & more in Jio Institute collections Articles journal articles & other e-resources

Search

Search Constraints

Refine your results

Search Limiters

Topic

Publication Year Range

Language

Journal

Database

Publisher

68 results on '"Gerber, J. P."'

Search Results

Catalog

Select search scope, currently: Articles

Catalog

books, media & more in Jio Institute collections

Articles

journal articles & other e-resources