Author: "Tkatchev LG" / Publication Year Range: Last 50 years - Searchworks@Jio Institute Digital Library Search Results

Your search keyword '"Tkatchev LG"' showing total 188 results

Start Over Author "Tkatchev LG" Publication Year Range Last 50 years

188 results on '"Tkatchev LG"'

1. Identified charged particles in quark and gluon jets

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., Alekseev, Gd, Alemany, R., Allmendinger, T., Allport, Pp, Almehed, S., Amaldi, U., Amapane, N., Amato, S., Anassontzis, Eg, Andersson, P., Andreazza, A., Andringa, S., Antilogus, P., Apel, Wd, Arnoud, Y., Asman, B., Augustin, Je, Augustinus, A., Baillon, P., Ballestrero, A., Bambade, P., Barao, F., Barbiellini, G., Barbier, R., Bardin, Dy, Barker, G., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, Kh, Begalli, M., Behrmann, A., Beilliere, P., Belokopytov, Y., Belous, K., Benekos, Nc, Benvenuti, Ac, Berat, C., Berggren, M., Bertrand, D., Besancon, M., Bigi, M., Bilenky, Ms, Bizouard, Ma, Bloch, D., Blom, Hm, Bonesini, M., Boonekamp, M., Booth, Psl, Borgland, Aw, Borisov, G., Bosio, C., Botner, O., Boudinov, E., Bouquet, B., Bourdarios, C., Bowcock, Tjv, Boyko, I., Bozovic, I., Bozzo, M., Bracko, M., Branchini, P., Brenner, Ra, Bruckman, P., Brunet, Jm, Bugge, L., Buran, T., Buschbeck, B., Buschmann, P., Cabrera, S., Caccia, M., Calvi, M., Camporesi, T., Canale, V., Carena, F., Carroll, L., Caso, C., Gimenez, Mvc, Cattai, A., Cavallo, Fr, Chabaud, V., Chapkin, M., Charpentier, P., Checchia, P., Chelkov, Ga, Chierici, R., Chliapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Cieslik, K., Collins, P., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Crawley, Hb, Crennell, D., Crepe, S., Crosetti, G., Maestro, Jc, Czellar, S., Davenport, M., Da Silva, W., Della Ricca, G., Delpierre, P., Demaria, N., Angelis, A., Boer, W., Clercq, C., Lotto, B., Min, A., Leandro de Paula, Dijkstra, H., Di Ciaccio, L., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Dris, M., Duperrin, A., Durand, Jd, Eigen, G., Ekelof, T., Ekspong, G., Ellert, M., Elsing, M., Engel, Jp, Santo, Me, Fanourakis, G., Fassouliotis, D., Fayot, J., Feindt, M., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Fichet, S., Firestone, A., Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, Ag, Fruhwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, En, Gele, D., Geralis, T., Ghodbane, N., Gil, I., Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Caballero, Ig, Gopal, G., Gorn, L., Gouz, Y., Gracco, V., Grahl, J., Graziani, E., Gris, P., Grosdidier, G., Grzelak, K., Guy, J., Haag, C., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Hansen, J., Harris, Fj, Hauler, F., Hedberg, V., Heising, S., Hernandez, Jj, Herquet, P., Herr, H., Hessing, Tl, Heuser, Jm, Higon, E., Holmgren, So, Holt, Pj, Hoorelbeke, S., Houlden, M., Hrubec, J., Huber, M., Huet, K., Hughes, Gj, Hultqvist, K., Jackson, Jn, Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Jeans, D., Johansson, Ek, Jonsson, P., Joram, C., Juillot, P., Jungermann, L., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, Ec, Keranen, R., Kernel, G., Kersevan, Bp, Khokhlov, Y., Khomenko, Ba, Khovanski, Nn, Kiiskinen, A., King, B., Kinvig, A., Kjaer, Nj, Klapp, O., Klein, H., Kluit, P., Kokkinias, P., Kostioukhine, V., Kourkoumelis, C., Kouznetsov, O., Krammer, M., Kriznic, E., Krumstein, Z., Kubinec, P., Kurowska, J., Kurvinen, K., Lamsa, Jw, Lane, Dw, Langefeld, P., Lapin, V., Laugier, Jp, Lauhakangas, R., Leder, G., Ledroit, F., Lefebure, V., Leinonen, L., Leisos, A., Leitner, R., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liebig, W., Liko, D., Lipniacka, A., Lippi, I., Loerstad, B., Loken, Jg, Lopes, Jh, Lopez, Jm, Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., Macnaughton, J., Mahon, Jr, Maio, A., Malek, A., Malmgren, Tgm, Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, Jc, Mariotti, C., Markou, A., Martinez-Rivero, C., Martinez-Vidal, F., Garcia, Smi, Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., Mc Cubbin, M., Mc Kay, R., Mc Nulty, R., Mc Pherson, G., Meroni, C., Meyer, Wt, Migliore, E., Mirabito, L., Mitaroff, Wa, Mjoernmark, U., Moa, T., Moch, M., Moeller, R., Moenig, K., Monge, MR, Moraes, D., Moreau, X., Morettini, P., Morton, G., Mueller, U., Muenich, K., Mulders, M., Mulet-Marquis, C., Muresan, R., Murray, Wj, Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Nassiakou, M., Navarria, Fl, Navas, S., Nawrocki, K., Negri, P., Neufeld, N., Nicolaidou, R., Nielsen, Bs, Niezurawski, P., Nikolenko, M., Nomokonov, V., Nygren, A., Obraztsov, V., Olshevski, Ag, Onofre, A., Orava, R., Orazi, G., Osterberg, K., Ouraou, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, Td, Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Pavel, T., Pegoraro, M., Peralta, L., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, Ht, Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Pol, Me, Polok, G., Poropat, P., Pozdniakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rames, J., Ratoff, Pn, Read, Al, Rebecchi, P., Redaelli, Ng, Regler, M., Rehn, J., Reid, D., Reinhardt, R., Renton, Pb, Resvanis, Lk, Richard, F., Ridky, J., Rinaudo, G., Ripp-Baudot, I., Rohne, O., Romero, A., Ronchese, P., Rosenberg, Ei, Rosinsky, P., Roudeau, P., Rovelli, T., Royon, C., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovsky, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Schwemling, P., Schwering, B., Schwickerath, U., Scuri, F., Seager, P., Sedykh, Y., Seemann, F., Segar, Am, Seibert, N., Sekulin, R., Shellard, Rc, Siebel, M., Simard, L., Simonetto, F., Sisakian, An, Smadja, G., Smirnova, O., Smith, Gr, Solovianov, A., Sopczak, A., Sosnowski, R., Spassov, T., Spiriti, E., Squarcia, S., Stanescu, C., Stanic, S., Stanitzki, M., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Taffard, A., Tchikilev, O., Tegenfeldt, F., Terranova, F., Thomas, J., Timmermans, J., Tinti, N., Tkatchev, Lg, Tobin, M., Todorova, S., Tomaradze, A., Tome, B., Tonazzo, A., Tortora, L., Tortosa, P., Transtromer, G., Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Turluer, Ml, Tyapkin, Ia, Tyapkin, P., Tzamarias, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Dam, P., Den Boeck, W., Eldik, J., Lysebetten, A., Remortel, N., Vulpen, I., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verdier, P., Verlato, M., Vertogradov, Ls, Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopyanov, As, Voulgaris, G., Vrba, V., Wahlen, H., Walck, C., Washbrook, Aj, Weiser, C., Wicke, D., Wickens, Jh, Wilkinson, Gr, Winter, M., Witek, M., Wolf, G., Yi, J., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, Ni, Zintchenko, A., Zoller, P., Zucchelli, Gc, Zumerle, G., Delphi, Collaboration, BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Poropat, Paolo, Vitale, Lorenzo, DELPHI Collaboration, Delphi (IHEF, IoP, FNWI), and UCL - SST/IRMP - Institut de recherche en mathématique et physique
Subjects: Quark, Antiparticle, Particle physics, Physics and Astronomy (miscellaneous), High Energy Physics::Lattice, Hadron, Nuclear Theory, FOS: Physical sciences, 01 natural sciences, Spectral line, DECAYS, Partícules (Física nuclear), High Energy Physics - Experiment, PHYSICS, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, ALGORITHM, Multiplicity (chemistry), 010306 general physics, Nuclear Experiment, Engineering (miscellaneous), DELPHI, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, MULTIPLICITY, ORDER QCD, LARGE ELECTRON POSITRON COLLIDER, Charged particle, Gluon, Baryon, PARTICLE PHYSICS, Física nuclear, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: A sample of 2.2 million hadronic Z decays, selected from the data recorded by the Delphi detector at LEP during 1994-1995 was used for an improved measurement of inclusive distributions of pi+, K+ and p and their antiparticles in gluon and quark jets. The production spectra of the individual identified particles were found to be softer in gluon jets compared to quark jets, with a higher multiplicity in gluon jets as observed for inclusive charged particles. A significant proton enhancement in gluon jets is observed indicating that baryon production proceeds directly from colour objects. The maxima, xi^*, of the xi-distributions for kaons in gluon and quark jets are observed to be different., 24 pages, 12 figures
Published: 2016
Full Text: View/download PDF

2. Search for the Standard Model Higgs boson at LEP in the year 2000

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, Alekseev, GD, Alemany, R, Allmendinger, T, Allport, PP, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anashkin, E, Anassontzis, EG, Andersson, P, Andreazza, A, Andringa, S, Anjos, N, Antilogus, P, Apel, WD, Arnoud, Y, Asman, B, Augustin, JE, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, DY, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, KH, Begalli, M, Behrmann, A, Belokopytov, Y, Belous, K, Benekos, NC, Benvenuti, AC, Berat, C, Berggren, M, Berntzon, L, Bertrand, D, Besancon, M, Besson, N, Bilenky, MS, Bloch, D, Blom, HM, Bol, L, Bonesini, M, Boonekamp, M, Booth, PSL, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bowcock, TJV, Boyko, I, Bozovic, I, Bozzo, M, Bracko, M, Branchini, P, Brenner, RA, Bruckman, P, Brunet, JM, Bugge, L, Buschmann, P, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, MVC, Cattai, A, Cavallo, FR, Chapkin, M, Charpentier, P, Checchia, P, Chelkov, GA, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Costa, M, Crawley, HB, Crennell, D, Croix, J, Crosetti, G, Maestro, JC, Czeller, S, D'Hondt, J, Dalmau, J, Davenport, M, Da Silva, W, Della Ricca, G, Delpierre, P, Demaria, N, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Min, A, De Paula, L, Dijkstra, H, Di Ciaccio, L, Doroba, K, Dracos, M, Drees, J, Dris, M, Eigen, G, Ekelof, T, Ellert, M, Elsing, M, Engel, JP, Santo, ME, Fanourakis, G, Fassouliotis, D, Feindt, M, Fernandez, J, Ferrer, A, Ferrer-Ribas, E, Ferro, F, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Franek, B, Frodesen, AG, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazia, EN, Gele, D, Geralis, T, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez-Ceballos, G, Goncalves, P, Caballero, IG, Gopal, G, Gorn, L, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, FJ, Haug, S, Hauler, F, Hedberg, V, Heising, S, Hernandez, JJ, Herquet, P, Herr, H, Hertz, O, Higon, E, Holmgren, SO, Holt, PJ, Hoorelbeke, S, Houlden, M, Hrubec, J, Hughes, GJ, Hultqvist, K, Jackson, JN, Jacobsson, R, Jalocha, P, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Jeans, D, Johansson, EK, Jonsson, P, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, EC, Keranen, R, Kernel, G, Kersevan, BP, Khomenko, BA, Khovanski, NN, Kiiskinen, A, King, B, Kinvig, A, Kjaer, NJ, Klapp, O, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kucharczyk, M, Kurowska, J, Lamsa, JW, Laugier, JP, Leder, G, Ledroit, F, Leinonen, L, Leisos, A, Leitner, R, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Loken, JG, Lopes, JH, Lopez, JM, Lopez-Femandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J, Mahon, JR, Maio, A, Malek, A, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, JC, Mariotti, C, Markou, A, Martinez-Rivero, C, Garcia, SMI, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, C, Mazzucato, F, Mazzucato, M, Cubbin, MM, Kay, RM, Nulty, RM, Merle, E, Meroni, C, Meyer, WT, Miagkov, A, Migliore, E, Mirabito, L, Mitaroff, WA, Mjoernmark, U, Moa, T, Moch, M, Moenig, K, Monge, MR, Montenegro, J, Moraes, D, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mundim, LM, Murray, WJ, Muryn, B, Myatt, G, Myklebust, T, Nassiakou, M, Navarria, FL, Nawrocki, K, Negri, P, Nemecek, S, Neufeld, N, Nicolaidou, R, Niezurawski, P, Nikolenko, M, Nomokonov, V, Nygren, A, Obraztsov, V, Olshevski, AG, Onofre, A, Orava, R, Osterberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, TD, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Peralta, L, Perepelitsa, V, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, HT, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Poireau, V, Pol, ME, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Read, AL, Rebecchi, P, Redaelli, NG, Regler, M, Rehn, J, Reid, D, Reinhardt, R, Renton, PB, Resvanis, LK, Richard, F, Ridky, J, Rinaudo, G, Ripp-Baudot, I, Romero, A, Ronchese, P, Rosenberg, EI, Rosinsky, P, Roudeau, P, Rovelli, T, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Y, Sadovsky, A, Sajot, G, Salmi, L, Salt, J, Sampsonidis, D, Sannino, M, Savoy-Navarro, A, Schwanda, C, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Sedykh, Y, Segar, AM, Sekulin, R, Sette, G, Shellard, RC, Siebel, M, Simard, L, Simonetto, F, Sisakian, AN, Smadja, G, Smirnov, N, Smirnova, O, Smith, GR, Sokolov, A, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Squarcia, S, Stanescu, C, Stanitzki, M, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Taffard, A, Tchikilev, O, Tegenfeldt, F, Terranova, F, Timmermans, J, Tinti, N, Tkatchev, LG, Tobin, M, Todorova, S, Tome, B, Tonazzo, A, Tortora, L, Tortosa, P, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, ML, Tyapkin, IA, Tyapkin, P, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Vander Velde, C, Van Dam, P, Van den Boeck, W, Van Doninck, WK, Van Eldik, J, Van Lysebetten, A, van Remortel, N, Van Vulpen, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verdier, P, Verlato, M, Vertogradov, LS, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, AS, Voulgaris, G, Vrba, V, Wahlen, H, Washbrook, AJ, Weiser, C, Wicke, D, Wickens, JH, Wilkinson, GR, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, NI, Zintcheneo, A, Zoller, P, Zumerle, G, Zupan, M, Collaboration, DELPHI, 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 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), 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), 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)-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), 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, 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), 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), 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), Goncalves, P, Gonzalez Caballero, I, Gopal, G, Gorn, L, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, F, Haug, S, Hauler, F, Hedberg, V, Heising, S, Hernandez, J, Herquet, P, Herr, H, Hertz, O, Higon, E, Holmgren, S, Holt, P, Hoorelbeke, S, Houlden, M, Hrubec, J, Hughes, G, Hultqvist, K, Jackson, J, Jacobsson, R, Jalocha, P, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Jeans, D, Johansson, E, Jonsson, P, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, E, Keranen, R, Kernel, G, Kersevan, B, Khomenko, B, Khovanski, N, Kiiskinen, A, King, B, Kinvig, A, Kjaer, N, Klapp, O, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kucharczyk, M, Kurowska, J, Lamsa, J, Laugier, J, Leder, G, Ledroit, F, Leinonen, L, Leisos, A, Leitner, R, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Loken, J, Lopes, J, Lopez, J, Lopez-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, Macnaughton, J, Mahon, J, Maio, A, Malek, A, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, J, Mariotti, C, Markou, A, Martinez-Rivero, C, Marti i Garcia, S, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, Mc Cubbin, M, Mc Kay, R, Mc Nulty, R, Merle, E, Meroni, C, Meyer, W, Miagkov, A, Migliore, E, Mirabito, L, Mitaroff, W, Mjoernmark, U, Moa, T, Moch, M, Moenig, K, Monge, M, Montenegro, J, Moraes, D, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mundim, L, Murray, W, Muryn, B, Myatt, G, Myklebust, T, Nassiakou, M, Navarria, F, Nawrocki, K, Negri, P, Nemecek, S, Neufeld, N, Nicolaidou, R, Niezurawski, P, Nikolenko, M, Nomokonov, V, Nygren, A, Obraztsov, V, Olshevski, A, Onofre, A, Orava, R, Osterberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, T, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Peralta, L, Perepelitsa, V, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Poireau, V, Pol, M, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Read, A, Rebecchi, P, Redaelli, N, Regler, M, Rehn, J, Reid, D, Reinhardt, R, Renton, P, Resvanis, L, Richard, F, Ridky, J, Rinaudo, G, Ripp-Baudot, I, Romero, A, Ronchese, P, Rosenberg, E, Rosinsky, P, Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, Alekseev, G, Alemany, R, Allmendinger, T, Allport, P, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anashkin, E, Anassontzis, E, Andersson, P, Andreazza, A, Andringa, S, Anjos, N, Antilogus, P, Apel, W, Arnoud, Y, Åsman, B, Augustin, J, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, D, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, K, Begalli, M, Behrmann, A, Belokopytov, Y, Belous, K, Benekos, N, Benvenuti, A, Berat, C, Berggren, M, Berntzon, L, Bertrand, D, Besancon, M, Besson, N, Bilenky, M, Bloch, D, Blom, H, Bol, L, Bonesini, M, Boonekamp, M, Booth, P, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bowcock, T, Boyko, I, Bozovic, I, Bozzo, M, Bracko, M, Branchini, P, Brenner, R, Bruckman, P, Brunet, J, Bugge, L, Buschmann, P, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Castillo Gimenez, M, Cattai, A, Cavallo, F, Chapkin, M, Charpentier, P, Checchia, P, Chelkov, G, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Costa, M, Crawley, H, Crennell, D, Croix, J, Crosetti, G, Cuevasmaestro, J, Czellar, S, D'Hondt, J, Dalmau, J, Davenport, M, Da Silva, W, Della Ricca, G, Delpierre, P, Demaria, N, de Angelis, A, de Boer, W, de Clercq, C, de Lotto, B, Demin, A, de Paula, L, Dijkstra, H, di Ciaccio, L, Doroba, K, Dracos, M, Drees, J, Dris, M, Eigen, G, Ekelof, T, Ellert, M, Elsing, M, Engel, J, Espirito Santo, M, Fanourakis, G, Fassouliotis, D, Feindt, M, Fernandez, J, Ferrer, A, Ferrer-Ribas, E, Ferro, F, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Franek, B, Frodesen, A, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, E, Gele, D, Geralis, T, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez-Ceballos, G, Roudeau, P, Rovelli, T, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Y, Sadovsky, A, Sajot, G, Salmi, L, Salt, J, Sampsonidis, D, Sannino, M, Savoy-Navarro, A, Schwanda, C, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Sedykh, Y, Segar, A, Sekulin, R, Sette, G, Shellard, R, Siebel, M, Simard, L, Simonetto, F, Sisakian, A, Smadja, G, Smirnov, N, Smirnova, O, Smith, G, Sokolov, A, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Squarcia, S, Stanescu, C, Stanitzki, M, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Taffard, A, Tchikilev, O, Tegenfeldt, F, Terranova, F, Timmermans, J, Tinti, N, Tkatchev, L, Tobin, M, Todorova, S, Tome, B, Tonazzo, A, Tortora, L, Tortosa, P, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, M, Tyapkin, I, Tyapkin, P, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Vander Velde, C, van Dam, P, van den Boeck, W, van Doninck, W, van Eldik, J, van Lysebetten, A, van Remortel, N, van Vulpen, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verdier, P, Verlato, M, Vertogradov, L, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, A, Voulgaris, G, Vrba, V, Wahlen, H, Washbrook, A, Weiser, C, Wicke, D, Wickens, J, Wilkinson, G, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, N, Zintchenko, A, Zoller, P, Zumerle, G, Zupan, M, BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Poropat, Paolo, Vitale, Lorenzo, UCL - SC/PHYS - Département de physique, and Delphi (IHEF, IoP, FNWI)
Subjects: Nuclear and High Energy Physics, Particle physics, FOS: Physical sciences, E(+)E(-) COLLISIONS, ROOT-S=183 GEV, 01 natural sciences, Partícules (Física nuclear), High Energy Physics - Experiment, Standard Model, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Range (statistics), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Limit (mathematics), 010306 general physics, DELPHI, Physics, Luminosity (scattering theory), 010308 nuclear & particles physics, High Energy Physics::Phenomenology, LARGE ELECTRON POSITRON COLLIDER, PARTICLE PHYSICS, Higgs boson, High Energy Physics::Experiment, Física nuclear, Particle Physics - Experiment
Abstract: Searches for the Standard Model Higgs boson have been performed in the data collected by the DELPHI experiment at LEP in the year 2000 at centre-of-mass energies between 200 and 209 GeV corresponding to a total integrated luminosity of 224 pb^{-1}. No evidence for a Higgs signal is observed in the kinematically accessible mass range, and a 95% CL lower mass limit of 114.3 GeV/c^2 is set, to be compared with an expected median limit of 113.5 GeV/c^2 for these data., Comment: 19 pages, 9 figures
Published: 2016
Full Text: View/download PDF

3. A study of the reaction ${e^+ e^- \rightarrow \mu^+ \mu^- \gamma_{\sc ISR}}$ at LEP and search for new physics at annihilation energies near 80 GeV

Author: Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, Gd, Alemany, R, Allport, Pp, Almehed, S, Amaldi, U, Amato, S, Andersson, P, Andreazza, A, Antilogus, P, Apel, Wd, Asman, B, Augustin, Je, Augustinus, A, Baillon, P, Bambade, P, Barao, F, Barbi, M, Barbiellini, G, Bardin, Dy, Barker, G, Baroncelli, A, Barring, O, Bates, Mj, Battaglia, M, Baubillier, M, Baudot, J, Becks, Kh, Begalli, M, Beilliere, P, Belokopytov, Y, Belous, K, Benvenuti, Ac, Berggren, M, Bertini, D, Bertrand, D, Besancon, M, Bianchi, F, Bigi, M, Bilenky, Ms, Billoir, P, Bizouard, Ma, Bloch, D, Blume, M, Bonesini, M, Bonivento, W, Booth, Psl, Borgland, Aw, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, Tjv, Bozovic, I, Bozzo, M, Branchini, P, Brand, Kd, Brenke, T, Brenner, Ra, Bricman, C, Brown, Rca, Bruckman, P, Brunet, Jm, Bugge, L, Buran, T, Burgsmueller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Rozas, Ajc, Camporesi, T, Canale, V, Canepa, M, Cao, F, Carena, F, Carroll, L, Caso, C, Gimenez, Mvc, Cattai, A, Cavallo, Fr, Chabaud, V, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, Ga, Chen, M, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cindro, V, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, Jh, Crawley, Hb, Crennell, D, Crosetti, G, Maestro, Jc, Czellar, S, Dahm, J, Dalmagne, B, Dam, M, Damgaard, G, Dauncey, Pd, Davenport, M, Dasilva, W, Deghorain, A, Dellaricca, G, Delpierre, P, Demaria, N, Deangelis, A, Deboer, W, Debrabandere, S, Declercq, C, Delavaissiere, C, DE LOTTO, Barbara, Demin, A, Depaula, L, Dijkstra, K, Diciaccio, L, Didiodato, A, Djannati, A, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Drees, Ka, Dris, M, Durand, Jd, Edsall, D, Ehret, R, Eigen, G, Ekelof, T, Ekspong, G, Elsing, M, Engel, Jp, Erzen, B, Santo, Me, Falk, E, Fanourakis, G, Fassouliotis, D, Feindt, M, Fenyuk, A, Ferrari, P, Ferrer, A, Fichet, S, Filippas, Ta, Firestone, A, Fischer, Pa, Foeth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B, Frodesen, Ag, Fruhwirth, R, Fuldaquenzer, F, Fuster, J, Galloni, A, Gamba, D, Gandelman, M, Garcia, C, Garcia, J, Gaspar, D, Gasparini, U, Gavillet, P, Gazis, En, Gele, D, Gerber, Jp, Gerdyukov, L, Gokieli, R, Golob, B, Goncalves, P, Gopal, G, Gorn, L, Gorski, M, Gouz, Y, Gracco, V, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Gumenyuk, S, Gunther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Harris, Fj, Hedberg, V, Hernandez, Jj, Herquet, P, Herr, H, Hessing, Tl, Heuser, Jm, Higon, E, Hilke, Hj, Holmgren, So, Holt, Pj, Holthuizen, D, Hoorelbeke, S, Houlden, M, Hrubec, J, Huet, K, Hultqvist, K, Jackson, Jn, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jeanmarie, B, Johansson, Ek, Jonsson, L, Jonsson, P, Joram, C, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Katsanevas, S, Katsoufis, Ec, Keranen, R, Khokhlov, Y, Khomenko, Ba, Khovanski, Nn, King, B, Kjaer, Nj, Klapp, O, Klein, H, Kluit, P, Knoblauch, D, Kokkinias, P, Koratzinos, M, Korcyl, K, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kreuter, C, Kronkvist, L, Krumstein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K, Lacasta, C, Laktineh, I, Lamsa, Jw, Lanceri, L, Lane, Dw, Langefeld, P, Laugier, Jp, Lauhakangas, R, Leder, G, Ledroit, F, Lefebure, V, Legan, Ck, Leisos, A, Leitner, R, Lemonne, J, Lenzen, G, Lepeltier, V, Lesiak, T, Libby, J, Liko, D, Lipniacka, A, Lippi, I, Loerstad, B, Loken, Jg, Lopez, Jm, Loukas, D, Lutz, P, Lyons, L, Maehlum, G, Mahon, Jr, Maio, A, Malmgren, Tgm, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, Jc, Mariotti, C, Markou, A, Martinezrivero, C, Martinezvidal, F, Garcia, Smi, Masik, J, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, M, Mccubbin, M, Mckay, R, Mcnulty, R, Medbo, J, Meroni, C, Meyer, S, Meyer, Wt, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Wa, Mjoernmark, U, Moa, T, Moeller, R, Moenig, K, Monge, Mr, Morettini, P, Mueller, H, Muenich, K, Mulders, M, Mundim, Lm, Murray, Wj, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Navarria, Fl, Navas, S, Nawrocki, K, Negri, P, Nemecek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, Bs, Nieuwenhuizen, M, Nikolaenko, V, Nikolenko, M, Niss, P, Nomerotski, A, Normand, A, Oberschultebeckmann, W, Obraztsov, V, Olshevski, Ag, Onofre, A, Orava, R, Orazi, G, Osterberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pain, R, Palka, H, Papadopoulou, Td, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, Ht, Piana, D, Pierre, F, Pimenta, M, Podobnik, T, Podobrin, O, Pol, Me, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Regler, M, Radojicic, D, Ragazzi, S, Rahmani, H, Ratoff, Pn, Read, Al, Reale, M, Rebecchi, P, Redaelli, Ng, Reid, D, Reinhardt, R, Renton, Pb, Resvanis, Lk, Richard, F, Richardson, J, Ridky, J, Rinaudo, G, Rohne, O, Romero, A, Ronchese, P, Roos, L, Rosenberg, Ei, Roudeau, P, Rovelli, T, Ruhlmannkleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Y, Sadovsky, A, Sahr, O, Sajot, G, Salt, J, Sannino, M, Schneider, H, Schwickerath, U, Schyns, Mae, Sciolla, G, Scuri, Fabrizio, Seager, P, Sedykh, Y, Segar, Am, Seitz, A, Sekulin, R, Serbelloni, L, Shellard, Rc, Siegrist, P, Silvestre, R, Simonetto, F, Sisakian, An, Sitar, B, Skaali, Tb, Smadja, G, Smirnov, N, Smirnova, O, Smith, Gr, Solovianov, O, Sosnowski, R, Souzasantos, 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, Tavernet, Jp, Tchikilev, O, Tegenfeldt, F, Terranova, F, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, Lg, Todorov, T, Todorova, S, Toet, Dz, Tomaradze, A, Tome, B, Tonazzo, A, Tortora, L, Transtromer, G, Treille, D, Tristram, G, Trombini, A, Troncon, C, Tsirou, A, Turluer, Ml, Tyapkin, Ia, Tyndel, M, Tzamarias, S, Ueberschaer, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Vandervelde, C, Vanapeldoorn, Gw, Vandam, P, Vandoninck, Wk, Vaneldik, J, Vanlysebetten, A, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verlato, M, Vertogradov, Ls, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, As, Vrba, V, Wahlen, H, Walck, C, Weilhammer, P, Weiser, C, Wetherell, Am, Wicke, D, Wickens, Jh, Wielers, M, Wilkinson, Gr, Williams, Wsc, Winter, M, Witek, M, Wlodek, T, Yi, J, Yip, K, Yushchenko, O, Zach, F, Zaitsev, A, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, Ni, Zucchelli, Gc, 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), 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), and LEP (IHEF, IoP, FNWI)
Subjects: Physics, Particle physics, Annihilation, Photon, Muon, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Physics beyond the Standard Model, Electron–positron annihilation, 01 natural sciences, Helicity, Standard Model, Nuclear physics, 0103 physical sciences, Large Electron–Positron Collider, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Particle Physics - Experiment
Abstract: A study of the channel $e^{+}e^{-}~\rightarrow~\mu^{+}\mu^{-}\gamma_{\ sc ISR}$, where $\gamma_{\sc ISR}$ is an initial state radiation photon, is presented using data collected by the DELPHI experiment from 1991 to 1994. The total cross-section at effective annihilation energies ($\sqrt{s'}$) below the $Z^0$ peak is obtained by using the events with relatively hard initial state radiative photon(s) ($E_{\gamma}~ ~$~1~GeV). The differential cross-section as a function of the muon polar production angle is also determined in order to extract t s alhe forward-backward asymmetries for the reaction $e^+ e^- \rightarrow \mu^+ \mu^-$ at energies $\sqrt{s'}$ between 20 and 87~GeV. The ratio of the helicity cross-sections $\frac{\sigma_{LL}+\sigma_{RR}}{\sigma_{RL}+\sigma_{LR}}$, where the two subscripts stand for the helicities of the incoming $e^-$ and outgoing $\mu^-$ respectively, is extracted from the differential cross-sections in order to test the Standard Model and to look for new physics near 80 GeV. No deviations from the Standard Model were found.
Published: 1997
Full Text: View/download PDF

4. Charged particle multiplicity distributions for fixed number of jets inZ 0 hadronic decays

Author: Abreu, P., Adam, W., Adye, T., Agasi, E., Aleseev, Gd, Allen, P., Almehed, S., Alvsvaag, Sj, Amaldi, U., Anassontzis, Eg, Andreazza, A., Antilogus, P., Apel, Wd, Apsimon, Rj, Asman, B., Augustin, Je, Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barate, R., Barbiellini, G., Bardin, Dy, Baroncelli, A., Barring, O., Barrio, Ja, Bartl, W., Bates, Mj, Battaglia, M., Baubillier, M., Becks, Kh, Beeston, Cj, Begalli, M., Beilliere, P., Belokopytov, Y., Beltran, P., Benedic, D., Berrgren, M., Bertrand, D., Bianchi, F., Bilenky, Ms, Billoir, P., Bjarne, J., Bloch, D., Blyth, S., Bocci, V., Bogolubov, Pn, Bolognese, T., Bonesini, M., Bonivento, W., Booth, Psl, Borgeaud, P., Borisov, G., Borner, H., Bosio, C., Bostjancic, B., Bosworth, S., Botner, O., Bouquet, B., Bourdarios, C., Bowcock, Tjv, Bozzo, M., Braibant, S., Branchini, P., Brand, Kd, Brenner, Ra, Briand, H., Bricman, C., Brown, Rca, Brummer, N., Brunet, Jm, Bugge, L., Buran, T., Burmeister, H., Buytaert, Jama, Caccia, M., Calvi, M., Rozas, Ajc, Camporesi, T., Canale, V., Cao, F., Carena, F., Carroll, L., Caso, C., Castelli, E., Castillo, Mv, Gimenez, Mvc, Cattai, A., Cavallo, Fr, Cerrito, L., Chabaud, V., Chan, A., Charpentier, P., Chaussard, L., Chauveau, J., Checchia, P., Chelkov, Ga, Chevalier, L., Chliapnikov, P., Chorowicz, V., Chrin, Jtm, Cirio, R., Clara, Mp, Collins, P., Contreras, Jl, Contri, R., Cortina, E., Cosme, G., Couchot, F., Crawley, Hb, Crennell, D., Crosetti, G., Crozon, M., Maestro, Jc, Czellar, S., Dagoret, S., Dahljensen, E., Dalmagne, B., Dam, M., Damgaard, G., Darbo, G., Daubie, E., Daum, A., Dauncey, Pd, Davenport, M., David, P., Dasilva, W., Defoix, C., Delikaris, D., Dellariccia, Ba, Delorme, S., Delpierre, P., Demaria, N., Deangelis, A., Debeer, M., Deboek, H., Deboer, W., Declercq, C., Laso, Mdmd, 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., Eek, Lo, Eerola, Pam, Ehret, R., Ekelof, T., Ekspong, G., Peisert, Ae, Engel, Jp, Fassouliotis, D., Fearnley, Ta, Feindt, M., Fenyuk, A., Alonso, Mf, Ferrer, A., Filippas, Ta, Firestone, A., Foeth, H., Fokitis, E., Fontanelli, F., Forbes, Kaj, Franek, B., Frenkiel, P., Fries, Dc, Frodesen, Ag, Fruhwirth, R., Fuldaquenzer, F., Furnival, K., Furstenau, H., Fuster, J., Galeazzi, G., Gamba, D., Carcia, C., Garcia, J., Gaspar, C., Gasparini, U., Gavillet, P., Gazis, En, Gazis, Jp, Gerber, Jp, Giacomelli, P., Gokieli, R., Golob, B., Golovatyuk, Vm, Cadenas, Jjgy, 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., Demoncenault, Gh, Hao, W., Harris, Fj, Henkes, T., Hernandez, Jj, Herquet, P., Herr, H., Hessing, Tl, Hietanen, I., Higgins, Co, Higon, E., Hilke, Hj, Hodgson, Sd, Hofmokl, T., Holmes, R., Holmgren, So, Holthuizen, D., Honore, Pf, Hooper, Je, Houlden, M., Hrubec, J., Hulth, Po, Hultqvist, K., Ioannou, P., Isenhower, D., Iversen, Ps, Jackson, Jn, Jalocha, P., Jarlskog, G., Jarry, P., Jeanmarie, B., Johansson, Ek, Johnson, D., Jonker, M., Lonsson, L., Juillot, P., Kalkanis, G., Kalmus, G., Kapusta, F., Karlsson, M., Karvelas, E., Katsanevas, S., Katsoufis, Ec, Karanen, R., Kesteman, J., Khomenko, Ba, Khovanski, Nn, King, B., Kjaer, Nj, Klein, H., Klempt, W., Klovning, A., Kluit, P., Kochmehrin, A., Koehne, Jh, Koene, B., Kokkinias, P., Kopf, M., Korcyl, K., Korytov, Av, Kostioukhine, V., Kourkoumelis, C., Kouznetsov, O., Kramer, Ph, Krolikowski, J., Kronkvist, I., Krstic, J., Krueneimarquis, U., Krupinski, W., Kulka, K., Kurvinen, K., Lacasta, C., Lambropoulos, C., Lamsa, Jw, Lanceri, L., Lapin, V., Laugier, Jp, Lauhakangas, R., Leder, G., Ledroit, F., Leitner, R., Lemoigne, Y., Lemonne, J., Lenzen, G., Lepeltier, V., Levy, Jm, Lieb, E., Liko, D., Lillethun, E., Lindgren, J., Lindner, R., Lipniacka, A., Lippi, I., Loerstad, B., Lokajicek, M., Loken, Jg, Lopezfernandez, A., Aguera, Mal, Los, M., Loukas, D., Lozano, Jj, Lutz, P., Lyons, L., Maehlum, G., Maillard, I., Maltezos, A., Mandl, F., Marco, J., Margoni, M., Marin, Jc, 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, Wt, Michelotto, M., Mikulec, I., Mitaroff, Wa, Mitselmakher, Gv, Mjoernmark, U., Moa, T., Moeller, R., Moenig, K., MONGE, MR, Morettini, P., Mueller, H., Murray, Wj, Muryn, B., Myatt, G., Naraghi, F., Navarria, Fl, Negri, P., Nielsen, Bs, Nijjhar, B., Nikolaenko, V., Nilsen, Pes, Niss, P., Obraztsov, V., Olshevski, Ag, Orava, R., Ostankov, A., Osterberg, K., Ouraou, A., Paganoni, M., Pain, R., Palka, H., Papadopoulou, Td, Pape, L., Passeri, A., Pegoraro, M., Pennanen, J., Perevozchikov, V., Pernicka, M., Perrotta, A., Petrolini, A., Pettersen, Te, Pierre, F., Pimenta, M., Pingot, O., Pol, Me, Polok, G., Poropat, P., Privitera, P., Pullia, A., Radojicic, D., Ragazzi, S., Ratoff, Pn, Read, Al, Redaelli, Ng, Regler, M., Reid, D., Renton, Pb, Resvanis, Lk, Richard, F., Richardson, M., Ridky, J., Rinaudo, G., Roditi, I., Romero, A., Roncagliolo, I., Ronchese, P., Ronnqvist, C., Rosenberg, Ei, 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, Mae, Sciolla, G., Scuri, F., Segar, Am, Sekulin, R., Sessa, M., Sette, G., Seufert, R., Shellard, Rc, Siccama, I., Siegrist, P., Simonetti, S., Simonetto, F., Sisakian, An, Skaali, Tb, Skjevling, G., Smadja, G., Smith, Gr, Sosnowski, R., Spassoff, Ts, 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, Ge, Tilquin, A., Timmermans, J., Timofeev, Vg, Tkatchev, Lg, Todorov, T., Toet, Dz, Toker, O., Torassa, E., Tortora, L., Trainor, Mt, Treille, D., Trevisan, U., Trischuk, W., Tristram, G., Troncon, C., Tsirou, A., Tsyganov, En, Turala, M., Turluer, Ml, Tuuva, T., Tyapkin, Ia, Tyndel, M., Tzamarias, S., Ueberschaer, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Ferrer, Jav, Vandervelde, C., Vanapeldoorn, Gw, Vandam, P., Vandoninck, Wk, Varela, J., Pedro Vaz, Vegni, G., Ventura, L., Venus, W., Verbeure, F., Vertogradov, Ls, Vilanova, D., Vitale, L., Vlasov, E., Vodopyanov, As, 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, Am, Wickens, Jh, Wikne, J., Wilkinson, Gr, Williams, Wsc, 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, Ni, Zito, M., Zuberi, R., Funchal, Rz, 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), 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: Quark, COLLISIONS, Particle physics, E+E ANNIHILATION, Physics and Astronomy (miscellaneous), LUND MONTE-CARLO, Astrophysics::High Energy Astrophysical Phenomena, Hadron, PETRA ENERGIES, INTERVALS, 01 natural sciences, 250 GEV/C, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Rapidity, 010306 general physics, Parton shower, RAPIDITY DEPENDENCE, Engineering (miscellaneous), Physics, 010308 nuclear & particles physics, QUARK, Multiplicity (mathematics), GLUON JETS, Charged particle, Gluon, FRAGMENTATION, Physique des particules élémentaires, High Energy Physics::Experiment, Particle Physics - Experiment, Color charge
Abstract: The multiplicity distributions of charged particles in full phase space and in restricted rapidity intervals for events with a fixed number of jets measured by the DELPHI detector are presented. The data are well reproduced by the Lund Parton Shower model and can also be well described by fitted negative binomial distributions. The properties of these distributions in terms of the clan model are discussed. In symmetric 3-jet events the candidate gluon jet is found not to be significantly different in average multiplicity than the mean of the other two jets, thus supporting previous results of the HRS and OPAL experiments. Similar results hold for events generated according to the LUND PS and to the HERWIG models, when the jets are defined by the JADE jet finding algorithm. The method seems to be insensitive for measuring the color charge ratio between gluons and quarks. © 1992 Springer-Verlag., 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 1992
Full Text: View/download PDF

5. Measurement of Vcb from the decay process B̄0 → D*+ℓ-v̄

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, Alekseev, GD, Alemany, R, Allmendinger, T, Allport, PP, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anassontzis, EG, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, WD, Arnoud, Y, Asman, B, Augustin, JE, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, DY, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, KH, Begalli, M, Behrmann, A, Beilliere, P, Belokopytov, Y, Belous, K, Benekos, NC, Benvenuti, AC, Berat, C, Berggren, M, Berntzon, L, Bertrand, D, Besancon, M, Bilenky, MS, Bizouard, MA, Bloch, D, Blom, HM, Bonesini, M, Boonekamp, M, Booth, PSL, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, TJV, Boyko, I, Bozovic, I, Bozzo, M, Bracko, M, Branchini, P, Brenner, RA, Bruckman, P, Brunet, JM, Bugge, L, Buran, T, Buschbeck, B, Buschmann, P, Cabrera, S, Caccia, M, CALVI, MARTA, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, MVC, Cattai, A, Cavallo, FR, Chapkin, M, Charpentier, P, Checchia, P, Chelkov, GA, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Costa, M, Crawley, HB, Crennell, D, Crepe, S, Crosetti, G, Maestro, JC, Czellar, S, D'Hondt, J, Dalmau, J, Davenport, M, Da Silva, W, Della Ricca, G, Delpierre, P, Demaria, N, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Min, A, De Paula, L, Dijkstra, H, Di Ciaccio, L, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Duperrin, A, Eigen, G, Ekelof, T, Ellert, M, Elsing, M, Engel, JP, Santo, ME, Fanourakis, G, Fassouliotis, D, Feindt, M, Fernandez, J, Ferrer, A, Ferrer Ribas, E, Ferro, F, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, AG, Fruhwirth, R, Fulda Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Caspar, M, Gasparini, U, Gavillet, P, Gazis, EN, Gele, D, Geralis, T, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez Ceballoso, G, Goncalves, P, Caballero, IG, Gopal, G, Gorn, L, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Gris, P, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, FJ, Hauler, F, Hedberg, V, Heising, S, Hernandez, JJ, Herquet, P, Herr, H, Higon, E, Holmgren, SO, Holt, PJ, Hoorelbeke, S, Houlden, M, Hrubec, J, Huber, M, Hughes, GJ, Hultqvist, K, Jackson, JN, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean Marie, B, Jeans, D, Johansson, EK, Jonsson, P, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, EC, Keranen, R, Kernel, G, Kersevan, BP, Khokhlov, Y, Khomenko, BA, Khovanski, NN, Kiiskinen, A, King, B, Kinvig, A, Kjaer, NJ, Klapp, O, Klein, H, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kurowska, J, Kurvinen, K, Lamsa, JW, Lane, DW, Lapin, V, Laugier, JP, Lauhakangas, R, Leder, G, Ledroit, F, Leinonen, L, Leisos, A, Leitner, R, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Loerstad, B, Loken, JG, Lopes, JH, Lopez, JM, Lopez Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J, Mahon, JR, Maio, A, Malek, A, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, JC, Mariotti, C, Markou, A, Martinez Rivero, C, Garcia, SMI, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, Mc Cubbin, M, Mc Kay, R, Mc Nulty, R, Mc Pherson, G, Meroni, C, Meyer, WT, Miagkov, A, Migliore, E, Mirabito, L, Mitaroff, WA, Mjoernmark, U, Moa, T, Moch, M, Moeller, R, Moenig, K, Monge, MR, Moraes, D, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mulet Marquis, C, Muresan, R, Murray, WJ, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Nassiakou, M, Navarria, FL, Nawrocki, K, NEGRI, PIETRO, Neufeld, N, Nicolaidou, R, Nielsen, BS, Niezurawski, P, Nikolenko, M, Nomokonov, V, Nygren, A, Obraztsov, V, Olshevski, AG, Onofre, A, Orava, R, Orazi, G, Osterberg, K, Ouraou, A, Oyanguren, A, PAGANONI, MARCO, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, TD, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pavel, T, Pegoraro, M, Peralta, L, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, HT, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Poireau, V, Pol, ME, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, PULLIA, ANTONINO, Radojicic, D, RAGAZZI, STEFANO, Rahmani, H, Rames, J, Ratoff, PN, Read, AL, Rebecchi, P, Redaelli, NC, Regler, M, Rehn, J, Reid, D, Reinertsen, P, Reinhardt, R, Renton, PB, Resvanis, LK, Richard, F, Ridky, J, Rinaudo, G, Ripp Baudot, I, Rohne, O, Romero, A, Ronchese, P, Rosenberg, EI, 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, Savoy Navarro, A, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Seager, P, Sedykh, Y, Segar, AM, Seibert, N, Sekulin, R, Sette, G, Shellard, RC, Siebel, M, Simard, L, Simonetto, F, Sisakian, AN, Smadja, G, Smirnova, O, Smith, GR, Solovianov, O, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Squarcia, S, Stanescu, C, Stanitzki, M, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Taffard, A, Tegenfeldt, F, Terranova, F, Timmermans, J, Tinti, N, Tkatchev, LG, Tobin, M, Todorova, S, Tome, B, Tonazzo, A, Tortora, L, Tortosa, P, Transtromer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, ML, Tyapkin, IA, Tyapkin, P, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van Dam, P, Van den Boeck, W, Van Doninck, WK, Van Eldik, J, Van Lysebetten, A, van Remortel, N, Van Vulpen, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verdier, P, Verlato, M, Vertogradov, LS, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, AS, Voulgaris, G, Vrba, V, Wahlen, H, Walck, C, Washbrook, AJ, Weiser, C, Wicke, D, Wickens, JH, Wilkinson, GR, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, NI, Zintchenko, A, Zoller, P, Zumerle, G, Zupan, M., Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, Alekseev, G, Alemany, R, Allmendinger, T, Allport, P, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anassontzis, E, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, W, Arnoud, Y, Asman, B, Augustin, J, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, D, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, K, Begalli, M, Behrmann, A, Beilliere, P, Belokopytov, Y, Belous, K, Benekos, N, Benvenuti, A, Berat, C, Berggren, M, Berntzon, L, Bertrand, D, Besancon, M, Bilenky, M, Bizouard, M, Bloch, D, Blom, H, Bonesini, M, Boonekamp, M, Booth, P, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T, Boyko, I, Bozovic, I, Bozzo, M, Bracko, M, Branchini, P, Brenner, R, Bruckman, P, Brunet, J, Bugge, L, Buran, T, Buschbeck, B, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, M, Cattai, A, Cavallo, F, Chapkin, M, Charpentier, P, Checchia, P, Chelkov, G, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Costa, M, Crawley, H, Crennell, D, Crepe, S, Crosetti, G, Maestro, J, Czellar, S, D'Hondt, J, Dalmau, J, Davenport, M, Da Silva, W, Della Ricca, G, Delpierre, P, Demaria, N, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Min, A, De Paula, L, Dijkstra, H, Di Ciaccio, L, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Duperrin, A, Eigen, G, Ekelof, T, Ellert, M, Elsing, M, Engel, J, Santo, M, Fanourakis, G, Fassouliotis, D, Feindt, M, Fernandez, J, Ferrer, A, Ferrer Ribas, E, Ferro, F, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, A, Fruhwirth, R, Fulda Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Caspar, M, Gasparini, U, Gavillet, P, Gazis, E, Gele, D, Geralis, T, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez Ceballoso, G, Goncalves, P, Caballero, I, Gopal, G, Gorn, L, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Gris, P, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, F, Hauler, F, Hedberg, V, Heising, S, Hernandez, J, Herquet, P, Herr, H, Higon, E, Holmgren, S, Holt, P, Hoorelbeke, S, Houlden, M, Hrubec, J, Huber, M, Hughes, G, Hultqvist, K, Jackson, J, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean Marie, B, Jeans, D, Johansson, E, Jonsson, P, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, E, Keranen, R, Kernel, G, Kersevan, B, Khokhlov, Y, Khomenko, B, Khovanski, N, Kiiskinen, A, King, B, Kinvig, A, Kjaer, N, Klapp, O, Klein, H, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kurowska, J, Kurvinen, K, Lamsa, J, Lane, D, Lapin, V, Laugier, J, Lauhakangas, R, Leder, G, Ledroit, F, Leinonen, L, Leisos, A, Leitner, R, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Loerstad, B, Loken, J, Lopes, J, Lopez, J, Lopez Fernandez, R, Loukas, D, Lutz, P, Lyons, L, Macnaughton, J, Mahon, J, Maio, A, Malek, A, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, J, Mariotti, C, Markou, A, Martinez Rivero, C, Garcia, S, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, Mc Cubbin, M, Mc Kay, R, Mc Nulty, R, Mc Pherson, G, Meroni, C, Meyer, W, Miagkov, A, Migliore, E, Mirabito, L, Mitaroff, W, Mjoernmark, U, Moa, T, Moch, M, Moeller, R, Moenig, K, Monge, M, Moraes, D, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mulet Marquis, C, Muresan, R, Murray, W, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Nassiakou, M, Navarria, F, Nawrocki, K, Negri, P, Neufeld, N, Nicolaidou, R, Nielsen, B, Niezurawski, P, Nikolenko, M, Nomokonov, V, Nygren, A, Obraztsov, V, Olshevski, A, Onofre, A, Orava, R, Orazi, G, Osterberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, T, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pavel, T, Pegoraro, M, Peralta, L, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Poireau, V, 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, Rehn, J, Reid, D, Reinertsen, P, Reinhardt, R, Renton, P, Resvanis, L, Richard, F, Ridky, J, Rinaudo, G, Ripp Baudot, I, 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, Savoy Navarro, A, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Seager, P, Sedykh, Y, Segar, A, Seibert, N, Sekulin, R, Sette, G, Shellard, R, Siebel, M, Simard, L, Simonetto, F, Sisakian, A, Smadja, G, Smirnova, O, Smith, G, Solovianov, O, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Squarcia, S, Stanescu, C, Stanitzki, M, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Taffard, A, Tegenfeldt, F, Terranova, F, Timmermans, J, Tinti, N, Tkatchev, L, Tobin, M, Todorova, S, Tome, B, Tonazzo, A, Tortora, L, Tortosa, P, Transtromer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, M, Tyapkin, I, Tyapkin, P, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van Dam, P, Van den Boeck, W, Van Doninck, W, Van Eldik, J, Van Lysebetten, A, van Remortel, N, Van Vulpen, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verdier, P, Verlato, M, Vertogradov, L, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, A, Voulgaris, G, Vrba, V, Wahlen, H, Walck, C, Washbrook, A, Weiser, C, Wicke, D, Wickens, J, Wilkinson, G, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, N, Zintchenko, A, Zoller, P, Zumerle, G, and Zupan, M
Subjects: LEP
Abstract: A new precise measurement of |Vcb| and of the branching ratio BR(B̄0 → D*+ℓ-v̄ℓ) has been performed using a sample of about 5000 semileptonic decays B̄0 → D*+ℓ-v̄ℓ, selected by the DELPHI detector at LEP I by tagging the soft pion from D*+ → D0π+. The results are: Vcb = (39.0 ± 1.5 (stat.)-2.6+2.5 (syst. exp.) ± 1.3 (syst. th.)) × 10-3, BR(B̄0 → D*+ℓ-v̄ℓ) = (4.70 ± 0.13 (stat.)-0.31+0.36 (syst. exp.))%. The analytic dependencies of the differential cross-section and of the Isgur-Wise form factor as functions of the variable w = vB0 · vD* have also been obtained by unfolding the experimental resolution. © 2001 Published by Elsevier Science B.V.
Published: 2001

6. Measurement of the ZZ cross-section in e(+)e(-) interactions at 183-189 GeV

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, Alderweireld, T, Alekseev, GD, Alemany, R, Allmendinger, T, Allport, PP, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anassontzis, EG, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, WD, Arnoud, Y, Asman, B, Augustin, JE, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, DY, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, KH, Begalli, M, Behrmann, A, Beilliere, P, Belokopytov, Y, Benekos, NC, Benvenuti, AC, Berat, C, Berggren, M, Berntzon, L, Bertrand, D, Besancon, M, Bilenky, MS, Bizouard, MA, Bloch, D, Blom, HM, Bonesini, M, Boonekamp, M, Booth, PSL, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, TJV, Boyko, I, Bozovic, I, Bozzo, M, Bracko, M, Branchini, P, Brenner, RA, Bruckman, P, Brunet, JM, Bugge, L, Buran, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, MVC, Cattai, A, Cavallo, FR, Charpentier, P, Checchia, P, Chelkov, GA, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Costa, M, Crawley, HB, Crennell, D, Croix, J, Maestro, JC, Czellar, S, D'Hondt, J, Dalmau, J, Davenport, M, Da Silva, W, Della Ricca, G, Delpierre, P, Demaria, N, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Min, A, De Paula, L, Dijkstra, H, Di Ciaccio, L, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Eigen, G, Ekelof, T, Ellert, M, Elsing, M, Engel, JP, Santo, ME, Fanourakis, G, Fassouliotis, D, Feindt, M, Fernandez, J, Ferrer, A, Ferrer-Ribas, E, Ferro, F, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, AG, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, EN, Gele, D, Geralis, T, Gerdyukov, L, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez-Ceballos, G, Goncalves, P, Caballero, IG, Gopal, G, Gorn, L, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Gris, P, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, FJ, Haug, S, Hauler, F, Hedberg, V, Heising, S, Hernandez, JJ, Herquet, P, Herr, H, Higon, E, Holmgren, SO, Holt, PJ, Hoorelbeke, S, Houlden, M, Hrubec, J, Huber, M, Hughes, GJ, Hultqvist, K, Jackson, JN, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Jeans, D, Johansson, EK, Jonsson, P, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, EC, Keranen, R, Kernel, G, Kersevan, BP, Khokhlov, Y, Khomenko, BA, Khovanski, NN, Kiiskinen, A, King, B, Kinvig, A, Kjaer, NJ, Klapp, O, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kurowska, J, Kurvinen, K, Lamsa, JW, Lane, DW, Laugier, JP, Lauhakangas, R, Leder, G, Ledroit, F, Leinonen, L, Leisos, A, Leitner, R, Lemonne, J, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Loerstad, B, Loken, JG, Lopes, JH, Lopez, JM, Lopez-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J, Mahon, JR, Maio, A, Malek, A, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, JC, Mariotti, C, Markou, A, Martinez-Rivero, C, Garcia, SMI, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, McCubbin, M, McKay, R, McNulty, R, McPherson, G, Merle, E, Meroni, C, Meyer, WT, Migliore, E, Mirabito, L, Mitaroff, WA, Mjoernmark, U, Moa, T, Moch, M, Moeller, R, Moenig, K, Monge, MR, Montenegro, J, Moraes, D, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mulet-Marquis, C, Mundim, LM, Muresan, R, Murray, WJ, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Nassiakou, M, Navarria, FL, Nawrocki, K, Negri, P, Neufeld, N, Nicolaidou, R, Nielsen, BS, Niezurawski, P, Nikolenko, M, Nomokonov, V, Nygren, A, Obraztsov, V, Olshevski, AG, Onofre, A, Orava, R, Osterberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, TD, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pavel, T, Pegoraro, M, Peralta, L, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, HT, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Poireau, V, Pol, ME, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, PN, Read, AL, Rebecchi, P, Redaelli, NG, Regler, M, Rehn, J, Reid, D, Reinertsen, P, Reinhardt, R, Renton, PB, Resvanis, LK, Richard, F, Ridky, J, Rinaudo, G, Ripp-Baudot, I, Romero, A, Ronchese, P, Rosenberg, EI, 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, Savoy-Navarro, A, Schwanda, C, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Seager, P, Sedykh, Y, Segar, AM, Seibert, N, Sekulin, R, Sette, G, Shellard, RC, Siebel, M, Simard, L, Simonetto, F, Sisakian, AN, Smadja, G, Smirnov, N, Smirnova, O, Smith, GR, Sokolov, A, Solovianov, O, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Squarcia, S, Stanescu, C, Stanitzki, M, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Taffard, A, Tegenfeldt, F, Terranova, F, Timmermans, J, Tinti, N, Tkatchev, LG, Tobin, M, Todorova, S, Tome, B, Tonazzo, A, Tortora, L, Tortosa, P, Transtromer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, ML, Tyapkin, IA, Tyapkin, P, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van Dam, P, Van den Boeck, W, Van Doninck, WK, Van Eldik, J, Van Lysebetten, A, van Remortel, N, Van Vulpen, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verdier, P, Verlato, M, Vertogradov, LS, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, AS, Voulgaris, G, Vrba, V, Wahlen, H, Washbrook, AJ, Weiser, C, Wicke, D, Wickens, JH, Wilkinson, GR, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, NI, Zintchenko, A, Zoller, P, Zumerle, G, Zupan, M, Collaboration, DELPHI, 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 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), 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), 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)-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), 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), 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), 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), Delphi (IHEF, IoP, FNWI), Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, Alderweireld, T, Alekseev, G, Alemany, R, Allmendinger, T, Allport, P, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anassontzis, E, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, W, Arnoud, Y, Åsman, B, Augustin, J, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, D, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, K, Begalli, M, Behrmann, A, Beilliere, P, Belokopytov, Y, Benekos, N, Benvenuti, A, Berat, C, Berggren, M, Berntzon, L, Bertrand, D, Besancon, M, Bilenky, M, Bizouard, M, Bloch, D, Blom, H, Bonesini, M, Boonekamp, M, Booth, P, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T, Boyko, I, Bozovic, I, Bozzo, M, Bracko, M, Branchini, P, Brenner, R, Bruckman, P, Brunet, J, Bugge, L, Buran, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Castillo Gimenez, M, Cattai, A, Cavallo, F, Charpentier, P, Checchia, P, Chelkov, G, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Costa, M, Crawley, H, Crennell, D, Croix, J, Cuevas Maestro, J, Czellar, S, D'Hondt, J, Dalmau, J, Davenport, M, Da Silva, W, Della Ricca, G, Delpierre, P, Demaria, N, de Angelis, A, de Boer, W, de Clercq, C, de Lotto, B, de Min, A, de Paula, L, Dijkstra, H, di Ciaccio, L, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Eigen, G, Ekelof, T, Ellert, M, Elsing, M, Engel, J, Espirito Santo, M, Fanourakis, G, Fassouliotis, D, Feindt, M, Fernandez, J, Ferrer, A, Ferrer Ribas, E, Ferro, F, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, A, Fruhwirth, R, Fulda Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, E, Gele, D, Geralis, T, Gerdyukov, L, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez Ceballos, G, Goncalves, P, Gonzalez Caballero, I, Gopal, G, Gorn, L, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Gris, P, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, F, Haug, S, Hauler, F, Hedberg, V, Heising, S, Hernandez, J, Herquet, P, Herr, H, Higon, E, Holmgren, S, Holt, P, Hoorelbeke, S, Houlden, M, Hrubec, J, Huber, M, Hughes, G, Hultqvist, K, Jackson, J, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean Marie, B, Jeans, D, Johansson, E, Jonsson, P, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, E, Keranen, R, Kernel, G, Kersevan, B, Khokhlov, Y, Khomenko, B, Khovanski, N, Kiiskinen, A, King, B, Kinvig, A, Kjaer, N, Klapp, O, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kurowska, J, Kurvinen, K, Lamsa, J, Lane, D, Laugier, J, Lauhakangas, R, Leder, G, Ledroit, F, Leinonen, L, Leisos, A, Leitner, R, Lemonne, J, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Loerstad, B, Loken, J, Lopes, J, Lopez, J, Lopez Fernandez, R, Loukas, D, Lutz, P, Lyons, L, Macnaughton, J, Mahon, J, Maio, A, Malek, A, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, J, Mariotti, C, Markou, A, Martinez Rivero, C, Marti i. Garcia, S, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, Mccubbin, M, Mckay, R, Mcnulty, R, Mcpherson, G, Merle, E, Meroni, C, Meyer, W, Migliore, E, Mirabito, L, Mitaroff, W, Mjoernmark, U, Moa, T, Moch, M, Moeller, R, Moenig, K, Monge, M, Montenegro, J, Moraes, D, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mulet Marquis, C, Mundim, L, Muresan, R, Murray, W, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Nassiakou, M, Navarria, F, Nawrocki, K, Negri, P, Neufeld, N, Nicolaidou, R, Nielsen, B, Niezurawski, P, Nikolenko, M, Nomokonov, V, Nygren, A, Obraztsov, V, Olshevski, A, Onofre, A, Orava, R, Osterberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, T, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pavel, T, Pegoraro, M, Peralta, L, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Poireau, V, 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, Rehn, J, Reid, D, Reinertsen, P, Reinhardt, R, Renton, P, Resvanis, L, Richard, F, Ridky, J, Rinaudo, G, Ripp Baudot, I, 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, Savoy Navarro, A, Schwanda, C, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Seager, P, Sedykh, Y, Segar, A, Seibert, N, Sekulin, R, Sette, G, Shellard, R, Siebel, M, Simard, L, Simonetto, F, Sisakian, A, Smadja, G, Smirnov, N, Smirnova, O, Smith, G, Sokolov, A, Solovianov, O, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Squarcia, S, Stanescu, C, Stanitzki, M, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, TABARELLI DE FATIS, T, Taffard, A, Tegenfeldt, F, Terranova, F, Timmermans, J, Tinti, N, Tkatchev, L, Tobin, M, Todorova, S, Tome, B, Tonazzo, A, Tortora, L, Tortosa, P, Transtromer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, M, Tyapkin, I, Tyapkin, P, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, van Dam, P, van den Boeck, W, van Doninck, W, van Eldik, J, van Lysebetten, A, van Remortel, N, van Vulpen, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verdier, P, Verlato, M, Vertogradov, L, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, A, Voulgaris, G, Vrba, V, Wahlen, H, Washbrook, A, Weiser, C, Wicke, D, Wickens, J, Wilkinson, G, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, N, Zintchenko, A, Zoller, P, Zumerle, G, Zupan, M, BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Poropat, Paolo, Vitale, Lorenzo, and UCL - SST/IRMP - Institut de recherche en mathématique et physique
Subjects: Particle physics, Nuclear and High Energy Physics, COLLISIONS, LOWEST ORDER CALCULATIONS, PAIR PRODUCTION, ENERGIES, MONTE-CARLO SIMULATION, FOS: Physical sciences, 2-PHOTON PROCESSES, 01 natural sciences, Partícules (Física nuclear), Standard Model, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), LEP2, SEARCH, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], PROGRAM, 010306 general physics, QC, DELPHI, Physics, 010308 nuclear & particles physics, Sigma, ROOT-S=183 GEV, LARGE ELECTRON POSITRON COLLIDER, PARTICLE PHYSICS, Física nuclear, Particle Physics - Experiment
Abstract: Measurements of on-shell ZZ production are described, using data collected by DELPHI in 1997 and 1998, at centre-of-mass energies sqrt(s) = 182.6 GeV and 188.6 GeV respectively. Results obtained in each of the final states q qbar q qbar, mu+mu- q qbar, e+e- q qbar, nu nubar q qbar, l+l-l+l-, and nu nubar l+l- are presented. The measured cross-sections for on-shell ZZ production via the tree-level doubly-resonant graphs (NC02) are: sigma_{NC02}(182.6 GeV) = 0.38 +- 0.18 (stat) +- 0.04 (syst) pb, sigma_{NC02}(188.6 GeV) = 0.60 +- 0.13 (stat) +- 0.07 (syst) pb. They are consistent with the Standard Model expectations of 0.25 pb and 0.65 pb at each energy., 18 pages, 5 figures
Published: 2001
Full Text: View/download PDF

7. Measurement of the mass and width of the W boson in e(+)e(-) collisions at root s=189 GeV

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, Alekseev, Gd, Alemany, R, Allmendinger, T, Allport, Pp, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anashkin, E, Anassontzis, Eg, Andersson, P, Andreazza, A, Andringa, S, Anjos, N, Antilogus, P, Apel, Wd, Arnoud, Y, Asman, B, Augustin, Je, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, Dy, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, Kh, Begalli, M, Behrmann, A, Bellunato, Tf, Belokopytov, Y, Belous, K, Benekos, Nc, Benvenuti, Ac, Berat, C, Berggren, M, Berntzon, L, Bertrand, D, Besancon, M, Besson, N, Bilenky, Ms, Bloch, D, Blom, Hm, Bol, L, Bonesini, M, Boonekamp, M, Booth, Psl, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bowcock, Tjv, Boyko, I, Bozovic, I, Bracko, M, Branchini, P, Brenner, Ra, Bruckman, P, Brunet, Jm, Bugge, L, Buschmann, P, Caccia, Massimo, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, Mvc, Cattai, A, Cavallo, Fr, Chapkin, M, Charpentier, P, Checchia, P, Chelkov, Ga, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Costa, M, Crawley, Hb, Crennell, D, Croix, J, Crosetti, G, Maestro, Jc, Czellar, S, D'Hondt, J, Dalmau, J, Davenport, M, DA SILVA, W, DELLA RICCA, G, Delpierre, P, Demaria, N, DE ANGELIS, A, DE BOER, W, DE CLERCQ, C, DE LOTTO, B, DE MIN, A, DE PAULA, L, Dijkstra, H, DI CIACCIO, L, Doroba, K, Dracos, M, Drees, J, Dris, M, Eigen, G, Ekelof, T, Ellert, M, Elsing, M, Engel, Jp, Santo, Me, Fanourakis, G, Fassouliotis, D, Feindt, M, Fernandez, J, Ferrer, A, FERRER RIBAS, E, Ferro, F, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, Ag, Fruhwirth, R, FULDA QUENZER, F, Fuster, J, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, En, Gele, D, Geralis, T, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, GOMEZ CEBALLOS, G, Goncalves, P, Caballero, Ig, Gopal, G, Gorn, L, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, Fj, Haug, S, Hauler, F, Hedberg, V, Heising, S, Hernandez, Jj, Herquet, P, Herr, H, Hertz, O, Higon, E, Holmgren, So, Holt, Pj, Hoorelbeke, S, Houlden, M, Hrubec, J, Hughes, Gj, Hultqvist, K, Jackson, Jn, Jacobsson, R, Jalocha, P, Jarlskog, C, Jarlskog, G, Jarry, P, JEAN MARIE, B, Jeans, D, Johanson, Ek, Jonsson, P, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, Ec, Keranen, R, Kernel, G, Kersevan, Bp, Khokhlov, Y, Khomenko, Ba, Khovanski, Nn, Kiiskinen, A, King, B, Kinvig, A, Kjaer, Nj, Klapp, O, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kucharczyk, M, Kurowska, J, Lamsa, Jw, Laugier, Jp, Leder, G, Ledroit, F, Leinonen, L, Leisos, A, Leitner, R, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Loken, Jg, Lopes, Jh, Lopez, Jm, LOPEZ FERNANDEZ, R, Loukas, D, Lutz, P, Lyons, L, Macnaughton, J, Mahon, Jr, Maio, A, Malek, A, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, Jc, Mariotti, C, Markou, A, MARTINEZ RIVERO, C, Garcia, Smi, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, Mccubbin, M, Mckay, R, Mcnulty, R, Mcpherson, G, Merle, E, Meroni, C, Meyer, Wt, Migliore, E, Mirabito, L, Mitaroff, Wa, Mjoernmark, U, Moa, T, Moch, M, Moenig, K, Monge, Mr, Montenegro, J, Moraes, D, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mundim, Lm, Murray, Wj, Muryn, B, Myatt, G, Myklebust, T, Nassiakou, M, Navarria, Fl, Nawrocki, K, Negri, P, Nemecek, S, Neufeld, N, Nicolaidou, R, Niezurawski, P, Nikolenko, M, Nomokonov, V, Nygren, A, Obraztsov, V, Olshevski, Ag, Onofre, A, Orava, R, Osterberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, Td, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Peralta, L, Perepelitsa, V, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, Ht, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Poireau, V, Pol, Me, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Read, Al, Rebecchi, P, Redaelli, Ng, Regler, M, Rehn, J, Reid, D, Reinhardt, R, Renton, Pb, Resvanis, Lk, Richard, F, Ridky, J, Rinaudo, G, RIPP BAUDOT, I, Romero, A, Ronchese, P, Rosenberg, Ei, Rosinsky, P, Roudeau, P, Rovelli, T, RUHLMANN KLEIDER, V, Ruiz, A, Saarikko, H, Sacquin, Y, Sadovsky, A, Sajot, G, Salmi, L, Salt, J, Sampsonidis, D, Sannino, M, SAVOY NAVARRO, A, Schwanda, C, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Sedykh, Y, Segar, Am, Sekulin, R, Sette, G, Shellard, Rc, Siebel, M, Simard, L, Simonetto, F, Sisakian, An, Smadja, G, Smirnov, N, Smirnova, O, Smith, Gr, Sokolov, A, Solovianov, O, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Squarcia, S, Stanescu, C, Stanitzki, M, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Taffard, A, Tegenfeldt, F, Terranova, F, Timmermans, J, Tinti, N, Tkatchev, Lg, Tobin, M, Todorova, S, Tome, B, Tonazzo, A, Tortora, L, Tortosa, P, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, Ml, Tyapkin, Ia, Tyapkin, P, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, VANDER VELDE, C, VAN DAM, P, VAN DEN BOECK, W, VAN DONINCK WK, VAN ELDIK, J, VAN LYSEBETTEN, A, VAN REMORTEL, N, VAN VULPEN, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verdier, P, Verlato, M, Vertogradov, Ls, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, As, Voulgaris, G, Vrba, V, Wahlen, H, Washbrook, Aj, Weiser, C, Wicke, D, Wickens, Jh, Wilkinson, Gr, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, Ni, Zintchenko, A, Zoller, P, Zumerle, G, Zupan, M., Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, Alekseev, G, Alemany, R, Allmendinger, T, Allport, P, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anashkin, E, Anassontzis, E, Andersson, P, Andreazza, A, Andringa, S, Anjos, N, Antilogus, P, Apel, W, Arnoud, Y, Asman, B, Augustin, J, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, D, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, K, Begalli, M, Behrmann, A, Bellunato, T, Belokopytov, Y, Belous, K, Benekos, N, Benvenuti, A, Berat, C, Berggren, M, Berntzon, L, Bertrand, D, Besancon, M, Besson, N, Bilenky, M, Bloch, D, Blom, H, Bol, L, Bonesini, M, Boonekamp, M, Booth, P, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bowcock, T, Boyko, I, Bozovic, I, Bracko, M, Branchini, P, Brenner, R, Bruckman, P, Brunet, J, Bugge, L, Buschmann, P, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, M, Cattai, A, Cavallo, F, Chapkin, M, Charpentier, P, Checchia, P, Chelkov, G, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Costa, M, Crawley, H, Crennell, D, Croix, J, Crosetti, G, Maestro, J, Czellar, S, D'Hondt, J, Dalmau, J, Davenport, M, Da Silva, W, Della Ricca, G, Delpierre, P, Demaria, N, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Min, A, De Paula, L, Dijkstra, H, Di Ciaccio, L, Doroba, K, Dracos, M, Drees, J, Dris, M, Eigen, G, Ekelof, T, Ellert, M, Elsing, M, Engel, J, Santo, M, Fanourakis, G, Fassouliotis, D, Feindt, M, Fernandez, J, Ferrer, A, Ferrer Ribas, E, Ferro, F, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, A, Fruhwirth, R, Fulda Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, E, Gele, D, Geralis, T, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez Ceballos, G, Goncalves, P, Caballero, I, Gopal, G, Gorn, L, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, F, Haug, S, Hauler, F, Hedberg, V, Heising, S, Hernandez, J, Herquet, P, Herr, H, Hertz, O, Higon, E, Holmgren, S, Holt, P, Hoorelbeke, S, Houlden, M, Hrubec, J, Hughes, G, Hultqvist, K, Jackson, J, Jacobsson, R, Jalocha, P, Jarlskog, C, Jarlskog, G, Jarry, P, Jean Marie, B, Jeans, D, Johanson, E, Jonsson, P, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, E, Keranen, R, Kernel, G, Kersevan, B, Khokhlov, Y, Khomenko, B, Khovanski, N, Kiiskinen, A, King, B, Kinvig, A, Kjaer, N, Klapp, O, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kucharczyk, M, Kurowska, J, Lamsa, J, Laugier, J, Leder, G, Ledroit, F, Leinonen, L, Leisos, A, Leitner, R, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Loken, J, Lopes, J, Lopez, J, Lopez Fernandez, R, Loukas, D, Lutz, P, Lyons, L, Macnaughton, J, Mahon, J, Maio, A, Malek, A, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, J, Mariotti, C, Markou, A, Martinez Rivero, C, Garcia, S, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, Mccubbin, M, Mckay, R, Mcnulty, R, Mcpherson, G, Merle, E, Meroni, C, Meyer, W, Migliore, E, Mirabito, L, Mitaroff, W, Mjoernmark, U, Moa, T, Moch, M, Moenig, K, Monge, M, Montenegro, J, Moraes, D, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mundim, L, Murray, W, Muryn, B, Myatt, G, Myklebust, T, Nassiakou, M, Navarria, F, Nawrocki, K, Negri, P, Nemecek, S, Neufeld, N, Nicolaidou, R, Niezurawski, P, Nikolenko, M, Nomokonov, V, Nygren, A, Obraztsov, V, Olshevski, A, Onofre, A, Orava, R, Osterberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, T, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Peralta, L, Perepelitsa, V, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Poireau, V, Pol, M, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Read, A, Rebecchi, P, Redaelli, N, Regler, M, Rehn, J, Reid, D, Reinhardt, R, Renton, P, Resvanis, L, Richard, F, Ridky, J, Rinaudo, G, Ripp Baudot, I, 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, Salmi, L, Salt, J, Sampsonidis, D, Sannino, M, Savoy Navarro, A, Schwanda, C, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Sedykh, Y, Segar, A, Sekulin, R, Sette, G, Shellard, R, Siebel, M, Simard, L, Simonetto, F, Sisakian, A, Smadja, G, Smirnov, N, Smirnova, O, Smith, G, Sokolov, A, Solovianov, O, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Squarcia, S, Stanescu, C, Stanitzki, M, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Taffard, A, Tegenfeldt, F, Terranova, F, Timmermans, J, Tinti, N, Tkatchev, L, Tobin, M, Todorova, S, Tome, B, Tonazzo, A, Tortora, L, Tortosa, P, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, M, Tyapkin, I, Tyapkin, P, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Vander Velde, C, Van Dam, P, Van den Boeck, W, Van Doninck, W, Van Eldik, J, Van Lysebetten, A, van Remortel, N, Van Vulpen, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verdier, P, Verlato, M, Vertogradov, L, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, A, Voulgaris, G, Vrba, V, Wahlen, H, Washbrook, A, Weiser, C, Wicke, D, Wickens, J, Wilkinson, G, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, N, Zintchenko, A, Zoller, P, Zumerle, G, and Zupan, M
Subjects: ENERGY, EVENTS, EINSTEIN CORRELATIONS, CLUSTERING-ALGORITHM, MONTE-CARLO PROGRAM, RECONSTRUCTION, LEP, PAIR CROSS-SECTION, ANNIHILATION, DELPHI
Abstract: A measurement of the FV mass and width has been performed by the DELPHI Collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb(-1) and an average centre-of-mass energy of 188.6 GeV. Results are obtained by applying the method of direct reconstruction of the mass of the W from its decay products in both the W+W- --> l (v) over bar (l)q (q) over bar ' and W+W- --> q (q) over bar '(q) over barq ' channels. The W mass result for the 1998 data set is M-W = 80.387 +/- 0.087(stat) +/- 0.034(syst) +/- 0.017(LEP) +/- 0.035(FSI) GeV/c(2), where FSI represents the uncertainty due to final state interaction effects in the q (q) over bar 'q (q) over bar ' channel, and LEP represents that arising from the knowledge of the beam energy of the accelerator Combining this result with Ghost: previously published by the DELPHI Collaboration gives the result M-W = 80.359 +/- 0.074(stat) +/- 0.032(syst) +/- 0.017(LEP) +/- 0.033(FSI) GeV/c(2). The combined value for the W width is Gamma (W) = 2.266 +/- 0.176(stat) +/- 0.056(syst) +/- 0.052(FSI) GeV/c(2). (C) 2001 Elsevier Science B.V. All rights reserved
Published: 2001

8. Measurement of the ZZ cross-section in e(+)e(-) interactions at 183-189 GeV

Author: Abreu, P Adam, W Adye, T Adzic, P Ajinenko, I and Albrecht, Z Alderweireld, T Alekseev, GD Alemany, R and Allmendinger, T Allport, PP Almehed, S Amaldi, U and Amapane, N Amato, S Anassontzis, EG Andersson, P and Andreazza, A Andringa, S Antilogus, P Apel, WD Arnoud, Y and Asman, B Augustin, JE Augustinus, A Baillon, P and Ballestrero, A Bambade, P Barao, F Barbiellini, G and Barbier, R Bardin, DY Barker, G Baroncelli, A Battaglia, M Baubillier, M Becks, KH Begalli, M Behrmann, A and Beilliere, P Belokopytov, Y Benekos, NC Benvenuti, AC and Berat, C Berggren, M Berntzon, L Bertrand, D Besancon, M and Bilenky, MS Bizouard, MA Bloch, D Blom, HM Bonesini, M Boonekamp, M Booth, PSL Borisov, G Bosio, C and Botner, O Boudinov, E Bouquet, B Bourdarios, C Bowcock, TJV Boyko, I Bozovic, I Bozzo, M Bracko, M and Branchini, P Brenner, RA Bruckman, P Brunet, JM Bugge, L and Buran, T Buschmann, P Cabrera, S Caccia, M Calvi, M and Camporesi, T Canale, V Carena, F Carroll, L Caso, C and Gimenez, MVC Cattai, A Cavallo, FR Charpentier, P and Checchia, P Chelkov, GA Chierici, R Chliapnikov, P and Chochula, P Chorowicz, V Chudoba, J Cieslik, K Collins, P Contri, R Cortina, E Cosme, G Cossutti, F Costa, M and Crawley, HB Crennell, D Croix, J Maestro, JC and Czellar, S D'Hondt, J Dalmau, J Davenport, M Da Silva, W and Della Ricca, G Delpierre, P Demaria, N De Angelis, A and De Boer, W De Clercq, C De Lotto, B De Min, A De Paula, L Dijkstra, H Di Ciaccio, L Dolbeau, J Doroba, K and Dracos, M Drees, J Dris, M Eigen, G Ekelof, T and Ellert, M Elsing, M Engel, JP Santo, ME Fanourakis, G and Fassouliotis, D Feindt, M Fernandez, J Ferrer, A and Ferrer-Ribas, E Ferro, F Firestone, A Flagmeyer, U and Foeth, H Fokitis, E Fontanelli, F Franek, B Frodesen, AG and Fruhwirth, R Fulda-Quenzer, F Fuster, J Galloni, A and Gamba, D Gamblin, S Gandelman, M Garcia, C Gaspar, C and Gaspar, M Gasparini, U Gavillet, P Gazis, EN Gele, D and Geralis, T Gerdyukov, L Ghodbane, N Gil, I Glege, F and Gokieli, R Golob, B Gomez-Ceballos, G Goncalves, P and Caballero, IG Gopal, G Gorn, L Gouz, Y Gracco, V and Grahl, J Graziani, E Gris, P Grosdidier, G Grzelak, K and Guy, J Haag, C Hahn, F Hahn, S Haider, S and Hallgren, A Hamacher, K Hansen, J Harris, FJ Haug, S and Hauler, F Hedberg, V Heising, S Hernandez, JJ Herquet, P and Herr, H Higon, E Holmgren, SO Holt, PJ Hoorelbeke, S and Houlden, M Hrubec, J Huber, M Hughes, GJ Hultqvist, K Jackson, JN Jacobsson, R Jalocha, P Janik, R and Jarlskog, C Jarlskog, G Jarry, P Jean-Marie, B Jeans, D and Johansson, EK Jonsson, P Joram, C Juillot, P and Jungermann, L Kapusta, F Karafasoulis, K Katsanevas, S and Katsoufis, EC Keranen, R Kernel, G Kersevan, BP and Khokhlov, Y Khomenko, BA Khovanski, NN Kiiskinen, A and King, B Kinvig, A Kjaer, NJ Klapp, O Kluit, P and Kokkinias, P Kostioukhine, V Kourkoumelis, C Kouznetsov, O and Krammer, M Kriznic, E Krumstein, Z Kubinec, P and Kurowska, J Kurvinen, K Lamsa, JW Lane, DW Laugier, JP and Lauhakangas, R Leder, G Ledroit, F Leinonen, L and Leisos, A Leitner, R Lemonne, J Lenzen, G Lepeltier, V and Lesiak, T Lethuillier, M Libby, J Liebig, W Liko, D and Lipniacka, A Lippi, I Loerstad, B Loken, JG Lopes, JH Lopez, JM Lopez-Fernandez, R Loukas, D Lutz, P and Lyons, L MacNaughton, J Mahon, JR Maio, A Malek, A and Maltezos, S Malychev, V Mandl, F Marco, J Marco, R and Marechal, B Margoni, M Marin, JC Mariotti, C Markou, A and Martinez-Rivero, C Garcia, SMI Masik, J and Mastroyiannopoulos, N Matorras, F Matteuzzi, C Matthiae, G and Mazzucato, F Mazzucato, M McCubbin, M McKay, R and McNulty, R McPherson, G Merle, E Meroni, C Meyer, WT and Migliore, E Mirabito, L Mitaroff, WA Mjoernmark, U Moa, T Moch, M Moeller, R Moenig, K Monge, MR Montenegro, J Moraes, D Morettini, P Morton, G Mueller, U and Muenich, K Mulders, M Mulet-Marquis, C Mundim, LM and Muresan, R Murray, WJ Muryn, B Myatt, G Myklebust, T and Naraghi, F Nassiakou, M Navarria, FL Nawrocki, K Negri, P Neufeld, N Nicolaidou, R Nielsen, BS Niezurawski, P and Nikolenko, M Nomokonov, V Nygren, A Obraztsov, V and Olshevski, AG Onofre, A Orava, R Osterberg, K Ouraou, A and Oyanguren, A Paganoni, M Paiano, S Pain, R Paiva, R and Palacios, J Palka, H Papadopoulou, TD Pape, L and Parkes, C Parodi, F Parzefall, U Passeri, A Passon, O and Pavel, T Pegoraro, M Peralta, L Pernicka, M and Perrotta, A Petridou, C Petrolini, A Phillips, HT and Pierre, F Pimenta, M Piotto, E Podobnik, T Poireau, V and Pol, ME Polok, G Poropat, P Pozdniakov, V Privitera, P Pukhaeva, N Pullia, A Radojicic, D Ragazzi, S and Rahmani, H Rames, J Ratoff, PN Read, AL Rebecchi, P and Redaelli, NG Regler, M Rehn, J Reid, D Reinertsen, P and Reinhardt, R Renton, PB Resvanis, LK Richard, F Ridky, J and Rinaudo, G Ripp-Baudot, I Romero, A Ronchese, P and Rosenberg, EI Rosinsky, P Roudeau, P Rovelli, T and Ruhlmann-Kleider, V Ruiz, A Saarikko, H Sacquin, Y and Sadovsky, A Sajot, G Salt, J Sampsonidis, D Sannino, M and Savoy-Navarro, A Schwanda, C Schwemling, P Schwering, B and Schwickerath, U Scuri, F Seager, P Sedykh, Y Segar, AM Seibert, N Sekulin, R Sette, G Shellard, RC and Siebel, M Simard, L Simonetto, F Sisakian, AN Smadja, G and Smirnov, N Smirnova, O Smith, GR Sokolov, A and Solovianov, O Sopczak, A Sosnowski, R Spassov, T and Spiriti, E Squarcia, S Stanescu, C Stanitzki, M and Stevenson, K Stocchi, A Strauss, J Strub, R Stugu, B and Szczekowski, M Szeptycka, M Tabarelli, T Taffard, A and Tegenfeldt, F Terranova, F Timmermans, J Tinti, N and Tkatchev, LG Tobin, M Todorova, S Tome, B Tonazzo, A and Tortora, L Tortosa, P Transtromer, G Treille, D and Tristram, G Trochimczuk, M Troncon, C Turluer, ML and Tyapkin, IA Tyapkin, P Tzamarias, S Ullaland, O Uvarov, V Valenti, G Vallazza, E Van Dam, P Van den Boeck, W and Van Doninck, WK Van Eldik, J Van Lysebetten, A van Remortel, N Van Vulpen, I Vegni, G Ventura, L Venus, W and Verbeure, F Verdier, P Verlato, M Vertogradov, LS Verzi, V Vilanova, D Vitale, L Vlasov, E Vodopyanov, AS and Voulgaris, G Vrba, V Wahlen, H Washbrook, AJ Weiser, C and Wicke, D Wickens, JH Wilkinson, GR Winter, M Witek, M Wolf, G Yi, J Yushchenko, O Zalewska, A Zalewski, P Zavrtanik, D Zevgolatakos, E Zimin, NI Zintchenko, A and Zoller, P Zumerle, G Zupan, M DELPHI Collaboration
Abstract: Measurements of on-shell ZZ production are described, using data collected by DELPHI in 1997 and 1998, at centre-of-mass energies roots = 182.6 GeV and 188.6 GeV, respectively. Results obtained in each of the final states q (q) over barq (q) over bar, mu (+)mu (-) q (q) over bar e(+)e(-)q (q) over bar, nu)over bar>q (q) over bar, l(+)l(-)l(+)l(-), and nu)over bar>l(+)l(-) are presented. The measured cross-sections for on-shell ZZ production via the tree-level doubly-resonant graphs (NC02) are: sigma (NC02) (182.6 GeV) = 0.38 +/- 0.18 (stat) +/- 0.04 (syst) pb, sigma (NC02) (188.6 GeV) = 0.60+/-0.13 (stat) +/- 0.07 (syst) pb. They are consistent with the Standard Model expectations of 0.25 and 0.65 pb at each energy. (C) 2001 Published by Elsevier Science B.V.
Published: 2001

9. Measurement of V-cb from the decay process (B)over-bar(0)-> D(*+)l(-)(nu)over-bar

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, Alekseev, GD, Alemany, R, Allmendinger, T, Allport, PP, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anassontzis, EG, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, WD, Arnoud, Y, Asman, B, Augustin, JE, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, DY, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, KH, Begalli, M, Behrmann, A, Beilliere, P, Belokopytov, Y, Belous, K, Benekos, NC, Benvenuti, AC, Berat, C, Berggren, M, Berntzon, L, Bertrand, D, Besancon, M, Bilenky, MS, Bizouard, MA, Bloch, D, Blom, HM, Bonesini, M, Boonekamp, M, Booth, PSL, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, TJV, Boyko, I, Bozovic, I, Bozzo, M, Bracko, M, Branchini, P, Brenner, RA, Bruckman, P, Brunet, JM, Bugge, L, Buran, T, Buschbeck, B, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, MVC, Cattai, A, Cavallo, FR, Chapkin, M, Charpentier, P, Checchia, P, Chelkov, GA, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Costa, M, Crawley, HB, Crennell, D, Crepe, S, Crosetti, G, Maestro, JC, Czellar, S, D'Hondt, J, Dalmau, J, Davenport, M, Da Silva, W, Della Ricca, G, Delpierre, P, Demaria, N, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Min, A, De Paula, L, Dijkstra, H, Di Ciaccio, L, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Duperrin, A, Eigen, G, Ekelof, T, Ellert, M, Elsing, M, Engel, JP, Santo, ME, Fanourakis, G, Fassouliotis, D, Feindt, M, Fernandez, J, Ferrer, A, Ferrer-Ribas, E, Ferro, F, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, AG, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Caspar, M, Gasparini, U, Gavillet, P, Gazis, EN, Gele, D, Geralis, T, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez-Ceballoso, G, Goncalves, P, Caballero, IG, Gopal, G, Gorn, L, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Gris, P, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, FJ, Hauler, F, Hedberg, V, Heising, S, Hernandez, JJ, Herquet, P, Herr, H, Higon, E, Holmgren, SO, Holt, PJ, Hoorelbeke, S, Houlden, M, Hrubec, J, Huber, M, Hughes, GJ, Hultqvist, K, Jackson, JN, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Jeans, D, Johansson, EK, Jonsson, P, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, EC, Keranen, R, Kernel, G, Kersevan, BP, Khokhlov, Y, Khomenko, BA, Khovanski, NN, Kiiskinen, A, King, B, Kinvig, A, Kjaer, NJ, Klapp, O, Klein, H, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kurowska, J, Kurvinen, K, Lamsa, JW, Lane, DW, Lapin, V, Laugier, JP, Lauhakangas, R, Leder, G, Ledroit, F, Leinonen, L, Leisos, A, Leitner, R, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Loerstad, B, Loken, JG, Lopes, JH, Lopez, JM, Lopez-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J, Mahon, JR, Maio, A, Malek, A, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, JC, Mariotti, C, Markou, A, Martinez-Rivero, C, Garcia, SMI, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, Mc Cubbin, M, Mc Kay, R, Mc Nulty, R, Mc Pherson, G, Meroni, C, Meyer, WT, Miagkov, A, Migliore, E, Mirabito, L, Mitaroff, WA, Mjoernmark, U, Moa, T, Moch, M, Moeller, R, Moenig, K, Monge, MR, Moraes, D, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mulet-Marquis, C, Muresan, R, Murray, WJ, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Nassiakou, M, Navarria, FL, Nawrocki, K, Negri, P, Neufeld, N, Nicolaidou, R, Nielsen, BS, Niezurawski, P, Nikolenko, M, Nomokonov, V, Nygren, A, Obraztsov, V, Olshevski, AG, Onofre, A, Orava, R, Orazi, G, Osterberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, TD, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pavel, T, Pegoraro, M, Peralta, L, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, HT, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Poireau, V, Pol, ME, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, PN, Read, AL, Rebecchi, P, Redaelli, NC, Regler, M, Rehn, J, Reid, D, Reinertsen, P, Reinhardt, R, Renton, PB, Resvanis, LK, Richard, F, Ridky, J, Rinaudo, G, Ripp-Baudot, I, Rohne, O, Romero, A, Ronchese, P, Rosenberg, EI, 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, Savoy-Navarro, A, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Seager, P, Sedykh, Y, Segar, AM, Seibert, N, Sekulin, R, Sette, G, Shellard, RC, Siebel, M, Simard, L, Simonetto, F, Sisakian, AN, Smadja, G, Smirnova, O, Smith, GR, Solovianov, O, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Squarcia, S, Stanescu, C, Stanitzki, M, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Taffard, A, Tegenfeldt, F, Terranova, F, Timmermans, J, Tinti, N, Tkatchev, LG, Tobin, M, Todorova, S, Tome, B, Tonazzo, A, Tortora, L, Tortosa, P, Transtromer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, ML, Tyapkin, IA, Tyapkin, P, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van Dam, P, Van den Boeck, W, Van Doninck, WK, Van Eldik, J, Van Lysebetten, A, van Remortel, N, Van Vulpen, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verdier, P, Verlato, M, Vertogradov, LS, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, AS, Voulgaris, G, Vrba, V, Wahlen, H, Walck, C, Washbrook, AJ, Weiser, C, Wicke, D, Wickens, JH, Wilkinson, GR, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, NI, Zintchenko, A, Zoller, P, Zumerle, G, Zupan, M, and Collaboration, DELPHI
Subjects: VERTICAL-BAR, CHARMED MESONS, B-DECAY, D%28%28ASTERISK%29%29L%28NU%29OVER-BAR+FORM-FACTORS%22">(B)OVER-BAR->D((ASTERISK))L(NU)OVER-BAR FORM-FACTORS, 2ND-ORDER POWER CORRECTIONS, QUARK EFFECTIVE THEORY, BRANCHING FRACTIONS, SEMILEPTONIC DECAYS, DISPERSIVE BOUNDS, DELPHI DETECTOR
Published: 2001

10. Update of the search for supersymmetric particles in scenarios with Gravitino LSP and Sleptons NLSP

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, Alekseev, GD, Alemany, R, Allmendinger, T, Allport, PP, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anashkin, E, Anassontzis, EG, Andersson, P, Andreazza, A, Andringa, S, Anjos, N, Antilogus, P, Apel, WD, Arnoud, Y, Asman, B, Augustin, JE, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, DY, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, KH, Begalli, M, Behrmann, A, Belokopytov, Y, Belous, K, Benekos, NC, Benvenuti, AC, Berat, C, Berggren, M, Berntzon, L, Bertrand, D, Besancon, M, Besson, N, Bilenky, MS, Bloch, D, Blom, HM, Bol, L, Bonesini, M, Boonekamp, M, Booth, PSL, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bowcock, TJV, Boyko, I, Bozovic, I, Bozzo, M, Bracko, M, Branchini, P, Brenner, RA, Bruckman, P, Brunet, JM, Bugge, L, Buschmann, P, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, MVC, Cattai, A, Cavallo, FR, Chapkin, M, Charpentier, P, Checchia, P, Chelkov, GA, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Costa, M, Crawley, HB, Crennell, D, Croix, J, Maestro, JC, Czellar, S, D'Hondt, J, Dalmau, J, Davenport, M, Da Silva, N, Della Ricca, G, Delpierre, P, Demaria, N, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Min, A, De Paula, L, Dijkstra, H, Di Ciaccio, L, Doroba, K, Dracos, M, Drees, J, Dris, M, Eigen, G, Ekelof, T, Ellert, M, Elsing, M, Engel, JP, Santo, ME, Fanourakis, G, Fassouliotis, D, Feindt, M, Fernandez, J, Ferrer, A, Ferrer-Ribas, E, Ferro, F, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, AG, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, EN, Gele, D, Geralis, T, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez-Ceballos, G, Goncalves, P, Caballero, IG, Gopal, G, Gorn, L, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, FJ, Haug, S, Hauler, F, Hedberg, V, Heising, S, Hernandez, JJ, Herquet, P, Herr, H, Hertz, O, Higon, E, Holmgren, SO, Holt, PJ, Hoorelbeke, S, Houlden, M, Hrubec, J, Hughes, GJ, Hultqvist, K, Jackson, JN, Jacobsson, R, Jalocha, P, Jarlskog, C, Jarlskog, G, Jerry, P, Jean-Marie, B, Jeans, D, Johansson, EK, Jonsson, P, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, EC, Keranen, R, Kernel, G, Kersevan, BP, Khokhlov, Y, Khomenko, BA, Khovanski, NN, Kiiskinen, A, King, B, Kinvig, A, Kjaer, NJ, Klapp, O, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kucharczyk, M, Kurowska, J, Lamsa, JW, Laugier, JP, Leder, G, Ledroit, F, Leinonen, L, Leisos, A, Leitner, R, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Loken, JG, Lopes, JH, Lopez, JM, Lopez-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J, Mahon, JR, Maio, A, Malek, A, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, JC, Mariotti, C, Markou, A, Martinez-Rivero, C, Garcia, SMI, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, Mc Cubbin, M, Mc Kay, R, Mc Nulty, R, Mc Pherson, G, Merle, E, Meroni, C, Meyer, WT, Migliore, E, Mirabito, L, Mitaroff, WA, Mjoernmark, U, Moa, T, Moch, M, Moenig, K, Monge, MR, Montenegro, J, Moraes, D, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mundim, LM, Murray, WJ, Muryn, B, Myatt, G, Myklebust, T, Nassiakou, M, Navarria, FL, Nawrocki, K, Negri, P, Nemecek, S, Neufeld, N, Nicolaidou, R, Niezurawski, P, Nikolenko, M, Nomokonov, V, Nygren, A, Obraztsov, V, Olshevski, AG, Onofre, A, Orava, R, Osterberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, TD, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Peralta, L, Perepelitsa, V, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, HT, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Poireau, V, Pol, ME, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Read, AL, Rebecchi, P, Redaelli, NG, Regler, M, Rehn, J, Reid, D, Reinhardt, R, Renton, PB, Resvanis, LK, Richard, F, Ridky, J, Rinaudo, G, Ripp-Baudot, I, Romero, A, Ronchese, P, Rosenberg, EI, Rosinsky, P, Rovelli, T, Ruhlmann-Kieider, V, Ruiz, A, Saarikko, H, Sacquin, Y, Sadovsky, A, Sajot, G, Salmi, L, Salt, J, Sampsonidis, D, Sannino, M, Savoy-Navarro, A, Schwanda, C, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Seager, P, Sedykh, Y, Segar, AM, Sekulin, R, Sette, G, Shellard, RC, Siebel, M, Simard, L, Simonetto, F, Sisakian, AN, Smadja, G, Smirnov, N, Smirnova, O, Smith, GR, Sokolov, A, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Squarcia, S, Stanescu, C, Stanitzki, M, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Taffard, A, Tchikilev, O, Tegenfeldt, F, Terranova, F, Timmermans, J, Tinti, N, Tkatchev, LG, Tobin, M, Todorova, S, Tome, B, Tonazzo, A, Tortora, L, Tortosa, P, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, ML, Tyapkin, IA, Tyapkin, P, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Vander Velde, C, Van Dam, P, Van den Boeck, W, Van Eldik, J, Van Lysebetten, A, van Remortel, N, Van Vulpen, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verdier, P, Verlato, M, Vertogradov, LS, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, AS, Voulgaris, G, Vrba, V, Wahlen, H, Washbrook, AJ, Weiser, C, Wicke, D, Wickens, JH, Wilkinson, GR, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, NI, Zintchenko, A, Zoller, P, Zumerle, G, Zupan, M, Collaboration, DELPHI, 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 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), 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), 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, UCL - SST/IRMP - Institut de recherche en mathématique et physique, 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), 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 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), BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Poropat, Paolo, Vitale, Lorenzo, Delphi (IHEF, IoP, FNWI), Delphi, Collaboration, Abreu, P., Adam, W., and Canale, Vincenzo
Subjects: NEUTRALINOS, Nuclear and High Energy Physics, Particle physics, MONTE-CARLO SIMULATION, LOWEST ORDER CALCULATIONS, E(+)E(-) COLLISIONS, 2-PHOTON PROCESSES, PAIR PRODUCTION, MISSING ENERGY, STAU NLSP, BREAKING, SUPERGRAVITY, FOS: Physical sciences, Context (language use), 01 natural sciences, Lightest Supersymmetric Particle, Partícules (Física nuclear), High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, DELPHI, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, LARGE ELECTRON POSITRON COLLIDER, Charged particle, PARTICLE PHYSICS, Particle, Gravitino, Física nuclear, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: An update of the search for sleptons, neutralinos and charginos in the context of scenarios where the lightest supersymmetric particle is the gravitino and the next-to-lightest supersymmetric particle is a slepton, is presented, together with the update of the search for heavy stable charged particles in light gravitino scenarios and Minimal Supersymmetric Standard Models. Data collected in 1999 with the DELPHI detector at centre-of-mass energies around 192, 196, 200 and 202 GeV were analysed. No evidence for the production of these supersymmetric particles was found. Hence, new mass limits were derived at 95% confidence level., 21 pages, 6 figures, Accepted by Phys. Lett. B
Published: 2001
Full Text: View/download PDF

11. Measurement of the semileptonic b branching fractions and average b mixing parameter in Z decays

Author: Abreu, P, Adam, W, Adyc, T, Adzic, P, Ajinenko, I, Albrecht, Z, Alderweireld, T, Alekseev, GD, Alemany, R, Allmendinger, T, Allport, PP, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anassontzis, EG, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, WD, Arnoud, Y, Asman, B, Augustin, JE, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, DY, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, KH, Begalli, T, Behrmann, A, Beilliere, P, Belokopytov, Y, Benekos, NC, Benvenuti, AC, Berat, C, Berggren, M, Berntzon, L, Bertrand, D, Besancon, M, Bilenky, MS, Bizouard, MA, Bloch, D, Blom, HM, Bonesini, M, Boonekamp, M, Booth, PSL, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, TJV, Boyko, I, Bozovic, L, Bozzo, M, Bracko, M, Branchini, P, Brenner, RA, Bruckman, P, Brunet, JM, Bugge, L, Buran, T, Buschbeck, B, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, MVC, Cattai, A, Cavallo, FR, Charpentier, P, Checchia, P, Chelkov, GA, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Costa, M, Crawley, HB, Crennell, D, Crosetti, G, Maestro, JC, Czellar, S, D'Hondt, J, Dalmau, J, Davenport, M, Da Silva, W, Della Ricca, G, Delpierre, P, Demaria, N, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Min, A, De Paula, L, Dijkstra, H, Di Ciaccio, L, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Eigen, G, Ekelof, T, Ellert, M, Elsing, M, Engel, JP, Santo, ME, Fanourakis, G, Fassouliotis, D, Feindt, M, Fernandez, J, Ferrer, A, Ferrer-Ribas, E, Ferro, F, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, AG, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, EN, Gele, D, Geralis, T, Gerdyukov, L, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez-Ceballos, G, Goncalves, P, Caballero, IG, Gopal, G, Gorn, L, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Gris, P, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, FJ, Hauler, F, Hedberg, V, Heising, S, Hernandez, JJ, Herquet, P, Herr, H, Higon, E, Holmgren, SO, Holt, PJ, Hoorelbeke, S, Houlden, M, Hrubec, J, Huber, M, Hughes, GJ, Hultqvist, K, Jackson, JN, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Jeans, D, Johansson, EK, Jonsson, P, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, EC, Keranen, R, Kernel, G, Kersevan, BP, Khokhlov, Y, Khomenko, BA, Khovanski, NN, Kiiskinen, A, King, B, Kinvig, A, Kjaer, NJ, Klapp, O, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kurowska, J, Kurvinen, K, Lanisa, JW, Lane, DW, Laugier, JP, Lauhakangas, R, Leder, G, Ledroit, F, Leinonen, L, Leisos, A, Leitner, R, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Loerstad, B, Loken, JG, Lopes, JH, Lopez, JM, Lopez-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J, Mahon, JR, Maio, A, Malek, A, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, JC, Mariotti, C, Markou, A, Martinez-Rivero, C, Garcia, SMI, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, Mc Cubbin, M, Mc Kay, R, Mc Nulty, R, Mc Pherson, G, Merle, E, Meroni, C, Meyer, WT, Migliore, E, Mirabito, L, Mitaroff, WA, Mjoernmark, U, Moa, T, Moch, M, Moeller, R, Moenig, K, Monge, MR, Moraes, D, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mulet-Marquis, C, Mundim, LM, Muresan, R, Murray, WJ, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Nassiakou, M, Navarria, FL, Nawrocki, K, Negri, P, Neufeld, N, Nicolaidou, R, Nielsen, BS, Niezurawski, P, Nikolenko, M, Nomokonov, V, Nygren, A, Obraztsov, V, Olshevski, AG, Onofre, A, Orava, R, Orazi, G, Osterberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, TD, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pavel, T, Pegoraro, M, Peralta, L, Pernicka, N, Perrotta, A, Petridou, C, Petrolini, A, Phillips, HT, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Poireau, V, Pol, ME, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Read, AL, Rebecchi, P, Redaelli, NG, Regler, M, Rehn, J, Reid, D, Reinertsen, P, Reinhardt, R, Renton, PB, Resvanis, LK, Richard, F, Ridky, J, Rinaudo, G, Ripp-Baudot, I, Romero, A, Ronchese, P, Rosenberg, EI, Rosinsky, P, Roudeau, P, Rovelli, T, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Y, Sadovsky, A, Sajot, G, Salt, J, Sanipsonidis, D, Sannino, T, Savoy-Navarro, A, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Sedykh, Y, Segar, AM, Seibert, N, Sekulin, R, Sette, G, Shellard, RC, Siebel, M, Simard, L, Simonetto, F, Sisakian, AN, Smadja, G, Smirnov, N, Smirnova, O, Smith, GR, Sokolov, A, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Squarcia, S, Stanescu, C, Stanitzki, M, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Taffard, A, Tchikilev, O, Tegenfeldt, F, Terranova, F, Timmermans, J, Tinti, N, Tkatchev, LG, Tobin, M, Todorova, S, Tome, B, Tonazzo, A, Tortora, L, Tortosa, P, Transtromer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, ML, Tyapkin, IA, Tyapkin, P, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van Dam, P, Van den Boeck, W, Van Doninck, WK, Van Eldik, J, Van Lysebetten, A, van Remortel, N, Van Vulpen, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verdier, P, Verlato, M, Vertogradov, LS, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, AS, Voulgaris, G, Vrba, V, Wahlen, H, Washbrook, AJ, Weiser, C, Wicke, D, Wickens, JH, Wilkinson, GR, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, NI, Zintchenko, A, Zoller, P, Zumerle, G, Zupan, M, Collaboration, DELPHI, 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 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), 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), 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)-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), 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 (IHEF, IoP, FNWI), 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), 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), 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), UCL - SST/IRMP - Institut de recherche en mathématique et physique, and DELPHI Collaboration
Subjects: Particle physics, Physics and Astronomy (miscellaneous), Hadron, FOS: Physical sciences, LIFETIME, Branching (polymer chemistry), 01 natural sciences, Spectral line, Partícules (Física nuclear), High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], PRECISE MEASUREMENT, 010306 general physics, ANNIHILATION, Nuclear Experiment, Engineering (miscellaneous), DETECTOR, QC, Astrophysics::Galaxy Astrophysics, Physics, MESONS, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Física nuclear, High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Particle Physics - Experiment, Lepton
Abstract: The semileptonic branching fractions for primary and cascade b decays BR(b -> lepton-), BR(b -> c -> lepton+) and BR(b -> cbar -> lepton-) were measured in hadronic Z decays collected by the DELPHI experiment at LEP. The sample was enriched in b decays using the lifetime information and various techniques were used to separate leptons from direct or cascade b decays. By fitting the momentum spectra of di-leptons in opposite jets, the average b mixing parameter chi-bar was also extracted. The following results have been obtained: BR(b -> lepton-) = (10.70 +/- 0.08 (stat) +/- 0.21 (syst)_{+0.44}^{-0.30}(model))% BR(b -> c -> lepton+) = (7.98 +/- 0.22 (stat) +/- 0.21 (syst)^{+0.14}_{-0.20}(model))% BR(b -> cbar -> lepton-) = (1.61 +/- 0.20 (stat) +/- 0.17 (syst)^{+0.30}_{-0.44}(model))% chi-bar = 0.127 +/- 0.013 (stat) +/- 0.005 (syst) +/- 0.004(model), 43 pages, 7 figures, Accepted by Eur. Phys. J. C
Published: 2001
Full Text: View/download PDF

12. W pair production cross-section and W branching fractions in $e^{+}e^{-}$ interactions at 189 GeV

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, Alekseev, GD, Alemany, R, Allmendinger, T, Allport, PP, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anassontzis, EG, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, WD, Arnoud, Y, Asman, B, Augustin, JE, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, DY, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, KH, Begalli, M, Behrmann, A, Beilliere, P, Belokopytov, Y, Belous, K, Benekos, NC, Benvenuti, AC, Berat, C, Berggren, M, Bertrand, D, Besancon, M, Bilenky, MS, Bizouard, MA, Bloch, D, Blom, HM, Bonesini, M, Boonekamp, M, Booth, PSL, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, TJV, Boyko, I, Bozovic, I, Bozzo, M, Bracko, M, Branchini, P, Brenner, RA, Bruckman, P, Brunet, JM, Bugge, L, Buran, T, Buschbeck, B, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, MVC, Cattai, A, Cavallo, FR, Chabaud, V, Chapkin, P, Charpentier, P, Checchia, P, Chelkov, GA, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Costa, M, Crawley, HB, Crennell, D, Crepe, S, Crosetti, G, Maestro, JC, Czellar, S, Davenport, M, Da Silva, W, Della Ricca, G, Delpierre, P, Demaria, N, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Min, A, De Paula, L, Dijkstra, H, Di Ciaccio, L, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Duperrin, A, Durand, JD, Eigen, G, Ekelof, T, Ekspong, G, Ellert, M, Elsing, M, Engel, JP, Santo, ME, Fanourakis, G, Fassouliotis, D, Fayot, J, Feindt, M, Fernandez, J, Ferrer, A, Ferrer-Ribas, E, Ferro, F, Fichet, S, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, AG, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, EN, Gele, D, Geralis, T, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez-Ceballos, G, Goncalves, P, Caballero, IG, Gopal, G, Gorn, L, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Gris, P, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, FJ, Hauler, F, Hedberg, V, Heising, S, Hernandez, JJ, Herquet, P, Herr, H, Heuser, JM, Higon, E, Holmgren, SO, Holt, PJ, Hoorelbeke, S, Houlden, M, Hrubec, J, Huber, M, Hughes, GJ, Hultqvist, K, Jackson, JN, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Jeans, D, Johansson, EK, Jonsson, P, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, EC, Keranen, R, Kernel, G, Kersevan, BP, Khokhlov, Y, Khomenko, BA, Khovanski, NN, Kiiskinen, A, King, B, Kinvig, A, Kjaer, NJ, Klapp, O, Klein, H, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kurowska, J, Kurvinen, K, Lamsa, JW, Lane, DW, Lapin, V, Laugier, JP, Lauhakangas, R, Leder, G, Ledroit, F, Lefebure, V, Leinonen, L, Leisos, A, Leitner, R, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Loerstad, B, Loken, JG, Lopes, JH, Lopez, JM, Lopez-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J, Mahon, JR, Maio, A, Malek, A, Malmgren, TGM, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, JC, Mariotti, C, Markou, A, Martinez-Rivero, C, Garcia, SMI, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, Mc Cubbin, M, Mc Kay, R, Mc Nulty, R, Mc Pherson, G, Meroni, C, Meyer, WT, Miagkov, A, Migliore, E, Mirabito, L, Mitaroff, WA, Mjoernmark, U, Moa, T, Moch, M, Moeller, R, Moenig, K, Monge, MR, Moraes, D, Moreau, X, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mulet-Marquis, C, Muresan, R, Murray, WJ, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Nassiakou, M, Navarria, FL, Nawrocki, K, Negri, P, Neufeld, N, Nicolaidou, R, Nielsen, BS, Niezurawski, P, Nikolenko, M, Nomokonov, V, Nygren, A, Obraztsov, V, Olshevski, AG, Onofre, A, Orava, R, Orazi, G, Osterberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, TD, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pavel, T, Pegoraro, M, Peralta, L, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, HT, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Pol, ME, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, PN, Read, AL, Rebecchi, P, Redaelli, NG, Regler, M, Rehn, J, Reid, D, Reinertsen, P, Reinhardt, R, Renton, PB, Resvanis, LK, Richard, F, Ridky, J, Rinaudo, G, Ripp-Baudot, I, Rohne, O, Romero, A, Ronchese, P, Rosenberg, EI, Rosinsky, P, Roudeau, P, Rovelli, T, Royon, C, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Y, Sadovsky, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Savoy-Navarro, A, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Seager, P, Sedykh, Y, Segar, AM, Seibert, N, Sekulin, R, Sette, G, Shellard, RC, Siebel, M, Simard, L, Simonetto, F, Sisakian, AN, Smadja, G, Smirnova, O, Smith, GR, Solovianov, O, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Squarcia, S, Stanescu, C, Stanitzki, M, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Taffard, A, Tegenfeldt, F, Terranova, F, Timmermans, J, Tinti, N, Tkatchev, LG, Tobin, M, Todorova, S, Tomaradze, A, Tome, B, Tonazzo, A, Tortora, L, Tortosa, P, Transtromer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, ML, Tyapkin, IA, Tyapkin, P, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van Dam, P, Van den Boeck, W, Van Doninck, WK, Van Eldik, J, Van Lysebetten, A, van Remortel, N, Van Vulpen, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verdier, P, Verlato, M, Vertogradov, LS, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, AS, Voulgaris, G, Vrba, V, Wahlen, H, Walck, C, Washbrook, AJ, Weiser, C, Wicke, D, Wickens, JH, Wilkinson, GR, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, NI, Zintchenko, A, Zoller, P, Zucchelli, GC, Zumerle, G, Collaboration, DELPHI, 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), 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), 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), 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), 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 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), UCL - SST/IRMP - Institut de recherche en mathématique et physique, Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, Alekseev, G, Alemany, R, Allmendinger, T, Allport, P, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anassontzis, E, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, W, Arnoud, Y, Asman, B, Augustin, J, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, D, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, K, Begalli, M, Behrmann, A, Beilliere, P, Belokopytov, Y, Belous, K, Benekos, N, Benvenuti, A, Berat, C, Berggren, M, Bertrand, D, Besancon, M, Bilenky, M, Bizouard, M, Bloch, D, Blom, H, Bonesini, M, Boonekamp, M, Booth, P, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T, Boyko, I, Bozovic, I, Bozzo, M, Bracko, M, Branchini, P, Brenner, R, Bruckman, P, Brunet, J, Bugge, L, Buran, T, Buschbeck, B, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, M, Cattai, A, Cavallo, F, Chabaud, V, Chapkin, P, Charpentier, P, Checchia, P, Chelkov, G, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Costa, M, Crawley, H, Crennell, D, Crepe, S, Crosetti, G, Maestro, J, Czellar, S, Davenport, M, Da Silva, W, Della Ricca, G, Delpierre, P, Demaria, N, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Min, A, De Paula, L, Dijkstra, H, Di Ciaccio, L, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Duperrin, A, Durand, J, Eigen, G, Ekelof, T, Ekspong, G, Ellert, M, Elsing, M, Engel, J, Santo, M, Fanourakis, G, Fassouliotis, D, Fayot, J, Feindt, M, Fernandez, J, Ferrer, A, Ferrer Ribas, E, Ferro, F, Fichet, S, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, A, Fruhwirth, R, Fulda Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, E, Gele, D, Geralis, T, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez Ceballos, G, Goncalves, P, Caballero, I, Gopal, G, Gorn, L, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Gris, P, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, F, Hauler, F, Hedberg, V, Heising, S, Hernandez, J, Herquet, P, Herr, H, Heuser, J, Higon, E, Holmgren, S, Holt, P, Hoorelbeke, S, Houlden, M, Hrubec, J, Huber, M, Hughes, G, Hultqvist, K, Jackson, J, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean Marie, B, Jeans, D, Johansson, E, Jonsson, P, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, E, Keranen, R, Kernel, G, Kersevan, B, Khokhlov, Y, Khomenko, B, Khovanski, N, Kiiskinen, A, King, B, Kinvig, A, Kjaer, N, Klapp, O, Klein, H, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kurowska, J, Kurvinen, K, Lamsa, J, Lane, D, Lapin, V, Laugier, J, Lauhakangas, R, Leder, G, Ledroit, F, Lefebure, V, Leinonen, L, Leisos, A, Leitner, R, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Loerstad, B, Loken, J, Lopes, J, Lopez, J, Lopez Fernandez, R, Loukas, D, Lutz, P, Lyons, L, Macnaughton, J, Mahon, J, Maio, A, Malek, A, Malmgren, T, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, J, Mariotti, C, Markou, A, Martinez Rivero, C, Garcia, S, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, Mc Cubbin, M, Mc Kay, R, Mc Nulty, R, Mc Pherson, G, Meroni, C, Meyer, W, Miagkov, A, Migliore, E, Mirabito, L, Mitaroff, W, Mjoernmark, U, Moa, T, Moch, M, Moeller, R, Moenig, K, Monge, M, Moraes, D, Moreau, X, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mulet Marquis, C, Muresan, R, Murray, W, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Nassiakou, M, Navarria, F, Nawrocki, K, Negri, P, Neufeld, N, Nicolaidou, R, Nielsen, B, Niezurawski, P, Nikolenko, M, Nomokonov, V, Nygren, A, Obraztsov, V, Olshevski, A, Onofre, A, Orava, R, Orazi, G, Osterberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, T, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pavel, T, Pegoraro, M, Peralta, L, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, 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, Rehn, J, Reid, D, Reinertsen, P, Reinhardt, R, Renton, P, Resvanis, L, Richard, F, Ridky, J, Rinaudo, G, Ripp Baudot, I, Rohne, O, Romero, A, Ronchese, P, Rosenberg, E, Rosinsky, P, Roudeau, P, Rovelli, T, Royon, C, Ruhlmann Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Y, Sadovsky, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Savoy Navarro, A, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Seager, P, Sedykh, Y, Segar, A, Seibert, N, Sekulin, R, Sette, G, Shellard, R, Siebel, M, Simard, L, Simonetto, F, Sisakian, A, Smadja, G, Smirnova, O, Smith, G, Solovianov, O, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Squarcia, S, Stanescu, C, Stanitzki, M, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, TABARELLI DE FATIS, T, Taffard, A, Tegenfeldt, F, Terranova, F, Timmermans, J, Tinti, N, Tkatchev, L, Tobin, M, Todorova, S, Tomaradze, A, Tome, B, Tonazzo, A, Tortora, L, Tortosa, P, Transtromer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, M, Tyapkin, I, Tyapkin, P, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van Dam, P, Van den Boeck, W, Van Doninck, W, Van Eldik, J, Van Lysebetten, A, van Remortel, N, Van Vulpen, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verdier, P, Verlato, M, Vertogradov, L, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, A, Voulgaris, G, Vrba, V, Wahlen, H, Walck, C, Washbrook, A, Weiser, C, Wicke, D, Wickens, J, Wilkinson, G, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, N, Zintchenko, A, Zoller, P, Zucchelli, G, Zumerle, G, BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Poropat, Paolo, Vitale, Lorenzo, and DELPHI Collaboration
Subjects: Nuclear and High Energy Physics, Particle physics, E+E-ANNIHILATION, DELPHI, PROGRAM, DECAYS, MASS, Analytical chemistry, FOS: Physical sciences, Branching (polymer chemistry), 01 natural sciences, Partícules (Física nuclear), High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), electronic publishing, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Matrix element, 010306 general physics, Physics, high energy collider, 010308 nuclear & particles physics, LEP, LARGE ELECTRON POSITRON COLLIDER, neteconomy, FIS/01 - FISICA SPERIMENTALE, Pair production, PARTICLE PHYSICS, Física nuclear, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: The cross-section for the process e+e- -> W+W- has been measured with the data sample collected by DELPHI at an average centre-of-mass energy of 189 GeV and corresponding to an integrated luminosity of 155 pb^{-1}. Based on the 2392 events selected as WW candidates, the cross-section for the doubly resonant process e+e- -> W+W- has been measured to be 15.83 +- 0.38 (stat) +- 0.20 (syst) pb. The branching fractions of the W decay were also measured and found to be in good agreement with the Standard Model expectation. From these a value of the CKM mixing matrix element |V_{cs}| = 1.001 +- 0.040 (stat) +- 0.020 (syst) was derived., 16 pages, 4 figures
Published: 2000
Full Text: View/download PDF

13. Search for heavy stable and long-lived particles in e(+)e(-) collisions at root s=189 GeV

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, Alekseev, GD, Alemany, R, Allmendinger, T, Allport, PP, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anassontzis, EG, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, WD, Arnoud, Y, Asman, B, Augustin, JE, Augustinus, A, Baillon, P, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, DY, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, KH, Begalli, M, Behrmann, A, Beilliere, P, Belokopytov, Y, Belous, K, Benekos, NC, Benvenuti, AFC, Berat, C, Berggren, M, Bertrand, D, Besancon, M, Bigi, M, Bilenky, MS, Bizouard, MA, Bloch, D, Blom, HM, Bonesini, M, Boonekamp, M, Booth, PSL, Borgland, AW, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, TJV, Boyko, I, Bozovic, I, Bozzo, B, Bracko, M, Branchini, P, Brenner, RA, Bruckman, P, Brunet, JM, Bugge, L, Buran, T, Buschbeck, B, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, MVC, Cattai, A, Cavallo, FR, Chabaud, V, Chapkin, M, Charpentier, P, Checchia, P, Chelkov, GA, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, HB, Crennell, D, Crepe, S, Crosetti, G, Maestro, JC, Czellar, S, Davenport, M, Da Silva, W, Della Ricca, G, Delpierre, P, Demaria, N, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Min, A, De Paula, L, Dijkstra, H, Di Ciaccio, L, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Duperrin, A, Durand, JD, Eigen, G, Ekelof, T, Ekspong, G, Ellert, M, Elsing, M, Engel, JP, Santo, ME, Fanourakis, G, Fassouliotis, D, Fayot, J, Feindt, M, Ferrer, A, Ferrer-Ribas, E, Ferro, F, Fichet, S, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, AG, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, EN, Gele, D, Geralis, T, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez-Ceballos, G, Goncalves, P, Caballero, IG, Gopal, G, Gorn, L, Gouz, Y, Cracco, V, Grahl, J, Graziani, E, Gris, P, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, FJ, Hedberg, V, Heising, S, Hernandez, JJ, Herquet, P, Herr, H, Hessing, TL, Heuser, JM, Higon, E, Holmgren, SO, Holt, PJ, Hoorelbeke, S, Houlden, M, Hrubec, J, Huber, M, Huet, K, Hughes, GJ, Hultqvist, K, Jackson, JN, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Jeans, D, Johansson, EK, Jonsson, P, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, EC, Keranen, R, Kernel, G, Kersevan, BP, Khokhlov, Y, Khomenko, BA, Khovanski, NN, Kiiskinen, A, King, B, Kinvig, A, Kjaer, NJ, Klapp, O, Klein, H, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kurowska, J, Kurvinen, K, Lamsa, JW, Lane, DW, Lapin, V, Laugier, JP, Lauhakangas, R, Leder, G, Ledroit, F, Lefebure, V, Leinonen, L, Leisos, A, Leitner, R, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Loerstad, B, Loken, JG, Lopes, JH, Lopez, JM, Lopez-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J, Mahon, JR, Maio, A, Malek, A, Malmgren, TGM, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, JC, Mariotti, C, Markou, A, Martinez-Rivero, C, Martinez-Vidal, F, Garcia, SMI, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, Mc Cubbin, M, Mc Kay, R, Mc Nulty, R, Mc Pherson, G, Meroni, C, Meyer, WT, Miagkov, A, Migliore, E, Mirabito, L, Mitaroff, WA, Mjoernmark, U, Moa, T, Moch, M, Moeller, R, Moenig, K, Monge, MR, Moraes, D, Moreau, X, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mulet-Marquis, C, Muresan, R, Murray, WJ, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Nassiakou, M, Navarria, FL, Navas, S, Nawrocki, K, Negri, P, Neufeld, N, Nicolaidou, R, Nielsen, BS, Niezurawski, P, Nikolenko, M, Nomokonov, V, Nygren, A, Obraztsov, V, Olshevski, AG, Onofre, A, Orava, R, Orazi, G, Osterberg, K, Ouraou, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopouloum, TD, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pavel, T, Pegoraro, M, Peralta, L, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, HT, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Pol, ME, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, PN, Read, AL, Rebecchi, P, Redaelli, NG, Regler, M, Rehn, J, Reid, D, Reinhardt, R, Renton, PB, Resvanis, LK, Richard, F, Ridky, J, Rinaudo, G, Ripp-Baudot, I, Rohne, O, Romero, A, Ronchese, P, Rosenberg, EI, Rosinsky, P, Roudeau, P, Rovelli, T, Royon, C, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, M, Sacquin, Y, Sadovsky, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Seager, P, Sedykh, Y, Segar, AM, Seibert, N, Sekulin, R, Shellard, RC, Siebel, M, Simard, L, Simonetto, F, Sisakian, AN, Smadja, G, Smirnova, O, Smith, GR, Solovianov, O, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Squarcia, S, Stanescu, C, Stanic, S, Stanitzki, M, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Taffard, A, Tegenfeldt, F, Terranova, F, Thomas, J, Timmermans, J, Tinti, N, Tkatchev, LG, Tobin, M, Todorova, S, Tomaradze, A, Tome, B, Tonazzo, A, Tortora, L, Tortosa, P, Transtromer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, ML, Tyapkin, IA, Tyapkin, P, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van Dam, P, Van den Boeck, W, Van Doninck, WK, Van Eldik, J, Van Lysebetten, A, van Remortel, N, Van Vulpen, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verdier, P, Verlato, M, Vertogradov, LS, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, AS, Voulgaris, G, Vrba, V, Wahlen, H, Walck, C, Washbrook, AJ, Weiser, C, Wicke, D, Wickens, JH, Wilkinson, GR, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, NI, Zintchenko, A, Zoller, P, Zucchelli, GC, Zumerle, G, and Collaboration, DELPHI
Subjects: DETECTOR, DELPHI
Published: 2000

14. Determination of P(c -> D*(+)) and BR(c -> l(+)) at LEP 1

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, Alderweireld, T, Alekseev, Gd, Alemany, R, Allmendinger, T, Allport, Pp, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anassontzis, Eg, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, Wd, Arnoud, Y, Asman, B, Augustin, Je, Augustinus, A, Baillon, P, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, Dy, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, Kh, Begalli, M, Behrmann, A, Beilliere, P, Belokopytov, Y, Benekos, Nc, Benvenuti, Ac, Berat, C, Berggren, M, Bertini, D, Bertrand, D, Besancon, M, Bigi, M, Bilenky, Ms, Bizouard, Ma, Bloch, D, Blom, Hm, Bonesini, M, Bonivento, W, Boonekamp, M, Booth, Psl, Borgland, Aw, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, Tjv, Boyko, I, Bozovic, I, Bozzo, M, Branchini, P, Brenke, T, Brenner, Ra, Bruckman, P, Brunet, Jm, Bugge, L, Buran, T, Burgsmueller, T, Buschbeck, B, Buschmann, P, Cabrera, S, Caccia, Massimo, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, Mvc, Cattai, A, Cavallo, Fr, Chabaud, V, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, Ga, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, Jh, Crawley, Hb, Crennell, D, Crepe, S, Crosetti, G, Maestro, Jc, Czellar, S, Davenport, M, DA SILVA, W, Deghorain, A, DELLA RICCA, G, Delpierre, P, Demaria, N, DE ANGELIS, A, DE BOER, W, DE CLERCQ, C, DE LOTTO, B, DE MIN, A, DE PAULA, L, Dijkstra, H, DI CIACCIO, L, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Duperrin, A, Durand, Jd, Eigen, G, Ekelof, T, Ekspong, G, Ellert, M, Elsing, M, Engel, Jp, Erzen, B, Santo, Me, Falk, E, Fanourakis, G, Fassouliotis, D, Fayot, J, Feindt, M, Ferrari, P, Ferrer, A, FERRER RIBAS, E, Ferro, F, Fichet, S, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, Ag, Fruhwirth, R, FULDA QUENZER, F, Fuster, J, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, En, Gele, D, Gerdyukov, L, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, GOMEZ CEBALLOS, G, Goncalves, P, Caballero, Ig, Gopal, G, Gorn, L, Gorski, M, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Green, C, Grimm, Hj, Gris, P, Grosdidier, G, Grzelak, K, Gunther, M, Guy, J, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, Fj, Hedberg, V, Heising, S, Hernandez, Jj, Herquet, P, Herr, H, Hessing, Tl, Heuser, Jm, Higon, E, Holmgren, So, Holt, Pj, Hoorelbeke, S, Houlden, M, Hrubec, J, Huet, K, Hughes, Gj, Hultqvist, K, Jackson, Jn, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, JEAN MARIE, B, Johansson, Ek, Jonsson, P, Joram, C, Juillot, P, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, Ec, Keranen, R, Kersevan, Bp, Khomenko, Ba, Khovanski, Nn, Kiiskinen, A, King, B, Kinvig, A, Kjaer, Nj, Klapp, O, Klein, H, Kluit, P, Kokkinias, P, Koratzinos, M, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krstic, J, Krumstein, Z, Kubinec, P, Kurowska, J, Kurvinen, K, Lamsa, Jw, Lane, Dw, Langefeld, P, Lapin, V, Laugier, Jp, Lauhakangas, R, Leder, G, Ledroit, F, Lefebure, V, Leinonen, L, Leisos, A, Leitner, R, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liko, D, Lipniacka, A, Lippi, I, Loerstad, B, Loken, Jg, Lopes, Jh, Lopez, Jm, LOPEZ FERNANDEZ, R, Loukas, D, Lutz, P, Lyons, L, Macnaughton, J, Mahon, Jr, Maio, A, Malek, A, Malmgren, Tgm, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, Jc, Mariotti, C, Markou, A, MARTINEZ RIVERO, C, MARTINEZ VIDAL, F, GARCIA SM, I., Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, MC CUBBIN, M, MC KAY, R, MC NULTY, R, MC PHERSON, G, Meroni, C, Meyer, Wt, Miagkov, A, Migliore, E, Mirabito, L, Mjoernmark, U, Moa, T, Moch, M, Moeller, R, Moenig, K, Monge, Mr, Moreau, X, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, MULET MARQUIS, C, Muresan, R, Murray, Wj, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Nassiakou, M, Navarria, Fl, Navas, S, Nawrocki, K, Negri, P, Nemecek, S, Neufeld, N, Neumeister, N, Nicolaidou, R, Nielsen, Bs, Nikolenko, M, Nomokonov, V, Normand, A, Nygren, A, Obraztsov, V, Olshevski, Ag, Onofre, A, Orava, R, Orazi, G, Osterberg, K, Ouraou, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, Td, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pegoraro, M, Peralta, L, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, Ht, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Pol, Me, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Ratoff, Pn, Read, Al, Rebecchi, P, Redaelli, Ng, Regler, M, Reid, D, Reinhardt, R, Renton, Pb, Resvanis, Lk, Richard, F, Ridky, J, Rinaudo, G, Rohne, O, Romero, A, Ronchese, P, Rosenberg, Ei, Rosinsky, P, Roudeau, P, Rovelli, T, Royon, C, RUHLMANN KLEIDER, V, Ruiz, A, Saarikko, H, Sacquin, Y, Sadovsky, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Schneider, H, Schwemling, P, Schwering, B, Schwickerath, U, Schyns, Mae, Scuri, F, Seager, P, Sedykh, Y, Segar, Am, Sekulin, R, Shellard, Rc, Sheridan, A, Siebel, M, Simard, L, Simonetto, F, Sisakian, An, Smadja, G, Smirnov, N, Smirnova, O, Smith, Gr, Solovianov, O, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stanic, S, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Tegenfeldt, F, Terranova, F, Thomas, J, Timmermans, J, Tinti, N, Tkatchev, Lg, Todorova, S, Tomaradze, A, Tome, B, Tonazzo, A, Tortora, L, Transtromer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Tsirou, A, Turluer, Ml, Tyapkin, Ia, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, VAN APELDOORN GW, VAN DAM, P, VAN ELDIK, J, VAN LYSEBETTEN, A, VAN REMORTEL, N, VAN VULPEN, I, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verlato, M, Vertogradov, Ls, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, As, Vollmer, C, Voulgaris, G, Vrba, V, Wahlen, H, Walck, C, Weiser, C, Wicke, D, Wickens, Jh, Wilkinson, Gr, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, Ni, Zucchelli, Gc, and Zumerle, G.
Published: 2000

15. Determination of vertical bar V-ub vertical bar/vertical bar V-cb vertical bar with DELPHI at LEP

Author: Abreu, P Adam, W Adye, T Adzic, P Albrecht, Z and Alderweireld, T Alekseev, GD Alemany, R Allmendinger, T and Allport, PP Almehed, S Amaldi, U Amapane, N Amato, S and Anassontzis, EG Andersson, P Andreazza, A Andringa, S and Antilogus, P Apel, WD Arnoud, Y Asman, B Augustin, JE and Augustinus, A Baillon, P Bambade, P Barao, F and Barbiellini, G Barbier, R Bardin, DY Barker, G and Baroncelli, A Battaglia, M Baubillier, M Becks, KH and Begalli, M Behrmann, A Beilliere, P Belokopytov, Y and Belous, K Benekos, M Benvenuti, AC Berat, C Berggren, M and Bertrand, D Besancon, M Bigi, M Bilenky, MS and Bizouard, MA Bloch, D Blom, HM Bonesini, M Boonekamp, M and Booth, PSL Borgland, AW Borisov, G Bosio, C Botner, O Boudinov, E Bouquet, B Bourdarios, C Bowcock, TJV and Boyko, I Bozovic, I Bozzo, M Bracko, M Branchini, P and Brenner, RA Bruckman, P Brunet, JM Bugge, L Buran, T and Buschbeck, B Buschmann, P Cabrera, S Caccia, M Calvi, M and Camporesi, T Canale, V Carena, F Carroll, L Caso, C and Gimenez, MVC Cattai, A Cavallo, FR Chabaud, V and Chapkin, M Charpentier, P Checchia, P Chelkov, GA and Chierici, R Chliapnikov, P Chochula, P Chorowicz, V and Chudoba, J Cieslik, K Collins, P Contri, R Cortina, E and Cosme, G Cossutti, F Crawley, HB Crennell, D Crepe, S Crosetti, G Maestro, JC Czellar, S Davenport, M Da Silva, W Della Ricca, G Delpierre, P Demaria, N De Angelis, A De Boer, W De Clercq, C Dolbeau, J Doroba, K and Dracos, M Drees, J Dris, M Duperrin, A Durand, JD and Eigen, G Ekelof, T Ekspong, G Ellert, M Elsing, M and Engel, MP Santo, ME Fanourakis, G Fassouliotis, D and Fayot, J Feindt, M Ferrer, A Ferrer-Ribas, E Ferro, F and Fichet, S Firestone, A Flagmeyer, U Foeth, H and Fokitis, E Fontanelli, F Franek, B Frodesen, AG and Fruhwirth, R Fulda-Quenzer, F Fuster, J Galloni, A and Gamba, D Gamblin, S Gandelman, M Garcia, C Gaspar, C and Gaspar, M Gasparini, U Gavillet, P Gazis, EN Gele, D and Ghodbane, N Gil, I Glege, F Gokieli, R Golob, B and Gomez-Ceballos, G Goncalves, P Caballero, IG Gopal, G and Gorn, L Gouz, Y Gracco, V Grahl, J Graziani, E Gris, P Grosdidier, G Grzelak, K Guy, J Haag, C Hahn, F and Hahn, S Haider, S Hallgren, A Hamacher, K Hansen, J and Harris, FJ Hedberg, V Heising, S Hernandez, JJ and Herquet, P Herr, H Hessing, TL Heuser, JM Higon, E and Holmgren, SO Holt, PJ Hoorelbeke, S Houlden, M Hrubec, J and Huber, M Huet, K Hughes, GJ Hultqvist, K Jackson, JN and Jacobsson, R Jalocha, P Janik, R Jarlskog, C and Jarlskog, G Jarry, P Jean-Marie, B Jeans, D Johansson, EK Jonsson, P Joram, C Juillot, P Jungermann, L and Kapusta, F Karafasoulis, K Katsanevas, S Katsoufis, EC and Keranen, R Kernel, G Kersevan, BP Khomenko, BA and Khovanski, NN Kiiskinen, A King, B Kinvig, A Kjaer, NJ and Klapp, O Klein, H Kluit, P Kokkinias, P and Kostioukhine, V Kourkoumelis, C Kouznetsov, O Krammer, M and Kriznic, E Krumstein, Z Kubinec, P Kurowska, J Kurvinen, K Lamsa, JW Lane, DW Lapin, V Laugier, JP and Lauhakangas, R Leder, G Ledroit, F Lefebure, V Leinonen, L Leisos, A Leitner, R Lenzen, G Lepeltier, V and Lesiak, T Lethuillier, M Libby, J Liebig, W Liko, D and Lipniacka, A Lippi, I Loerstad, B Loken, JG Lopes, JH and Lopez, JM Lopez-Fernandez, R Loukas, D Lutz, P and Lyons, L MacNaughton, J Mahon, JR Maio, A Malek, A and Malmgren, TGM Maltezos, S Malychev, V Mandl, F Marco, J and Marco, R Marechal, B Margoni, M Marin, JC Mariotti, C Markou, A Martinez-Rivero, C Martinez-Vidal, F Garcia, SMI Masik, J Mastroyiannopoulos, N Matorras, F and Matteuzzi, C Matthiae, G Mazzucato, F Mazzucato, M and McCubbin, M McKay, R McNulty, R McPherson, G Meroni, C and Meyer, WT Migliore, E Mirabito, L Mitaroff, WA and Mjoernmark, U Moa, T Moch, M Moeller, R Moenig, K and Monge, MR Moraes, D Moreau, X Morettini, P Morton, G and Mueller, U Muenich, K Mulders, M Mulet-Marquis, C and Muresan, R Murray, WJ Muryn, B Myatt, G Myklebust, T and Naraghi, F Nassiakou, M Navarria, FL Navas, S Nawrocki, K Negri, P Neufeld, N Nicolaidou, R Nielsen, BS and Niezurawski, P Nikolenko, M Nomokonov, V Nygren, A and Obraztsov, V Olshevski, AG Onofre, A Orava, R Orazi, G and Osterberg, K Ouraou, A Paganoni, M Paiano, S Pain, R and Paiva, R Palacios, J Palka, H Papadopoulou, T and Papageorgiou, K Pape, L Parkes, C Parodi, F Parzefall, U and Passeri, A Passon, O Pavel, T Pegoraro, M Peralta, L and Pernicka, M Perrotta, A Petridou, C Petrolini, A and Phillips, HT Pierre, F Pimenta, M Piotto, E Podobnik, T and Pol, ME Polok, G Poropat, P Pozdniakov, V Privitera, P Pukhaeva, N Pullia, A Radojicic, D Ragazzi, S and Rahmani, H Rames, J Ratoff, PN Read, AL Rebecchi, P and Redaelli, NG Regler, M Rehn, J Reid, D Reinhardt, R and Renton, PB Resvanis, LK Richard, F Ridky, J Rinaudo, G and Ripp-Baudot, I Rohne, O Romero, A Ronchese, P and Rosenberg, EI Rosinsky, P Roudeau, P Rovelli, T Royon, C and Ruhlmann-Kleider, V Ruiz, A Saarikko, H Sacquin, Y and Sadovsky, A Sajot, G Salt, J Sampsonidis, D Sannino, M and Schwemling, P Schwering, B Schwickerath, U Scuri, F and Seager, P Sedykh, Y Segar, AM Seibert, N Sekulin, R and Shellard, RC Siebel, M Simard, L Simonetto, F Sisakian, AN Smadja, G Smirnova, O Smith, GR Sokolov, A and Solovianov, O Sopczak, A Sosnowski, R Spassov, T and Spiriti, E Squarcia, S Stanescu, C Stanic, S Stanitzki, M Stevenson, K Stocchi, A Strauss, J Strub, R Stugu, B Szczekowski, M Szeptycka, M Tabarelli, T Taffard, A and Tegenfeldt, F Terranova, F Thomas, I Timmermans, J and Tinti, N Tkatchev, LG Tobin, M Todorova, S Tomaradze, A and Tome, B Tonazzo, A Tortora, L Tortosa, P and Transtromer, G Treille, D Tristram, G Trochimczuk, M and Troncon, C Turluer, ML Tyapkin, IA Tzamarias, S and Ullaland, O Uvarov, V Valenti, G Vallazza, E Vander Velde, C Van Dam, P Van den Boeck, W Van Doninck, WK Van Eldik, J Van Lysebetten, A van Remortel, N Van Vulpen, I and Vegni, G Ventura, L Venus, W Verbeure, F Verdier, P and Verlato, M Vertogradov, LS Verzi, V Vilanova, D Vitale, L Vlasov, E Vodopyanov, AS Voulgaris, G Vrba, V and Wahlen, H Walck, C Washbrook, AJ Weiser, C Wicke, D and Wickens, JH Wilkinson, GR Winter, M Witek, M Wolf, G and Yi, J Yushchenko, O Zaitsev, A Zalewska, A Zalewski, P and Zavrtanik, D Zevgolatakos, E Zimin, NI Zintchenko, A and Zoller, P Zucchelli, GC Zumerle, G DELPHI Collaboration
Abstract: {The ratio of the CKM quark-mixing matrix elements \textbackslash{}V-ub\textbackslash{}/\textbackslash{}V-cb\textbackslash{ } has been measured using B hadron semileptonic decays. The analysis uses the reconstructed mass M-X of the secondary hadronic system produced in association with an identified lepton. Since B --> X(u)l (v) over bar transitions are characterised by hadronic masses below those of the D mesons produced in B --> X(c)l (v) over bar transitions, events with a reconstructed value of M-X significantly below the D mass are selected. Further signal enrichments are obtained using the topology of reconstructed decays and hadron identification. A fit to the numbers of decays in the b --> u enriched and depleted samples with M-X above and below 1.6 GeV/c(2) and to the shapes of the lepton energy distribution in the B rest frame gives \textbackslash{}V-ub\textbackslash{}/\textbackslash{}V-cb\textbackslash{ } = 0.103 (+0.011)(-0.012) (stat.) +/- 0.016(syst.) +/- 0.010(model) and, correspondingly, a charmless semileptonic B decay branching fraction of BR(B --> X(u)l (v) over bar)= (1.57 +/- 0.35 (stat.) +/- 0.48(syst.) +/- 0.27(model)) x 10(-3). (C) 2000 Published by Elsevier Science B.V. All rights reserved.}
Published: 2000

16. Update of the search for charginos nearly mass-degenerate with the lightest neutralino

Author: Abreu, P Adam, W Adye, T Adzic, P Ajinenko, I and Albrecht, Z Alderweireld, T Alekseev, GD Alemany, R and Allmendinger, T Allport, PP Almehed, S Amaldi, U and Amapane, N Amato, S Anassontzis, EG Andersson, P and Andreazza, A Andringa, S Antilogus, P Apel, WD Arnoud, Y and Asman, B Augustin, JE Augustinus, A Baillon, P and Ballestrero, A Bambade, P Barao, F Barbiellini, G and Barbier, R Bardin, DY Barker, G Baroncelli, A Battaglia, M Baubillier, M Becks, KH Begalli, M Behrmann, A and Beilliere, P Belokopytov, Y Benekos, NC Benvenuti, AC and Berat, C Berggren, M Bertrand, D Besancon, M Bigi, M and Bilenky, MS Bizouard, MA Bloch, D Blom, HM Bonesini, M and Boonekamp, M Booth, PSL Borgland, AW Borisov, G and Bosio, C Botner, O Boudinov, E Bouquet, B Bourdarios, C and Bowcock, TJV Boyko, I Bozovic, I Bozzo, M Bracko, M and Branchini, P Brenner, RA Bruckman, P Brunet, JM and Bugge, L Buran, T Buschbeck, B Buschmann, P Cabrera, S and Caccia, M Calvi, M Camporesi, T Canale, V Carena, F and Carroll, L Caso, C Gimenez, MVC Cattai, A Cavallo, FR Chabaud, V Charpentier, P Checchia, P Chelkov, GA and Chierici, R Chliapnikov, P Chochula, P Chorowicz, V and Chudoba, J Cieslik, K Collins, P Contri, R Cortina, E and Cosme, G Cossutti, F Crawley, HB Crennell, D Crepe, S Crosetti, G Maestro, JC Czellar, S Davenport, M Da Silva, W Della Ricca, G Delpierre, P Demaria, N De Angelis, A De Boer, W De Clercq, C De Lotto, B De Min, A and De Paula, L Dijkstra, H Di Ciaccio, L Dolbeau, J and Doroba, K Dracos, M Drees, J Dris, M Duperrin, A and Durand, JD Eigen, G Ekelof, T Ekspong, G Ellert, M and Elsing, M Engel, JP Santo, ME Fanourakis, G and Fassouliotis, D Fayot, J Feindt, M Ferrer, A and Ferrer-Ribas, E Ferro, F Fichet, S Firestone, A and Flagmeyer, U Foeth, H Fokitis, E Fontanelli, F Franek, B and Frodesen, AG Fruhwirth, R Fulda-Quenzer, F Fuster, J and Galloni, A Gamba, D Gamblin, S Gandelman, M Garcia, C and Gaspar, C Gaspar, M Gasparini, U Gavillet, P Gazis, EN Gele, D Geralis, T Gerdyukov, L Ghodbane, N Gil, I Glege, F Gokieli, R Golob, B Gomez-Ceballos, G and Goncalves, P Caballero, IG Gopal, G Gorn, L Gouz, Y and Gracco, V Grahl, J Graziani, E Gris, P Grosdidier, G and Grzelak, K Guy, J Haag, C Hahn, F Hahn, S Haider, S and Hallgren, A Hamacher, K Hansen, J Harris, FJ Hauler, F Hedberg, V Heising, S Hernandez, JJ Herquet, P and Herr, H Hessing, TL Heuser, JM Higon, E Holmgren, SO and Holt, PJ Hoorelbeke, S Houlden, M Hrubec, J Huber, M and Huet, K Hughes, GJ Hultqvist, K Jackson, JN Jacobsson, R and Jalocha, P Janik, R Jarlskog, C Jarlskog, G Jarry, P and Jean-Marie, B Jeans, D Johansson, EK Jonsson, P and Joram, C Juillot, P Jungermann, L Kapusta, F and Karafasoulis, K Katsanevas, S Katsoufis, EC Keranen, P and Kernel, G Kersevan, BP Khokhlov, Y Khomenko, BA and Khovanski, NN Kiiskinen, A King, B Kinvig, A Kjaer, NJ and Klapp, O Klein, H Kluit, P Kokkinias, P and Kostioukhine, V Kourkoumelis, C Kouznetsov, O Krammer, M and Kriznic, E Krumstein, Z Kubinec, P Kurowska, J Kurvinen, K Lamsa, JW Lane, DW Laugier, JP Lauhakangas, R and Leder, G Ledroit, F Lefebure, V Leinonen, L Leisos, A and Leitner, R Lenzen, G Lepeltier, V Lesiak, T and Lethuillier, M Libby, J Liebig, W Liko, D Lipniacka, A and Lippi, I Loerstad, B Loken, JG Lopes, JH Lopez, JM and Lopez-Fernandez, R Loukas, D Lutz, P Lyons, L and MacNaughton, J Mahon, JR Maio, A Malek, A Malmgren, TGM and Maltezos, S Malychev, V Mandl, F Marco, J Marco, R and Marechal, B Margoni, M Marin, JC Mariotti, C Markou, A Martinez-Rivero, C Martinez-Vidal, F Garcia, SMI and Masik, J Mastroyiannopoulos, N Matorras, F Matteuzzi, C and Matthiae, G Mazzucato, F Mazzucato, M Mc Cubbin, M Mc Kay, R Mc Nulty, R Pherson, GM Meroni, C Meyer, WT and Migliore, E Mirabito, L Mitaroff, WA Mjoernmark, U Moa, T Moch, M Moeller, R Moenig, K Monge, MR Moraes, D and Moreau, X Morettini, P Morton, G Mueller, U Muenich, K Mulders, M Mulet-Marquis, C Muresan, R Murray, WJ and Muryn, B Myatt, G Myklebust, T Naraghi, F Nassiakou, M and Navarria, FL Navas, S Nawrocki, K Negri, P Neufeld, N Nicolaidou, R Nielsen, BS Niezurawski, P Nikolenko, M and Nomokonov, V Nygren, A Obraztsov, V Olshevski, AG and Onofre, A Orava, R Orazi, G Osterberg, K Ouraou, A and Paganoni, M Paiano, S Pain, R Paiva, R Palacios, J and Palka, H Papadopoulou, TD Pape, L Parkes, C Parodi, F and Parzefall, U Passeri, A Passon, O Pavel, T Pegoraro, M Peralta, L Pernicka, M Perrotta, A Petridou, C and Petrolini, A Phillips, HT Pierre, F Pimenta, M Piotto, E and Podobnik, T Pol, ME Polok, G Poropat, P Pozdniakov, V Privitera, P Pukhaeva, N Pullia, A Radojicic, D and Ragazzi, S Rahmani, H Rames, J Ratoff, PN Read, AL and Rebecchi, P Redaelli, NG Regler, M Rehn, J Reid, D and Reinhardt, R Renton, PB Resvanis, LK Richard, F Ridky, J and Rinaudo, G Ripp-Baudot, I Rohne, O Romero, A and Ronchese, P Rosenberg, EI Rosinsky, P Roudeau, P and Rovelli, T Royon, C Ruhlmann-Kleider, V Ruiz, A and Saarikko, H Sacquin, Y Sadovsky, A Sajot, G Salt, J and Sampsonidis, D Sannino, M Schwemling, P Schwering, B and Schwickerath, U Scuri, F Seager, P Sedykh, Y Segar, AM and Seibert, N Sekulin, R Shellard, RC Siebel, M Simard, L Simonetto, F Sisakian, AN Smadja, G Smirnov, N and Smirnova, O Smith, GR Sokolov, A Sopczak, A Sosnowski, R and Spassov, T Spiriti, E Squarcia, S Stanescu, C and Stanic, S Stanitzki, M Stevenson, K Stocchi, A Strauss, J Strub, R Stugu, B Szczekowski, M Szeptycka, M and Tabarelli, T Taffard, A Tchikilev, O Tegenfeldt, F and Terranova, F Thomas, J Timmermans, J Tinti, N Tkatchev, LG Tobin, M Todorova, S Tomaradze, A Tome, B and Tonazzo, A Tortora, L Tortosa, P Transtromer, G Treille, D Tristram, G Trochimczuk, M Troncon, C Turluer, ML and Tyapkin, IA Tyapkin, P Tzamarias, S Ullaland, O Uvarov, V Valenti, G Vallazza, E Van Dam, P Van den Boeck, W and Van Eldik, J Van Lysebetten, A van Remortal, N Van Vulpen, I and Vegni, G Ventura, L Venus, W Verbeure, F Verdier, P and Verlato, M Vertogradov, LS Verzi, V Vilanova, D and Vitale, L Vlasov, E Vodopyanov, AS Voulgaris, G Vrba, V and Wahlen, H Walck, C Washbrook, AJ Weiser, C Wicke, D and Wickens, JH Wilkinson, GR Winter, M Witek, M Wolf, G and Yi, J Yushchenko, O Zalewska, A Zalewski, P and Zavrtanik, D Zevgolatakos, E Zimin, NI Zintchenko, A and Zoller, P Zucchelli, GC Zumerle, G DELPHI Collaboration
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, Nuclear Experiment
Abstract: The data collected by DELPHI in 1998 at the centre-of-mass energy of 189 GeV have been used to update the search for charginos nearly mass-degenerate with the lightest supersymmetric particle, which is assumed to be the lightest neutralino. Mass differences below Delta M = 3 GeV/c(2) are considered. No excess of events with respect to the Standard Model expectation has been observed, and exclusions in the plane of Delta M versus chargino mass are given. The new Delta M independent lower limit on the mass of the chargino is 62.4 GeV/c(2) in the higgsino scenario (which includes the gaugino mass unification scenario), if all sfermions are heavier than the lightest chargino. In the approximation of large sfermion masses the limit is 59.8 GeV/c(2), independently of the field content. (C) 2000 Published by Elsevier Science B.V.
Published: 2000

17. Lambda(b) polarization in Z(0) decays at LEP

Author: Abreu, P Adam, W Adye, T Adzic, P Ajinenko, I and Albrecht, Z Alderweireld, T Alekseev, GD Alemany, R and Allmendinger, T Allport, PP Almehed, S Amaldi, U and Amapane, N Amato, S Anassontzis, EG Andersson, P and Andreazza, A Andringa, S Antilogus, P Apel, WD Arnoud, Y and Asman, B Augustin, JE Augustinus, A Baillon, P and Bambade, P Barao, F Barbiellini, G Barbier, R Bardin, DY and Barker, G Baroncelli, A Battaglia, M Baubillier, M and Becks, KH Begalli, M Behrmann, A Beilliere, P and Belokopytov, Y Benekos, NC Benvenuti, AC Berat, C and Berggren, M Bertini, D Bertrand, D Besancon, M Bigi, M and Bilenky, MS Bizouard, MA Bloch, D Blom, HM Bonesini, M Bonivento, W Boonekamp, M Booth, PSL Borgland, AW and Borisov, G Bosio, C Botner, O Boudinov, E Bouquet, B and Bourdarios, C Bowcock, TJV Boyko, I Bozovic, I Bozzo, M and Bracko, M Branchini, P Brenner, RA Bruckman, P and Brunet, JM Bugge, L Buran, T Buschbeck, B Buschmann, P and Cabrera, S Caccia, M Calvi, M Camporesi, T Canale, V and Carena, F Carroll, L Caso, C Gimenez, MVC Cattai, A and Cavallo, FR Chabaud, V Charpentier, P Chaussard, L and Checchia, P Chelkov, GA Chierici, R Chliapnikov, P and Chochula, P Chorowicz, V Chudoba, J Cieslik, K Collins, P Contri, R Cortina, E Cosme, G Cossutti, F Crawley, HB Crennell, D Crepe, S Crosetti, G Maestro, JC and Czellar, S Davenport, M Da Silva, W Della Ricca, G and Delpierre, P Demaria, N De Angelis, A De Boer, W De Clercq, C De Lotto, B De Min, A De Paula, L Dijkstra, H and Di Ciaccio, L Dolbeau, J Doroba, K Dracos, M Drees, J Dris, M Duperrin, A Durand, JD Eigen, G Ekelof, T and Ekspong, G Ellert, M Elsing, M Engel, JP Santo, ME and Fanourakis, G Fassouliotis, D Fayot, J Feindt, M and Fenyuk, A Ferrari, P Ferrer, A Ferrer-Ribas, E Ferro, F and Fichet, S Firestone, A Flagmeyer, U Foeth, H and Fokitis, E Fontanelli, F Franek, B Frodesen, AG and Fruhwirth, R Fulda-Quenzer, F Fuster, J Galloni, A and Gamba, D Gamblin, S Gandelman, M Garcia, C Gaspar, C and Gaspar, M Gasparini, U Gavillet, P Gazis, EN Gele, D and Ghodbane, N Gil, I Glege, F Gokieli, R Golob, B and Gomez-Ceballos, G Goncalves, P Caballero, IG Gopal, G and Gorn, L Gouz, Y Gracco, V Grahl, J Graziani, E Gris, P Grosdidier, G Grzelak, K Guy, J Hahn, F Hahn, S and Haider, S Hallgren, A Hamacher, K Hansen, J Harris, FJ Hedberg, V Heising, S Hernandez, JJ Herquet, P and Herr, H Hessing, TL Heuser, JM Higon, E Holmgren, SO and Holt, PJ Hoorelbeke, S Houlden, M Hrubec, J Huber, M and Huet, K Hughes, GJ Hultqvist, K Jackson, JN Jacobsson, R and Jalocha, P Janik, R Jarlskog, C Jarlskog, G Jarry, P and Jean-Marie, B Jeans, D Johansson, EK Jonsson, P and Joram, C Juillot, P Jungermann, L Kapusta, F and Karafasoulis, K Katsanevas, S Katsoufis, EC Keranen, R and Kernel, G Kersevan, BP Khomenko, BA Khovanski, NN and Kiiskinen, A King, B Kinvig, A Kjaer, NJ Klapp, O and Klein, H Kluit, P Kokkinias, P Kostioukhine, V and Kourkoumelis, C Kouznetsov, O Krammer, M Kriznic, E and Krumstein, Z Kubinec, P Kurowska, J Kurvinen, K Lamsa, JW Lane, DW Lapin, V Laugier, JP Lauhakangas, R and Leder, G Ledroit, F Lefebure, V Leinonen, L Leisos, A and Leitner, R Lenzen, G Lepeltier, V Lesiak, T and Lethuillier, M Libby, J Liebig, W Liko, D Lipniacka, A and Lippi, I Loerstad, B Loken, JG Lopes, JH Lopez, JM and Lopez-Fernandez, R Loukas, D Lutz, P Lyons, L and MacNaughton, J Mahon, JR Maio, A Malek, A Malmgren, TGM and Maltezos, S Malychev, V Mandl, F Marco, J Marco, R and Marechal, B Margoni, M Marin, JC Mariotti, C Markou, A Martinez-Rivero, C Martinez-Vidal, F Garcia, SMI and Masik, J Mastroyiannopoulos, N Matorras, F Matteuzzi, C and Matthiae, G Mazzucato, F Mazzucato, M Mc Cubbin, M Mc Kay, R Mc Nulty, R Mc Pherson, G Meroni, C Meyer, WT and Miagkov, A Migliore, E Mirabito, L Mitaroff, WA and Mjoernmark, U Moa, T Moch, M Moeller, R Moenig, K and Monge, MR Moreau, X Morettini, P Morton, G Mueller, U and Muenich, K Mulders, M Mulet-Marquis, C Muresan, R and Murray, WJ Muryn, B Myatt, G Myklebust, T Naraghi, F and Nassiakou, M Navarria, FL Navas, S Nawrocki, K Negri, P and Neufeld, N Nicolaidou, R Nielsen, BS Niezurawski, P and Nikolenko, M Nomokonov, V Nygren, A Obraztsov, V and Olshevski, AG Onofre, A Orava, R Orazi, G Osterberg, K and Ouraou, A Paganoni, M Paiano, S Pain, R Paiva, R and Palacios, J Palka, H Papadopoulou, TD Papageorgiou, K and Pape, L Parkes, C Parodi, F Parzefall, U Passeri, A and Passon, O Pavel, T Pegoraro, M Peralta, L Pernicka, M and Perrotta, A Petridou, C Petrolini, A Phillips, HT and Pierre, F Pimenta, M Piotto, E Podobnik, T Pol, ME and Polok, G Poropat, P Pozdniakov, V Privitera, P Pukhaeva, N Pullia, A Radojicic, D Ragazzi, S Rahmani, H and Rames, J Ratoff, PN Read, AL Rebecchi, P Redaelli, NG and Regler, M Rehn, J Reid, D Reinhardt, R Renton, PB and Resvanis, LK Richard, F Ridky, J Rinaudo, G and Ripp-Baudot, I Rohne, O Romero, A Ronchese, P Rosenberg, EI Rosinsky, P Roudeau, P Rovelli, T Royon, C and Ruhlmann-Kleider, V Ruiz, A Saarikko, H Sacquin, Y and Sadovsky, A Sajot, G Salt, J Sampsonidis, D Sannino, M and Schwemling, P Schwering, B Schwickerath, U Scuri, F and Seager, P Sedykh, Y Segar, AM Seibert, N Sekulin, R and Shellard, RC Siebel, M Simard, L Simonetto, F Sisakian, AN Smadja, G Smirnov, N Smirnova, O Smith, GR and Sopczak, A Sosnowski, R Spassov, T Spiriti, E Squarcia, S Stanescu, C Stanic, S Stanitzki, M Stevenson, K and Stocchi, A Strauss, J Strub, R Stugu, B Szczekowski, M and Szeptycka, M Tabarelli, T Taffard, A Tchikilev, O and Tegenfeldt, F Terranova, F Thomas, J Timmermans, J and Tinti, N Tkatchev, LG Tobin, M Todorova, S Tomaradze, A and Tome, B Tonazzo, A Tortora, L Tortosa, P and Transtromer, G Treille, D Tristram, G Trochimczuk, M and Troncon, C Turluer, ML Tyapkin, IA Tzamarias, S and Ullaland, O Uvarov, V Valenti, G Vallazza, E Van Dam, P and Van den Broeck, W Van Eldik, J Van Lysebetten, A van Remortel, N Van Vulpen, I Vegni, G Ventura, L Venus, W and Verbeure, F Verlato, M Vertogradov, LS Verzi, V and Vilanova, D Vitale, L Vlasov, E Vodopyanov, AS and Voulgaris, G Vrba, V Wahlen, H Walck, C Washbrook, AJ and Weiser, C Wicke, D Wickens, JH Wilkinson, GR Winter, M Witek, M Wolf, G Yi, J Yushchenko, O Zalewska, A and Zalewski, P Zavrtanik, D Zevgolatakos, E Zimin, NI and Zintchenko, A Zoller, P Zucchelli, GC Zumerle, G DELPHI Collaboration
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, Astrophysics::Cosmology and Extragalactic Astrophysics
Abstract: The longitudinal polarization of the Lambda(b) baryon is measured at the LEP e(+)e(-) collider by DELPHI. It is determined from the charged lepton and neutrino energy spectra in 249 +/- 19 Lambda(b) semileptonic decays reconstructed in approximate to 3.5 million hadronic Z(0) decays using Lambda(0)-lepton correlations. The measured polarization is: P-Lambda b = -0.49(-0.30)(+0.32)(stat.) +/- 0.17(syst.). (C) Elsevier Science B.V. All rights reserved.
Published: 2000

18. Upper limit for the decay B- -> tau(-)(v)over-bar(tau) the b -> tau(v)over-bar(tau)X branching ratio

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, Alderweireld, T, Alekseev, GD, Alemany, R, Allmendinger, T, Allport, PP, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anassontzis, EG, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, WD, Arnoud, Y, Asman, B, Augustin, JE, Augustinus, A, Baillon, P, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, DY, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, KH, Begalli, M, Behrmann, A, Beilliere, P, Belokopytov, Y, Benekos, NC, Benvenuti, AC, Berat, C, Berggren, M, Bertrand, D, Besancon, M, Bigi, M, Bilenky, MS, Bizouard, MA, Bloch, D, Blom, HM, Bonesini, M, Boonekamp, M, Booth, PSL, Borgland, AW, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, TJV, Boyko, I, Bozovic, I, Bozzo, M, Bracko, M, Branchini, P, Brenner, RA, Bruckman, P, Brunet, JM, Bugge, L, Buran, T, Buschbeck, B, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, MVC, Cattai, A, Cavallo, FR, Chabaud, V, Charpentier, P, Checchia, P, Chelkov, GA, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, HB, Crennell, D, Crepe, S, Crosetti, G, Maestro, JC, Czellar, S, Davenport, M, Da Silva, W, Della Ricca, G, Delpierre, P, Demaria, N, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Min, A, De Paula, L, Dijkstra, H, Di Ciaccio, L, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Duperrin, A, Durand, JD, Eigen, G, Ekelof, T, Ekspong, G, Ellert, M, Elsing, M, Engel, JP, Santo, ME, Fanourakis, G, Fassouliotis, D, Fayot, J, Feindt, M, Ferrer, A, Ferrer-Ribas, E, Ferro, F, Fichet, S, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, AG, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, EN, Gele, D, Geralis, T, Gerdyukov, L, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez-Ceballos, G, Goncalves, P, Caballero, IG, Gopal, G, Gorn, L, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Gris, P, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, FJ, Hedberg, V, Heising, S, Hernandez, JJ, Herquet, P, Herr, H, Hessing, TL, Heuser, JM, Higon, E, Holmgren, SO, Holt, PJ, Hoorelbeke, S, Houlden, M, Hrubec, J, Huber, M, Huet, K, Hughes, GJ, Hultqvist, K, Jackson, JN, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Jeans, D, Johansson, EK, Jonsson, P, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, EC, Keranen, R, Kernel, G, Kersevan, BP, Khomenko, BA, Khovanski, NN, Kiiskinen, A, King, B, Kinvig, A, Kjaer, NJ, Klapp, O, Klein, H, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krstic, J, Krumstein, Z, Kubinec, P, Kurowska, J, Kurvinen, K, Lamsa, JW, Lane, DW, Lapin, V, Laugier, JP, Lauhakangas, R, Leder, G, Ledroit, F, Lefebure, V, Leinonen, L, Leisos, A, Leitner, R, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Loerstad, B, Loken, JG, Lopes, JH, Lopez, JM, Lopez-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J, Mahon, JR, Maio, A, Malek, A, Malmgren, TGM, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, JC, Mariotti, C, Markou, A, Martinez-Rivero, C, Martinez-Vidal, F, Garcia, SMI, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, Mc Cubbin, M, Mc Kay, R, Mc Nulty, R, Mc Pherson, G, Meroni, C, Meyer, WT, Miagkov, A, Migliore, E, Mirabito, L, Mitaroff, WA, Mjoernmark, U, Moa, T, Moch, M, Moeller, R, Moenig, K, Monge, MR, Moraes, D, Moreau, X, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mulet-Marquis, C, Muresan, R, Murray, WJ, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Nassiakou, M, Navarria, FL, Navas, S, Nawrocki, K, Negri, P, Neufeld, N, Nicolaidou, R, Nielsen, BS, Niezurawski, P, Nikolenko, M, Nomokonov, V, Nygren, A, Obraztsov, V, Olshevski, AG, Onofre, A, Orava, R, Orazi, G, Osterberg, K, Ouraou, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, TD, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pavel, T, Pegoraro, M, Peralta, L, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, HT, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Pol, ME, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, PN, Read, AL, Rebecchi, P, Redaelli, NG, Rehn, J, Reid, D, Reinhardt, R, Renton, PB, Resvanis, LK, Richard, F, Ridky, J, Rinaudo, G, Ripp-Baudot, I, Rohne, O, Romero, A, Ronchese, P, Rosenberg, EI, Rosinsky, P, Roudeau, P, Rovelli, T, Royon, C, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Y, Sadovsky, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Seager, P, Sedykh, Y, Segar, AM, Seibert, N, Sekulin, R, Shellard, RC, Siebel, M, Simard, L, Simonetto, F, Sisakian, AN, Smadja, G, Smirnov, N, Smirnova, O, Smith, GR, Sokolov, A, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Squarcia, S, Stanescu, C, Stanic, S, Stanitzki, M, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Taffard, A, Tegenfeldt, F, Terranova, F, Thomas, J, Timmermans, J, Tinti, N, Tkatchev, LG, Tobin, M, Todorova, S, Tomaradze, A, Tome, B, Tonazzo, A, Tortora, L, Tortosa, P, Transtromer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, ML, Tyapkin, IA, Tyapkin, P, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van Dam, P, Van den Boeck, W, Van Doninck, WK, Van Eldik, J, Van Lysebetten, A, van Remortel, N, Van Vulpen, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verdier, P, Verlato, M, Vertogradov, LS, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, AS, Voulgaris, G, Vrba, V, Wahlen, H, Walck, C, Washbrook, AJ, Weiser, C, Wicke, D, Wickens, JH, Wilkinson, GR, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, NI, Zintchenko, A, Zoller, P, Zucchelli, GC, Zumerle, G, and Collaboration, DELPHI
Subjects: S-GAMMA%22">B->S-GAMMA, MESONS
Published: 2000

19. Inclusive Sigma(-) and Lambda(1520) production in hadronic Z decays

Author: Abreu, P Adam, W Adye, T Adzic, P Ajinenko, I and Albrecht, Z Alderweireld, T Alekseev, GD Alemany, R and Allmendinger, T Allport, PP Almehed, S Amaldi, U and Amapane, N Amato, S Anassontzis, EG Andersson, P and Andreazza, A Andringa, S Antilogus, P Apel, WD Arnoud, Y and Asman, B Augustin, JE Augustinus, A Baillon, P and Ballestrero, A Bambade, P Barao, F Barbiellini, G and Barbier, R Bardin, DY Barker, G Baroncelli, A Battaglia, M Baubillier, M Becks, KH Begalli, M Behrmann, A and Beilliere, P Belokopytov, Y Benekos, NC Benvenuti, AC and Berat, C Berggren, M Bertrand, D Besancon, M Bigi, M and Bilenky, MS Bizouard, MA Bloch, D Blom, HM Bonesini, M and Boonekamp, M Booth, PSL Borisov, G Bosio, C Botner, O Boudinov, E Bouquet, B Bourdarios, C Bowcock, TJV and Boyko, I Bozovic, I Bozzo, M Bracko, M Branchini, P and Brenner, RA Bruckman, P Brunet, JM Bugge, L Buran, T and Buschbeck, B Buschmann, P Cabrera, S Caccia, M Calvi, M and Camporesi, T Canale, V Carena, F Carroll, L Caso, C and Gimenez, MVC Cattai, A Cavallo, FR Chabaud, V and Charpentier, P Checchia, P Chelkov, GA Chierici, R and Chliapnikov, P Chochula, P Chorowicz, V Chudoba, J and Cieslik, K Collins, P Contri, R Cortina, E Cosme, G and Cossutti, F Costa, M Crawley, HB Crennell, D Crepe, S and Crosetti, G Maestro, JC Czellar, S Davenport, M Da Silva, W Della Ricca, G Delpierre, P Demaria, N De Nagelis, A De Boer, W De Clercq, C De Lotto, B De Min, A and De Paula, L Dijkstra, H Di Ciaccio, L Dolbeau, J and Doroba, K Dracos, M Drees, J Dris, M Duperrin, A and Durand, JD Eigen, G Ekelof, T Ekspong, G Ellert, M and Elsing, M Engel, JP Santo, ME Fanourakis, G and Fassouliotis, D Fayot, J Feindt, M Ferrer, A and Ferrer-Ribas, E Ferro, F Fichet, S Firestone, A and Flagmeyer, U Foeth, H Fokitis, E Fontanelli, F Franek, B and Frodesen, AG Fruhwirth, R Fulda-Quenzer, F Fuster, J and Galloni, A Gamba, D Gamblin, S Gandelman, M Garcia, C and Gaspar, C Gaspar, M Gasparini, U Gavillet, P Gazis, EN Gele, D Geralis, T Gerdyukov, L Ghodbane, N Gil, I Glege, F Gokieli, R Golob, B Gomez-Ceballos, G and Goncalves, P Caballero, IG Gopal, G Gorn, L Gouz, Y and Gracco, V Grahl, J Graziani, E Gris, P Grosdidier, G and Grzelak, K Guy, J Haag, C Hahn, F Hahn, S Haider, S and Hallgren, A Hamacher, K Hansen, J Harris, FJ Hauler, F Hedberg, V Heising, S Hernandez, JJ Herquet, P and Herr, H Hessing, TL Heuser, JM Higon, E Holmgren, SO and Holt, PJ Hoorelbeke, S Houlden, M Hrubec, J Huber, M and Huet, K Hughes, GJ Hultqvist, K Jackson, JN Jacobsson, R and Jalocha, P Janik, R Jarlskog, C Jarlskog, G Jarry, P and Jean-Marie, B Jeans, D Johansson, EK Jonsson, P and Joram, C Juillot, P Jungermann, L Kapusta, F and Karafasoulis, K Katsanevas, S Katsoufis, EC Keranen, R and Kernel, G Kersevan, BP Khokhlov, Y Khomenko, BA and Khovanski, NN Kiiskinen, A King, B Kinvig, A Kjaer, NJ and Klapp, O Klein, H Kluit, P Kokkinias, P and Kostioukhine, V Kourkoumelis, C Kouznetsov, O Krammer, M and Kriznic, E Krumstein, Z Kubinec, P Kurowska, J Kurvinen, K Lamsa, JW Lane, DW Laugier, JP Lauhakangas, R and Leder, G Ledroit, F Lefebure, V Leinonen, L Leisos, A and Leitner, R Lenzen, G Lepeltier, V Lesiak, T and Lethuillier, M Libby, J Liebig, W Liko, D Lipniacka, A and Lippi, I Loerstad, B Loken, JG Lopes, JH Lopez, JM and Lopez-Fernandez, R Loukas, D Lutz, P Lyons, L and MacNaughton, J Mahon, JR Maio, A Malek, A Lutz, P and Lyons, L MacNaughton, J Mahon, JR Maio, A Malek, A and Malmgren, TGM Maltezos, S Malychev, V Mandl, F Marco, J and Marco, R Marechal, B Margoni, M Marin, JC Mariotti, C Markou, A Martinez-Rivero, C Garcia, SMI Masik, J and Matroyiannopoulos, N Matorras, F Matteuzzi, C Matthiae, G and Mazzucato, F Mazzucato, M McCubbin, M McKay, R and McNulty, R McPherson, G Meroni, C Meyer, WT Migliore, E and Mirabito, L Mitaroff, WA Mjoernmark, U Moa, T Moch, M Moeller, R Moenig, K Monge, MR Moraes, D Moreau, X and Morettini, P Morton, G Mueller, U Muenich, K and Mulders, M Mulet-Marquis, C Muresan, R Murray, WJ Muryn, B Myatt, G Myklebust, T Naraghi, F Nassiakou, M and Navarria, FL Nawrocki, K Negri, P Neufeld, N Nicolaidou, R Nielsen, BS Niezurawski, P Nikolenko, M Nomokonov, V and Nygren, A Obraztsov, V Olshevaki, AG Onofre, A and Orava, R Orazi, G Osterberg, K Ouraou, A Oyanguren, A and Paganoni, M Paiano, S Pain, R Paiva, R Palacios, J and Palka, H Papadopoulou, TD Pape, L Parkes, C Parodi, F Parzefall, U Passeri, A Passon, O Pavel, T and Pegoraro, M Peralta, L Pernicka, M Perrotta, A Petridou, C Petrolini, A Phillips, HT Pierre, F Pimenta, M and Piotto, E Podobnik, T Pol, ME Polok, G Poropat, P and Pozdniakov, V Privitera, P Pukhaeva, N Pullia, A and Radojicic, D Ragazzi, S Rahmani, H Rames, J Ratoff, PN and Read, AL Rebecchi, P Redaelli, NG Regler, M Rehn, J and Reid, D Reinertsen, P Reinhardt, R Renton, PB and Resvanis, LK Richard, F Ridky, J Rinaudo, G Ripp-Baudot, I Rohne, O Romero, A Ronchese, P Rosenberg, EI and Rosinksy, P Roudeau, P Rovelli, T Royon, C and Ruhlmann-Kleider, V Ruiz, A Saarikko, H Sacquin, Y and Sadovsky, A Sajot, G Salt, J Sampsonidis, D Sannino, M and Schwemling, P Schwering, B Schwickerath, U Scuri, F and Seager, P Sedykh, Y Seemann, F Segar, AM Seibert, N and Sekulin, R Shellard, RC Siebel, M Simard, L Simonetto, F and Sisakian, AN Smadja, G Smirnov, N Smirnova, O Smith, GR Sokolov, A Solovianov, O Sopczak, A Sosnowski, R and Spassov, T Spiriti, E Squarcia, S Stanescu, C Stanic, S and Stanitzki, M Stevenson, K Stocchi, A Strauss, J and Strub, R Stugu, B Szczekowski, M Szeptycka, M Tabarelli, T Taffard, A Tegenfeldt, F Terranova, F Thomas, J and Timmermans, J Tinti, N Tkatchev, LG Tobin, M Todorova, S and Tomaradze, A Tome, B Tonazzo, A Tortora, L Tortosa, P Transtromer, G Treille, D Tristram, G Trochimczuk, M and Troncon, C Turluer, ML Tyapkin, IA Tyapkin, P and Tzamarias, S Ullaland, O Uvarov, V Valenti, G Vallazza, E Van Dam, P Van den Boeck, W Van Eldik, J Van Lysebetten, A van Remortel, N Van Vulpen, I Vegni, G and Ventura, L Venus, W Verbeure, F Verdier, P Verlato, M and Vertogradov, LS Verzi, V Vilanova, D Vitale, L and Vlasov, E Vodopyanov, AS Voulgaris, G Vrba, V Wahlen, H and Walck, C Washbrook, AJ Weiser, C Wicke, D Wickens, JH Wilkinson, GR Winter, M Witek, M Wolf, G Yi, J and Yushchenko, O Zalewska, A Zalewski, P Zavrtanik, D and Zevgolatakos, E Zimin, NI Zintchenko, A Zoller, P and Zucchelli, GC Zumerle, G Beckmann, WOG DELPHI Collaboration
Subjects: High Energy Physics::Experiment, Nuclear Experiment
Abstract: Production of Sigma(-) and Lambda(1520) in hadronic Z decays has been measured using the DELPHI detector at LEP. The Sigma(-) is directly reconstructed as a charged track in the DELPHI microvertex detector and is identified by its Sigma –> n pi decay leading to a kink between the Sigma(-) and pi-track. The reconstruction of the Lambda(1520) resonance relies strongly on the particle identification capabilities of the barrel Ring Imaging Cherenkov detector and on the ionisation loss measurement of the TPC. Inclusive production spectra are measured for both particles. The production rates are measured to be [NSigma-/N-Z(had)] = 0.081 +/- 0.002 +/- 0.010, [N-Lambda(1520)/N-Z(had)] = 0.029 +/- 0.005 +/- 0.005. The production rate of the Lambda(1520) suggests that a large fraction of the stable baryons descend from orbitally excited baryonic states. It is shown that the baryon production rates in Z decays follow a universal phenomenological law related to isospin, strangeness and mass of the particles. (C) 2000 Elsevier Science B.V. All rights reserved.
Published: 2000

20. Search for SUSY with R-parity violating LL(E)over-bar couplings at root s=189 GeV

Author: Abreu, P Adam, W Adye, T Adzic, P Albrecht, Z and Alderweireld, T Alekseev, GD Alemany, R Allmendinger, T and Allport, PP Almehed, S Amaldi, U Amapane, N Amato, S and Anassontzis, EG Andersson, P Andreazza, A Andringa, S and Antilogus, P Apel, WD Arnoud, Y Asman, B Augustin, JE and Augustinus, A Baillon, P Ballestrero, A Bambade, P and Barao, F Barbiellini, G Barbier, R Bardin, DY Barker, G and Baroncelli, A Battaglia, M Baubillier, M Becks, KH and Begalli, M Behrmann, A Beilliere, P Belokopytov, Y and Belous, K Benekos, NC Benvenuti, AC Berat, C Berggren, M and Berntzon, L Bertrand, D Besancon, M Bilenky, MS and Bizouard, MA Bloch, D Blom, HM Bonesini, M Boonekamp, M and Booth, PSL Borisov, G Bosio, C Botner, O Boudinov, E and Bouquet, B Bourdarios, C Bowcock, TJV Boyko, I and Bozovic, I Bozzo, M Bracko, M Branchini, P Brenner, RA and Bruckman, P Brunet, JM Bugge, L Buran, T Buschbeck, B Buschmann, P Cabrera, S Caccia, M Calvi, M and Camporesi, T Canale, V Carena, F Carroll, L Caso, C and Gimenez, MVC Cattai, A Cavallo, FR Chapkin, M and Charpentier, P Checchia, P Chelkov, GA Chierici, R and Chliapnikov, P Chochula, P Chorowicz, V Chudoba, J and Cieslik, K Collins, P Cortina, E Cosme, G Cossutti, F and Costa, M Crawley, HB Crennell, D Crosetti, G and Maestro, JC Czellar, S D'Hondt, J Dalmau, J Davenport, M and Da Silva, W Della Ricca, G Delpierre, P Demaria, N and De Angelis, A De Boer, W De Clercq, C De Lotto, B De Min, A De Paula, L Dijkstra, H Di Ciaccio, L Dolbeau, J and Doroba, K Dracos, M Drees, J Dris, M Eigen, G and Ekelof, T Ellert, M Elsing, M Engel, JP Santo, ME and Fanourakis, G Fassouliotis, D Feindt, M Fernandez, J and Ferrer, A Ferrer-Ribas, E Ferro, F Firestone, A and Flagmeyer, U Foeth, H Fokitis, E Fontanelli, F Franek, B and Frodesen, AG Fruhwirth, R Fulda-Quenzer, F Fuster, J and Galloni, A Gamba, D Gamblin, S Gandelman, M Garcia, C and Gaspar, C Gaspar, M Gasparini, U Gavillet, P Gazis, EN Gele, D Geralis, T Ghodbane, N Gil, I Glege, F and Gokieli, R Golob, B Gomez-Ceballos, G Goncalves, P and Caballero, IG Gopal, C Gorn, L Gouz, Y Gracco, V and Grahl, J Graziani, E Gris, P Grosdidier, G Grzelak, K and Guy, J Haag, C Hahn, F Hahn, S Haider, S and Hallgren, A Hamacher, K Hansen, J Harris, FJ Hauler, F and Hedberg, V Heising, S Hernandez, JJ Herquet, P Herr, H Higon, E Holmgren, SO Holt, PJ Hoorelbeke, S and Houlden, M Hrubec, J Huber, M Hughes, GJ Hultqvist, K and Jackson, JN Jacobsson, R Jalocha, P Janik, R and Jarlskog, C Jarlskog, G Jarry, P Jean-Marie, B Jeans, D and Johansson, EK Jonsson, P Joram, C Juillot, P and Jungermann, L Kapusta, F Karafasoulis, K Katsanevas, S and Katsoufis, EC Keranen, R Kernel, G Kersevan, BP and Khokhlov, Y Khomenko, BA Khovanski, NN Kiiskinen, A and King, B Kinvig, A Kjaer, NJ Klapp, O Kluit, P and Kokkinias, P Kostioukhine, V Kourkoumelis, C Kouznetsov, O and Krammer, M Kriznic, E Krumstein, Z Kubinec, P and Kurowska, J Kurvinen, K Lamsa, JW Lane, DW Lapin, V and Laugier, JP Lauhakangas, R Leder, G Ledroit, F Leinonen, L Leisos, A Leitner, R Lemonne, J Lenzen, G and Lepeltier, V Lesiak, T Lethuillier, M Libby, J Liebig, W and Liko, D Lipniacka, A Lippi, I Loerstad, B Loken, JG and Lopes, JH Lopez, JM Lopez-Fernandez, R Loukas, D and Lutz, P Lyons, L MacNaughton, J Mahon, JR Maio, A and Malek, A Maltezos, S Malychev, V Mandl, F Marco, J and Marco, R Marechal, B Margoni, M Marin, JC Mariotti, C and Markou, A Martinez-Rivero, C Garcia, SMI Masik, J and Mastroyiannopoulos, N Matorras, F Matteuzzi, C Matthiae, G and Mazzucato, F Mazzucato, M Mc Cubbin, M Mc Kay, R Mc Nulty, R Mc Pherson, G Merle, E Meroni, C Meyer, WT and Miagkov, A Migliore, E Mirabito, L Mitaroff, WA and Mjoernmark, U Moa, T Moch, M Moeller, R Moenig, K and Monge, MR Moraes, D Morettini, P Morton, G Mueller, U and Muenich, K Mulders, M Mulet-Marquis, C Mundim, LM and Muresan, R Murray, WJ Muryn, B Myatt, G Myklebust, T and Naraghi, F Nassiakou, M Navarria, FL Nawrocki, K Negri, P Neufeld, N Nicolaidou, R Nielsen, BS Niezurawski, P and Nikolenko, M Nomokonov, V Nygren, A Obraztsov, V and Olshevski, AG Onofre, A Orava, R Orazi, G Osterberg, K and Ouraou, A Oyanguren, A Paganoni, M Paiano, S Pain, R and Paiva, R Palacios, J Palka, H Papadopoulou, TD Pape, L Parkes, C Parodi, F Parzefall, U Passeri, A and Passon, O Pavel, T Pegoraro, M Peralta, L Pernicka, M and Perrotta, A Petridou, C Petrolini, A Phillips, HT and Pierre, F Pimenta, M Piotto, E Podobnik, T Poireau, V and Pol, ME Polok, G Poropat, P Pozdniakov, V Privitera, P Pukhaeva, N Pullia, A Radojicic, D Ragazzi, S and Rahmani, H Rames, J Ratoff, PN Read, AL Rebecchi, P and Redaelli, NG Regler, M Rehn, J Reid, D Reinertsen, P and Reinhardt, R Renton, PB Resvanis, LK Richard, F Ridky, J and Rinaudo, G Ripp-Baudot, I Romero, A Ronchese, P and Rosenberg, EI Rosinsky, P Roudeau, P Rovelli, T and Ruhlmann-Kleider, V Ruiz, A Saarikko, H Sacquin, Y and Sadovsky, A Sajot, G Salt, J Sampsonidis, D Sannino, M and Savoy-Navarro, A Schwemling, P Schwering, B and Schwickerath, U Scuri, F Seager, P Sedykh, Y Segar, AM and Seibert, N Sekulin, R Sette, C Shellard, RC Siebel, M Simard, L Simonetto, F Sisakian, AN Smadja, G and Smirnova, O Smith, GR Solovianov, O Sopczak, A and Sosnowski, R Spassov, T Spiriti, E Squarcia, S Stanescu, C Stanitzki, M Stevenson, K Stocchi, A Strauss, J and Strub, R Stugu, B Szczekowski, M Szeptycka, M Tabarelli, T Taffard, A Tegenfeldt, F Terranova, F Timmermans, J and Tinti, N Tkatchev, LG Tobin, M Todorova, S Tome, B and Tonazzo, A Tortora, L Tortosa, P Transtromer, G and Treille, D Tristram, G Trochimczuk, M Troncon, C and Turluer, ML Tyapkin, IA Tyapkin, P Tzamarias, S and Ullaland, O Uvarov, V Valenti, G Vallazza, E Van Dam, P and Van den Boeck, W Van Eldik, J Van Lysebetten, A van Remortel, N Van Vulpen, I Vegni, G Ventura, L Venus, W and Verbeure, F Verdier, P Verlato, M Vertogradov, LS and Verzi, V Vilanova, D Vitale, L Vlasov, E Vodopyanov, AS and Voulgaris, G Vrba, V Wahlen, H Washbrook, AJ Weiser, C Wicke, D Wickens, JH Wilkinson, GR Winter, M and Witek, M Wolf, G Yi, J Yushchenko, O Zalewska, A and Zalewski, P Zavrtanik, D Zevgolatakos, E Zintchenko, A and Zoller, P Zumerle, G Zupan, M DELPHI Collaboration
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract: Searches for pair production of supersymmetric particles under the assumption that R-parity is not conserved are presented, based on data recorded by the DELPHI detector in 1998 from e(+)e(-) collisions at a centre-of-mass energy of 189 GeV. Only one R-parity violating LL (E) over bar term (i.e. one lambda coupling), which couples scalar leptons to leptons, is considered to be dominant at a time. Moreover, it is assumed that the strength of the R-parity violating couplings is such that the lifetimes can be neglected. The search for pair production of neutralinos, charginos and sleptons has been performed for both direct R-parity violating decays and indirect cascade decays. The results are in agreement with Standard Model expectations, and are used to update the constraints on the MSSM parameter values and the mass limits previously derived at root s = 183 GeV. The present 95% C.L. Limits on supersymmetric particle masses are: m(0) > 30 GeV/c(2) and m(+/-) > 94 GeV/c(2); m() > 76.5 GeV/c(2) (direct and indirect decays); m((l) over tilde R) > 83 GeV/c(2) (indirect decay only). (C) 2000 Elsevier Science B.V. All rights reserved.
Published: 2000

21. Hadronization properties of b quarks compared to light quarks in e(+)e(-)-> q(q)over-bar from 183 to 200 GeV

Author: Abreu, P Adam, W Adye, T Adzic, P Albrecht, Z and Alderweireld, T Alekseev, GD Alemany, R Allmendinger, T and Allport, PP Almehed, S Amaldi, U Amapane, N Amato, S and Anassontzis, EG Andersson, P Andreazza, A Andringa, S and Antilogus, P Apel, WD Arnoud, Y Asman, B Augustin, JE and Augustinus, A Baillon, P Ballestrero, A Bambade, P and Barao, F Barbiellini, G Barbier, R Bardin, DY Barker, G and Baroncelli, A Battaglia, M Baubillier, M Becks, KH and Begalli, M Behrmann, A Beilliere, P Belokopytov, Y and Belous, K Benekos, NC Benvenuti, AC Berat, C Berggren, M and Bertrand, D Besancon, M Bigi, M Bilenky, MS and Bizouard, MA Bloch, D Blom, HM Bonesini, M Boonekamp, M and Booth, PSL Borisov, G Bosio, C Botner, O Boudinov, E and Bouquet, B Bourdarios, C Bowcock, TJV Boyko, I and Bozovic, I Bozzo, M Bracko, M Branchini, P Brenner, RA and Bruckman, P Brunet, JM Bugge, L Buran, T Buschbeck, B Buschmann, P Cabrera, S Caccia, M Calvi, M and Camporesi, T Canale, V Carena, F Carroll, L Caso, C and Gimenez, MVC Cattai, A Cavallo, FR Chabaud, V Chapkin, M and Charpentier, P Checchia, P Chelkov, GA Chierici, R and Chliapnikov, P Chochula, P Chorowicz, V Chudoba, J and Cieslik, K Collins, P Contri, R Cortina, E Cosme, G and Cossutti, F Costa, M Crawley, HB Crennell, D Crepe, S and Crosetti, G Maestro, JC Czellar, S Davenport, M Da Silva, W Della Ricca, G Delpierre, P Demaria, N De Angelis, A De Boer, W De Clercq, C De Lotto, B De Min, A and De Paula, L Dijkstra, H Di Ciaccio, L Dolbeau, J and Doroba, K Dracos, M Drees, J Dris, M Duperrin, A and Durand, JD Eigen, G Ekelof, T Ekspong, G Ellert, M and Elsing, M Engel, JP Santo, ME Fanourakis, G and Fassouliotis, D Fayot, J Feindt, M Ferrer, A and Ferrer-Ribas, E Ferro, F Fichet, S Firestone, A and Flagmeyer, U Foeth, H Fokitis, E Fontanelli, F Franek, B and Frodesen, AG Fruhwirth, R Fulda-Quenzer, F Fuster, J and Galloni, A Gamba, D Gamblin, S Gandelman, M Garcia, C and Gaspar, C Gaspar, M Gasparini, U Gavillet, P Gazis, EN Gele, D Geralis, T Ghodbane, N Gil, I Glege, F and Gokieli, R Golob, B Gomez-Ceballos, G Goncalves, P and Caballero, IG Gopal, G Gorn, L Gouz, Y Gracco, V and Grahl, J Graziani, E Gris, P Grosdidier, G Grzelak, K and Guy, J Haag, C Hahn, F Hahn, S Haider, S and Hallgren, A Hamacher, K Hansen, J Harris, FJ Hauler, F and Hedberg, V Heising, S Hernandez, JJ Herquet, P Herr, H Hessing, TL Heuser, JM Higon, E Holmgren, SO Holt, PJ Hoorelbeke, S Houlden, M Hrubec, J Huber, M Huet, K Hughes, GJ Hultqvist, K Jackson, JN Jacobsson, R and Jalocha, P Janik, R Jarlskog, C Jarlskog, G Jarry, P and Jean-Marie, B Jeans, D Johansson, EK Jonsson, P Joram, C and Juillot, P Jungermann, L Kapusta, F Karafasoulis, K and Katsanevas, S Katsoufis, EC Keranen, R Kernel, G and Kersevan, BP Khokhlov, Y Khomenko, BA Khovanski, NN and Kiiskinen, A King, B Kinvig, A Kjaer, NJ Klapp, O and Klein, H Kluit, P Kokkinias, P Kostioukhine, V and Kourkoumelis, C Kouznetsov, O Krammer, M Kriznic, E and Krumstein, Z Kubinec, P Kurowska, J Kurvinen, K Lamsa, JW Lane, DW Lapin, V Laugier, JP Lauhakangas, R and Leder, G Ledroit, F Lefebure, V Leinonen, L Leisos, A and Leitner, R Lenzen, G Lepeltier, V Lesiak, T and Lethuillier, M Libby, J Liebig, W Liko, D Lipniacka, A and Lippi, I Loerstad, B Loken, JG Lopes, JH Lopez, JM and Lopez-Fernandez, R Loukas, D Lutz, P Lyons, L and MacNaughton, J Mahon, JR Maio, A Malek, A Malmgren, TGM and Maltezos, S Malychev, V Mandl, F Marco, J Marco, R and Marechal, B Margoni, M Marin, JC Mariotti, C Markou, A Martinez-Rivero, C Garcia, SMI Masik, J and Mastroyiannopoulos, N Matorras, F Matteuzzi, C Matthiae, G and Mazzucato, F Mazzucato, M Mc Cubbin, M Mc Kay, R Mc Nulty, R Mc Pherson, G Meroni, C Meyer, WT Miagkov, A and Migliore, E Mirabito, L Mitaroff, WA Mjoernmark, U and Moa, T Moch, M Moeller, R Moenig, K Monge, MR and Moraes, D Moreau, X Morettini, P Morton, G Mueller, U and Muenich, K Mulders, M Mulet-Marquis, C Muresan, R and Murray, WJ Muryn, B Myatt, G Myklebust, T Naraghi, F and Nassiakou, M Navarria, FL Nawrocki, K Negri, P Neufeld, N Nicolaidou, R Nielsen, BS Niezurawski, P Nikolenko, M and Nomokonov, V Nygren, A Obraztsov, V Olshevski, AG and Onofre, A Orava, R Orazi, G Osterberg, K Ouraou, A and Oyanguren, A Paganoni, M Paiano, S Pain, R Paiva, R and Palacios, J Palka, H Papadopoulou, TD Pape, L Parkes, C and Parodi, F Parzefall, U Passeri, A Passon, O Pavel, T and Pegoraro, M Peralta, L Pernicka, M Perrotta, A and Petridou, C Petrolini, A Phillips, HT Pierre, F Pimenta, M Piotto, E Podobnik, T Pol, ME Polok, G Poropat, P and Pozdniakov, V Privitera, P Pukhaeva, N Pullia, A and Radojicic, D Ragazzi, S Rahmani, H Rames, J Ratoff, PN and Read, AL Rebecchi, P Redaelli, NG Regler, M Rehn, J and Reid, D Reinertsen, P Reinhardt, R Renton, PB and Resvanis, LK Richard, F Ridky, J Rinaudo, G Ripp-Baudot, I Rohne, O Romero, A Ronchese, P Rosenberg, EI and Rosinsky, P Roudeau, P Rovelli, T Royon, C and Ruhlmann-Kleider, V Ruiz, A Saarikko, H Sacquin, Y and Sadovsky, A Sajot, G Salt, J Sampsonidis, D Sannino, M and Schwemling, P Schwering, B Schwickerath, U Scuri, F and Seager, P Sedykh, Y Segar, AM Seibert, N Sekulin, R and Shellard, RC Siebel, M Simard, L Simonetto, F Sisakian, AN Smadja, G Smirnova, O Smith, GR Solovianov, O and Sopczak, A Sosnowski, R Spassov, T Spiriti, E Squarcia, S Stanescu, C Stanic, S Stanitzki, M Stevenson, K and Stocchi, A Strauss, J Strub, R Stugu, B Szczekowski, M and Szeptycka, M Tabarelli, T Taffard, A Tegenfeldt, F and Terranova, F Thomas, J Timmermans, J Tinti, N Tkatchev, LG Tobin, M Todorova, S Tomaradze, A Tome, B and Tonazzo, A Tortora, L Tortosa, P Transtromer, G Treille, D Tristram, G Trochimczuk, M Troncon, C Turluer, ML and Tyapkin, IA Tyapkin, P Tzamarias, S Ullaland, O Uvarov, V Valenti, G Vallazza, E Van Dam, P Van den Boeck, W and Van Eldik, J Van Lysebetten, A van Remortel, N Van Vulpen, I and Vegni, G Ventura, L Venus, W Verbeure, F Verdier, P and Verlato, M Vertogradov, LS Verzi, V Vilanova, D and Vitale, L Vlasov, E Vodopyanov, AS Voulgaris, G Vrba, V and Wahlen, H Walck, C Washbrook, AJ Weiser, C Wicke, D and Wickens, JH Wilkinson, GR Winter, M Witek, M Wolf, G and Yi, J Yushchenko, O Zalewska, A Zalewski, P and Zavrtanik, D Zevgolatakos, E Zimin, NI Zintchenko, A and Zoller, P Zucchelli, GC Zumerle, G DELPHI Collaboration
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, Nuclear Experiment
Abstract: The DELPHI detector at LEP has collected 54 pb(-1) of data at a centre-of-mass energy around 183 GeV during 1997, 158 pb(-1) around 189 GeV during 1998, and 187 pb(-1) between 192 and 200 GeV during 1999. These data were used to measure the average charged particle multiplicity in e(+)e(-)->b (b) over bar events: (n)(b (b) over bar), and the difference delta(hl) between (n)(b (b) over bar) and the multiplicity, (n)(l (l) over bar), in generic light quark (u,d,s) events: delta(hl)(183 GeV) = 4.55 +/- 1.31(stat) +/- 0.73(syst), delta(hl)(189 GeV) = 4.43 +/- 0.85(stat) +/- 0.61(syst), delta(hl)(200 GeV) = 3.39 +/- 0.89(stat) +/- 1.01 (syst). This result is consistent with QCD predictions, while it is inconsistent with calculations assuming that the multiplicity accompanying the decay of a heavy quark is independent of the: mass of the quark itself. (C) 2000 Elsevier Science B.V. All rights reserved.
Published: 2000

22. Limits on the masses of supersymmetric particles at root s=189 GeV

Author: Abreu, P Adam, W Adye, T Adzic, P Ajinenko, I and Albrecht, Z Alderweireld, T Alekseev, GD Alemany, R and Allmendinger, T Allport, PP Almehed, S Amaldi, U and Amapane, N Amato, S Anassontzis, EG Andersson, P and Andreazza, A Andringa, S Antilogus, P Apel, WD Arnoud, Y and Asman, B Augustin, JE Augustinus, A Baillon, P and Ballestrero, A Bambade, P Barao, F Barbiellini, G and Barbier, R Bardin, DY Barker, G Baroncelli, A Battaglia, M Baubillier, M Becks, KH Begalli, M Behrmann, A and Beilliere, P Belokopytov, Y Benekos, NC Benvenuti, AC and Berat, C Berggren, M Berntzon, L Bertrand, D Besancon, M and Bilenky, MS Bizouard, MA Bloch, D Blom, HM Bonesini, M Boonekamp, M Booth, PSL Borisov, G Bosio, C and Botner, O Boudinov, E Bouquet, B Bourdarios, C Bowcock, TJV Boyko, I Bozovic, I Bozzo, M Bracko, M and Branchini, P Brenner, RA Bruckman, P Brunet, JM Bugge, L and Buran, T Buschbeck, B Buschmann, P Cabrera, S and Caccia, H Calvi, M Camporesi, T Canale, V Carena, F and Carroll, L Caso, C Gimenez, MVC Cattai, A Cavallo, FR and Charpentier, P Checchia, P Chelkov, GA Chierici, R and Chliapnikov, P Chochula, P Chorowicz, V Chudoba, J and Cieslik, K Collins, P Contri, R Cortina, E Cosme, G and Cossutti, F Costa, M Crawley, HB Crennell, D Crosetti, G and Maestro, JC Czeller, S D'Hondt, J Dalmau, J and Davenport, M Da Silva, W Della Ricca, G Delpierre, P and Demaria, N De Angelis, A De Boer, W De Clercq, C De Lotto, B De Min, A De Paula, L Dijkstra, H Di Ciaccio, L and Dolbeau, J Doroba, K Dracos, M Drees, J Dris, M and Eigen, G Ekelof, T Ellert, M Elsing, M Engel, JP and Santo, ME Fanourakis, G Fassouliotis, D Feindt, M and Fernandez, J Ferrer, A Ferrer-Ribas, E Ferro, F and Firestone, A Flagmeyer, U Foeth, H Fokitis, E and Fontanelli, F Franek, B Frodesen, AG Fruhwirth, R and Fulda-Quenzer, F Fuster, J Galloni, A Gamba, D Gamblin, S Gandelman, V Garcia, C Gaspar, C Gaspar, M and Gasparini, U Gavillet, P Gazis, EN Gele, D Geralis, T and Gerdyukov, L Ghodbane, N Gil, I Glege, F Gokieli, R and Golob, B Gomez-Ceballos, G Goncalves, P Caballero, IG and Gopal, G Gorn, L Gouz, Y Gracco, V Grahl, J and Graziani, E Gris, P Grosdidier, G Grzelak, K Guy, J and Haag, C Hahn, F Hahn, S Haider, S Hallgren, A and Hamacher, K Hansen, J Harris, FJ Hauler, F Hedberg, V and Heising, S Hernandez, JJ Herquet, P Herr, H Higon, E and Holmgren, SO Holt, PJ Hoorelbeke, S Houlden, M and Hrubec, J Huber, M Hughes, GJ Hultqvist, K Jackson, JN and Jacobsson, R Jalocha, P Janik, R Jarlskog, C and Jarlskog, G Jarry, P Jean-Marie, B Jeans, D Johansson, EK Jonsson, P Joram, C Juillot, P Jungermann, L and Kapusta, F Karafasoulis, K Katsanevas, S Katsoufis, EC and Keranen, R Kernel, G Kersevan, BP Khokhlov, Y Khomenko, BA Khovanski, NN Kiiskinen, A King, B Kinvig, A and Kjaer, NJ Klapp, O Kluit, P Kokkinias, P Kostioukhine, V and Kourkoumelis, C Kouznetsov, O Krammer, M Kriznic, E and Krumstein, Z Kubinec, P Kurowska, J Kurvinen, K Lamsa, JW Lane, DW Laugier, JP Lauhakangas, R Leder, G and Ledroit, F Leinonen, L Leisos, A Leitner, R Lenzen, G and Lepeltier, V Lesiak, T Lethuillier, M Libby, J and Liebig, W Liko, D Lipniacka, A Lippi, I Loerstad, B and Loken, JG Lopes, JH Lopez, JM Lopez-Fernandez, R Loukas, D Lutz, P Lyons, L MacNaughton, J Mahon, JR Maio, A and Malek, A Maltezos, S Malychev, V Mandl, F Marco, J and Marco, R Marechal, B Margoni, M Marin, JC Mariotti, C Markou, A Martinez-Rivero, C Garcia, SM Masik, J and Mastroyiannopoulos, N Matorras, F Matteuzzi, C Matthiae, G and Mazzucato, F Mazzucato, M Mc Cubbin, M Mc Kay, R Mc Nulty, R Mc Pherson, G Merle, E Meroni, C Meyer, WT and Migliore, E Mirabito, L Mitaroff, WA Mjoernmark, U Moa, T Moch, M Moeller, R Moenig, K Monge, MR Moraes, D and Morettini, P Morton, G Mueller, U Muenich, K and Mulders, M Mulet-Marquis, C Mundim, LM Muresan, R and Murray, WJ Muryn, B Myatt, G Myklebust, T Naraghi, F and Nassiakou, M Navarria, FL Nawrocki, K Negri, P Neufeld, N Nicolaidou, R Nielsen, BS Niezurawski, P Nikolenko, M and Nomokonov, V Nygren, A Obraztsov, V Olshevski, AG and Onofre, A Orava, R Orazi, G Osterberg, K Ouraou, A and Oyanguren, A Paganoni, M Paiano, S Pain, R Paiva, R and Palacios, J Palka, H Papadopoulou, TD Pape, L Parkes, C and Parodi, F Parzefall, U Passeri, A Passon, O Pavel, T and Pegoraro, M Peralta, L Pernicka, M Perrotta, A and Petridou, C Petrolini, A Phillips, HT Pierre, F Pimenta, M Piotto, E Podobnik, T Poireau, V Pol, ME Polok, G and Poropat, P Pozdniakov, V Privitera, P Pukhaeva, N and Pullia, A Radojicic, D Ragazzi, S Rahmani, H Rames, J and Ratoff, PN Read, AL Rebecchi, P Redaelli, NG Regler, M Rehn, J Reid, D Reinertsen, P Reinhardt, R Renton, PB Resvanis, LK Richard, F Ridky, J Rinaudo, G and Ripp-Baudot, I Romero, A Ronchese, P Rosenberg, EI and Rosinsky, P Roudeau, P Rovelli, T Ruhlmann-Kleider, V and Ruiz, A Saarikko, H Sacquin, Y Sadovsky, A Sajot, G and Salt, J Sampsonidis, D Sannino, M Savoy-Navarro, A and Schwemling, P Schwering, B Schwickerath, U Scuri, F and Seager, P Sedykh, Y Segar, AM Seibert, N Sekulin, R and Sette, G Shellard, RC Siebel, M Simard, L Simonetto, F and Sisakian, AN Smadja, G Smirnov, N Smirnova, O Smith, GR Sokolov, A Sopczak, A Sosnowski, R Spassov, T and Spiriti, E Squarcia, S Stanescu, C Stanitzki, M and Stevenson, K Stocchi, A Strauss, J Strub, R Stugu, B and Szczekowski, M Szeptycka, M Tabarelli, T Taffard, A and Tchikilev, O Tegenfeldt, F Terranova, F Timmermans, J and Tinti, N Tkatchev, LG Tobin, M Todorova, S Tome, B and Tonazzo, A Tortora, I Tortosa, P Transtromer, G Treille, D Tristram, G Trochimczuk, M Troncon, C Turluer, ML and Tyapkin, IA Tyapkin, P Tzamarias, S Ullaland, O Uvarov, V Valenti, G Vallazza, E Vander Velde, C Van Dam, P and Van den Boeck, W Van Eldik, J Van Lysebetten, A van Remortel, N Van Vulpen, I Vegni, G Ventura, L Venus, W and Verbeure, F Verdier, P Verlato, M Vertogradov, LS and Verzi, V Vilanova, D Vitale, L Vlasov, E Vodopyanov, AS and Voulgaris, G Vrba, V Wahlen, H Washbrook, AJ Weiser, C Wicke, D Wickens, JH Wilkinson, GR Winter, M and Witek, M Wolf, G Yi, J Yushchenko, O Zalewska, A and Zalewski, P Zavrtanik, D Zevgolatakos, E Zimin, NI and Zintchenko, A Zoller, P Zumerle, G Zupan, M
Abstract: Searches for charginos, neutralinos and sleptons at LEP2 centre-of-mass energies from 130 GeV to 189 GeV have been used to set lower limits on the mass of the Lightest Supersymmetric Particle and other supersymmetric particles within the MSSM framework. R-parity conservation has been assumed. The lightest neutralino was found to be heavier than GeV/c(2) independent of the m(0) value. The Lightest chargino, the second-to-lightest neutralino, the next-to-heaviest neutralino, the heaviest neutralino, the sneutrino and the right-handed selectron were found to be heavier than 62.4 GeV/c2, 62.4 GeV/c(2), 99.9 GeV/c(2), 116.0 GeV/c(2), 61.0 GeV/c(2), and 87.0 GeV/c(2), respectively. These limits do not depend on m(0) or M-2 and are Valid for 1 less than or equal to tan beta less than or equal to 40, in the mu region where the lightest neutralino is the LSP. If the sneutrino is heavier than the chargino the lightest neutralino has to be heavier than 32.4 GeV/c(2). The effects of mixings in the third family of sfermions on these limits are discussed. The confidence level of all limits given is 95%. (C) 2000 Published by Elsevier Science B.V.
Published: 2000

23. Measurement and Interpretation of Fermion-Pair Production at LEP Energies of 183 and 189 GeV

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, Alekseev, GD, Alemany, R, Allmendinger, T, Allport, PP, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anassontzis, EG, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, WD, Arnoud, Y, Asman, B, Augustin, JE, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, DY, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, KH, Begalli, M, Behrmann, A, Beilliere, P, Belokopytov, Y, Belous, K, Benekos, NC, Benvenuti, AC, Berat, C, Berggren, M, Berntzon, L, Bertrand, D, Besancon, M, Bilenky, MS, Bizouard, MA, Bloch, D, Blom, HM, Bonesini, M, Boonekamp, M, Booth, PSL, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, TJV, Boyko, I, Bozovic, I, Bozzo, M, Bracko, M, Branchini, P, Brenner, RA, Bruckman, P, Brunet, JM, Bugge, L, Buran, T, Buschbeck, B, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, MVC, Cattai, A, Cavallo, FR, Chapkin, M, Charpentier, P, Checchia, P, Chelkov, GA, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Costa, M, Crawley, HB, Crennell, D, Crosetti, G, Maestro, JC, Czellar, S, D'Hondt, J, Dalmau, J, Davenport, M, Da Silva, W, Della Ricca, G, Delpierre, P, Demaria, N, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Min, A, De Paula, L, Dijkstra, H, Di Ciaccio, L, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Eigen, G, Ekelof, T, Ellert, M, Elsing, M, Engel, JP, Santo, ME, Fanourakis, G, Fassouliotis, D, Feindt, M, Fernandez, J, Ferrer, A, Ferrer-Ribas, E, Ferro, F, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, AG, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, EN, Gele, D, Geralis, T, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez-Ceballos, G, Goncalves, P, Caballero, IG, Gopal, G, Gorn, L, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Gris, P, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, FJ, Hauler, F, Hedberg, V, Heising, S, Hernandez, JJ, Herquet, P, Herr, H, Higon, E, Holmgren, SO, Holt, PJ, Hoorelbeke, S, Houlden, M, Hrubec, J, Huber, M, Hughes, GJ, Hultqvist, K, Jackson, JN, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Jeans, D, Johansson, EK, Jonsson, P, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, EC, Keranen, R, Kernel, G, Kersevan, BP, Khokhlov, Y, Khomenko, BA, Khovanski, NN, Kiiskinen, A, King, B, Kinvig, A, Kjaer, NJ, Klapp, O, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kurowska, J, Kurvinen, K, Lamsa, JW, Lane, DW, Lapin, V, Laugier, JP, Lauhakangas, R, Leder, G, Ledroit, F, Leinonen, L, Leisos, A, Leitner, R, Lemonne, J, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, R, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Loerstad, B, Loken, JG, Lopes, JH, Lopez, JM, Lopez-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J, Mahon, JR, Maio, A, Malek, A, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, JC, Mariotti, C, Markou, A, Martinez-Rivero, C, Garcia, SMI, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, Mc Cubbin, M, Mc Kay, R, Mc Nulty, R, Mc Pherson, G, Merle, E, Meroni, C, Meyer, WT, Miagkov, A, Migliore, E, Mirabito, L, Mitaroff, WA, Mjoernmark, U, Moa, T, Moch, M, Moeller, R, Moenig, K, Monge, MR, Moraes, D, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mulet-Marquis, C, Mundim, LM, Muresan, R, Murray, WJ, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Nassiakou, M, Navarria, FL, Nawrocki, K, Negri, P, Neufeld, N, Nicolaidou, R, Nielsen, BS, Niezurawski, P, Nikolenko, M, Nomokonov, V, Nygren, A, Obraztsov, V, Olshevski, AG, Onofre, A, Orava, R, Orazi, G, Osterberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, TD, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pavel, T, Pegoraro, M, Peralta, L, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, HT, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Poireau, V, Pol, ME, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, PN, Read, AL, Rebecchi, P, Redaelli, NG, Regler, M, Rehn, J, Reid, D, Reinertsen, P, Reinhardt, R, Renton, PB, Resvanis, LK, Richard, F, Ridky, J, Rinaudo, G, Ripp-Baudot, I, Romero, A, Ronchese, P, Rosenberg, EI, 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, Savoy-Navarro, A, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Seager, P, Sedykh, Y, Segar, AM, Seibert, N, Sekulin, R, Sette, G, Shellard, RC, Siebel, M, Simard, L, Simonetto, F, Sisakian, AN, Smadja, G, Smirnova, O, Smith, GR, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Squarcia, S, Stanescu, C, Stanitzki, M, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Taffard, A, Tckikilev, O, Tegenfeldt, F, Terranova, F, Timmermans, J, Tinti, N, Tkatchev, LG, Tobin, M, Todorova, S, Tome, B, Tonazzo, A, Tortora, L, Tortosa, P, Transtromer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, ML, Tyapkin, IA, Tyapkin, P, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van Dam, P, Van den Boeck, W, Van Doninck, WK, Van Eldik, J, Van Lysebetten, A, van Remortel, N, Van Vulpen, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verdier, P, Verlato, M, Vertogradov, LS, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, AS, Voulgaris, G, Vrba, V, Wahlen, H, Washbrook, AJ, Weiser, C, Wicke, D, Wickens, JH, Wilkinson, GR, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, NI, Zintchenko, A, Zoller, P, Zumerle, G, Zupan, M, Collaboration, DELPHI, UCL - SST/IRMP - Institut de recherche en mathématique et physique, 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), 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)-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), 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), 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), Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Poropat, Paolo, Vitale, Lorenzo, Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, Alekseev, G, Alemany, R, Allmendinger, T, Allport, P, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anassontzis, E, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, W, Arnoud, Y, Asman, B, Augustin, J, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, D, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, K, Begalli, M, Behrmann, A, Beilliere, P, Belokopytov, Y, Belous, K, Benekos, N, Benvenuti, A, Berat, C, Berggren, M, Berntzon, L, Bertrand, D, Besancon, M, Bilenky, M, Bizouard, M, Bloch, D, Blom, H, Bonesini, M, Boonekamp, M, Booth, P, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T, Boyko, I, Bozovic, I, Bozzo, M, Bracko, M, Branchini, P, Brenner, R, Bruckman, P, Brunet, J, Bugge, L, Buran, T, Buschbeck, B, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, M, Cattai, A, Cavallo, F, Chapkin, M, Charpentier, P, Checchia, P, Chelkov, G, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Costa, M, Crawley, H, Crennell, D, Crosetti, G, Maestro, J, Czellar, S, D'Hondt, J, Dalmau, J, Davenport, M, Da Silva, W, Della Ricca, G, Delpierre, P, Demaria, N, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Min, A, De Paula, L, Dijkstra, H, Di Ciaccio, L, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Eigen, G, Ekelof, T, Ellert, M, Elsing, M, Engel, J, Santo, M, Fanourakis, G, Fassouliotis, D, Feindt, M, Fernandez, J, Ferrer, A, Ferrer Ribas, E, Ferro, F, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, A, Fruhwirth, R, Fulda Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, E, Gele, D, Geralis, T, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez Ceballos, G, Goncalves, P, Caballero, I, Gopal, G, Gorn, L, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Gris, P, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, F, Hauler, F, Hedberg, V, Heising, S, Hernandez, J, Herquet, P, Herr, H, Higon, E, Holmgren, S, Holt, P, Hoorelbeke, S, Houlden, M, Hrubec, J, Huber, M, Hughes, G, Hultqvist, K, Jackson, J, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean Marie, B, Jeans, D, Johansson, E, Jonsson, P, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, E, Keranen, R, Kernel, G, Kersevan, B, Khokhlov, Y, Khomenko, B, Khovanski, N, Kiiskinen, A, King, B, Kinvig, A, Kjaer, N, Klapp, O, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kurowska, J, Kurvinen, K, Lamsa, J, Lane, D, Lapin, V, Laugier, J, Lauhakangas, R, Leder, G, Ledroit, F, Leinonen, L, Leisos, A, Leitner, R, Lemonne, J, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, R, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Loerstad, B, Loken, J, Lopes, J, Lopez, J, Lopez Fernandez, R, Loukas, D, Lutz, P, Lyons, L, Macnaughton, J, Mahon, J, Maio, A, Malek, A, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, J, Mariotti, C, Markou, A, Martinez Rivero, C, Garcia, S, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, Mc Cubbin, M, Mc Kay, R, Mc Nulty, R, Mc Pherson, G, Merle, E, Meroni, C, Meyer, W, Miagkov, A, Migliore, E, Mirabito, L, Mitaroff, W, Mjoernmark, U, Moa, T, Moch, M, Moeller, R, Moenig, K, Monge, M, Moraes, D, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mulet Marquis, C, Mundim, L, Muresan, R, Murray, W, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Nassiakou, M, Navarria, F, Nawrocki, K, Negri, P, Neufeld, N, Nicolaidou, R, Nielsen, B, Niezurawski, P, Nikolenko, M, Nomokonov, V, Nygren, A, Obraztsov, V, Olshevski, A, Onofre, A, Orava, R, Orazi, G, Osterberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, T, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pavel, T, Pegoraro, M, Peralta, L, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Poireau, V, 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, Rehn, J, Reid, D, Reinertsen, P, Reinhardt, R, Renton, P, Resvanis, L, Richard, F, Ridky, J, Rinaudo, G, Ripp Baudot, I, 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, Savoy Navarro, A, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Seager, P, Sedykh, Y, Segar, A, Seibert, N, Sekulin, R, Sette, G, Shellard, R, Siebel, M, Simard, L, Simonetto, F, Sisakian, A, Smadja, G, Smirnova, O, Smith, G, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Squarcia, S, Stanescu, C, Stanitzki, M, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, TABARELLI DE FATIS, T, Taffard, A, Tckikilev, O, Tegenfeldt, F, Terranova, F, Timmermans, J, Tinti, N, Tkatchev, L, Tobin, M, Todorova, S, Tome, B, Tonazzo, A, Tortora, L, Tortosa, P, Transtromer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, M, Tyapkin, I, Tyapkin, P, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van Dam, P, Van den Boeck, W, Van Doninck, W, Van Eldik, J, Van Lysebetten, A, van Remortel, N, Van Vulpen, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verdier, P, Verlato, M, Vertogradov, L, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, A, Voulgaris, G, Vrba, V, Wahlen, H, Washbrook, A, Weiser, C, Wicke, D, Wickens, J, Wilkinson, G, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, N, Zintchenko, A, Zoller, P, Zumerle, G, and Zupan, M
Subjects: Nuclear and High Energy Physics, Particle physics, Hadron, STANDARD MODEL, FOS: Physical sciences, 7. Clean energy, 01 natural sciences, Partícules (Física nuclear), CROSS-SECTIONS, High Energy Physics - Experiment, PHYSICS, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, MONTE-CARLO PROGRAM, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], EXTRA DIMENSIONS, Limit (mathematics), 010306 general physics, QC, Boson, DELPHI, Physics, Condensed Matter::Quantum Gases, high energy collider, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, CONSTRAINTS, LEP, Supersymmetry, Fermion, Z(0), Collision, LARGE ELECTRON POSITRON COLLIDER, Extra dimensions, FIS/01 - FISICA SPERIMENTALE, Pair production, OF-MASS ENERGIES, QUANTUM-GRAVITY, PARTICLE PHYSICS, TESTS, Física nuclear, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: An analysis of the data collected in 1997 and 1998 with the DELPHI detector at e+e- collision energies close to 183 and 189 GeV was performed in order to extract the hadronic and leptonic fermion-pair cross-sections, as well as the leptonic forward-backward asymmetries and angular distributions. The data are used to put limit on contact interactions between fermions, the exchange of R-parity violating SUSY sneutrinos, Z' bosons and the existence of gravity in extra dimensions., 23 pages, 7 figures
Published: 2000
Full Text: View/download PDF

24. Study of B-s(0)-(B-s(0))over-bar oscillations and B-s(0) lifetimes using hadronic decays of B-s(0) mesons

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., Alderweireld, T., Alekseev, Gd, Alemany, R., Allmendinger, T., Allport, Pp, Almehed, S., Amaldi, U., Amapane, N., Amato, S., Anassontzis, Eg, Andersson, P., Andreazza, A., Andringa, S., Antilogus, P., Apel, Wd, Arnoud, Y., Asman, B., Augustin, Je, Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barbiellini, G., Barbier, R., Bardin, Dy, Barker, G., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, Kh, Begalli, M., Behrman, A., Beilliere, P., Belokopytov, Y., Benekos, Nc, Benvenuti, Ac, Berat, C., Berggren, M., Bertini, D., Bertrand, D., Besancon, M., Bigi, M., Bilenky, Ms, Bizouard, Ma, Bloch, D., Blom, Hm, Bonesini, M., Bonivento, W., Boonekamp, M., Booth, Psl, Borgland, Aw, Borisov, G., Bosio, C., Botner, O., Boudinov, E., Bouquet, B., Bourdarios, C., Bowcock, Tjv, Boyko, I., Bozovic, I., Bozzo, M., Bracko, M., Branchini, P., Brenke, T., Brenner, Ra, Bruckman, P., Brunet, Jm, Bugge, L., Buran, T., Burgsmueller, T., Buschbeck, B., Buschmann, P., Cabrera, S., Caccia, M., Calvi, M., Camporesi, T., Canale, V., Carena, F., Carroll, L., Caso, C., Gimenez, Mvc, Cattai, A., Cavallo, Fr, Chabaud, V., Charpentier, P., Chaussard, L., Checchia, P., Chelkov, Ga, Chierici, R., Chliapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Cieslik, K., Collins, P., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Crawley, Hb, Crennell, D., Crepe, S., Crosetti, G., Maestro, Jc, Czellar, S., Davenport, M., Da Silva, W., Deghorain, A., Della Ricca, G., Delpierre, P., Demaria, N., Angelis, A., Boer, W., Clercq, C., Lotto, B., Min, A., Paula, L., Dijkstra, H., Di Ciaccio, L., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Dris, M., Duperrin, A., Durand, Jd, Eigen, G., Ekelof, T., Ekspong, G., Ellert, M., Elsing, M., Engel, Jp, Santo, Me, Fanourakis, G., Fassouliotis, D., Fayot, J., Feindt, M., Fenyuk, A., Ferrari, P., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Fichet, S., Firestone, A., Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, Ag, Fruhwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, En, Gele, D., Ghodbane, N., Gil, I., Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Caballero, Ig, Gopal, G., Gorn, L., Gouz, Y., Gracco, V., Grahl, J., Graziani, E., Grimm, Hj, Gris, P., Grosdidier, G., Grzelak, K., Gunther, M., Guy, J., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Hansen, J., Harris, Fj, Hedberg, V., Heising, S., Hernandez, Jj, Herquet, P., Herr, H., Hessing, Tl, Heuser, Jm, Higon, E., Holmgren, So, Holt, Pj, Hoorelbeke, S., Houlden, M., Hrubec, J., Huet, K., Hughes, Gj, Hultqvist, K., Jackson, Jn, Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Jeans, D., Johansson, Ek, Jonsson, P., Joram, C., Juillot, P., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, Ec, Keranen, R., Kernel, G., Kersevan, Bp, Khomenko, Ba, Khovanski, Nn, Kiiskinen, A., King, B., Kinvig, A., Kjaer, Nj, Klapp, O., Klein, H., Kluit, P., Kokkinias, P., Koratzinos, M., Kostioukhine, V., Kourkoumelis, C., Kouznetsov, O., Krammer, M., Kriznic, E., Krumstein, Z., Kubine, P., Kurowska, J., Kurvinen, K., Lamsa, Jw, Lane, Dw, Langefeld, P., Lapin, V., Laugier, Jp, Lauhakangas, R., Leder, G., 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, Jg, Lopes, Jh, Lopez, Jh, Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., Macnaughton, J., Mahon, Jr, Maio, A., Malek, A., Malmgren, Tgm, Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, Jc, Mariotti, C., Markou, A., Martinez-Rivero, C., Martinez-Vidal, F., Marti I Garcia, S., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., Mc Cubbin, M., Mc Kay, R., Mc Nulty, R., Mc Pherson, G., Meroni, C., Meyer, Wt, Miagkov, A., Migliore, E., Mirabito, L., Mitaroff, Wa, Mjoernmark, U., Moa, T., Moch, M., Moeller, R., Moenig, K., Monge, MR, Moreau, X., Morettini, P., Morton, G., Mueller, U., Muenich, K., Mulders, M., Mulet-Marquis, C., Muresan, R., Murray, Wj, Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Nassiakou, M., Navarria, Fl, Navas, S., Nawrocki, K., Negri, P., Neufeld, N., Nicolaidou, R., Nielsen, Bs, Niezurawski, P., Nikolenko, M., Nomokonov, V., Nygren, A., Obraztsov, V., Olshevski, Ag, Onofre, A., Orava, R., Orazi, G., Osterberg, K., Ouraou, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, Td, Papageorgiou, K., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Pavel, T., Pegoraro, M., Peralta, L., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillps, Ht, Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Pol, Me, Polok, G., Poropat, P., Pozdniakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rames, J., Ratoff, Pn, Read, Al, Rebecchi, P., Redaelli, Ng, Regler, M., Reid, D., Reinhardt, R., Renton, Pb, Resvanis, Lk, Richard, F., Ridky, J., Rinaudo, G., Rohne, O., Romero, A., Ronchese, P., Rosenberg, Ei, Rosinsky, P., Roudeau, P., Rovelli, T., Royon, C., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovsky, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Schneider, H., Schwemling, P., Schwering, B., Schwickerath, U., Scuri, F., Seager, P., Sedykh, Y., Segar, Am, Sekulin, R., Shellard, Rc, Siebel, M., Simard, L., Simonetto, F., Sisakian, An, Smadja, G., Smirnov, N., Oxana Smirnova, Smith, Gr, Sokolov, A., Sopczak, A., Sosnowski, R., Spassov, T., Spiriti, E., Sponholz, P., Squarcia, S., Stanescu, C., Stanic, S., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Taffard, A., Tegenfeldt, F., Terranova, F., Thomas, J., Timmermans, J., Tinti, N., Tkatchev, Lg, Tobin, M., Todorova, S., Tomaradze, A., Tome, B., Tonazzo, A., Tortora, L., Tortosa, P., Transtromer, G., Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Tsirou, A., Turluer, Ml, Tyapkin, Ia, Tzamarias, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Vander Velde, C., Apeldoorn, Gw, Dam, P., Den Boeck, W., Doninck, Wk, Eldik, J., Lysebetten, A., Remortel, N., Vulpen, I., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verlato, M., Vertogradov, Ls, Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopyanov, As, Vollmer, C., Voulgaris, G., Vrba, V., Wahlen, H., Walck, C., Washbrook, Aj, Weiser, C., Wicke, D., Wickens, Jh, Wilkinson, Gr, Winter, M., Witek, M., Wolf, G., Yi, J., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, Ni, Zintchenko, A., Zucchelli, Gc, Zumerle, G., and Delphi, Collaboration
Subjects: B-DECAY, MODEL, DELPHI DETECTOR, DIFFERENCE, PARAMETER, SYSTEM, MATRIX, QCD
Abstract: Oscillations of B0s mesons have been studied in samples selected from about 3.5 million hadronic Z decays detected by DELPHI between 1992 and 1995. One analysis uses events in the exclusive decay channels: B0s → D-sπ+ or D-sa+1 and B0s → D̄0K-π+ or D̄0K-a+1, where the D decays are completely reconstructed. In addition. B0s-B0s̄ oscillations have been studied in events with an exclusively reconstructed Ds accompanied in the same hemisphere by a high momentum hadron of opposite charge. Combining the two analyses, a limit on the mass difference between the physical B0s states has been obtained: ΔmB0s > 4.0 ps-1 at the 95% C.L. with a sensitivity of ΔmB0s = 3.2 ps-1. Using the latter sample of events, the B0s lifetime has been measured and an upper limit on the decay width difference between the two physical B0s states has been obtained: τB0s = 1.53+0.16-0.15(stat.) ± 0.07(syst.) ps ΔΓB0s/ΓB0s < 0.69 at the 95% C.L. The combination of these results with those obtained using D±sℓ∓ sample gives: ΔmB0s > 4.9 ps-1 at the 95% C.L. with a sensitivity of ΔmB0s = 8.7 ps-1. τB0s = 1.46 ± 0.11 ps and ΔΓB0s/ΓB0s < 0.45 at the 95% C.L.
Published: 2000

25. Charged and identified particles in the hadronic decay of W bosons and in e(+)e(-) -> q(q)over-bar from 130 to 200 GeV

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, Alekseev, Gd, Alemany, R, Allmendinger, T, Allport, Pp, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anassontzis, Eg, Andersson, P, Andreazza, A, Andringa, S, Anjos, N, Antilogus, P, Apel, Wd, Arnoud, Y, Asman, B, Augustin, Je, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, Dy, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, Kh, Begalli, M, Behrmann, A, Beilliere, P, Belokopytov, Y, Belous, K, Benekos, Nc, Benvenuti, Ac, Berat, C, Berggren, M, Bertrand, D, Besancon, M, Bigi, M, Bilenky, Ms, Bizouard, Ma, Bloch, D, Blom, Hm, Bonesini, M, Boonekamp, M, Booth, Psl, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, Tjv, Boyko, I, Bozovic, I, Bozzo, M, Bracko, M, Branchini, P, Brenner, Ra, Bruckman, P, Brunet, Jm, Bugge, L, Buran, T, Buschbeck, B, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, Mvc, Cattai, A, Cavallo, Fr, Chabaud, V, Chapkin, M, Charpentier, P, Checchia, P, Chelkov, Ga, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Costa, M, Crawley, Hb, Crennell, D, Crepe, S, Crosetti, G, Maestro, Jc, Czellar, S, Davenport, M, Da Silva, W, Della Ricca, G, Delpierre, P, Demaria, N, DE ANGELIS, Alessandro, De Boer, W, De Clercq, C, DE LOTTO, Barbara, De Min, A, De Paula, L, Dijkstra, H, Di Ciaccio, L, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Duperrin, A, Durand, Jd, Eigen, G, Ekelof, T, Ekspong, G, Ellert, M, Elsing, M, Engel, Jp, Santo, Me, Fanourakis, G, Fassouliotis, D, Fayot, J, Feindt, M, Ferrer, A, Ferrer Ribas, E, Ferro, F, Fichet, S, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, Ag, Fruhwirth, R, Fulda Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, En, Gele, D, Geralis, T, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez Ceballos, G, Goncalves, P, Caballero, Ig, Gopal, G, Gorn, L, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Gris, P, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, Fj, Hauler, F, Hedberg, V, Heising, S, Hernandez, Jj, Herquet, P, Herr, H, Hessing, Tl, Heuser, Jm, Higon, E, Holmgren, So, Holt, Pj, Hoorelbeke, S, Houlden, M, Hrubec, J, Huber, M, Huet, K, Hughes, Gj, Hultqvist, K, Jackson, Jn, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean Marie, B, Jeans, D, Johansson, Ek, Jonsson, P, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, Ec, Keranen, R, Kernel, G, Kersevan, Bp, Khokhlov, Y, Khomenko, Ba, Khovanski, Nn, Kiiskinen, A, King, B, Kinvig, A, Kjaer, Nj, Klapp, O, Klein, H, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kurowska, J, Kurvinen, K, Lamsa, Jw, Lane, Dw, Lapin, V, Laugier, Jp, Lauhakangas, R, Leder, G, Ledroit, F, Lefebure, V, Leinonen, L, Leisos, A, Leitner, R, Lemonne, J, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Loerstad, B, Loken, Jg, Lopes, Jh, Lopez, Jm, Lopez Fernandez, R, Loukas, D, Lutz, P, Lyons, L, Macnaughton, J, Mahon, Jr, Maio, A, Malek, A, Malmgren, Tgm, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, Jc, Mariotti, C, Maskou, A, Martinez Rivero, C, Garcia S, Marti i., Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, Mc Cubbin, M, Mc Kay, R, Mc Nulty, R, Mc Pherson, G, Meroni, C, Metreveli, Z, Meyer, Wt, Miagkov, A, Migliore, E, Mirabito, L, Mitaroff, Wa, Mjoernmark, U, Moa, T, Moch, M, Moeller, R, Moenig, K, Monge, Mr, Moraes, D, Moreau, X, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mulet Marquis, C, Muresan, R, Murray, Wj, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Nassiakou, M, Navarria, Fl, Nawrocki, K, Negri, P, Neufeld, N, Nicolaidou, R, Nielsen, Bs, Niezurawski, P, Nikolenko, M, Nomokonov, V, Nygren, A, Obraztsov, V, Olshevski, Ag, Onofre, A, Orava, R, Orazi, G, Osterberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, Td, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pavel, T, Pegoraro, M, Peralta, L, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, Ht, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Pol, Me, Polok, G, Poropat, P, Pozdniako, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, Pn, Read, Al, Rebecchi, P, Redaelli, Ng, Regler, M, Rehn, J, Reid, D, Reinertsen, P, Reinhardt, R, Renton, Pb, Resvanis, Lk, Richard, F, Ridky, J, Rinaudo, G, Ripp Baudot, I, Rohne, O, Romero, A, Ronchese, P, Rosenberg, Ei, Rosinsky, P, Roudeau, P, Rovelli, T, Royon, C, Ruhlmann Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Y, Sadovsky, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, Fabrizio, Seager, P, Sedykh, Y, Segar, Am, Seibert, N, Sekulin, R, Shellard, Rc, Siebel, M, Simard, L, Simonetto, F, Sisakian, An, Smadja, G, Smirnova, O, Smith, Gr, Solovianov, O, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Squarcia, S, Stanescu, C, Stanic, S, Stanitzki, M, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Taffard, A, Tegenfeldt, F, Terranova, F, Thomas, J, Timmermans, J, Tinti, N, Tkatchev, Lg, Tobin, M, Todorova, S, Tomaradze, A, Tome, B, Tonazzo, A, Tortora, L, Tortosa, P, Transtromer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, Ml, Tyapkin, Ia, Tyapkin, P, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van Dam, P, Van den Boeck, W, Van Eldik, J, Van Lysebetten, A, van Remortel, N, Van Vulpen, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verdier, P, Verlato, M, Vertogradov, Ls, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, As, Voulgaris, G, Vrba, V, Wahlen, H, Walck, C, Washbrook, Aj, Weiser, C, Wicke, D, Wickens, Jh, Wilkinson, Gr, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, Ni, Zintchenko, A, Zoller, P, Zucchelli, Gc, and Zumerle, G.
Published: 2000

26. Search for supersymmetric partners of top and bottom quarks at root s=189 GeV

Author: Abreu, P Adam, W Adye, T Adzic, P Ajinenko, I and Albrecht, Z Alderweireld, T Alekseev, GD Alemany, R and Allmendinger, T Allport, PP Almehed, S Amaldi, U and Amapane, N Amato, S Anassontzis, EG Andersson, P and Andreazza, A Andringa, S Antilogus, P Apel, WD Arnoud, Y and Asman, B Augustin, JE Augustinus, A Baillon, P and Ballestrero, A Bambade, P Barao, F Barbiellini, G and Barbier, R Bardin, DY Barker, G Baroncelli, A Battaglia, M Baubillier, M Becks, KH Begalli, M Behrmann, A and Beilliere, P Belokopytov, Y Benekos, NC Benvenuti, AC and Berat, C Berggren, M Bertrand, D Besancon, M Bigi, M and Bilenky, MS Bizouard, MA Bloch, D Blom, HM Bonesini, M and Boonekamp, M Booth, PSL Borgland, W Borisov, G and Bosio, C Botner, O Boudinov, E Bouquet, B Bourdarios, C and Bowcock, TJV Boyko, I Bozovic, I Bozzo, M Bracko, M and Branchini, P Brenner, RA Bruckman, P Brunet, JM and Bugge, L Buran, T Buschbeck, B Buschmann, P Cabrera, S and Caccia, M Calvi, M Camporesi, T Canale, V Carena, F and Carroll, L Caso, C Gimenez, MVC Cattai, A Cavallo, FR Chabaud, V Charpentier, P Checchia, P Chelkov, GA and Chierici, R Chliapnikov, P Chochula, P Chorowicz, V and Chudoba, J Cieslik, K Collins, P Contri, R Cortina, E and Cosme, G Cossutti, F Crawley, HB Crennell, D Crepe, S Crosetti, G Maestro, JC Czellar, S Davenport, M Da Silva, W Della Ricca, G Delpierre, P Demaria, N De Angelis, A De Boer, W De Clercq, C De Lotto, B De Min, A and De Paula, L Dijkstra, H Di Ciaccio, L Dolbeau, J and Doroba, K Dracos, M Drees, J Dris, M Duperrin, A and Durand, JD Eigen, G Ekelof, T Ekspong, G Ellert, M and Elsing, M Engel, JP Santo, ME Fanourakis, G and Fassouliotis, D Fayot, J Feindt, M Ferrer, A and Ferrer-Ribas, E Ferro, F Fichet, S Firestone, A and Flagmeyer, U Foeth, H Fokitis, E Fontanelli, F Franek, B and Frodesen, AG Fruhwirth, R Fulda-Quenzer, F Fuster, J and Galloni, A Gamba, D Gamblin, S Gandelman, M Garcia, C and Gaspar, C Gaspar, M Gasparini, U Gavillet, P Gazis, EN Gele, D Geralis, T Gerdyukov, L Ghodbane, N Gil, I Glege, F Gokieli, R Golob, B Gomez-Ceballos, G and Goncalves, P Caballero, IG Gopal, G Gorn, L Gouz, Y and Gracco, V Grahl, J Graziani, E Gris, P Grosdidier, G and Grzelak, K Guy, J Haag, C Hahn, F Hahn, S Haider, S and Hallgren, A Hamacher, K Hansen, J Harris, FJ and Hedberg, V Heising, S Hernandez, JJ Herquet, P Herr, H and Hessing, TL Heuser, JM Higon, E Holmgren, SO Holt, P and Hoorelbeke, S Houlden, M Hrubec, J Huber, M Huet, K and Hughes, GJ Hultqvist, K Jackson, JN Jacobsson, R and Jalocha, P Janik, R Jarlskog, C Jarlskog, G Jarry, P and Jean-Marie, B Jeans, D Johansson, EK Jonsson, P Joram, C and Juillot, P Jungermann, L Kapusta, F Karafasoulis, K and Katsanevas, S Katsoufis, EC Keranen, R Kernel, G and Kersevan, BP Khokhlov, Y Khomenko, BA Khovanski, NN and Kiiskinen, A King, B Kinvig, A Kjaer, NJ Klapp, O and Klein, H Kluit, P Kokkinias, P Kostioukhine, V and Kourkoumelis, C Kouznetsov, O Krammer, M Kriznic, E and Krumstein, Z Kubinec, P Kurowska, J Kurvinen, K Lamsa, JW Lane, DW Lapin, V Laugier, JP Lauhakangas, R and Leder, G Ledroit, F Lefebure, V Leinonen, L Leisos, A and Leitner, R Lemonne, J Lenzen, G Lepeltier, V Lesiak, T Lethuillier, M Libby, J Liebig, W Liko, D and Lipniacka, A Lippi, I Loerstad, B Loken, JG Lopes, JH and Lopez, JM Lopez-Fernandez, R Loukas, D Lutz, P and Lyons, L MacNaughton, J Mahon, JR Maio, A Malek, A and Malmgren, TGM Maltezos, S Malychev, V Mandl, F Marco, J and Marco, R Marechal, B Margoni, M Marin, JC Mariotti, C Markou, A Martinez-Rivero, C Martinez-Vidal, F Garcia, SMI Masik, J Mastroyiannopoulos, N Matorras, F and Matteuzzi, C Matthiae, G Mazzucato, F Mazzucato, M Mc Cubbin, M Mc Kay, R Mc Nulty, R Mc Pherson, G Meroni, C and Meyer, WT Migliore, E Mirabito, L Mitaroff, WA and Mjoernmark, U Moa, T Moch, M Moeller, R Moenig, K and Monge, MR Moraes, D Moreau, X Morettini, P Morton, G and Mueller, U Muenich, K Mulders, M Mulet-Marquis, C and Muresan, R Murray, WJ Muryn, B Myatt, G Myklebust, T and Naraghi, F Nassiakou, M Navarria, FL Navas, S Nawrocki, K Negri, P Neufeld, N Nicolaidou, R Nielsen, BS and Niezurawski, P Nikolenko, M Nomokonov, V Nygren, A and Obraztsov, V Olshevski, AG Onofre, A Orava, R Orazi, G and Osterberg, K Ouraou, A Paganoni, M Paiano, S Pain, R and Paiva, R Palacios, J Palka, H Papadopoulou, TD Pape, L Parkes, C Parodi, F Parzefall, U Passeri, A and Passon, O Pavel, T Pegoraro, M Peralta, L Pernicka, M and Perrotta, A Petridou, C Petrolini, A Phillips, HT and Pierre, F Pimenta, M Piotto, E Podobnik, T Pol, ME and Polok, G Poropat, P Pozdniakov, V Privitera, P Pukhaeva, N Pullia, A Radojicic, D Ragazzi, S Rahmani, H and Rames, J Ratoff, PN Read, AL Rebecchi, P Redaelli, NG and Regler, M Rehn, J Reid, D Reinhardt, R Renton, PB and Resvanis, LK Richard, F Ridky, J Rinaudo, G and Ripp-Baudot, I Rohne, O Romero, A Ronchese, P Rosenberg, EI Rosinsky, P Roudeau, P Rovelli, T Royon, C and Ruhlmann-Kleider, V Ruiz, A Saarikko, H Sacquin, Y and Sadovsky, A Sajot, G Salt, J Sampsonidis, D Sannino, M and Savoy-Navarro, A Schwemling, P Schwering, B and Schwickerath, U Scuri, F Seager, P Sedykh, Y Segar, AM and Seibert, N Sekulin, R Shellard, RC Siebel, M Simard, L Simonetto, F Sisakian, AN Smadja, G Smirnov, N and Smirnova, O Smith, GR Sokolov, A Sopczak, A Sosnowski, R and Spassov, T Spiriti, E Squarcia, S Stanescu, C and Stanic, S Stanitzki, M Stocchi, A Strauss, J Strub, R and Stugu, B Szczekowski, M Szeptycka, M Tabarelli, T and Taffard, A Tegenfeldt, E Terranova, F Thomas, J and Timmermans, J Tinti, N Tkatchev, LG Tobin, M Todorova, S and Tomaradze, A Tome, B Tonazzo, A Tortora, L Tortosa, P Transtromer, G Treille, D Tristram, G Trochimczuk, M and Troncon, C Turluer, ML Tyapkin, IA Tyapkin, P and Tzamarias, S Ullaland, O Uvarov, V Valenti, G Vallazza, E Vander Velde, C Van Dam, P Van den Boeck, W Van Doninck, WK Van Eldik, JV Van Lysebetten, A van Remortel, N and Van Vulpen, I Vegni, G Ventura, L Venus, W Verbeure, F Verdier, P Verlato, M Vertogradov, LS Verzi, V and Vilanova, D Vitale, L Vlasov, E Vodopyanov, AS and Voulgaris, G Vrba, V Wahlen, H Walck, C Washbrook, AJ and Weiser, C Wicke, D Wickens, JH Wilkinson, GR Winter, M Witek, M Wolf, G Yi, J Yushchenko, O Zalewska, A and Zalewski, P Zavrtanik, D Zevgolatakos, E Zimin, NI and Zintchenko, A Zoller, P Zucchelli, GC Zumerle, G DELPHI Collaboration
Abstract: Searches for supersymmetric partners of top and bottom quarks are presented using data taken by the DELPHI experiment at LEP in 1997 and 1998. No deviations from standard model expectations are observed in these data sets, which are taken at centre-of-mass energies of 183 GeV and 189 GeV and correspond to integrated luminosities of 54 pb(-1) and 158 pb(-1). These results are used in combination with those obtained by DELPHI at lower centre-of-mass energies to exclude regions in the squark-neutralino mass plane at 95% confidence level. (C) 2000 Elsevier Science B.V. All rights reserved.
Published: 2000

27. Rapidity-rank structure of p(p)over-bar pairs in hadronic Z(0) decays

Author: Abreu, P Adam, W Adye, T Adzic, P Ajinenko, I and Albrecht, Z Alderweireld, T Alekseev, GD Alemany, R and Allmendinger, T Allport, PP Almehed, S Amaldi, U and Amapane, N Amato, S Anassontzis, EG Andersson, P and Andreazza, A Andringa, S Antilogus, P Apel, WD Arnoud, Y and Asman, B Augustin, JE Augustinus, A Baillon, P and Bambade, P Barao, F Barbiellini, G Barbier, R Bardin, DY and Barker, G Baroncelli, A Battaglia, M Baubillier, M and Becks, KH Begalli, M Behrmann, A Beilliere, P and Belokopytov, Y Benekos, NC Benvenuti, AC Berat, C and Berggren, M Bertrand, D Besancon, M Bigi, M Bilenky, MS and Bizouard, MA Bloch, D Blom, HM Bonesini, M and Boonekamp, M Booth, PSL Borgland, AW Borisov, G Bosio, C and Botner, O Boudinov, E Bouquet, B Bourdarios, C and Bowcock, TJV Boyko, I Bozovic, I Bozzo, M Bracko, M and Branchini, P Brenner, RA Bruckman, P Brunet, JM Bugge, L and Buran, T Buschbeck, B Buschmann, P Cabrera, S and Caccia, M Calvi, M Camporesi, T Canale, V Carena, F and Carroll, L Caso, C Gimenez, MVC Cattai, A Cavallo, FR and Chabaud, V Charpentier, P Checchia, P Chelkov, GA and Chierici, R Chliapnikov, P Chochula, P Chorowicz, V and Chudoba, J Cieslik, K Collins, P Contri, R Cortina, E and Cosme, G Cossutti, F Crawley, HB Crennell, D Crepe, S Crosetti, G Maestro, JC Czellar, S Davenport, M Da Silva, W Della Ricca, G Delpierre, P Demaria, N De Angelis, A De Boer, W De Clercq, C De Lotto, B De Min, A and De Paula, L Dijkstra, H Di Ciaccio, L Dolbeau, J and Doroba, K Dracos, M Drees, J Dris, M Duperrin, A and Durand, JD Eigen, G Ekelof, T Ekspong, G Ellert, M and Elsing, M Engel, JP Santo, ME Fanourakis, G and Fassouliotis, D Fayot, J Feindt, M Ferrer, A and Ferrer-Ribas, E Ferro, F Fichet, S Firestone, A and Flagmeyer, U Foeth, H Fokitis, E Fontanelli, F Franek, B and Frodesen, AG Fruhwirth, R Fulda-Quenzer, F Fuster, J and Galloni, A Gamba, D Gamblin, S Gandelman, M Garcia, C and Gaspar, C Gaspar, M Gasparini, U Gavillet, P Gazis, EN Gele, D Gerdyukov, L Ghodbane, N Gil, I Glege, F and Gokieli, R Golob, B Gomez-Ceballos, G Goncalves, P and Caballero, IG Gopal, G Gorn, L Gracco, V Grahl, J and Graziani, E Gris, P Grosdidier, G Grzelak, K Guy, J and Haag, C Hahn, F Hahn, S Haider, S Hallgren, A and Hamacher, K Hansen, J Harris, FJ Hedberg, V Heising, S and Hernandez, JJ Herquet, P Herr, H Hessing, TL Heuser, JM Higon, E Holmgren, SO Holt, PJ Hoorelbeke, S and Houlden, M Hrubec, J Huber, M Huet, K Hughes, GJ and Hultqvist, K Jackson, JN Jacobsson, R Jalocha, P Janik, R Jarlskog, C Jarlskog, G Jarry, P Jean-Marie, B and Jeans, D Johansson, EK Jonsson, P Joram, C Juillot, P and Jungermann, L Kapusta, F Karafasoulis, K Katsanevas, S and Katsoufis, EC Keranen, R Kernel, G Kersevan, BP and Khokhlov, Y Khomenko, BA Khovanski, NN Kiiskinen, A and King, B Kinvig, A Kjaer, NJ Klapp, O Klein, H Kluit, P Kokkinias, P Kostioukhine, V Kourkoumelis, C and Kouznetsov, O Krammer, M Kriznic, E Krumstein, Z and Kubinec, P Kurowska, J Kurvinen, K Lamsa, JW Lane, DW and Lapin, V Laugier, JP Lauhakangas, R Leder, G and Ledroit, F Lefebure, V Leinonen, L Leisos, A Leitner, R and Lemonne, J Lenzen, G Lepeltier, V Lesiak, T and Lethuillier, M Libby, J Liebig, W Liko, D Lipniacka, A and Lippi, I Loerstad, B Loken, JG Lopes, JH Lopez, JM and Lopez-Fernandez, R Loukas, D Lutz, P Lyons, L and MacNaughton, J Mahon, JR Maio, A Malek, A Malmgren, TGM and Maltezos, S Malychev, V Mandl, F Marco, J Marco, R and Marechal, B Margoni, M Marin, JC Mariotti, C Markou, A Martinez-Rivero, C Martinez-Vidal, F Garcia, SMI and Masik, J Mastroyiannopoulos, N Matorras, F Matteuzzi, C and Matthiae, G Mazzucato, F Mazzucato, M McCubbin, M McKay, R McNulty, R McPherson, G Meroni, C Meyer, WT and Miagkov, A Migliore, E Mirabito, L Mitaroff, WA and Mjoernmark, U Moa, T Moch, M Moeller, R Moenig, K and Monge, MR Moraes, D Moreau, X Morettini, P Morton, G and Mueller, U Muenich, K Mulders, M Mulet-Marquis, C and Muresan, R Murray, WJ Muryn, B Myatt, G Myklebust, T and Naraghi, F Nassiakou, M Navarria, FL Navas, S Nawrocki, K Negri, P Neufeld, N Nielsen, BS Niezurawski, P and Nikolenko, M Nomokonov, V Nygren, A Obraztsov, V and Olshevski, AG Onofre, A Orava, R Orazi, G Osterberg, K and Ouraou, A Paganoni, M Paiano, S Pain, R Paiva, R and Palacios, J Palka, H Papadopoulou, TD Papageorgiou, K and Pape, L Parkes, C Parodi, F Parzefall, U Passeri, A and Passon, O Pavel, T Pegoraro, M Peralta, L Pernicka, M and Perrotta, A Petridou, C Petrolini, A Phillips, HT and Pierre, F Pimenta, M Piotto, E Podobnik, T Pol, ME and Polok, G Poropat, P Pozdniakov, V Privitera, P Pukhaeva, N Pullia, A Radojicic, D Ragazzi, S Rahmani, H and Rames, J Ratoff, PN Read, AL Rebecchi, P Redaelli, NG and Regler, M Rehn, J Reid, D Reinhardt, R Renton, PB and Resvanis, LK Richard, F Ridky, J Rinaudo, G and Ripp-Baudot, I Rohne, O Romero, A Ronchese, P Rosenberg, EI Rosinsky, P Roudeau, P Rovelli, T Royon, C and Ruhlmann-Kleider, V Ruiz, A Saarikko, H Sacquin, Y and Sadovsky, A Sajot, G Salt, J Sampsonidis, D Sannino, M and Schwemling, P Schwering, B Schwickerath, U Scuri, F and Seager, P Sedykh, Y Segar, AM Seibert, N Sekulin, R and Shellard, RC Siebel, M Simard, L Simonetto, F Sisakian, AN Smadja, G Smirnov, N Smirnova, O Smith, GR and Sokolov, A Sopczak, A Sosnowski, R Spassov, T Spiriti, E and Squarcia, S Stanescu, C Stanic, S Stanitzki, M and Stevenson, K Stocchi, A Strauss, J Strub, R Stugu, B and Szczekowski, M Szeptycka, M Tabarelli, T Taffard, A and Tegenfeldt, F Terranova, F Thomas, J Timmermans, J and Tinti, N Tkatchev, LG Tobin, M Todorova, S Tomaradze, A and Tome, B Tonazzo, A Tortora, L Tortosa, P and Transtromer, G Treille, D Tristram, G Trochimczuk, M and Troncon, C Turluer, ML Tyapkin, IA Tzamarias, S and Ullaland, O Uvarov, V Valenti, G Vallazza, E Van Dam, P and Van den Boeck, W Van Eldik, J Van Lysebetten, A van Remortel, N Van Vulpen, I Vegni, G Ventura, L Venus, W and Verbeure, F Verdier, P Verlato, M Vertogradov, LS and Verzi, V Vilanova, D Vitale, L Vlasov, E Vodopyanov, AS and Voulgaris, G Vrba, V Wahlen, H Walck, C Washbrook, AJ Weiser, C Wicke, D Wickens, JH Wilkinson, GR and Winter, M Witek, M Wolf, G Yi, J Yushchenko, O and Zalewska, A Zalewski, P Zavrtanik, D Zevgolatakos, E and Zimin, NI Zintchenko, A Zoller, P Zucchelli, GC Zumerle, G DELPHI Collaboration
Abstract: The rapidity-rank structure of pa pairs is used to analyze the mechanism of baryon production in hadronic Z(0) decay. The relative occurrence of the rapidity-ordered configuration p M p, where M is a meson, and that of pp adjacent pairs is compared. The data are found to be consistent with predictions from a mechanism producing adjacent-rank pp pairs, without requiring ‘string-ordered’ p M p configurations. An upper limit of 15% at 90% confidence is determined for the p M p contribution. (C) 2000 Elsevier Science B.V. All rights reserved.
Published: 2000

28. Measurements of the Z partial decay width into c(c)over-bar and multiplicity of charm quarks per b decay

Author: Abreu, P Adam, W Adye, T Adzic, P Ajinenko, I and Albrecht, Z Alderweireld, T Alekseev, GD Alemany, R and Allmendinger, T Allport, PP Almehed, S Amaldi, U and Amapane, N Amato, S Anassontzis, EG Andersson, P and Andreazza, A Andringa, S Antilogus, P Apel, WD Arnoud, Y and Asman, B Augustin, JE Augustinus, A Baillon, P and Bambade, P Barao, F Barbiellini, G Barbier, R Bardin, DY and Barker, G Baroncelli, A Battaglia, M Baubillier, M and Becks, KH Begalli, M Behrmann, A Beilliere, P and Belokopytov, Y Benekos, NC Benvenuti, AC Berat, C and Berggren, M Bertini, D Bertrand, D Besancon, M Bigi, M and Bilenky, MS Bizouard, MA Bloch, D Blom, HM Bonesini, M Bonivento, W Boonekamp, M Booth, PSL Borgland, AW and Borisov, G Bosio, C Botner, O Boudinov, E Bouquet, B and Bourdarios, C Bowcock, TJV Boyko, I Bozovic, I Bozzo, M and Branchini, P Brenke, T Brenner, RA Bruckmann, P and Brunet, JM Bugge, L Buran, T Burgsmueller, T Buschbeck, B Buschmann, P Cabrera, S Caccia, M Calvi, M and Camporesi, T Canale, V Carena, F Carroll, L Caso, C and Gimenez, MVC Cattai, A Cavallo, FR Chabaud, V and Charpentier, P Chaussard, L Checchia, P Chelkov, GA and Chierici, R Chliapnikov, P Chochula, P Chorowicz, V and Chudoba, J Cieslik, K Collins, P Contri, R Cortina, E and Cosme, G Cossutti, F Cowell, JH Crawley, HB and Crennell, D Crepe, S Crosetti, G Maestro, JC Czellar, S and Davenport, M Da Silva, W Deghorain, A Della Ricca, G and Delpierre, P Demaria, N De Angelis, A De Boer, W De Clercq, C De Lotto, B De Min, A De Paula, L Dijkstra, H and Di Ciaccio, L Dolbeau, J Doroba, K Dracos, M Drees, J Dris, M Duperrin, A Durand, JD Eigen, G Ekelof, T and Ekspong, G Ellert, M Elsing, M Engel, JP Erzen, B and Santo, ME Falk, E Fanourakis, G Fassouliotis, D and Fayot, J Feindt, M Ferrari, P Ferrer, A Ferrer-Ribas, E and Ferro, F Fichet, S Firestone, A Flagmeyer, U Foeth, H Fokitis, E Fontanelli, F Franek, B Frodesen, AG and Fruhwirth, R Fulda-Quenzer, F Fuster, J Galloni, A and Gamba, D Gamblin, S Gandelman, M Garcia, C Gaspar, C and Gaspar, M Gasparini, U Gavillet, P Gazis, EN Gele, D and Gerdyukov, L Ghodbane, N Gil, I Glege, F Gokieli, R and Golob, B Gomez-Ceballos, G Goncalves, P Caballero, IG and Gopal, G Gron, L Gorski, M Gouz, Y Gracco, V Grahl, J Graziani, E Green, C Grimm, HJ Gris, P Grosdidier, G Grzelak, K Gunther, M Guy, J Hahn, F Hahn, S and Haider, S Hallgren, A Hamacher, K Hansen, J Harris, FJ and Hedberg, V Heising, S Hernandez, JJ Herquet, P Herr, H Hessing, TL Heuser, JM Higon, E Holmgren, SO Holt, PJ Hoorelbeke, S Houlden, M Hrubec, J Huet, K and Hughes, GJ Hultqvist, K Jackson, JN Jacobsson, R and Jalocha, P Janik, R Jarlskog, C Jarlskog, G Jarry, P and Jean-Marie, B Johansson, EK Jonsson, P Joram, C Janik, R and Jarlskog, C Jarlskog, G Jarry, P Jean-Marie, B and Jahansson, EK Jonsson, P Joram, C Juillot, P Kapusta, F and Karafasoulis, K Katsanevas, S Katsoufis, EC Keranen, R and Kersevan, BP Khomenko, BA Khovanski, NN Kiiskinen, A and King, B Kinvig, A Kjaer, NJ Klapp, O Klein, H Kluit, P Kokkinias, P Koratzinos, M Kostioukhine, V and Kourkoumelis, C Kouznetsov, O Kriznic, E Krstic, P and Krumstein, Z Kubinec, P Kurowska, J Kurvinen, K Lamsa, JW Lane, DW Langefeld, P Lapin, V Laugier, JP and Lauhakangas, R Leder, G Ledroit, F Lefebure, V Leinonen, L Leisos, A Leitner, R Lemonne, J Lenzen, G and Lepeltier, V Lesiak, T Lethuillier, M Libby, J Liko, D and Lipniacka, A Lippi, I Loerstad, B Loken, JG Lopes, JH Lopez, JM Lopez-Fernandez, R Loukas, D Lutz, P and Lyons, L MacNaughton, J Mahon, JR Maio, A Malek, A and Malmgren, TGM Maltezos, S Malychev, V Mandl, F Marco, J and Marco, R Marechal, B Margoni, M Marin, JC Mariotti, C Markou, A Martinez-Rivero, C Martinez-Vidal, F Garcia, SMI Masik, J Mastroyiannopoulos, N Matorras, F and Matteuzzi, C Matthiae, G Mazzucato, F Mazzucato, M Mc Cubbin, M Mc Kay, R Mc Nulty, R Mc Pherson, G Meroni, C and Meyer, WT Miagkov, A Migliore, E Mirabito, L and Mitaroff, WA Mjoernmark, U Moa, T Moch, M Moeller, R and Moenig, K Monge, MR Moreau, X Morettini, P Morton, G and Mueller, U Muenich, K Mulders, M Mulet-Marquis, C and Muresan, R Murray, WJ Muryn, B Myatt, G Myklebust, T and Naraghi, F Nassiakou, M Navarria, FL Navas, S Nawrocki, K Negri, P Nemecek, S Neufeld, N Neumeister, N and Nicolaidou, R Nielsen, BS Nikolenko, M Nomokonov, V and Normand, A Nygren, A Obraztsov, V Olshevski, AG Onofre, A Orava, R Orazi, G Osterberg, K Ouraou, A Paganoni, M Paiano, S Pain, R Paiva, R Palacios, J Palka, H and Papadopoulou, TD Papageorgiou, K Pape, L Parkes, C and Parodi, F Parzefall, U Passeri, A Passon, O Pegoraro, M and Peralta, L Pernicka, M Perrotta, A Petridou, C and Petrolini, A Phillips, HT Pierre, F Pimenta, M Piotto, E and Podobnik, T Pol, ME Polok, G Poropat, P Pozdniakov, V Privitera, P Pukhaeva, N Pullia, A Radojicic, D and Ragazzi, S Rahmani, H Ratoff, PN Read, AL Rebecchi, P and Redaelli, NG Regler, M Reid, D Reinhardt, R Renton, PB Resvanis, LK Richard, F Ridky, J Rinaudo, G and Rohne, O Romero, A Ronchese, P Rosenberg, EI Rosinsky, P and Roudeau, P Rovelli, T Royon, C Ruhlmann-Kleider, V and Ruiz, A Saarikko, H Sacquin, Y Sadovsky, A Sajot, G and Salt, J Sampsonidis, D Sannino, M Schneider, H and Schwemling, P Schwering, B Schwickerath, U Schyns, MAE and Scuri, F Seager, P Sedykh, Y Segar, AM Sekulin, R and Shellard, RC Sheridan, A Siebel, M Simard, L Simonetto, F Sisakian, AN Smadja, G Smirnova, O Smith, GR and Sokolov, A Sopczak, A Sosnowski, R Spassov, T Spiriti, E and Sponholz, P Squarcia, S Stanescu, C Stanic, S and Stevenson, K Stocchi, A Strauss, J Strub, R Stugu, B and Szczekowski, M Szeptycka, M Tabarelli, T Tchikilev, O and Tegenfeldt, F Terranova, F Thomas, J Timmermans, J and Tinti, N Tkatchev, LG Todorova, S Tomaradze, A Tome, B and Tonazzo, A Tortora, L Transtromer, G Treille, D and Tristram, G Trochimczuk, M Troncon, C Tsirou, A Turluer, ML Tyapkin, IA Tzamarias, S Ullaland, O Uvarov, V and Valenti, G Vallazza, E Vander Velde, C Van Apeldoorn, GW and Van Dam, P Van Doninck, WK Van Eldik, J Van Lysebetten, A and Van Remortel, N Van Vulpen, I Vassilopoulos, N Vegni, G and Ventura, L Venus, W Verbeure, F Verlato, M and Vertogradov, LS Verzi, V Vilanova, D Vitale, L Vlasov, E and Vodopyanov, AS Vollmer, C Voulgaris, G Vrba, V and Wahlen, H Walck, C Weiser, C Wicke, D Wickens, JH and Wilkinson, GR Winter, M Witek, M Wolf, G Yi, J and Yushchenko, O Zalewska, A Zalewski, P Zavrtanik, D and Zevgolatakos, E Zimin, NI Zucchelli, GC Zumerle, G and DELPHI Collaboration
Subjects: Nuclear Theory, High Energy Physics::Phenomenology, High Energy Physics::Experiment, Nuclear Experiment
Abstract: The partial decay width R-c of the Z into c (c) over bar quark pair and the number of charm quarks n(c) per b decay are measured with the DELPHI detector at LEP 1. Particle identification provides clear DO, D+, D-s(+) and Lambda(c)(+) signatures. The charm hadron production rate is measured in each channel by a fit to the scaled energy, impact parameter information and the invariant mass spectrum. Two measurements of R-c are presented, from the D*(+) production rate and from the overall charm counting, including strange charm baryon production, in c (c) over bar events. The multiplicity n(c), which includes hidden c (c) over bar and strange charm baryon production, is inferred from the charm counting in bb events. The final results are R-c = 0.1665 +/- 0.0095 and n(c) = 1.166 +/- 0.086.
Published: 2000

29. W pair production cross-section and W branching fractions in e(+)e(-) interactions at 189 GeV

Author: Abreu, P Adam, W Adye, T Adzic, P Albrecht, Z and Alderweireld, T Alekseev, GD Alemany, R Allmendinger, T and Allport, PP Almehed, S Amaldi, U Amapane, N Amato, S and Anassontzis, EG Andersson, P Andreazza, A Andringa, S and Antilogus, P Apel, WD Arnoud, Y Asman, B Augustin, JE and Augustinus, A Baillon, P Ballestrero, A Bambade, P and Barao, F Barbiellini, G Barbier, R Bardin, DY Barker, G and Baroncelli, A Battaglia, M Baubillier, M Becks, KH and Begalli, M Behrmann, A Beilliere, P Belokopytov, Y and Belous, K Benekos, NC Benvenuti, AC Berat, C Berggren, M and Bertrand, D Besancon, M Bilenky, MS Bizouard, MA and Bloch, D Blom, HM Bonesini, M Boonekamp, M Booth, PSL and Borisov, G Bosio, C Botner, O Boudinov, E Bouquet, B and Bourdarios, C Bowcock, TJV Boyko, I Bozovic, I and Bozzo, M Bracko, M Branchini, P Brenner, RA Bruckman, P and Brunet, JM Bugge, L Buran, T Buschbeck, B Buschmann, P Cabrera, S Caccia, M Calvi, M Camporesi, T Canale, V Carena, F Carroll, L Caso, C Gimenez, MVC Cattai, A Cavallo, FR Chabaud, V Chapkin, P Charpentier, P and Checchia, P Chelkov, GA Chierici, R Chliapnikov, P and Chochula, P Chorowicz, V Chudoba, J Cieslik, K Collins, P Contri, R Cortina, E Cosme, G Cossutti, F Costa, M and Crawley, HB Crennell, D Crepe, S Crosetti, G and Maestro, JC Czellar, S Davenport, M Da Silva, W Della Ricca, G Delpierre, P Demaria, N De Angelis, A De Boer, W De Clercq, C De Lotto, B De Min, A De Paula, L and Dijkstra, H Di Ciaccio, L Dolbeau, J Doroba, K Dracos, M and Drees, J Dris, M Duperrin, A Durand, JD Eigen, G and Ekelof, T Ekspong, G Ellert, M Elsing, M Engel, JP and Santo, ME Fanourakis, G Fassouliotis, D Fayot, J Feindt, M Fernandez, J Ferrer, A Ferrer-Ribas, E Ferro, F and Fichet, S Firestone, A Flagmeyer, U Foeth, H Fokitis, E and Fontanelli, F Franek, B Frodesen, AG Fruhwirth, R and Fulda-Quenzer, F Fuster, J Galloni, A Gamba, D Gamblin, S Gandelman, M Garcia, C Gaspar, C Gaspar, M and Gasparini, U Gavillet, P Gazis, EN Gele, D Geralis, T and Ghodbane, N Gil, I Glege, F Gokieli, R Golob, B and Gomez-Ceballos, G Goncalves, P Caballero, IG Gopal, G and Gorn, L Gouz, Y Gracco, V Grahl, J Graziani, E Gris, P Grosdidier, G Grzelak, K Guy, J Haag, C Hahn, F and Hahn, S Haider, S Hallgren, A Hamacher, K Hansen, J and Harris, FJ Hauler, F Hedberg, V Heising, S and Hernandez, JJ Herquet, P Herr, H Heuser, JM Higon, E and Holmgren, SO Holt, PJ Hoorelbeke, S Houlden, M Hrubec, J and Huber, M Hughes, GJ Hultqvist, K Jackson, JN and Jacobsson, R Jalocha, P Janik, R Jarlskog, C Jarlskog, G and Jarry, P Jean-Marie, B Jeans, D Johansson, EK and Jonsson, P Joram, C Juillot, P Jungermann, L Kapusta, F and Karafasoulis, K Katsanevas, S Katsoufis, EC Keranen, R and Kernel, G Kersevan, BP Khokhlov, Y Khomenko, BA and Khovanski, NN Kiiskinen, A King, B Kinvig, A Kjaer, NJ and Klapp, O Klein, H Kluit, P Kokkinias, P and Kostioukhine, V Kourkoumelis, C Kouznetsov, O Krammer, M and Kriznic, E Krumstein, Z Kubinec, P Kurowska, J Kurvinen, K Lamsa, JW Lane, DW Lapin, V Laugier, JP and Lauhakangas, R Leder, G Ledroit, F Lefebure, V Leinonen, L Leisos, A Leitner, R Lenzen, G Lepeltier, V and Lesiak, T Lethuillier, M Libby, J Liebig, W Liko, D and Lipniacka, A Lippi, I Loerstad, B Loken, JG Lopes, JH and Lopez, JM Lopez-Fernandez, R Loukas, D Lutz, P and Lyons, L MacNaughton, J Mahon, JR Maio, A Malek, A and Malmgren, TGM Maltezos, S Malychev, V Mandl, F Marco, J and Marco, R Marechal, B Margoni, M Marin, JC Mariotti, C Markou, A Martinez-Rivero, C Garcia, SMI Masik, J and Mastroyiannopoulos, N Matorras, F Matteuzzi, C Matthiae, G and Mazzucato, F Mazzucato, M Mc Cubbin, M Mc Kay, R Mc Nulty, R Mc Pherson, G Meroni, C Meyer, WT Miagkov, A and Migliore, E Mirabito, L Mitaroff, WA Mjoernmark, U and Moa, T Moch, M Moeller, R Moenig, K Monge, MR and Moraes, D Moreau, X Morettini, P Morton, G Mueller, U and Muenich, K Mulders, M Mulet-Marquis, C Muresan, R and Murray, WJ Muryn, B Myatt, G Myklebust, T Naraghi, F and Nassiakou, M Navarria, FL Nawrocki, K Negri, P Neufeld, N Nicolaidou, R Nielsen, BS Niezurawski, P Nikolenko, M and Nomokonov, V Nygren, A Obraztsov, V Olshevski, AG and Onofre, A Orava, R Orazi, G Osterberg, K Ouraou, A and Oyanguren, A Paganoni, M Paiano, S Pain, R Paiva, R and Palacios, J Palka, H Papadopoulou, TD Pape, L Parkes, C and Parodi, F Parzefall, U Passeri, A Passon, O Pavel, T and Pegoraro, M Peralta, L Pernicka, M Perrotta, A and Petridou, C Petrolini, A Phillips, HT Pierre, F Pimenta, M Piotto, E Podobnik, T Pol, ME Polok, G Poropat, P and Pozdniakov, V Privitera, P Pukhaeva, N Pullia, A and Radojicic, D Ragazzi, S Rahmani, H Rames, J Ratoff, PN and Read, AL Rebecchi, P Redaelli, NG Regler, M Rehn, J and Reid, D Reinertsen, P Reinhardt, R Renton, PB and Resvanis, LK Richard, F Ridky, J Rinaudo, G Ripp-Baudot, I Rohne, O Romero, A Ronchese, P Rosenberg, EI and Rosinsky, P Roudeau, P Rovelli, T Royon, C and Ruhlmann-Kleider, V Ruiz, A Saarikko, H Sacquin, Y and Sadovsky, A Sajot, G Salt, J Sampsonidis, D Sannino, M and Savoy-Navarro, A Schwemling, P Schwering, B and Schwickerath, U Scuri, F Seager, P Sedykh, Y Segar, AM and Seibert, N Sekulin, R Sette, G Shellard, RC Siebel, M Simard, L Simonetto, F Sisakian, AN Smadja, G and Smirnova, O Smith, GR Solovianov, O Sopczak, A and Sosnowski, R Spassov, T Spiriti, E Squarcia, S Stanescu, C Stanitzki, M Stevenson, K Stocchi, A Strauss, J and Strub, R Stugu, B Szczekowski, M Szeptycka, M Tabarelli, T Taffard, A Tegenfeldt, F Terranova, F Timmermans, J and Tinti, N Tkatchev, LG Tobin, M Todorova, S and Tomaradze, A Tome, B Tonazzo, A Tortora, L Tortosa, P and Transtromer, G Treille, D Tristram, G Trochimczuk, M and Troncon, C Turluer, ML Tyapkin, IA Tyapkin, P Tzamarias, S Ullaland, O Uvarov, V Valenti, G Vallazza, E Van Dam, P Van den Boeck, W Van Doninck, WK Van Eldik, J Van Lysebetten, A van Remortel, N Van Vulpen, I Vegni, G and Ventura, L Venus, W Verbeure, F Verdier, P Verlato, M and Vertogradov, LS Verzi, V Vilanova, D Vitale, L and Vlasov, E Vodopyanov, AS Voulgaris, G Vrba, V Wahlen, H and Walck, C Washbrook, AJ Weiser, C Wicke, D Wickens, JH Wilkinson, GR Winter, M Witek, M Wolf, G Yi, J and Yushchenko, O Zalewska, A Zalewski, P Zavrtanik, D and Zevgolatakos, E Zimin, NI Zintchenko, A Zoller, P and Zucchelli, GC Zumerle, G DELPHI Collaboration
Abstract: {The cross-section for the process e(+)e(-) --> W+ W- has been measured with the data sample collected by DELPHI at an average centre-of-mass energy of 189 GeV and corresponding to an integrated luminosity of 155 pb(-1). Based on the 2392 events selected as WW candidates, the cross-section for the doubly resonant process e(+)e(-) --> W+W- has been measured to be 15.83 +/- 0.38 (stat) +/- 0.20(syst)pb. The branching fractions of the W decay were also measured and found to be in good agreement with the Standard Model expectation. From these a value of the CKM mixing matrix element \textbackslash{} V-cs\textbackslash{} = 1.001 +/- 0.040 (stat) +/- 0.020(syst) was derived. (C) 2000 Elsevier Science B.V. All rights reserved.}
Published: 2000

30. Rapidity-rank structure of p(p)over-bar pairs in hadronic Z(0) decays

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, Alderweireld, T, Alekseev, GD, Alemany, R, Allmendinger, T, Allport, PP, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anassontzis, EG, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, WD, Arnoud, Y, Asman, B, Augustin, JE, Augustinus, A, Baillon, P, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, DY, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, KH, Begalli, M, Behrmann, A, Beilliere, P, Belokopytov, Y, Benekos, NC, Benvenuti, AC, Berat, C, Berggren, M, Bertrand, D, Besancon, M, Bigi, M, Bilenky, MS, Bizouard, MA, Bloch, D, Blom, HM, Bonesini, M, Boonekamp, M, Booth, PSL, Borgland, AW, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, TJV, Boyko, I, Bozovic, I, Bozzo, M, Bracko, M, Branchini, P, Brenner, RA, Bruckman, P, Brunet, JM, Bugge, L, Buran, T, Buschbeck, B, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, MVC, Cattai, A, Cavallo, FR, Chabaud, V, Charpentier, P, Checchia, P, Chelkov, GA, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, HB, Crennell, D, Crepe, S, Crosetti, G, Maestro, JC, Czellar, S, Davenport, M, Da Silva, W, Della Ricca, G, Delpierre, P, Demaria, N, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Min, A, De Paula, L, Dijkstra, H, Di Ciaccio, L, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Duperrin, A, Durand, JD, Eigen, G, Ekelof, T, Ekspong, G, Ellert, M, Elsing, M, Engel, JP, Santo, ME, Fanourakis, G, Fassouliotis, D, Fayot, J, Feindt, M, Ferrer, A, Ferrer-Ribas, E, Ferro, F, Fichet, S, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, AG, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, EN, Gele, D, Gerdyukov, L, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez-Ceballos, G, Goncalves, P, Caballero, IG, Gopal, G, Gorn, L, Gracco, V, Grahl, J, Graziani, E, Gris, P, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, FJ, Hedberg, V, Heising, S, Hernandez, JJ, Herquet, P, Herr, H, Hessing, TL, Heuser, JM, Higon, E, Holmgren, SO, Holt, PJ, Hoorelbeke, S, Houlden, M, Hrubec, J, Huber, M, Huet, K, Hughes, GJ, Hultqvist, K, Jackson, JN, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Jeans, D, Johansson, EK, Jonsson, P, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, EC, Keranen, R, Kernel, G, Kersevan, BP, Khokhlov, Y, Khomenko, BA, Khovanski, NN, Kiiskinen, A, King, B, Kinvig, A, Kjaer, NJ, Klapp, O, Klein, H, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kurowska, J, Kurvinen, K, Lamsa, JW, Lane, DW, Lapin, V, Laugier, JP, Lauhakangas, R, Leder, G, Ledroit, F, Lefebure, V, Leinonen, L, Leisos, A, Leitner, R, Lemonne, J, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Loerstad, B, Loken, JG, Lopes, JH, Lopez, JM, Lopez-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J, Mahon, JR, Maio, A, Malek, A, Malmgren, TGM, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, JC, Mariotti, C, Markou, A, Martinez-Rivero, C, Martinez-Vidal, F, Garcia, SMI, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, McCubbin, M, McKay, R, McNulty, R, McPherson, G, Meroni, C, Meyer, WT, Miagkov, A, Migliore, E, Mirabito, L, Mitaroff, WA, Mjoernmark, U, Moa, T, Moch, M, Moeller, R, Moenig, K, Monge, MR, Moraes, D, Moreau, X, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mulet-Marquis, C, Muresan, R, Murray, WJ, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Nassiakou, M, Navarria, FL, Navas, S, Nawrocki, K, Negri, P, Neufeld, N, Nielsen, BS, Niezurawski, P, Nikolenko, M, Nomokonov, V, Nygren, A, Obraztsov, V, Olshevski, AG, Onofre, A, Orava, R, Orazi, G, Osterberg, K, Ouraou, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, TD, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pavel, T, Pegoraro, M, Peralta, L, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, HT, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Pol, ME, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, PN, Read, AL, Rebecchi, P, Redaelli, NG, Regler, M, Rehn, J, Reid, D, Reinhardt, R, Renton, PB, Resvanis, LK, Richard, F, Ridky, J, Rinaudo, G, Ripp-Baudot, I, Rohne, O, Romero, A, Ronchese, P, Rosenberg, EI, Rosinsky, P, Roudeau, P, Rovelli, T, Royon, C, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Y, Sadovsky, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Seager, P, Sedykh, Y, Segar, AM, Seibert, N, Sekulin, R, Shellard, RC, Siebel, M, Simard, L, Simonetto, F, Sisakian, AN, Smadja, G, Smirnov, N, Smirnova, O, Smith, GR, Sokolov, A, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Squarcia, S, Stanescu, C, Stanic, S, Stanitzki, M, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Taffard, A, Tegenfeldt, F, Terranova, F, Thomas, J, Timmermans, J, Tinti, N, Tkatchev, LG, Tobin, M, Todorova, S, Tomaradze, A, Tome, B, Tonazzo, A, Tortora, L, Tortosa, P, Transtromer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, ML, Tyapkin, IA, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van Dam, P, Van den Boeck, W, Van Eldik, J, Van Lysebetten, A, van Remortel, N, Van Vulpen, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verdier, P, Verlato, M, Vertogradov, LS, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, AS, Voulgaris, G, Vrba, V, Wahlen, H, Walck, C, Washbrook, AJ, Weiser, C, Wicke, D, Wickens, JH, Wilkinson, GR, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, NI, Zintchenko, A, Zoller, P, Zucchelli, GC, Zumerle, G, and Collaboration, DELPHI
Subjects: MODEL, PHYSICS, COLLISIONS, MONTE-CARLO, BARYON PRODUCTION, DIQUARK FRAGMENTATION, JET FRAGMENTATION, PROTON PRODUCTION, E+E-ANNIHILATION, LAMBDA
Abstract: The rapidity-rank structure of pp̄ pairs is used to analyze the mechanism of baryon production in hadronic Z0 decay. The relative occurrence of the rapidity-ordered configuration p M p̄, where M is a meson, and that of pp̄ adjacent pairs is compared. The data are found to be consistent with predictions from a mechanism producing adjacent-rank pp̄ pairs, without requiring 'string-ordered' p M p̄ configurations. An upper limit of 15% at 90% confidence is determined for the p M p̄ contribution. (C) 2000 Elsevier Science B.V.
Published: 2000

31. Search for charginos in e(+)e(-) interactions at root s=189 GeV

Author: Abreu, P Adam, W Adye, T Adzic, P Ajinenko, I and Albrecht, Z Alderweireld, T Alekseev, GD Alemany, R and Allmendinger, T Allport, PP Almehed, S Amaldi, U and Amapane, N Amato, S Anassontzis, EG Andersson, P and Andreazza, A Andringa, S Antilogus, P Apel, WD Arnoud, Y and Asman, B Augustin, JE Augustinus, A Baillon, P and Bambade, P Barao, F Barbiellini, G Barbier, R Bardin, DY and Barker, G Baroncelli, A Battaglia, M Baubillier, M and Becks, KH Begalli, M Behrmann, A Beilliere, P and Belokopytov, Y Benekos, NC Benvenuti, AC Berat, C and Berggren, M Bertrand, D Besancon, M Bigi, M Bilenky, MS and Bizouard, MA Bloch, D Blom, HM Bonesini, M and Boonekamp, M Booth, PSL Borgland, AW Borisov, G Bosio, C and Botner, O Boudinov, E Bouquet, B Bourdarios, C and Bowcock, TJV Boyko, I Bozovic, I Bozzo, M Bracko, M and Branchini, P Brenner, RA Bruckman, P Brunet, JM Bugge, L and Buran, T Buschbeck, B Buschmann, P Cabrera, S and Caccia, M Calvi, M Camporesi, T Canale, V Carena, F and Carroll, L Caso, C Gimenez, MVC Cattai, A Cavallo, FR and Chabaud, V Charpentier, P Checchia, P Chelkov, GA and Chierici, R Chliapnikov, P Chochula, P Chorowicz, V and Chudoba, J Cieslik, K Collins, P Contri, R Cortina, E and Cosme, G Cossutti, F Crawley, HB Crennell, D Crepe, S Crosetti, G Maestro, JC Czellar, S Davenport, M Da Silva, W Della Ricca, G Delpierre, P Demaria, N De Angelis, A De Boer, W De Clercq, C De Lotto, B De Min, A and De Paula, L Dijkstra, H Di Ciaccio, L Dolbeau, J and Doroba, K Dracos, M Drees, J Dris, M Duperrin, A and Durand, JD Eigen, G Ekelof, T Ekspong, G Ellert, M and Elsing, M Engel, JP Santo, ME Fanourakis, G and Fassouliotis, D Fayot, J Feindt, M Ferrer, A and Ferrer-Ribas, E Ferro, F Fichet, S Firestone, A and Flagmeyer, U Foeth, H Fokitis, E Fontanelli, F Franek, B and Frodesen, AG Fruhwirth, R Fulda-Quenzer, F Fuster, J and Galloni, A Gamba, D Gamblin, S Gandelman, M Garcia, C and Gaspar, C Gaspar, M Gasparini, U Gavillet, P Gazis, EN Gele, D Geralis, T Gerdyukov, L Ghodbane, N Gil, I Glege, F Gokieli, R Golob, B Gomez-Ceballos, G and Goncalves, P Caballero, IG Gopal, G Gorn, L Gouz, Y and Gracco, V Grahl, J Graziani, E Gris, P Grosdidier, G and Grzelak, K Guy, J Haag, C Hahn, F Hahn, S Haider, S and Hallgren, A Hamacher, K Hansen, J Harris, FJ and Hedberg, V Heising, S Hernandez, JJ Herquet, P Herr, H and Hessing, TL Heuser, JM Higon, E Holmgren, SO Holt, PJ Hoorelbeke, S Houlden, M Hrubec, J Huber, M Huet, K Hughes, GJ Hultqvist, K Jackson, JN Jacobsson, R and Jalocha, P Janik, R Jarlskog, C Jarlskog, G Jarry, P and Jean-Marie, B Jeans, D Johansson, EK Jonsson, P Joram, C and Juillot, P Jungermann, L Kapusta, F Karafasoulis, K and Katsanevas, S Katsoufis, EC Keranen, R Kernel, G and Kersevan, BP Khokhlov, Y Khomenko, BA Khovanski, NN and Kiiskinen, A King, B Kinvig, A Kjaer, NJ Klapp, O and Klein, H Kluit, P Kokkinias, P Kostioukhine, V and Kourkoumelis, C Kouznetsov, O Krammer, M Kriznic, E and Krumstein, Z Kubinec, P Kurowska, J Kurvinen, K Lamsa, JW Lane, DW Laugier, JP Lauhakangas, R Leder, G and Ledroit, F Lefebure, V Leinonen, L Leisos, A Leitner, R and Lenzen, G Lepeltier, V Lesiak, T Lethuillier, M and Libby, J Liebig, W Liko, D Lipniacka, A Lippi, I and Loerstad, B Loken, JG Lopes, JH Lopez, JM and Lopez-Fernandez, R Loukas, D Lutz, P Lyons, L and MacNaughton, J Mahon, JR Maio, A Malek, A Malmgren, TGM and Maltezos, S Malychev, V Mandl, F Marco, J Marco, R and Marechal, B Margoni, M Marin, JC Mariotti, C Markou, A Martinez-Rivero, C Martinez-Vidal, F Garcia, SMI and Masik, F Mastroyiannopoulos, N Matorras, F Matteuzzi, C and Matthiae, G Mazzucato, F Mazzucato, M Mc Cubbin, M Mc Kay, R Mc Nulty, R Mc Pherson, G Meroni, C Meyer, WT and Migliore, E Mirabito, L Mitaroff, WA Mjoernmark, U Moa, T Moch, M Moeller, R Moenig, K Monge, MR Moraes, D and Moreau, X Morettini, P Morton, G Mueller, U Muenich, K Mulders, M Mulet-Marquis, C Muresan, R Murray, WJ and Muryn, B Myatt, G Myklebust, T Naraghi, F Nassiakou, M and Navarria, FL Navas, S Nawrocki, K Negri, P Neufeld, N Nicolaidou, R Nielsen, BS Niezurawski, P Nikolenko, M and Nomokonov, V Nygren, A Obraztsov, V Olshevski, AG and Onofre, A Orava, R Orazi, G Osterberg, K Ouraou, A and Paganoni, M Paiano, S Pain, R Paiva, R Palacios, J and Palka, H Papadopoulou, TD Pape, L Parkes, C Parodi, F and Parzefall, U Passeri, A Passon, O Pavel, T Pegoraro, M Peralta, L Pernicka, M Perrotta, A Petridou, C and Petrolini, A Phillips, HT Pierre, F Pimenta, M Piotto, E and Podobnik, T Pol, ME Polok, G Poropat, P Pozdniakov, V Privitera, P Pukhaeva, N Pullia, A Radojicic, D and Ragazzi, S Rahmani, H Rames, J Ratoff, PN Read, AL and Rebecchi, P Redaelli, NG Regler, M Rehn, J Reid, D and Reinhardt, R Renton, PB Resvanis, LK Richard, F Ridky, J and Rinaudo, G Ripp-Baudot, I Rohne, O Romero, A and Ronchese, P Rosenberg, EI Rosinsky, P Roudeau, P and Rovelli, T Royon, C Ruhlmann-Kleider, V Ruiz, A and Saarikko, H Sacquin, Y Sadovsky, A Sajot, G Salt, J and Sampsonidis, D Sannino, M Schwemling, P Schwering, B and Schwickerath, U Scuri, F Seager, P Sedykh, Y Segar, AM and Seibert, N Sekulin, R Shellard, RC Siebel, M Simard, L Simonetto, F Sisakian, AN Smadja, G Smirnov, N and Smirnova, O Smith, GR Sokolov, A Sopczak, A Sosnowski, R and Spassov, T Spiriti, E Squarcia, S Stanescu, C and Stanic, S Stanitzki, M Stevenson, K Stocchi, A Strauss, J Strub, R Stugu, B Szczekowski, M Szeptycka, M and Tabarelli, T Taffard, A Tchikilev, O Tegenfeldt, F and Terranova, F Thomas, J Timmermans, J Tinti, N Tkatchev, LG Tobin, M Todorova, S Tomaradze, A Tome, B and Tonazzo, A Tortora, L Tortosa, P Transtromer, G Treille, D Tristram, G Trochimczuk, M Troncon, C Turluer, ML and Tyapkin, IA Tyapkin, P Tzamarias, S Ullaland, O Uvarov, V Valenti, G Vallazza, E Vander Velde, C Van Dam, P and Van den Boeck, W Van Doninck, WK Van Eldik, J Van Lysebetten, A van Remortel, N Van Vulpen, I Vegni, G and Ventura, L Venus, W Verbeure, F Verdier, P Verlato, M and Vertogradov, LS Verzi, V Vilanova, D Vitale, L and Vlasov, E Vodopyanov, AS Voulgaris, G Vrba, V Wahlen, H and Walck, C Washbrook, AJ Weiser, C Wicke, D Wickens, JH Wilkinson, GR Winter, M Witek, M Wolf, G Yi, J and Yushchenko, O Zalewska, A Zalewski, P Zavrtanik, D and Zevgolatakos, E Zimin, NI Zintchenko, A Zoller, P and Zucchelli, GC Zumerle, G DELPHI Collaboration
Abstract: An update of the searches for charginos and gravitinos is presented, based on a data sample corresponding to the 158 pb(-1) recorded by the DELPHI detector in 1998, at a centre-of-mass energy of 189 GeV. No evidence for a signal was found. The lower mass limits are 4-5 GeV/c(2) higher than those obtained at a centre-of-mass energy of 183 GeV. The (mu, M-2) MSSM domain excluded by combining the chargino searches with neutralino searches at the Z resonance implies a limit on the mass of the lightest neutralino which, for a heavy sneutrino, is constrained to be above 31.0 GeV/c(2) for tan beta greater than or equal to 1. (C) 2000 Elsevier Science B.V. All rights reserved.
Published: 2000

32. Upper limit for the decay B- -> tau(-)(v)over-bar(tau) the b -> tau(v)over-bar(tau)X branching ratio

Author: Abreu, P Adam, W Adye, T Adzic, P Ajinenko, I and Albrecht, Z Alderweireld, T Alekseev, GD Alemany, R and Allmendinger, T Allport, PP Almehed, S Amaldi, U and Amapane, N Amato, S Anassontzis, EG Andersson, P and Andreazza, A Andringa, S Antilogus, P Apel, WD Arnoud, Y and Asman, B Augustin, JE Augustinus, A Baillon, P and Bambade, P Barao, F Barbiellini, G Barbier, R Bardin, DY and Barker, G Baroncelli, A Battaglia, M Baubillier, M and Becks, KH Begalli, M Behrmann, A Beilliere, P and Belokopytov, Y Benekos, NC Benvenuti, AC Berat, C and Berggren, M Bertrand, D Besancon, M Bigi, M Bilenky, MS and Bizouard, MA Bloch, D Blom, HM Bonesini, M and Boonekamp, M Booth, PSL Borgland, AW Borisov, G Bosio, C and Botner, O Boudinov, E Bouquet, B Bourdarios, C and Bowcock, TJV Boyko, I Bozovic, I Bozzo, M Bracko, M and Branchini, P Brenner, RA Bruckman, P Brunet, JM Bugge, L and Buran, T Buschbeck, B Buschmann, P Cabrera, S and Caccia, M Calvi, M Camporesi, T Canale, V Carena, F and Carroll, L Caso, C Gimenez, MVC Cattai, A Cavallo, FR and Chabaud, V Charpentier, P Checchia, P Chelkov, GA and Chierici, R Chliapnikov, P Chochula, P Chorowicz, V and Chudoba, J Cieslik, K Collins, P Contri, R Cortina, E and Cosme, G Cossutti, F Crawley, HB Crennell, D Crepe, S Crosetti, G Maestro, JC Czellar, S Davenport, M Da Silva, W Della Ricca, G Delpierre, P Demaria, N De Angelis, A De Boer, W De Clercq, C De Lotto, B De Min, A and De Paula, L Dijkstra, H Di Ciaccio, L Dolbeau, J and Doroba, K Dracos, M Drees, J Dris, M Duperrin, A and Durand, JD Eigen, G Ekelof, T Ekspong, G Ellert, M and Elsing, M Engel, JP Santo, ME Fanourakis, G and Fassouliotis, D Fayot, J Feindt, M Ferrer, A and Ferrer-Ribas, E Ferro, F Fichet, S Firestone, A and Flagmeyer, U Foeth, H Fokitis, E Fontanelli, F Franek, B and Frodesen, AG Fruhwirth, R Fulda-Quenzer, F Fuster, J and Galloni, A Gamba, D Gamblin, S Gandelman, M Garcia, C and Gaspar, C Gaspar, M Gasparini, U Gavillet, P Gazis, EN Gele, D Geralis, T Gerdyukov, L Ghodbane, N Gil, I Glege, F Gokieli, R Golob, B Gomez-Ceballos, G and Goncalves, P Caballero, IG Gopal, G Gorn, L Gouz, Y and Gracco, V Grahl, J Graziani, E Gris, P Grosdidier, G and Grzelak, K Guy, J Haag, C Hahn, F Hahn, S Haider, S and Hallgren, A Hamacher, K Hansen, J Harris, FJ and Hedberg, V Heising, S Hernandez, JJ Herquet, P Herr, H and Hessing, TL Heuser, JM Higon, E Holmgren, SO Holt, PJ Hoorelbeke, S Houlden, M Hrubec, J Huber, M Huet, K Hughes, GJ Hultqvist, K Jackson, JN Jacobsson, R and Jalocha, P Janik, R Jarlskog, C Jarlskog, G Jarry, P and Jean-Marie, B Jeans, D Johansson, EK Jonsson, P Joram, C and Juillot, P Jungermann, L Kapusta, F Karafasoulis, K and Katsanevas, S Katsoufis, EC Keranen, R Kernel, G and Kersevan, BP Khomenko, BA Khovanski, NN Kiiskinen, A and King, B Kinvig, A Kjaer, NJ Klapp, O Klein, H Kluit, P Kokkinias, P Kostioukhine, V Kourkoumelis, C and Kouznetsov, O Krammer, M Kriznic, E Krstic, J Krumstein, Z Kubinec, P Kurowska, J Kurvinen, K Lamsa, JW Lane, DW Lapin, V Laugier, JP Lauhakangas, R Leder, G and Ledroit, F Lefebure, V Leinonen, L Leisos, A Leitner, R and Lenzen, G Lepeltier, V Lesiak, T Lethuillier, M and Libby, J Liebig, W Liko, D Lipniacka, A Lippi, I and Loerstad, B Loken, JG Lopes, JH Lopez, JM and Lopez-Fernandez, R Loukas, D Lutz, P Lyons, L and MacNaughton, J Mahon, JR Maio, A Malek, A Malmgren, TGM and Maltezos, S Malychev, V Mandl, F Marco, J Marco, R and Marechal, B Margoni, M Marin, JC Mariotti, C Markou, A Martinez-Rivero, C Martinez-Vidal, F Garcia, SMI and Masik, J Mastroyiannopoulos, N Matorras, F Matteuzzi, C and Matthiae, G Mazzucato, F Mazzucato, M Mc Cubbin, M Mc Kay, R Mc Nulty, R Mc Pherson, G Meroni, C Meyer, WT and Miagkov, A Migliore, E Mirabito, L Mitaroff, WA and Mjoernmark, U Moa, T Moch, M Moeller, R Moenig, K and Monge, MR Moraes, D Moreau, X Morettini, P Morton, G and Mueller, U Muenich, K Mulders, M Mulet-Marquis, C and Muresan, R Murray, WJ Muryn, B Myatt, G Myklebust, T and Naraghi, F Nassiakou, M Navarria, FL Navas, S Nawrocki, K Negri, P Neufeld, N Nicolaidou, R Nielsen, BS and Niezurawski, P Nikolenko, M Nomokonov, V Nygren, A and Obraztsov, V Olshevski, AG Onofre, A Orava, R Orazi, G and Osterberg, K Ouraou, A Paganoni, M Paiano, S Pain, R and Paiva, R Palacios, J Palka, H Papadopoulou, TD Pape, L Parkes, C Parodi, F Parzefall, U Passeri, A and Passon, O Pavel, T Pegoraro, M Peralta, L Pernicka, M and Perrotta, A Petridou, C Petrolini, A Phillips, HT and Pierre, F Pimenta, M Piotto, E Podobnik, T Pol, ME and Polok, G Poropat, P Pozdniakov, V Privitera, P Pukhaeva, N Pullia, A Radojicic, D Ragazzi, S Rahmani, H and Rames, J Ratoff, PN Read, AL Rebecchi, P Redaelli, NG and Rehn, J Reid, D Reinhardt, R Renton, PB Resvanis, LK and Richard, F Ridky, J Rinaudo, G Ripp-Baudot, I Rohne, O Romero, A Ronchese, P Rosenberg, EI Rosinsky, P and Roudeau, P Rovelli, T Royon, C Ruhlmann-Kleider, V Ruiz, A Saarikko, H Sacquin, Y Sadovsky, A Sajot, G Salt, J Sampsonidis, D Sannino, M Schwemling, P Schwering, B and Schwickerath, U Scuri, F Seager, P Sedykh, Y Segar, AM Seibert, N Sekulin, R Shellard, RC Siebel, M and Simard, L Simonetto, F Sisakian, AN Smadja, G Smirnov, N and Smirnova, O Smith, GR Sokolov, A Sopczak, A and Sosnowski, R Spassov, T Spiriti, E Squarcia, S Stanescu, C Stanic, S Stanitzki, M Stevenson, K Stocchi, A and Strauss, J Strub, R Stugu, B Szczekowski, M Szeptycka, M and Tabarelli, T Taffard, A Tegenfeldt, F Terranova, F and Thomas, J Timmermans, J Tinti, N Tkatchev, LG Tobin, M and Todorova, S Tomaradze, A Tome, B Tonazzo, A Tortora, L Tortosa, P Transtromer, G Treille, D Tristram, G and Trochimczuk, M Troncon, C Turluer, ML Tyapkin, IA and Tyapkin, P Tzamarias, S Ullaland, O Uvarov, V Valenti, G and Vallazza, E Van Dam, P Van den Boeck, W Van Doninck, WK and Van Eldik, J Van Lysebetten, A van Remortel, N Van Vulpen, I Vegni, G Ventura, L Venus, W Verbeure, F and Verdier, P Verlato, M Vertogradov, LS Verzi, V Vilanova, D Vitale, L Vlasov, E Vodopyanov, AS Voulgaris, G and Vrba, V Wahlen, H Walck, C Washbrook, AJ Weiser, C and Wicke, D Wickens, JH Wilkinson, GR Winter, M Witek, M and Wolf, G Yi, J Yushchenko, O Zalewska, A Zalewski, P and Zavrtanik, D Zevgolatakos, E Zimin, NI Zintchenko, A and Zoller, P Zucchelli, GC Zumerle, G DELPHI Collaboration
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract: The branching ratio for the leptonic decay of charged B mesons (B- –> tau (-))over bar>(tau)) has been measured using selected leptonic tau (-) –> l(-)nu (tau))over bar>(l) and hadronic tau (-) –> nu X-tau decays in Z –> b (b) over bar decays recorded by DELPHI at LEP1 in 1992-1995. The result, BR(B- –> tau (-))over bar>(tau)) < 1.1 x 10(-3) at the 90% confidence level, is consistent with standard model expectations and puts a constraint on the ratio tan /MH+/- < 0.46 (GeV/c(2))(-1) in the framework of models with two Higgs doublets (type II Higgs doublet model). From the missing energy distribution in Z –> b (b) over bar decays without identified leptons, the b –> tau)over bar>X-tau branching ratio has been measured in the hadronic channel tau –> nu X-tau’. The result, BR(b –> tau)over bar>X-tau) = (2.19 +/- 0.24 (stat) +/- 0.39 (syst))%, is consistent with the Standard Model prediction and with previous experimental measurements. (C) 2000 Elsevier Science B.V. All rights reserved.
Published: 2000

33. Measurement of the (B)over-bar -> D-(*)pi l(nu)over-bar(l) branching fraction

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, Alderweireld, T, Alekseev, GD, Alemany, R, Allmendinger, T, Allport, PP, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anassontzis, EG, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, WD, Arnoud, Y, Asman, B, Augustin, JE, Augustinus, A, Baillon, P, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, DY, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, KH, Begalli, M, Behrmann, A, Beilliere, P, Belokopytov, Y, Benekos, NC, Benvenuti, AC, Berat, C, Berggren, M, Bertini, D, Bertrand, D, Besancon, M, Bigi, M, Bilenky, MS, Bizouard, MA, Bloch, D, Blom, HM, Bonesini, M, Bonivento, W, Boonekamp, M, Booth, PSL, Borgland, AW, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, TJV, Boyko, I, Bozovic, I, Bozzo, M, Bracko, M, Branchini, P, Brenner, RA, Bruckman, P, Brunet, JM, Bugge, L, Buran, T, Buschbeck, B, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, MVC, Cattai, A, Cavallo, FR, Chabaud, V, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, GA, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, HB, Crennell, D, Crepe, S, Crosetti, G, Maestro, JC, Czellar, S, Davenport, M, Da Silva, W, Della Ricca, G, Delpierre, P, Demaria, N, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Min, A, De Paula, L, Dijkstra, H, Di Ciaccio, L, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Duperrin, A, Durand, JD, Eigen, G, Ekelof, T, Ekspong, G, Ellert, M, Elsing, M, Engel, JP, Santo, ME, Fanourakis, G, Fassouliotis, D, Fayot, J, Feindt, M, Ferrari, P, Ferrer, A, Ferrer-Ribas, E, Ferro, F, Fichet, S, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, AG, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, EN, Gele, D, Gerdyukov, L, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez-Ceballos, G, Goncalves, P, Caballero, IG, Gopal, G, Gorn, L, Gracco, V, Grahl, J, Graziani, E, Gris, P, Grosdidier, G, Grzelak, K, Guy, J, Hahn, F, Hanh, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, FJ, Hedberg, V, Heising, S, Hernandez, JJ, Herquet, P, Herr, H, Hessing, TL, Heuser, JM, Higon, E, Holmgren, SO, Holt, PJ, Hoorelbeke, S, Houlden, M, Hrubec, J, Huber, M, Huet, K, Hughes, GJ, Hultqvist, K, Jackson, JN, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Jeans, D, Johansson, EK, Jonsson, P, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, EC, Keranen, R, Kernel, G, Kersevan, BP, Khokhlov, Y, Khomenko, BA, Khovanski, NN, Kiiskinen, A, King, B, Kinvig, A, Kjaer, NJ, Klapp, O, Klein, H, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kurowska, J, Kurvinen, K, Lamsa, JW, Lane, DW, Lapin, V, Laugier, JP, Lauhakangas, R, Leder, G, Ledroit, F, Lefebure, V, Leinonen, L, Leisos, A, Leitner, R, Lemonne, J, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Loerstad, B, Loken, JG, Lopes, JH, Lopez, JM, Lopez-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J, Mahon, JR, Maio, A, Malek, A, Malmgren, TGM, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, JC, Mariotti, C, Markou, A, Martinez-Rivero, C, Martinez-Vidal, F, Garcia, SMI, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, McCubbin, M, McKay, R, McNulty, R, McPherson, G, Meroni, C, Meyer, WT, Miagkov, A, Migliore, E, Mirabito, L, Mitaroff, WA, Mjoernmark, U, Moa, T, Moch, M, Moeller, R, Moenig, K, Monge, MR, Moreau, X, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mulet-Marquis, C, Muresan, R, Murray, WJ, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Nassiakou, M, Navarria, FL, Navas, S, Nawrocki, K, Negri, P, Neufeld, N, Nicolaidou, R, Nielsen, BS, Niezurawski, P, Nikolenko, M, Nomokonov, V, Nygren, A, Obraztsov, V, Olshevski, AG, Onofre, A, Orava, R, Orazi, G, Osterberg, K, Ouraou, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, TD, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pavel, T, Pegoraro, M, Peralta, L, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, HT, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Pol, ME, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, PN, Read, AL, Rebecchi, P, Redaelli, NG, Regler, M, Rehn, J, Reid, D, Reinhardt, R, Renton, PB, Resvanis, LK, Richard, F, Ridky, J, Rinaudo, G, Ripp-Baudot, I, Rohne, O, Romero, A, Ronchese, P, Rosenberg, EI, Rosinsky, P, Roudeau, P, Rovelli, T, Royon, C, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Y, Sadovsky, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Seager, P, Sedykh, Y, Segar, AM, Seibert, N, Sekulin, R, Shellard, RC, Siebel, M, Simard, L, Simonetto, F, Sisakian, AN, Smadja, G, Smirnov, N, Smirnova, O, Smith, GR, Sokolov, A, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Squarcia, S, Stanescu, C, Stanic, S, Stanitzki, M, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Taffard, A, Tegenfeldt, F, Terranova, F, Thomas, J, Timmermans, J, Tinti, N, Tkatchev, LG, Tobin, M, Todorova, S, Tomaradze, A, Tome, B, Tonazzo, A, Tortora, L, Tortosa, P, Transtromer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, ML, Tyapkin, IA, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Vander Velde, C, Van Dam, P, Van den Boeck, W, Van Doninck, WK, Van Eldik, J, Van Lysebetten, A, van Remortel, N, Van Vulpen, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verlato, M, Vertogradov, LS, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, AS, Voulgaris, G, Vrba, V, Wahlen, H, Walck, C, Washbrook, AJ, Weiser, C, Wicke, D, Wickens, JH, Wilkinson, GR, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Savrtanik, D, Zevgolatakos, E, Zimin, NI, Zintchenko, A, Zoller, P, Zucchelli, GC, Zumerle, G, and Collaboration, DELPHI
Subjects: CB-VERTICAL-BAR, DELPHI DETECTOR, DECAYS
Published: 2000

34. Photon events with missing energy at root s=183 to 189 GeV

Author: Abreau, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, Alderweireld, T, Alekseev, GD, Alemany, R, Allmendinger, T, Allport, PP, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anassontzis, EG, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, WD, Arnoud, Y, Asman, B, Augustin, JE, Augustinus, A, Baillon, P, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, DY, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, KH, Begalli, M, Behrmann, A, Beilliere, P, Belokopytov, Y, Benekos, NC, Benvenuti, AC, Berat, C, Berggren, M, Bertrand, D, Besancon, M, Bigi, M, Bilenky, MS, Bizouard, MA, Bloch, D, Blom, HM, Bonesini, M, Boonekamp, M, Booth, PSL, Borgland, AW, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, TJV, Boyko, I, Bozovic, I, Bozzo, M, Bracko, M, Branchini, P, Brenner, RA, Bruckman, P, Brunet, JM, Bugge, L, Buran, T, Buschbeck, B, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, MVC, Cattai, A, Cavallo, FR, Chabaud, V, Charpentier, P, Checchia, P, Chelkov, GA, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, HB, Crennell, D, Crepe, S, Crosetti, G, Maestro, JC, Czellar, S, Davenport, M, Da Silva, W, Della Ricca, G, Delpierre, P, Demaria, N, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Min, A, De Paula, L, Dijkstra, H, Di Ciaccio, L, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Duperrin, A, Durand, JD, Eigen, G, Ekelof, T, Ekspong, G, Ellert, M, Elsing, M, Engel, JP, Santo, ME, Falk, E, Fanourakis, G, Fassouliotis, D, Fayot, J, Feindt, M, Ferrari, P, Ferrer, A, Ferrer-Ribas, E, Ferro, F, Fichet, S, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, AG, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, EN, Gele, D, Gerdyukov, L, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez-Ceballos, G, Goncalves, P, Caballero, IG, Gopal, G, Gorn, L, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Gris, P, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, FJ, Hedberg, V, Heising, S, Hernandez, JJ, Herquet, P, Herr, H, Hessing, TL, Heuser, JM, Higon, E, Holmgren, SO, Holt, PJ, Hoorelbeke, S, Houlden, M, Hrubec, J, Huber, M, Huet, K, Hughes, GJ, Hultqvist, K, Jackson, JN, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Jeans, D, Johansson, EK, Jonsson, P, Joran, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, EC, Keranen, R, Kernel, G, Kersevan, BP, Khokhlov, Y, Khomenko, BA, Khovanski, NN, Kiiskinen, A, King, B, Kinvig, A, Kjaer, NJ, Klapp, O, Klein, H, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kurowska, J, Kurvinen, K, Lamsa, JW, Lane, DW, Lapin, V, Laugier, JP, Lauhakangas, R, Leder, G, Ledroit, F, Lefebure, V, Leinonen, L, Leisos, A, Leitner, R, Lemonne, J, Lenzen, G, Lepeltier, V, Lesiak, T, Letuillier, M, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Loerstad, B, Loken, JG, Lopes, JH, Lopez, JM, Lopez-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J, Mahon, JR, Maio, A, Malek, A, Malmgren, TGM, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, JC, Mariotti, C, Markou, A, Martinez-Rivero, C, Martinez-Vidal, F, Garcia, SMI, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, McCubbin, M, Mc Kay, R, Mc Nulty, R, Mc Pherson, G, Meroni, C, Meyer, WT, Migliore, E, Mirabito, L, Mitaroff, WA, Mjoernmark, U, Moa, T, Moch, M, Moeller, R, Moenig, K, Monge, MR, Moraes, D, Moreau, X, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mulet-Marquis, C, Muresan, R, Murray, WJ, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Nassiakou, M, Navarria, FL, Navas, S, Nawrocki, K, Negri, P, Neufeld, N, Nicolaidou, R, Nielsen, BS, Niezurawski, P, Nikolenko, R, Nomokonov, V, Nygren, A, Obraztsov, V, Olshevski, AG, Onofre, A, Orava, R, Orazi, G, Osterberg, K, Ouraou, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, TD, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pavel, T, Pegoraro, M, Peralta, L, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, HT, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Pol, ME, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, PN, Read, AL, Rebecchi, P, Redaelli, NG, Regler, M, Rehn, J, Reid, D, Reinhardt, R, Renton, PB, Resvanis, LK, Richard, F, Ridky, J, Rinaudo, G, Ripp-Baudot, I, Rohne, O, Romero, A, Ronchese, P, Rosenberg, EI, Rosinsky, P, Roudeau, P, Rovelli, T, Royon, C, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Y, Sadovsky, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Seager, P, Sedykh, Y, Segar, AM, Seibert, N, Sekulin, R, Shellard, RC, Siebel, M, Simard, L, Simonetto, F, Sisakian, AN, Smadja, G, Smirnov, N, Smirnova, O, Smith, GR, Sokolov, A, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Squarcia, S, Stanescu, C, Stanic, S, Stanitzki, M, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Taffard, A, Tegenfeldt, F, Terranova, F, Thomas, J, Timmermans, J, Tinti, N, Tkatchev, LG, Tobin, M, Todorova, S, Tomaradze, A, Tome, B, Tonazzo, A, Tortora, L, Tortosa, P, Transtromer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, ML, Tyapkin, IA, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van Dam, P, Van den Boeck, W, Van Eldik, J, Van Lysebetten, A, van Remortel, N, Van Vulpen, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verdier, P, Verlato, M, Vertogradov, LS, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, AS, Voulgaris, G, Vrba, V, Wahlen, H, Walck, C, Washbrook, AJ, Weiser, C, Wicke, D, Wickens, JH, Wilkinson, GR, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, NI, Zintchenko, A, Zoller, P, Zucchelli, GC, Zumerle, G, Collaboration, DELPHI, Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Delphi (IHEF, IoP, FNWI), UCL - SST/IRMP - Institut de recherche en mathématique et physique, 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), 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), 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), 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), 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 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), BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Poropat, Paolo, and Vitale, Lorenzo
Subjects: NEUTRALINOS, Particle physics, DIMENSIONS, Photon, Physics and Astronomy (miscellaneous), Physics beyond the Standard Model, Astrophysics::High Energy Astrophysical Phenomena, STANDARD MODEL, FOS: Physical sciences, Scale (descriptive set theory), 7. Clean energy, 01 natural sciences, Partícules (Física nuclear), Standard Model, High Energy Physics - Experiment, Gravitation, High Energy Physics - Experiment (hep-ex), E(+)E(-) COLLISIONS, SIGNALS, SEARCH, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Nuclear Experiment, Engineering (miscellaneous), DELPHI, Physics, Missing energy, 010308 nuclear & particles physics, SUPERLIGHT GRAVITINO, LEP, LARGE ELECTRON POSITRON COLLIDER, SINGLE-PHOTON, COLLIDERS, PARTICLE PHYSICS, Production (computer science), Física nuclear, High Energy Physics::Experiment, Neutrino, Particle Physics - Experiment
Abstract: The production of single photons has been studied in the reaction e+e- -> gamma + invisible particles at centre-of-mass energies of 183 GeV and 189 GeV. A previously published analysis of events with multi-photon final states accompanied by missing energy has been updated with 189 GeV data. The data were collected with the DELPHI detector and correspond to integrated luminosities of about 51 pb^{-1} and 158 pb^{-1} at the two energies. The number of light neutrino families is measured to be 2.84 +/- 0.15(stat) +/- 0.14(syst). The absence of an excess of events beyond that expected from Standard Model processes is used to set limits on new physics as described by supersymmetric and composite models. A limit on the gravitational scale is also determined., 22 pages, 10 figures
Published: 2000
Full Text: View/download PDF

35. Determination of the e(+)e(-)->gamma gamma(gamma) cross-section at centre-of-mass energies ranging from 189 GeV to 202 GeV

Author: Abreu, P Adam, W Adye, T Adzic, P Albrecht, Z and Alderweireld, T Alekseev, GD Alemany, R Allmendinger, T and Allport, PP Almehed, S Amaldi, U Amapane, N Amato, S and Anassontzis, EG Andersson, P Andreazza, A Andringa, S and Antilogus, P Apel, WD Arnoud, Y Asman, B Augustin, JE and Augustinus, A Baillon, P Ballestrero, A Bambade, P and Barao, F Barbiellini, G Barbier, R Bardin, DY Barker, G and Baroncelli, A Battaglia, M Baubillier, M Becks, KH and Begalli, M Behrmann, A Beilliere, P Belokopytov, Y and Belous, K Benekos, NC Benvenuti, AC Berat, C Berggren, M and Berntzon, L Bertrand, D Besancon, M Bilenky, MS and Bizouard, MA Bloch, D Blom, HM Bonesini, M Boonekamp, M and Booth, PSL Borisov, G Bosio, C Botner, O Boudinov, E and Bouquet, B Bourdarios, C Bowcock, TJV Boyko, I and Bozovic, I Bozzo, M Bracko, M Branchini, P Brenner, RA and Bruckman, P Brunet, JM Bugge, L Buran, T Buschbeck, B Buschmann, P Cabrera, S Caccia, M Calvi, M and Camporesi, T Canale, V Carena, F Carroll, L Gimenez, MVC and Cattai, A Cavallo, FR Chapkin, M Charpentier, P and Checchia, P Chelkov, GA Chierici, R Chliapnikov, P and Chochula, P Chorowicz, V Chudoba, J Cieslik, K Collins, P Contri, R Cortina, E Cosme, G Cossutti, F Costa, M and Crawley, HB Crennell, D Crosetti, G Maestro, JC and Czellar, S D'Hondt, J Dalmau, J Davenport, M Da Silva, W and Della Ricca, G Delpierre, P Demaria, N De Angelis, A and De Boer, W De Clercq, C De Lotto, B De Min, A De Paula, L Dijkstra, H Di Ciaccio, L Dolbeau, J Doroba, K and Dracos, M Drees, J Dris, M Eigen, G Ekelof, T and Ellert, M Elsing, M Engel, JP Santo, ME Fanourakis, G and Fassouliotis, D Feindt, M Fernandez, J Ferrer, A and Ferrer-Ribas, E Ferro, F Firestone, A Flagmeyer, U and Foeth, H Fokitis, E Fontanelli, F Franek, B Frodesen, AG and Fruhwirth, R Fulda-Quenzer, F Fuster, J Galloni, A and Gamba, D Gamblin, S Gandelman, M Garcia, C Gaspar, C and Gaspar, M Gasparini, U Gavillet, P Gazis, EN Gele, D and Geralis, T Ghodbane, N Gil, I Glege, F Gokieli, R and Golob, B Gomez-Ceballos, G Goncalves, P Caballero, IG and Gopal, G Gorn, L Gouz, Y Gracco, V Grahl, J and Graziani, E Gris, P Grosdidier, G Grzelak, K Guy, J and Haag, C Hahn, F Hahn, S Haider, S Hajduk, Z and Hallgren, A Hamacher, K Hansen, J Harris, FJ Hauler, F and Hedberg, V Heising, S Hernandez, JJ Herquet, P Herr, H Higon, E Holmgren, SO Holt, PJ Hoorelbeke, S and Houlden, M Hrubec, J Huber, M Hughes, GJ Hultqvist, K and Jackson, JN Jacobsson, R Jalocha, P Janik, R and Jarlskog, C Jarlskog, G Jarry, P Jean-Marie, B Jeans, D and Johansson, EK Jonsson, P Joram, C Juillot, P and Jungermann, L Kapusta, F Karafasoulis, K Katsanevas, S and Katsoufis, EC Keranen, R Kernel, G Kersevan, BP and Khokhlov, Y Khomenko, BA Khovanski, NN Kiiskinen, A and King, B Kinvig, A Kjaer, NJ Klapp, O Kluit, P and Kokkinias, P Kostioukhine, V Kourkoumelis, C Kouznetsov, O and Krammer, M Kriznic, E Krumstein, Z Kubinec, P and Kucewicz, W Kurowska, J Kurvinen, K Lamsa, JW Lane, DW and Lapin, V Laugier, JP Lauhakangas, R Leder, G and Ledroit, F Leinonen, L Leisos, A Leitner, R Lemonne, J and Lenzen, G Lepeltier, V Lethuillier, M Libby, J and Liebig, W Liko, D Lipniacka, A Lippi, I Loerstad, B and Loken, JG Lopes, JH Lopez, JM Lopez-Fernandez, R Loukas, D Lutz, P Lyons, L MacNaughton, J Mahon, JR Maio, A and Malek, A Maltezos, S Malychev, V Mandl, F Marco, J and Marco, R Marechal, B Margoni, M Marin, JC Mariotti, C Markou, A Martinez-Rivero, C Garcia, SM Masik, J and Mastroyiannopoulos, N Matorras, F Matteuzzi, C Matthiae, G and Mazzucato, F Mazzucato, M Mc Cubbin, M Mc Kay, R Mc Nulty, R Mc Pherson, G Merle, E Meroni, C Meyer, WT and Miagkov, A Migliore, E Mirabito, L Mitaroff, WA and Mjoernmark, U Moa, T Moch, M Moeller, R Moenig, K and Monge, MR Moraes, D Morettini, P Morton, G Mueller, U and Muenich, K Mulders, M Mulet-Marquis, C Mundim, LM and Muresan, R Murray, WJ Muryn, B Myatt, G Myklebust, T and Naraghi, F Nassiakou, M Navarria, FL Nawrocki, K Negri, P Neufeld, N Nicolaidou, R Nielsen, BS Niezurawski, P and Nikolenko, M Nomokonov, V Nygren, A Mucha, AO and Obraztsov, V Olshevski, AG Onofre, A Orava, R Orazi, G and Osterberg, K Ouraou, A Oyanguren, A Paganoni, M and Paiano, S Pain, R Paiva, R Palacios, J Papadopoulou, TD and Pape, L Parkes, C Parodi, F Parzefall, U Passeri, A and Passon, O Pavel, T Pegoraro, M Peralta, L Pernicka, M Perrotta, A Petridou, C Petrolini, A Phillips, HT and Pierre, F Pimenta, M Piotto, E Podobnik, T Poireau, V and Pol, ME Polok, G Poropat, P Pozdniakov, V Privitera, P Pukhaeva, N Pullia, A Radojicic, D Ragazzi, S and Rahmani, H Rames, J Ratoff, PN Read, AL Rebecchi, P and Redaelli, NG Regler, M Rehn, J Reid, D Reinertsen, P and Reinhardt, R Renton, PB Resvanis, LK Richard, F Ridky, J and Rinaudo, G Ripp-Baudot, I Romero, A Ronchese, P and Rosenberg, EI Rosinsky, P Roudeau, P Rovelli, T and Ruhlmann-Kleider, V Ruiz, A Saarikko, H Sacquin, Y and Sadovsky, A Sajot, G Salt, J Sampsonidis, D Sannino, M and Savoy-Navarro, A Schwemling, P Schwering, B and Schwickerath, U Scuri, F Seager, P Sedykh, Y Segar, AM and Seibert, N Sekulin, R Sette, G Shellard, RC Siebel, M Simard, L Simonetto, F Sisakian, AN Smadja, G and Smirnova, O Smith, GR Solovianov, O Sopczak, A and Sosnowski, R Spassov, T Spiriti, E Squarcia, S Stanescu, C Stanitzki, M Stevenson, K Stocchi, A Strauss, J and Strub, R Stugu, B Szczekowski, M Szeptycka, M Tabarelli, T Taffard, A Tegenfeldt, F Terranova, F Timmermans, J and Tinti, N Tkatchev, LG Tobin, M Todorova, S Tome, B and Tonazzo, A Tortora, L Tortosa, P Transtromer, G and Treille, D Tristram, G Trochimczuk, M Troncon, C and Turluer, ML Tyapkin, IA Tyapkin, P Tzamarias, S and Ullaland, O Uvarov, V Valenti, G Vallazza, E Van Dam, P and Van den Boeck, W Van Eldik, J Van Lysebetten, A van Remortel, N Van Vulpen, I Vegni, G Ventura, L Venus, W and Verbeure, F Verdier, P Verlato, M Vertogradov, LS and Verzi, V Vilanova, D Vitale, L Vlasov, E Vodopyanov, AS and Voulgaris, G Vrba, V Wahlen, H Washbrook, AJ Weiser, C Wicke, D Wickens, JH Wilkinson, GR Winter, M Wolf, G Yi, J Yushchenko, O Zalewska, A Zalewski, P and Zavrtanik, D Zevgolatakos, E Zimin, NI Zintchenko, A and Zoller, P Zumerle, G Zupan, M
Subjects: Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Experiment
Abstract: A test of the QED process e(+)e(-) –> gamma gamma>(*) over bar *(gamma) is reported. The data analysed were collected with the DELPHI detector in 1998 and 1999 at the highest energies achieved at LEP, reaching 202 GeV in the centre-of-mass. The total integrated luminosity amounts to 375.7 pb(-1). The differential and total cross-sections for the process e(+)e(-) –> gamma gamma were measured, and found to be in agreement with the QED prediction. 95% confidence level (C.L.) lower limits on the QED cut-off parameters of Lambda (+) > 330 GeV and Lambda_ > 320 GeV were derived. A 95% C.L. lower bound on the mass of an excited electron of 311 GeV/c(2) (for lambda gamma = 1) was obtained, s-channel virtual graviton exchange was searched for, resulting in 95% C.L. lower limits on the string mass scale, M-S: M-S > 713 GeV/c(2) (lambda = 1) and M-S > 691 GeV/c(2) (lambda = -1). (C) 2000 Published by Elsevier Science B.V.
Published: 2000

36. Measurement and interpretation of fermion-pair production at LEP energies of 183 and 189 GeV

Author: Abreu, P Adam, W Adye, T Adzic, P Albrecht, Z and Alderweireld, T Alekseev, GD Alemany, R Allmendinger, T and Allport, PP Almehed, S Amaldi, U Amapane, N Amato, S and Anassontzis, EG Andersson, P Andreazza, A Andringa, S and Antilogus, P Apel, WD Arnoud, Y Asman, B Augustin, JE and Augustinus, A Baillon, P Ballestrero, A Bambade, P and Barao, F Barbiellini, G Barbier, R Bardin, DY Barker, G and Baroncelli, A Battaglia, M Baubillier, M Becks, KH and Begalli, M Behrmann, A Beilliere, P Belokopytov, Y and Belous, K Benekos, NC Benvenuti, AC Berat, C Berggren, M and Berntzon, L Bertrand, D Besancon, M Bilenky, MS and Bizouard, MA Bloch, D Blom, HM Bonesini, M Boonekamp, M and Booth, PSL Borisov, G Bosio, C Botner, O Boudinov, E and Bouquet, B Bourdarios, C Bowcock, TJV Boyko, I and Bozovic, I Bozzo, M Bracko, M Branchini, P Brenner, RA and Bruckman, P Brunet, JM Bugge, L Buran, T Buschbeck, B Buschmann, P Cabrera, S Caccia, M Calvi, M and Camporesi, T Canale, V Carena, F Carroll, L Caso, C and Gimenez, MVC Cattai, A Cavallo, FR Chapkin, M and Charpentier, P Checchia, P Chelkov, GA Chierici, R and Chliapnikov, P Chochula, P Chorowicz, V Chudoba, J and Cieslik, K Collins, P Contri, R Cortina, E Cosme, G and Cossutti, F Costa, M Crawley, HB Crennell, D Crosetti, G and Maestro, JC Czellar, S D'Hondt, J Dalmau, J and Davenport, M Da Silva, W Della Ricca, G Delpierre, P and Demaria, N De Angelis, A De Boer, W De Clercq, C De Lotto, B De Min, A De Paula, L Dijkstra, H Di Ciaccio, L and Dolbeau, J Doroba, K Dracos, M Drees, J Dris, M and Eigen, G Ekelof, T Ellert, M Elsing, M Engel, JP and Santo, ME Fanourakis, G Fassouliotis, D Feindt, M and Fernandez, J Ferrer, A Ferrer-Ribas, E Ferro, F and Firestone, A Flagmeyer, U Foeth, H Fokitis, E and Fontanelli, F Franek, B Frodesen, AG Fruhwirth, R and Fulda-Quenzer, F Fuster, J Galloni, A Gamba, D Gamblin, S Gandelman, M Garcia, C Gaspar, C Gaspar, M and Gasparini, U Gavillet, P Gazis, EN Gele, D Geralis, T and Ghodbane, N Gil, I Glege, F Gokieli, R Golob, B and Gomez-Ceballos, G Goncalves, P Caballero, IG Gopal, G and Gorn, L Gouz, Y Gracco, V Grahl, J Graziani, E Gris, P Grosdidier, G Grzelak, K Guy, J Haag, C Hahn, F and Hahn, S Haider, S Hallgren, A Hamacher, K Hansen, J and Harris, FJ Hauler, F Hedberg, V Heising, S and Hernandez, JJ Herquet, P Herr, H Higon, E Holmgren, SO and Holt, PJ Hoorelbeke, S Houlden, M Hrubec, J Huber, M and Hughes, GJ Hultqvist, K Jackson, JN Jacobsson, R and Jalocha, P Janik, R Jarlskog, C Jarlskog, G Jarry, P and Jean-Marie, B Jeans, D Johansson, EK Jonsson, P Joram, C and Juillot, P Jungermann, L Kapusta, F Karafasoulis, K and Katsanevas, S Katsoufis, EC Keranen, R Kernel, G and Kersevan, BP Khokhlov, Y Khomenko, BA Khovanski, NN and Kiiskinen, A King, B Kinvig, A Kjaer, NJ Klapp, O and Kluit, P Kokkinias, P Kostioukhine, V Kourkoumelis, C and Kouznetsov, O Krammer, M Kriznic, E Krumstein, Z and Kubinec, P Kurowska, J Kurvinen, K Lamsa, JW Lane, DW and Lapin, V Laugier, JP Lauhakangas, R Leder, G and Ledroit, F Leinonen, L Leisos, A Leitner, R Lemonne, J and Lenzen, G Lepeltier, V Lesiak, T Lethuillier, R and Libby, J Liebig, W Liko, D Lipniacka, A Lippi, I and Loerstad, B Loken, JG Lopes, JH Lopez, JM and Lopez-Fernandez, R Loukas, D Lutz, P Lyons, L and MacNaughton, J Mahon, JR Maio, A Malek, A Maltezos, S and Malychev, V Mandl, F Marco, J Marco, R Marechal, B and Margoni, M Marin, JC Mariotti, C Markou, A and Martinez-Rivero, C Garcia, SMI Masik, J Mastroyiannopoulos, N Matorras, F Matteuzzi, C Matthiae, G Mazzucato, F and Mazzucato, M Mc Cubbin, M Mc Kay, R Mc Nulty, R Mc Pherson, G Merle, E Meroni, C Meyer, WT Miagkov, A and Migliore, E Mirabito, L Mitaroff, WA Mjoernmark, U Moa, T Moch, M Moeller, R Moenig, K Monge, MR Moraes, D and Morettini, P Morton, G Mueller, U Muenich, K and Mulders, M Mulet-Marquis, C Mundim, LM Muresan, R and Murray, WJ Muryn, B Myatt, G Myklebust, T Naraghi, F and Nassiakou, M Navarria, FL Nawrocki, K Negri, P Neufeld, N Nicolaidou, R Nielsen, BS Niezurawski, P Nikolenko, M and Nomokonov, V Nygren, A Obraztsov, V Olshevski, AG and Onofre, A Orava, R Orazi, G Osterberg, K Ouraou, A and Oyanguren, A Paganoni, M Paiano, S Pain, R Paiva, R and Palacios, J Palka, H Papadopoulou, TD Pape, L Parkes, C and Parodi, F Parzefall, U Passeri, A Passon, O Pavel, T and Pegoraro, M Peralta, L Pernicka, M Perrotta, A and Petridou, C Petrolini, A Phillips, HT Pierre, F Pimenta, M Piotto, E Podobnik, T Poireau, V Pol, ME Polok, G and Poropat, P Pozdniakov, V Privitera, P Pukhaeva, N and Pullia, A Radojicic, D Ragazzi, S Rahmani, H Rames, J and Ratoff, PN Read, AL Rebecchi, P Redaelli, NG Regler, M Rehn, J Reid, D Reinertsen, P Reinhardt, R Renton, PB Resvanis, LK Richard, F Ridky, J Rinaudo, G and Ripp-Baudot, I Romero, A Ronchese, P Rosenberg, EI and Rosinsky, P Roudeau, P Rovelli, T Ruhlmann-Kleider, V and Ruiz, A Saarikko, H Sacquin, Y Sadovsky, A Sajot, G and Salt, J Sampsonidis, D Sannino, M Savoy-Navarro, A and Schwemling, P Schwering, B Schwickerath, U Scuri, F and Seager, P Sedykh, Y Segar, AM Seibert, N Sekulin, R and Sette, G Shellard, RC Siebel, M Simard, L Simonetto, F and Sisakian, AN Smadja, G Smirnova, O Smith, GR and Sopczak, A Sosnowski, R Spassov, T Spiriti, E Squarcia, S Stanescu, C Stanitzki, M Stevenson, K Stocchi, A and Strauss, J Strub, R Stugu, B Szczekowski, M Szeptycka, M and Tabarelli, T Taffard, A Tckikilev, O Tegenfeldt, F and Terranova, F Timmermans, J Tinti, N Tkatchev, LG Tobin, M Todorova, S Tome, B Tonazzo, A Tortora, L Tortosa, P Transtromer, G Treille, D Tristram, G Trochimczuk, M and Troncon, C Turluer, ML Tyapkin, IA Tyapkin, P and Tzamarias, S Ullaland, O Uvarov, V Valenti, G Vallazza, E Van Dam, P Van den Boeck, W Van Doninck, WK Van Eldik, J Van Lysebetten, A van Remortel, N Van Vulpen, I Vegni, G Ventura, L Venus, W Verbeure, F Verdier, P and Verlato, M Vertogradov, LS Verzi, V Vilanova, D Vitale, L Vlasov, E Vodopyanov, AS Voulgaris, G Vrba, V and Wahlen, H Washbrook, AJ Weiser, C Wicke, D Wickens, JH and Wilkinson, GR Winter, M Witek, M Wolf, G Yi, J and Yushchenko, O Zalewska, A Zalewski, P Zavrtanik, D and Zevgolatakos, E Zimin, NI Zintchenko, A Zoller, P and Zumerle, G Zupan, M DELPHI Collaboration
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract: An analysis of the data collected in 1997 and 1998 with the DELPHI detector at e(+)e(-) collision energies close to 183 and 189 GeV was performed in order to extract the hadronic and leptonic fermion-pair cross-sections, as well as the leptonic forward-backward asymmetries and angular distributions. The data are used to put limit on contact interactions between fermions, the exchange of R-parity violating SUSY sneutrinos, Z’ bosons and the existence of gravity in extra dimensions. (C) 2000 Published by Elsevier Science B.V.
Published: 2000

37. Two-dimensional analysis of the Bose-Einstein correlations in $e^+ e^-$ annihilation at the Z$^0$ peak

Author: Abreau, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, Alekseev, GD, Alemany, R, Allmendinger, T, Allport, PP, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anassontzis, EG, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, WD, Arnoud, Y, Asman, B, Augustin, JE, Augustinus, A, Baillon, P, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, DY, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, KH, Begalli, M, Behrmann, A, Beilliere, P, Belokopytov, Y, Belous, K, Benekos, NC, Benvenuti, AC, Berat, C, Berggren, M, Bertrand, D, Besancon, M, Bigi, M, Bilenky, MS, Bizouard, MA, Bloch, D, Blom, HM, Bonesini, M, Boonekamp, M, Booth, PSL, Borgland, AW, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, TJV, Boyko, I, Bozovic, I, Bozzo, M, Bracko, M, Branchini, P, Brenner, RA, Bruckman, P, Brunet, JM, Bugge, L, Buran, T, Buschbeck, B, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, MVC, Cattai, A, Cavallo, FR, Chabaud, V, Chapkin, M, Charpentier, P, Checchia, P, Chelkov, GA, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, HB, Crennell, D, Crepe, S, Crosetti, G, Maestro, JC, Czellar, S, Davenport, M, Da Silva, W, Della Ricca, G, Delpierre, P, Demaria, N, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Min, A, De Paula, L, Dijkstra, H, Di Ciaccio, L, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Duperrin, A, Durand, JD, Eigen, G, Ekelof, T, Ekspong, G, Ellert, M, Elsing, M, Engel, JP, Santo, ME, Fanourakis, G, Fassouliotis, D, Fayot, J, Feindt, M, Ferrer, A, Ferrer-Ribas, E, Ferro, F, Fichet, S, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, AG, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gasper, M, Gasparini, U, Gavillet, P, Gazis, EN, Gele, D, Geralis, T, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez-Ceballos, G, Goncalves, P, Caballero, IG, Gopal, G, Gorn, L, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Gris, P, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, FJ, Hedberg, V, Heising, S, Hernandez, JJ, Herquet, P, Herr, H, Hessing, TL, Heuser, JM, Higon, E, Holmgren, SO, Holt, PJ, Hoorelbeke, S, Houlden, M, Hrubec, J, Huber, M, Huet, K, Hughes, GJ, Hultqvist, K, Jackson, JN, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Jeans, D, Johansson, EK, Jonsson, P, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, EC, Keranen, R, Kernel, G, Kersevan, BP, Khomenko, BA, Khovanski, NN, Kiiskinen, A, King, B, Kinvig, A, Kjaer, NJ, Klapp, O, Klein, H, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kurowska, J, Kurvinen, K, Lamsa, JW, Lane, DW, Lapin, V, Laugier, JP, Lauhakangas, R, Leder, G, Ledroit, F, Lefebure, V, Leinonen, L, Leisos, A, Leitner, R, Lemonne, J, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Loerstad, B, Loken, JG, Lopes, JH, Lopez, JM, Lopez-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J, Mahon, JR, Maio, A, Malek, A, Malmgren, TGM, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, JC, Mariotti, C, Markou, A, Martinez-Rivero, C, Martinez-Vidal, F, Garcia, SMI, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, McCubbin, M, McKay, R, McNulty, R, McPherson, G, Meroni, C, Meyer, WT, Migliore, E, Mirabito, L, Mitaroff, WA, Mjoernmark, U, Moa, T, Moch, M, Moeller, R, Moenig, K, Monge, MR, Moraes, D, Moreau, X, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mulet-Marquis, C, Muresan, R, Murray, WJ, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Nassiakou, M, Navarria, FL, Navas, S, Nawrocki, K, Negri, P, Neufeld, N, Nicolaidou, R, Nielsen, BS, Niezurawski, P, Nikolenko, M, Nomokonov, V, Nygren, A, Obraztsov, V, Olshevski, AG, Onofre, A, Orava, R, Orazi, G, Osterberg, K, Ouraou, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, TD, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pavel, T, Pegoraro, M, Peralta, L, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, HT, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Pol, ME, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, PN, Read, AL, Rebecchi, P, Redaelli, NG, Regler, M, Rehn, J, Reid, D, Reinhardt, R, Renton, PB, Resvanis, LK, Richard, F, Ridky, J, Rinaudo, G, Ripp-Baudot, I, Rohne, O, Romero, A, Ronchese, P, Rosenberg, EI, Rosinsky, P, Roudeau, P, Rovelli, T, Royon, C, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Y, Sadovsky, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Seager, P, Sedykh, Y, Segar, AM, Seibert, N, Sekulin, R, Shellard, RC, Siebel, M, Simard, L, Simonetto, F, Sisakian, AN, Smadja, G, Smirnova, O, Smith, GR, Sokolov, A, Solovianov, O, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Squarcia, S, Stanescu, C, Stanic, S, Stanitzki, M, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Taffard, A, Tegenfeldt, F, Terranova, F, Thomas, J, Timmermans, J, Tinti, N, Tkatchev, LG, Tobin, M, Todorova, S, Tomaradze, A, Tome, B, Tonazzo, A, Tortora, L, Tortosa, P, Transtromer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, ML, Tyapkin, IA, Tyapkin, P, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Vander Velde, C, Van Dam, P, Van den Boeck, W, Van Doninck, WK, Van Eldik, J, Van Lysebetten, A, van Remortel, N, Van Vulpen, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verdier, P, Verlato, M, Vertogradov, LS, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, AS, Voulgaris, G, Vrba, V, Wahlen, H, Walck, C, Washbrook, AJ, Weiser, C, Wicke, D, Wickens, JH, Wilkinson, GR, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zaitsev, A, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, NI, Zintchenko, A, Zoller, P, Zucchelli, GC, Zumerle, G, Collaboration, DELPHI, 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), 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), 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, Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Poropat, Paolo, Vitale, Lorenzo, 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), UCL - SST/IRMP - Institut de recherche en mathématique et physique, 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: Nuclear and High Energy Physics, Particle physics, E+E ANNIHILATION, Electron–positron annihilation, 01 natural sciences, String (physics), DECAYS, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, DELPHI, Boson, Physics, Annihilation, 010308 nuclear & particles physics, LEP, Bose–Einstein correlations, LARGE ELECTRON POSITRON COLLIDER, Transverse plane, Correlation function (statistical mechanics), PARTICLE PHYSICS, Large Electron–Positron Collider, Computer Science::Mathematical Software, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: The study of the directional dependence of two-particle correlations in the hadronic decays of the Z(0) boson is performed using the data collected by the DELPHI experiment in the 1992-1995 running periods. The comparison between the transverse, R-perpendicular to, and longitudinal, R-parallel to, correlation radii confirms the string model prediction that the transverse correlation length is smaller than the longitudinal one, with the measured values of R-perpendicular to = 0.53 +/- 0.08 fm and R-parallel to = 0.85 +/- 0.08 fm, for selected Z(0) --> q (q) over bar events. (C) 2000 Published by Elsevier Science B.V. All rights reserved.
Published: 2000
Full Text: View/download PDF

38. Measurement of A(FB)(b(b)over-bar) in hadronic Z decays using a jet charge technique

Author: Abreu, P Adam, W Adye, T Adzic, P Albrecht, Z and Aldeweireld, T Alekseev, GD Alemany, R Allmendinger, T and Allport, PP Almehed, S Amaldi, U Amato, S Anassontzis, EG Andersson, P Andreazza, A Andringa, S Antilogus, P and Apel, WD Arnoud, Y Asman, B Augustin, JE Augustinus, A Baillon, P Bambade, P Barao, F Barbiellini, G and Barbier, R Bardin, DY Barker, G Baroncelli, A Battaglia, M Baubillier, M Becks, KH Begalli, M Beilliere, P and Belokopytov, Y Belous, K Benvenuti, AC Berat, C and Berggren, M Bertini, D Bertrand, D Besancon, M Bianchi, F Bigi, M Bilenky, MS Bizouard, MA Bloch, D Blom, HM and Bonesini, M Bonivento, W Boonekamp, M Booth, PSL and Borgland, AW Borisov, G Bosio, C Botner, O Boudinov, E and Bouquet, B Bourdarios, C Bowcock, TJV Boyko, I and Bozovic, I Bozzo, M Branchini, P Brenke, T Brenner, RA and Bruckman, P Brunet, JM Bugge, L Buran, T and Burgsmueller, T Buschmann, P Cabrera, S Caccia, M Calvi, M Rozas, AJC Camporesi, T Canale, V Carena, F and Carroll, L Caso, C Gimenez, MVC Cattai, A Cavallo, FR and Chabaud, V Chapkin, M Charpentier, P Chaussard, L and Checchia, P Chelkov, GA Chierici, R Chliapnikov, P and Chochula, P Chorowicz, V Chudoba, J Collins, P Contri, R and Cortina, E Cosme, G Cossutti, F Cowell, JH Crawley, HB Crennell, D Crosetti, G Maestro, JC Czellar, S and Damgaard, G 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 Lotto, B De Min, A and De Paula, L Dijkstra, H Di Ciaccio, L Dolbeau, J and Doroba, K Dracos, M Drees, J Dris, M Duperrin, A and Durand, JD Eigen, G Ekelof, T Ekspong, G Ellert, M and Elsing, M Engel, JP Erzen, B Santo, ME Falk, E and Fanourakis, G Fassouliotis, D Fayot, J Feindt, M Fenyuk, A Ferrari, P Ferrer, A Ferrer-Ribas, E Fichet, S and Firestone, A Fischer, PA Flagmeyer, U Foeth, H Fokitis, E Fontanelli, F Franek, B Frodesen, AG Fruhwirth, R and Fulda-Quenzer, F Fuster, J Galloni, A Gamba, D Gamblin, S Gandelman, M Garcia, C Garcia, J Gaspar, C Gaspar, M Gasparini, U Gavillet, P Gazis, EN Gele, D and Ghodbane, N Gil, I Glege, F Gokieli, R Golob, B and Gomez-Ceballos, G Goncalves, P Caballero, IG Gopal, G and Gorn, L Gorski, M Gouz, Y Gracco, V Grahl, J and Graziani, E Green, C Grimm, HJ Gris, P Grosdidier, G and Grzelak, K Gunther, M Guy, J Hahn, F Hahn, S Haider, S Hallgren, A Hamacher, K Harris, FJ Hedberg, V and Heising, S Hernandez, JJ Herquet, P Herr, H Hessing, TL and Heuser, JM Higon, E Holmgren, SO Holt, PJ and Holthuizen, D Hoorelbeke, S Houlden, M Hrubec, J Huet, K and Hughes, GJ Hultqvist, K Jackson, JN Jacobsson, R and Jalocha, P Janik, R Jarlskog, C Jarlskog, G Jarry, P and Jean-Marie, B Johansson, EK Jonsson, P Joram, C Juillot, P Kapusta, F Karafasoulis, K Katsanevas, S Katsoufis, EC and Keranen, R Kersevan, BP Khomenko, BA Khovanski, NN and Kiiskinen, A King, B Kinvig, A Kjaer, NJ Klapp, O and Klein, H Kluit, P Kokkinias, P Koratzinos, M and Kostioukhine, V Kourkoumelis, C Kauznetsov, O Krammer, M and Kreuter, C Kriznic, E Krstic, J Krumstein, Z Kubinec, P and Kucewicz, W Kurowska, J Kurvinen, K Lamsa, JW Lane, DW Langefeld, P Lapin, V Laugier, JP Lauhakangas, R and Leder, G Ledroit, F Lefebure, V Leinonen, L Leisos, A and Leitner, R Lenzen, G Lepeltier, V Lesiak, T and Lethuillier, M Libby, J Liko, D Lipniacka, A Lippi, I and Loerstad, B Loken, JG Lopes, JH Lopez, JM and Lopez-Fernandez, R Loukas, D Lutz, P Lyons, L and MacNaughton, J Mahon, JR Maio, A Malek, A Malmgren, TGM and Malychev, V Mandl, F Marco, J Marco, R Marechal, B and Margoni, M Marin, JC Mariotti, C Markou, A and Martinez-Rivero, C Martinez-Vidal, F Garcia, SMI and Mastroyiannopoulos, N Matorras, F Matteuzzi, C Matthiae, G and Mazik, J Mazzucato, F Mazzucato, M McCubbin, M and McKay, R McNulty, R McPherson, G Meroni, C Meyer, WT and Migliore, E Mirabito, L Mjoernmark, U Moa, T Moch, M and Moeller, R Moenig, K Monge, MR Moreau, X Morettini, P and Morton, G Mueller, U Muenich, K Mulders, M and Mulet-Marquis, C Muresan, R Murray, WJ Muryn, B Myatt, G and Myklebust, T Naraghi, F Navarria, FL Navas, S and Nawrocki, K Negri, P Nemecek, S Neufeld, N Neumeister, N and Nicolaidou, R Nielsen, BS Nikolenko, M Nomokonov, V and Normand, A Nygren, A Obraztsov, V Olshevski, AG Onofre, A Orava, R Orazi, G Osterberg, K Ouraou, A Paganoni, M Paiano, S Pain, R Paiva, R Palacios, J Palka, H and Papadopoulou, TD Papageorgiou, K Pape, L Parkes, C and Parodi, F Parzefall, U Passeri, A Passon, O Pegoraro, M and Peralta, L Pernicka, M Perrotta, A Petridou, C and Petrolini, A Phillips, HT Pierre, F Pimenta, M Piotto, E and Podobnik, T Pol, ME Polok, G Poropat, P Pozdniakov, V Privitera, P Pukhaeva, N Pullia, A Radojicic, D and Ragazzi, S Rahmani, H Rakoczy, D Ratoff, PN Read, AL and Rebecchi, P Redaelli, NG Regler, M Reid, D Reinhardt, R and Renton, PB Resvanis, LK Richard, F Ridky, J Rinaudo, G Rohne, O Romero, A Ronchese, P Rosenberg, EI and Rosinsky, P Roudeau, P Rovelli, T Royon, C and Ruhlmann-Kleider, V Ruiz, A Saarikko, H Sacquin, Y and Sadovsky, A Sajot, G Salt, J Sampsonidis, D Sannino, M and Schneider, H Schwemling, P Schwickerath, U Schyns, MAE and Scuri, F Seager, P Sedykh, Y Segar, AM Sekulin, R and Shellard, RC Sheridan, A Siebel, M Simard, L and Simonetto, F Sisakian, AN Skaali, TB Smadja, G Smirnov, N Smirnova, O Smith, GR Sopczak, A Sosnowski, R and Spassov, T Spiriti, E Sponholz, P Squarcia, S Stampfer, D Stanescu, C Stanic, S Stapnes, S Stevenson, K and Stocchi, A Strauss, J Strub, R Stugu, B Szczekowski, M and Szeptycka, M Tabarelli, T Tegenfeldt, F Terranova, F and Thomas, J Tilquin, A Timmermans, J Tinti, N Tkatchev, LG and Todorova, S Toet, DZ Tome, B Tonazzo, A Tortora, L and Transtromer, G Treille, D Tristram, G Trochimczuk, M and Troncon, C Tsirou, A Turluer, ML Tyapkin, IA Tzamarias, S Ueberschaer, B Ullaland, O Uvarov, V Valenti, G and Vallazza, E Van Apeldoorn, GW Van Dam, P Van Eldik, J and Van Lysebetten, A Van Vulpen, I Vassilopoulos, N Vegni, G and Ventura, L Venus, W Verbeure, F Verlato, M and Vertogradov, LS Verzi, V Vilanova, D Vitale, L Vlasov, E and Vodopyanov, AS Vollmer, C Voulgaris, G Vrba, V and Wahlen, H Walck, C Weiser, C Wicke, D Wickens, JH and Wilkinson, GR Winter, M Witek, M Wolf, G Yi, J and Yushchenko, O Zaitsev, A Zalewska, A Zalewski, P and Zavrtanik, D Zevgolatakos, E Zimin, NI Zucchelli, GC and Zumerle, G DELPHI Collaboration
Abstract: The bb forward-backward asymmetry has been determined from the average charge how measured in a sample of 3,500,000 hadronic Z decays collected with the DELPHI detector in 1992 - 1995. The measurement is performed in an enriched b (b) over bar sample selected using an impact parameter tag and results in the following values for the bl; forward-backward asymmetry: A(FB)(b (b) over bar) (89.55 GeV) = 0.068 +/- 0.016 (stat.) +/- 0.0013(syst.) A(FB)(b (b) over bar)(91.26 GeV) = 0.0982 +/- 0.0047(stat.) +/- 0.0016(syst.) A(FB)(b (b) over bar)(92.94 GeV) = 0.123 +/- 0.016 (stat.) +/- 0.0027(syst.) The b (b) over bar charge separation required for this analysis is directly measured in the b tagged sample, while the other charge separations are obtained from a fragmentation model precisely calibrated to data. The effective weak mixing angle is deduced from the measurement to be: sin(2)theta(eff)1 = 0.23186 +/- 0.00063.
Published: 1999

39. Measurement of inclusive rho(0), f(0)(980), f(2)(1270), K-2(*0)(1430) and f ‘(2)(1525) production in Z(0) decays

Author: Abreu, P Adam, W Adye, T Adzic, P Ajinenko, I and Albrecht, Z Alderweireld, T Alekseev, GD Alemany, R and Allmendinger, T Allport, PP Almehed, S Amaldi, U Amato, S Anassontzis, EG Andersson, P Andreazza, A Andringa, S and Antilogus, P Apel, WD Arnoud, Y Asman, B Augustin, JE Augustinus, A Baillon, P Bambade, P Barao, F and Barbiellini, G Barbier, R Bardin, DY Barker, G and Baroncelli, A Battaglia, M Baubillier, M Becks, KH and Begalli, M Beilliere, P Belokopytov, Y Benvenuti, AC and Berat, C Berggren, M Bertini, D Bertrand, D Besancon, M and Bianchi, F Bigi, M Bilenky, MS Bizouard, MA Bloch, D and Blom, HM Bonesini, M Bonivento, W Boonekamp, M and Booth, PSL Borgland, AW Borisov, G Bosio, C Botner, O and Boudinov, E Bouquet, B Bourdarios, C Bowcock, TJV and Boyko, I Bozovic, I Bozzo, M Branchini, P Brenke, T and Brenner, RA Bruckman, P Brunet, JM Bugge, L Buran, T and Burgsmueller, T Buschmann, P Cabrera, S Caccia, M Calvi, M Camporesi, T Canale, V Carena, F Carroll, L Caso, C Gimenez, MVC Cattai, A Cavallo, FR Chabaud, V and Charpentier, P Chaussard, L Checchia, P Chelkov, GA and Chierici, R Chliapnikov, P Chochula, P Chorowicz, V and Chudoba, J Cieslik, K Collins, P Contri, R Cortina, E and Cosme, G Cossutti, F Cowell, JH Crawley, HB and Crennell, D Crepe, S Crosetti, G Maestro, JC Czellar, S and Damgaard, G Davenport, M Da Silva, W Deghorain, A and Della Ricca, G Delpierre, P Demaria, N De Angelis, A De Boer, W De Brabandere, S De Clercq, C De Lotto, B De Min, A De Paula, L Dijkstra, H Di Ciaccio, L Dolbeau, J and Doroba, K Dracos, M Drees, J Dris, M Duperrin, A and Durand, JD Eigen, G Ekelof, T Ekspong, G Ellert, M and Elsing, M Engel, JP Erzen, B Santo, ME Falk, E and Fanourakis, G Fassouliotis, D Fayot, J Feindt, M and Ferrari, P Ferrer, A Ferrer-Ribas, E Fichet, S and Firestone, A Flagmeyer, U Foeth, H Fokitis, E and Fontanelli, F Franek, B Frodesen, AG Fulda-Quenzer, F and Fuster, J Galloni, A Gamba, D Gamblin, S Gandelman, M and Garcia, C Gaspar, C Gaspar, M Gasparini, U Gavillet, P Gazis, EN Gele, D Gerdyukov, L Ghodbane, N Gil, I and Glege, F Gokieli, R Golob, B Gomez-Ceballos, G and Goncalves, P Caballero, IG Gopal, G Gorn, L Gorski, M and Gouz, Y Gracco, V Grahl, J Graziani, E Green, C and Grimm, HJ Gris, P Grosdidier, G Grzelak, K Gunther, M and Guy, J Hahn, F Hahn, S Haider, S Hallgren, A and Hamacher, K Hansen, J Harris, FJ Hedberg, V Heising, S and Hernandez, JJ Herquet, P Herr, H Hessing, TL Heuser, JM Higon, E Holmgren, SO Holt, PJ Hoorelbeke, S and Houlden, M Hrubec, J Huet, K Hughes, GJ Hultqvist, K and Jackson, JN Jacobsson, R Jalocha, P Janik, R Jarlskog, C and Jarlskog, G Jarry, P Jean-Marie, B Johansson, EK and Jonsson, P Joram, C Juillot, P Kapusta, F Karafasoulis, K Katsanevas, S Katsoufis, EC Keranen, R Kersevan, BP and Khomenko, BA Khovanski, NN Kiiskinen, A King, B and Kinvig, A Kjaer, NJ Klapp, O Klein, H Kluit, P and Kokkinias, P Koratzinos, M Kostioukhine, V Kourkoumelis, C and Kouznetsov, O Krammer, M Kriznic, E Krstic, J and Krumstein, Z Kubinec, P Kurowska, J Kurvinen, K Lamsa, JW Lane, DW Langefeld, P Lapin, V Laugier, JP and Lauhakangas, R Leder, G Ledroit, F Lefebure, V Leinonen, L Leisos, A Leitner, R Lenzen, G Lepeltier, V and Lesiak, T Lethuillier, M Libby, J Liko, D Lipniacka, A and Lippi, I Loerstad, B Loken, JG Lopes, JH Lopez, JM and Lopez-Fernandez, R Loukas, D Lutz, P Lyons, L and MacNaughton, J Mahon, JR Maio, A Malek, A Malmgren, TGM and Malychev, V Mandl, F Marco, J Marco, R Marechal, B and Margoni, M Marin, JC Mariotti, C Markou, A and Martinez-Rivero, C Martinez-Vidal, F Garcia, SMI Masik, J and Mastroyiannopoulos, N Matorras, F Matteuzzi, C Matthiae, G Mazzucato, F Mazzucato, M Mc Cubbin, M Mc Kay, R and Mc Nulty, R Mc Pherson, G Meroni, C Meyer, WT Miagkov, A and Migliore, E Mirabito, L Mitaroff, WA Mjoernmark, U and Moa, T Moch, M Moeller, R Moenig, K Monge, MR and Moreau, X Morettini, P Morton, G Mueller, U Muenich, K and Mulders, M Mulet-Marquis, C Muresan, R Murray, WJ and Muryn, B Myatt, G Myklebust, T Naraghi, F Navarria, FL and Navas, S Nawrocki, K Negri, P Neufeld, N Neumeister, N Nicolaidou, R Nielsen, BS Nikolenko, M Nomokonov, V and Normand, A Nygren, A Obraztsov, V Olshevski, AG and Onofre, A Orava, R Orazi, G Osterberg, K Ouraou, A and Paganoni, M Paiano, S Pain, R Paiva, R Palacios, J and Palka, H Padadopoulou, TD Papageorgiou, K Pape, L and Parkes, C Parodi, F Parzefall, U Passeri, A Passon, O and Pegoraro, M Peralta, L Pernicka, M Perrotta, A and Petridou, C Petrolini, A Phillips, HT Pierre, F Pimenta, M Piotto, E Podobnik, T Pol, ME Polok, G Poropat, P and Pozdniakov, V Privitera, P Pukhaeva, N Pullia, A and Radojicic, D Ragazzi, S Rahmani, H Rakoczy, D Ratoff, PN and Read, AL Rebecchi, P Redaelli, NG Regler, M Reid, D and Reinhardt, R Renton, PB Resvanis, LK Richard, F and Ridky, J Rinaudo, G Rohne, O Romero, A Ronchese, P and Rosenberg, EI Rosinsky, P Roudeau, P Rovelli, T Royon, C and Ruhlmann-Kleider, V Ruiz, A Saarikko, H Sacquin, Y and Sadovsky, A Sajot, G Salt, J Sampsonidis, D Sannino, M and Schneider, H Schwemling, P Schwickerath, U Schyns, MAE and Scuri, F Seager, P Sedykh, Y Segar, AM Sekulin, R and Shellard, RC Sheridan, A Siebel, M Simard, L and Simonetto, F Sisakian, AN Smadja, G Smirnova, O Smith, GR Sokolov, A Sopczak, A Sosnowski, R Spassov, T and Spiriti, E Sponholz, P Squarcia, S Stampfer, D Stanescu, C Stanic, S Stevenson, K Stocchi, A Strauss, J and Strub, R Stugu, B Szczekowski, M Szeptycka, M Tabarelli, T Tchikilev, O Tegenfeldt, F Terranova, F Thomas, J and Timmermans, J Tinti, N Tkatchev, LG Todorova, S and Tomaradze, A Tome, B Tonazzo, A Tortora, L Transtromer, G Treille, D Tistram, G Trochimczuk, M Troncon, C and Tsirou, A Turluer, ML Tyapkin, IA Tzamarias, S and Ueberschaer, B Ullaland, O Uvarov, V Valenti, G and Vallazza, E Van Apeldoorn, GW Van Dam, P Van Doninck, WK and Van Eldik, J Van Lysebetten, A Van Vulpen, I Vassilopoulos, N Vegni, G Ventura, L Venus, W Verbeure, F Verlato, M Vertogradov, LS Verzi, V Vilanova, D Vitale, L and Vlasov, E Vodopyanov, AS Vollmer, C Voulgaris, G Vrba, V and Wahlen, H Walck, C Weiser, C Wicke, D Wickens, JH and Wilkinson, GR Winter, M Witek, M Wolf, G Yi, J and Yushchenko, O Zalewska, A Zalewski, P Zavrtanik, D and Zevgolatakos, E Zimin, NI Zucchelli, GC Zumerle, G and DELPHI Collaboration
Abstract: DELPHI results are presented on the inclusive production of the neutral mesons rho(0), f(0)(980), f(2)(1270), K-2(*0)(1430) and f’(2)(1525) in hadronic Z(0) decays. They are based on about 2 million multihadronic events collected in 1994 and 1995, using the particle identification capabilities of the DELPHI Ring Imaging Cherenkov detectors and measured ionization losses in the Time Projection Chamber. The total production rates per hadronic Z(0) decay have been determined to be: 1.19 +/- 0.10 for rho(0); 0.164 +/- 0.021 for f(0)(980); 0.214 +/- 0.038 for f(2)(1270); 0.073 +/- 0.023 for K-2(*0)(1430); and 0.012 +/- 0.006 fur f’(2)(1525). The total production rates for all mesons and differential cross-sections for the rho(0), f(0)(980) and f(2)(1270) are compared with the results of other LEP experiments and with models, (C) 1999 Elsevier Science B.V, All rights reserved.
Published: 1999

40. Measurement of the rate of b(b)over-bar-b(b)over-bar events in hadronic Z decays and the extraction of the gluon splitting into b(b)over-bar

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, Alderweireld, T, Alekseev, GD, Alemany, R, Allmendinger, T, Allport, PP, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anassontzis, EG, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, WD, Arnoud, Y, Asman, B, Augustin, JE, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, DY, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, KH, Begalli, M, Behrmann, A, Beilliere, P, Belokopytov, Y, Benekos, NC, Benvenuti, AC, Berat, C, Berggren, M, Bertini, D, Bertrand, D, Besancon, M, Bigi, M, Bilensky, MS, Bizouard, MA, Bloch, D, Blom, HM, Bonesini, M, Bonivento, W, Boonekamp, M, Booth, PSL, Borgland, AW, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, TJV, Boyko, I, Bozovic, I, Bozzo, M, Branchini, P, Brenke, T, Brenner, RA, Bruckman, P, Brunet, JM, Bugge, L, Buran, T, Burgsmueller, T, Buschbeck, B, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, MVC, Cattai, A, Cavallo, FR, Chabaud, V, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, GA, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, JH, Crawley, HB, Crennell, D, Crepe, S, Crosetti, G, Maestro, JC, Czellar, S, Davenport, M, Da Silva, W, Deghorain, A, Della Ricca, G, Delpierre, P, Demaria, N, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Min, A, De Paula, L, Dijkstra, H, Di Ciaccio, L, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Duperrin, A, Durand, JD, Eigen, G, Ekelof, T, Ekspong, G, Ellert, M, Elsing, M, Engel, JP, Erzen, B, Santo, ME, Fanourakis, G, Fassouliotis, D, Fayot, J, Feindt, M, Ferrari, P, Ferrer, A, Ferrer-Ribas, E, Ferro, F, Fichet, S, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, AG, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, EN, Gele, D, Gerdyukov, L, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez-Ceballos, G, Goncalves, P, Caballero, IG, Gopal, G, Gorn, L, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Green, C, Grimm, HJ, Gris, P, Grosdidier, G, Grzelak, K, Gunther, M, Guy, J, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, FJ, Hedberg, V, Heising, S, Hernandez, JJ, Herquet, P, Herr, H, Hessing, TL, Heuser, JM, Higon, E, Holmgren, SO, Holt, PJ, Hoorelbeke, S, Houlden, M, Hrubec, J, Huet, K, Hughes, GJ, Hultqvist, K, Jackson, JN, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, EK, Jonsson, P, Joram, C, Juillot, P, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, EC, Keranen, R, Kersevan, BP, Khomenko, BA, Khovanski, NN, Kiiskinen, A, King, B, Kinvig, A, Kjaer, NJ, Klapp, O, Klein, H, Kluit, P, Kokkinias, P, Koratzinos, M, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krstic, J, Krumstein, Z, Kubinec, P, Kurowska, J, Kurvinen, K, Lamsa, JW, Lane, DW, Langefeld, P, Lapin, V, Laugier, JP, Lauhakangas, R, Leder, G, 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, JG, Lopes, JH, Lopez, JM, Lopez-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J, Mahon, JR, Maio, A, Malek, A, Malmgren, TGM, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, JC, Mariotti, C, Markou, A, Martinez-Rivero, C, Martinez-Vidal, F, Garcia, SMI, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, McCubbin, M, McKay, R, McNulty, R, McPherson, G, Meroni, C, Meyer, WT, Miagkov, A, Migliore, E, Mirabito, L, Mitaroff, WA, Mjoernmark, U, Moa, T, Moch, M, Moeller, R, Moenig, K, Monge, MR, Moreau, X, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mulet-Marquis, C, Muresan, R, Murray, WJ, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Nassiakou, M, Navarria, FL, Navas, S, Nawrocki, K, Negri, P, Nemecek, S, Neufeld, N, Nicolaidou, R, Nielsen, BS, Niezurawski, P, Nikolenko, M, Nomokonov, V, Normand, A, Nygren, A, Obraztsov, V, Olshevski, AG, Onofre, A, Orava, R, Orazi, G, Osterberg, K, Ouraou, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, TD, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pegoraro, M, Peralta, L, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, HT, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Pol, ME, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Ratoff, PN, Read, AL, Rebecchi, P, Redaelli, NG, Regler, M, Reid, D, Reinhardt, R, Renton, PB, Resvanis, LK, Richard, F, Ridky, J, Rinaudo, G, Rohne, O, Romero, A, Ronchese, P, Rosenberg, EI, Rosinsky, P, Roudeau, P, Rovelli, T, Royon, C, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Y, Sadovsky, A, Sajot, G, Salt, J, Sampsonidis, D, Sannino, M, Schneider, H, Schwemling, P, Schwering, B, Schwickerath, U, Schyns, MAE, Scuri, F, Seager, P, Sedykh, Y, Segar, AM, Sekulin, R, Shellard, RC, Sheridan, A, Siebel, M, Simard, L, Simonetto, F, Sisakian, AN, Smadja, G, Smirnov, N, Smirnova, O, Smith, GR, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stanic, S, Stevenson, K, Stocchi, A, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Tchikilev, O, Tegenfeldt, F, Terranova, F, Thomas, J, Timmermans, J, Tinti, N, Tkatchev, LG, Todorova, S, Tomaradze, A, Tome, B, Tonazzo, A, Tortora, L, Transtromer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Tsirou, A, Turluer, ML, Tyapkin, IA, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Vander Velde, C, Van Apeldoorn, GW, Van Dam, P, Van Doninck, WK, Van Eldik, J, Van Lysebetten, A, Van Remortel, N, Van Vulpen, I, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verlato, M, Vertogradov, LS, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, AS, Vollmer, C, Voulgaris, G, Vrba, V, Wahlen, H, Walck, C, Weiser, C, Wicke, D, Wickens, JH, Wilkinson, GR, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, NI, Zucchelli, GC, Zumerle, G, and Collaboration, DELPHI
Subjects: LUND MONTE-CARLO, MICROVERTEX DETECTOR, JET FRAGMENTATION, DELPHI DETECTOR, E+E-PHYSICS
Abstract: The rate Z → bb̄bb̄ was measured using about 2×106 hadronic decays collected by the DELPHI experiment in 1994 and 1995. Events were forced into 3-jets with ymin > 0.06 and a b-tag was required for every jet. The rate was measured to be: R4b = BR(Z → bb̄bb̄)/BR(Z → hadrons), = (6.0 ± 1.9(stst.)) ± 1.4(Syst.)) × 10-4 where the invariant mass of every bb̄ system is above twice the b quark mass. Using the value of R4b the probability of secondary production of a bb̄ pair from a gluon per hadronic Z decay, gbb, was extracted and found to be: gbb = (3.3 ± 1.0(stat) ± 0.8(syst.)) × 10-3. © 1999 Published by Elsevier Science B.V. All rights reserved.
Published: 1999

41. Measurement of the rate of b(b)over-bar-b(b)over-bar events in hadronic Z decays and the extraction of the gluon splitting into b(b)over-bar

Author: Abreu, P Adam, W Adye, T Adzic, P Ajinenko, I and Albrecht, Z Alderweireld, T Alekseev, GD Alemany, R and Allmendinger, T Allport, PP Almehed, S Amaldi, U and Amapane, N Amato, S Anassontzis, EG Andersson, P and Andreazza, A Andringa, S Antilogus, P Apel, WD Arnoud, Y and Asman, B Augustin, JE Augustinus, A Baillon, P and Ballestrero, A Bambade, P Barao, F Barbiellini, G and Barbier, R Bardin, DY Barker, G Baroncelli, A Battaglia, M Baubillier, M Becks, KH Begalli, M Behrmann, A and Beilliere, P Belokopytov, Y Benekos, NC Benvenuti, AC and Berat, C Berggren, M Bertini, D Bertrand, D Besancon, M and Bigi, M Bilensky, MS Bizouard, MA Bloch, D Blom, HM and Bonesini, M Bonivento, W Boonekamp, M Booth, PSL and Borgland, AW Borisov, G Bosio, C Botner, O Boudinov, E and Bouquet, B Bourdarios, C Bowcock, TJV Boyko, I and Bozovic, I Bozzo, M Branchini, P Brenke, T Brenner, RA and Bruckman, P Brunet, JM Bugge, L Buran, T and Burgsmueller, T Buschbeck, B Buschmann, P Cabrera, S and Caccia, M Calvi, M Camporesi, T Canale, V Carena, F and Carroll, L Caso, C Gimenez, MVC Cattai, A Cavallo, FR and Chabaud, V Charpentier, P Chaussard, L Checchia, P and Chelkov, GA Chierici, R Chliapnikov, P Chochula, P and Chorowicz, V Chudoba, J Cieslik, K Collins, P Contri, R and Cortina, E Cosme, G Cossutti, F Cowell, JH Crawley, HB Crennell, D Crepe, S Crosetti, G Maestro, JC and Czellar, S Davenport, M Da Silva, W Deghorain, A Della Ricca, G Delpierre, P Demaria, N De Angelis, A De Boer, W De Clercq, C De Lotto, B De Min, A De Paula, L and Dijkstra, H Di Ciaccio, L Dolbeau, J Doroba, K Dracos, M and Drees, J Dris, M Duperrin, A Durand, JD Eigen, G and Ekelof, T Ekspong, G Ellert, M Elsing, M Engel, JP and Erzen, B Santo, ME Fanourakis, G Fassouliotis, D Fayot, J Feindt, M Ferrari, P Ferrer, A Ferrer-Ribas, E and Ferro, F Fichet, S Firestone, A Flagmeyer, U Foeth, H and Fokitis, E Fontanelli, F Franek, B Frodesen, AG and Fruhwirth, R Fulda-Quenzer, F Fuster, J Galloni, A and Gamba, D Gamblin, S Gandelman, M Garcia, C Gaspar, C and Gaspar, M Gasparini, U Gavillet, P Gazis, EN Gele, D and Gerdyukov, L Ghodbane, N Gil, I Glege, F Gokieli, R and Golob, B Gomez-Ceballos, G Goncalves, P Caballero, IG and Gopal, G Gorn, L Gouz, Y Gracco, V Grahl, J and Graziani, E Green, C Grimm, HJ Gris, P Grosdidier, G and Grzelak, K Gunther, M Guy, J Hahn, F Hahn, S Haider, S Hallgren, A Hamacher, K Hansen, J Harris, FJ and Hedberg, V Heising, S Hernandez, JJ Herquet, P Herr, H and Hessing, TL Heuser, JM Higon, E Holmgren, SO Holt, PJ Hoorelbeke, S Houlden, M Hrubec, J Huet, K and Hughes, GJ Hultqvist, K Jackson, JN Jacobsson, R and Jalocha, P Janik, R Jarlskog, C Jarlskog, G Jarry, P and Jean-Marie, B Johansson, EK Jonsson, P Joram, C Juillot, P Kapusta, F Karafasoulis, K Katsanevas, S Katsoufis, EC and Keranen, R Kersevan, BP Khomenko, BA Khovanski, NN and Kiiskinen, A King, B Kinvig, A Kjaer, NJ Klapp, O and Klein, H Kluit, P Kokkinias, P Koratzinos, M and Kostioukhine, V Kourkoumelis, C Kouznetsov, O Krammer, M and Kriznic, E Krstic, J Krumstein, Z Kubinec, P Kurowska, J and Kurvinen, K Lamsa, JW Lane, DW Langefeld, P Lapin, V and Laugier, JP Lauhakangas, R Leder, G Ledroit, F and Lefebure, V Leinonen, L Leisos, A Leitner, R Lemonne, J and Lenzen, G Lepeltier, V Lesiak, T Lethuillier, M and Libby, J Liko, D Lipniacka, A Lippi, I Loerstad, B and Loken, JG Lopes, JH Lopez, JM Lopez-Fernandez, R Loukas, D Lutz, P Lyons, L MacNaughton, J Mahon, JR Maio, A and Malek, A Malmgren, TGM Maltezos, S Malychev, V and Mandl, F Marco, J Marco, R Marechal, B Margoni, M and Marin, JC Mariotti, C Markou, A Martinez-Rivero, C and Martinez-Vidal, F Garcia, SMI Masik, J Mastroyiannopoulos, N and Matorras, F Matteuzzi, C Matthiae, G Mazzucato, F and Mazzucato, M McCubbin, M McKay, R McNulty, R McPherson, G Meroni, C Meyer, WT Miagkov, A Migliore, E and Mirabito, L Mitaroff, WA Mjoernmark, U Moa, T Moch, M and Moeller, R Moenig, K Monge, MR Moreau, X Morettini, P Morton, G Mueller, U Muenich, K Mulders, M and Mulet-Marquis, C Muresan, R Murray, WJ Muryn, B Myatt, G and Myklebust, T Naraghi, F Nassiakou, M Navarria, FL and Navas, S Nawrocki, K Negri, P Nemecek, S Neufeld, N and Nicolaidou, R Nielsen, BS Niezurawski, P Nikolenko, M and Nomokonov, V Normand, A Nygren, A Obraztsov, V and Olshevski, AG Onofre, A Orava, R Orazi, G Osterberg, K and Ouraou, A Paganoni, M Paiano, S Pain, R Paiva, R and Palacios, J Palka, H Papadopoulou, TD Papageorgiou, K and Pape, L Parkes, C Parodi, F Parzefall, U Passeri, A and Passon, O Pegoraro, M Peralta, L Pernicka, M Perrotta, A and Petridou, C Petrolini, A Phillips, HT Pierre, F and Pimenta, M Piotto, E Podobnik, T Pol, ME Polok, G and Poropat, P Pozdniakov, V Privitera, P Pukhaeva, N and Pullia, A Radojicic, D Ragazzi, S Rahmani, H Ratoff, PN and Read, AL Rebecchi, P Redaelli, NG Regler, M Reid, D and Reinhardt, R Renton, PB Resvanis, LK Richard, F and Ridky, J Rinaudo, G Rohne, O Romero, A Ronchese, P and Rosenberg, EI Rosinsky, P Roudeau, P Rovelli, T Royon, C and Ruhlmann-Kleider, V Ruiz, A Saarikko, H Sacquin, Y and Sadovsky, A Sajot, G Salt, J Sampsonidis, D Sannino, M and Schneider, H Schwemling, P Schwering, B Schwickerath, U and Schyns, MAE Scuri, F Seager, P Sedykh, Y Segar, AM and Sekulin, R Shellard, RC Sheridan, A Siebel, M and Simard, L Simonetto, F Sisakian, AN Smadja, G Smirnov, N and Smirnova, O Smith, GR Sopczak, A Sosnowski, R and Spassov, T Spiriti, E Sponholz, P Squarcia, S Stanescu, C Stanic, S Stevenson, K Stocchi, A Strub, R Stugu, B Szczekowski, M Szeptycka, M Tabarelli, T Tchikilev, O and Tegenfeldt, F Terranova, F Thomas, J Timmermans, J and Tinti, N Tkatchev, LG Todorova, S Tomaradze, A Tome, B and Tonazzo, A Tortora, L Transtromer, G Treille, D and Tristram, G Trochimczuk, M Troncon, C Tsirou, A Turluer, ML Tyapkin, IA Tzamarias, S Ullaland, O Uvarov, V and Valenti, G Vallazza, E Vander Velde, C Van Apeldoorn, GW and Van Dam, P Van Doninck, WK Van Eldik, J Van Lysebetten, A and Van Remortel, N Van Vulpen, I Vassilopoulos, N Vegni, G and Ventura, L Venus, W Verbeure, F Verlato, M and Vertogradov, LS Verzi, V Vilanova, D Vitale, L Vlasov, E and Vodopyanov, AS Vollmer, C Voulgaris, G Vrba, V and Wahlen, H Walck, C Weiser, C Wicke, D Wickens, JH and Wilkinson, GR Winter, M Witek, M Wolf, G Yi, J and Yushchenko, O Zalewska, A Zalewski, P Zavrtanik, D and Zevgolatakos, E Zimin, NI Zucchelli, GC Zumerle, G and DELPHI Collaboration
Abstract: The rate Z –> b (b) over bar b (b) over bar was measured using about 2 x 10(6) hadronic decays collected by the DELPHI experiment in 1994 and 1995. Events were forced into 3-jets with y(min) > 0.06 and a b-tag was required for every jet. The rate was measured to be: R-4b = BR(Z –> b (b) over bar b (b) over bar/BR(Z –> hadrons), = (6.0 +/- 1.9(stat.) +/- 1.4(syst.)) x 10(-4) where the invariant mass of every b (b) over bar system is above twice the b quark mass. Using the value of R-4b the probability of secondary production of a b (b) over bar pair from a gluon per hadronic Z decay, g(bb), was extracted and found to be: g(bb) = (3.3 +/- 1.0(stat.) +/- 0.8(syst.)) x 10(-3). (C) 1999 Published by Elsevier Science B.V. All rights reserved.
Published: 1999

42. A precise measurement of the partial decay width ratio R-b(0) = Gamma(b(b)over-bar)/Gamma(had)

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, Alekseev, GD, Alemany, R, Allmendinger, T, Allport, PP, Almehed, S, Amaldi, U, Amato, S, Anassontzis, EG, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, WD, Arnoud, Y, Asman, B, Augustin, JE, Augustinus, A, Baillon, P, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, DY, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, KH, Begalli, M, Beilliere, P, Belokopytov, Y, Belous, K, Benvenuti, AC, Berat, C, Berggren, M, Bertini, D, Bertrand, D, Besancon, M, Bianchi, F, Bigi, M, Bilenky, MS, Bizouard, MA, Bloch, D, Blom, HM, Bonesini, M, Bonivento, W, Boonekamp, M, Booth, PSL, Borgland, AW, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, TJV, Boyko, I, Bozovic, I, Bozzo, M, Branchini, P, Brenke, T, Brenner, RA, Bruckman, P, Brunet, JM, Bugge, L, Buran, T, Burgsmueller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, MVC, Cattai, A, Cavallo, FR, Chabaud, V, Chapkin, M, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, GA, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, JH, Crawley, HB, Crennell, D, Crepe, S, Crosetti, G, Maestro, JC, Czellar, S, Damgaard, G, 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 Lotto, B, De Min, A, De Paula, L, Dijkstra, H, Di Ciaccio, L, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Duperrin, A, Durand, JD, Eigen, G, Ekelof, T, Ekspong, G, Ellert, M, Elsing, M, Engel, JP, Erzen, B, Santo, ME, Falk, E, Fanourakis, G, Fassouliotis, D, Fayot, J, Feindt, M, Fenyuk, A, Ferrari, P, Ferrer, A, Ferrer-Ribas, E, Fichet, S, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, AG, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, EN, Gele, D, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez-Ceballos, G, Goncalves, P, Caballero, IG, Gopal, G, Gorn, L, Gorski, M, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Green, C, Grimm, HJ, Gris, P, Grosdidier, G, Grzelak, K, Gunther, M, Guy, J, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, FJ, Hedberg, V, Heising, S, Hernandez, JJ, Herquet, P, Herr, H, Hessing, TL, Heuser, JM, Higon, E, Holmgren, SO, Holt, PJ, Hoorelbeke, S, Houlden, M, Huet, K, Hughes, GJ, Hultqvist, K, Jackson, JN, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, EK, Jonsson, P, Joram, C, Juillot, P, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, EC, Keranen, R, Kersevan, BP, Khomenko, BA, Khovanski, NN, Kiiskinen, A, King, B, Kinvig, A, Kjaer, NJ, Klapp, O, Klein, H, Kluit, P, Kokkinias, P, Koratzinos, M, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krstic, J, Krumstein, Z, Kubinec, P, Kurowska, J, Kurvinen, K, Lamsa, JW, Lane, DW, Langefeld, P, Lapin, V, Laugier, JP, Lauhakangas, R, Leder, G, Ledroit, F, Lefebure, V, Leinonen, L, Leisos, A, Leitner, R, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liko, D, Lipniacka, A, Lippi, I, Loerstad, B, Loken, JG, Lopes, JH, Lopez, JM, Lopez-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J, Mahon, JR, Maio, A, Malek, A, Malmgren, TGM, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, JC, Mariotti, C, Markou, A, Martinez-Rivero, C, Martinez-Vidal, F, Garcia, SMI, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, Mc Cubbin, M, Mc Kay, R, Mc Nulty, R, Mc Pherson, G, Meroni, C, Meyer, WT, Migliore, E, Mirabito, L, Mitaroff, WA, Mjoernmark, U, Moa, T, Moch, M, Moeller, R, Moenig, K, Monge, MR, Moreau, X, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mulet-Marquis, C, Muresan, R, Murray, WJ, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Navarria, FL, Navas, S, Nawrocki, K, Negri, P, Neufeld, N, Neumeister, N, Nicolaidou, R, Nielsen, BS, Nikolenko, M, Nomokonov, V, Normand, A, Nygren, A, Obraztsov, V, Olshevski, AG, Onofre, A, Orava, R, Orazi, G, Osterberg, K, Ouraou, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, TD, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pegoraro, M, Peralta, L, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, HT, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Pol, ME, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Rakoczy, D, Ratoff, PN, Read, AL, Rebecchi, P, Redaelli, NG, Regler, M, Reid, D, Reinhardt, R, Renton, PB, Resvanis, LK, Richard, F, Ridky, J, Rinaudo, G, Rohne, O, Romero, A, Ronchese, P, Rosenberg, EI, Rosinsky, P, Roudeau, P, Rovelli, T, Royon, C, 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, MAE, Scuri, F, Seager, P, Sedykh, Y, Segar, AM, Sekulin, R, Shellard, RC, Sheridan, A, Siebel, M, Simard, L, Simonetto, F, Sisakian, AN, Smadja, G, Smirnov, N, Smirnova, O, Smith, GR, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Sponholz, P, Squarcia, S, Stampfer, D, Stanescu, C, Stanic, S, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Tegenfeldt, F, Terranova, F, Thomas, J, Timmermans, J, Tinti, N, Tkatchev, LG, Todorova, S, Tomaradze, A, Tome, B, Tonazzo, A, Tortora, L, Transtromer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Tsirou, A, Turluer, ML, Tyapkin, IA, Tzamarias, S, Ueberschaer, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Van Apeldoorn, GW, Van Dam, P, Van Doninck, WK, Van Eldik, J, Van Lysebetten, A, Van Vulpen, I, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verlato, M, Vertogradov, LS, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, AS, Vollmer, C, Voulgaris, G, Vrba, V, Wahlen, H, Walck, C, Weiser, C, Wicke, D, Wickens, JH, Wilkinson, GR, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zaitsev, A, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, NI, Zucchelli, GC, Zumerle, G, and Collaboration, DELPHI
Subjects: PHYSICS, MICROVERTEX DETECTOR, DELPHI DETECTOR, MASS TAG, MULTIPLICITY, PAIRS, LEP
Published: 1999

43. Measurement and Interpretation of Fermion-Pair Production at LEP energies from 130 to 172 GeV

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, Alekseev, GD, Alemany, R, Allmendinger, T, Allport, PP, Almehed, S, Amaldi, U, Amato, S, Anassontzis, EG, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, WD, Arnoud, Y, Asman, B, Augustin, JE, Augustinus, A, Baillon, P, Bambade, P, Barao, F, Barbier, R, Bardin, DY, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, KH, Begalli, M, Behrmann, A, Beilliere, P, Belokopytov, Y, Benvenuti, AC, Berat, C, Berggren, M, Bertini, D, Bertrand, D, Besancon, M, Bianchi, F, Bigi, M, Bilenky, MS, Bizouard, MA, Bloch, D, Blom, HM, Bonesini, M, Bonivento, W, Boonekamp, M, Booth, PSL, Borgland, AW, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, TJV, Boyko, I, Bozovic, I, Bozzo, M, Branchini, P, Brenke, T, Brenner, RA, Bruckman, P, Brunet, JM, Bugge, L, Buran, T, Burgsmueller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, MVC, Cattai, A, Cavallo, FR, Chabaud, V, Chalanda, N, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, GA, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, JH, Crawley, HB, Crennell, D, Crepe, S, Crosetti, G, Maestro, JC, Czellar, S, 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 Lotto, B, De Min, A, De Paula, L, Dijkstra, H, Di Ciaccio, L, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Duperrin, A, Durand, JD, Eigen, G, Ekelof, T, Ekspong, G, Ellert, M, Elsing, M, Engel, JP, Erzen, B, Santo, ME, Falk, E, Fanourakis, G, Fassouliotis, D, Fayot, J, Feindt, M, Fenyuk, A, Ferrari, P, Ferrer, A, Ferrer-Ribas, E, Fichet, S, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, AG, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, EN, Gele, D, Gerdyukov, L, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez-Ceballos, G, Goncalves, P, Caballero, IG, Gopal, G, Gorn, L, Gorski, M, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Green, C, Grimm, HJ, Gris, P, Grosdidier, G, Grzelak, K, Gunther, M, Guy, J, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, FJ, Hedberg, V, Heising, S, Hernandez, JJ, Herquet, P, Herr, H, Hessing, TL, Heuser, JM, Higon, E, Holmgren, SO, Holt, PJ, Hoorelbeke, S, Houlden, M, Hrubec, J, Huet, K, Hughes, GJ, Hultqvist, K, Jackson, JN, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, EK, Jonsson, P, Joram, C, Juillot, P, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, EC, Keranen, R, Kersevan, BP, Khomenko, BA, Khovanski, NN, Kiiskinen, A, King, B, Kinvig, A, Kjaer, NJ, Klapp, O, Klein, H, Kluit, P, Kokkinias, P, Koratzinos, M, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kurowska, J, Kurvinen, K, Lamsa, JW, Lane, DW, Langefeld, P, Lapin, V, Laugier, JP, Lauhakangas, R, Leder, G, 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, Lokajicek, M, Loken, JG, Lopes, JH, Lopez, JM, Lopez-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J, Mahon, JR, Maio, A, Malek, A, Malmgren, TGM, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, JC, Mariotti, C, Markou, A, Martinez-Rivero, C, Martinez-Vidal, F, Garcia, SMI, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, Mc Cubbin, M, Mc Kay, R, Mc Nulty, R, Mc Pherson, G, Meroni, C, Meyer, WT, Migliore, E, Mirabito, L, Mitaroff, WA, Mjoernmark, U, Moa, T, Moch, M, Moeller, R, Moenig, K, Monge, MR, Moreau, X, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mulet-Marquis, C, Muresan, R, Murray, WJ, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Navarria, FL, Navas, S, Nawrocki, K, Negri, P, Neufeld, N, Neumeister, N, Nicolaidou, R, Nielsen, BS, Nikolenko, M, Nomokonov, V, Normand, A, Nygren, A, Obraztsov, V, Olshevski, AG, Onofre, A, Orava, R, Orazi, G, Osterberg, K, Ouraou, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, TD, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pegoraro, M, Peralta, L, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, HT, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Pol, ME, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Rakoczy, D, Ratoff, PN, Read, AL, Rebecchi, P, Redaelli, NG, Regler, M, Reid, D, Reinhardt, R, Renton, PB, Resvanis, LK, Richard, F, Ridky, J, Rinaudo, G, Rohne, O, Romero, A, Ronchese, P, Rosenberg, EI, Rosinsky, P, Roudeau, P, Rovelli, T, Royon, C, 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, MAE, Scuri, F, Seager, P, Sedykh, Y, Segar, AM, Sekulin, R, Senko, V, Shellard, RC, Sheridan, A, Siebel, M, Simard, L, Simonetto, F, Sisakian, AN, Smadja, G, Smirnov, N, Smirnova, O, Smith, GR, Solovianov, O, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Sponholz, P, Squarcia, S, Stampfer, D, Stanescu, C, Stanic, S, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Tchikilev, O, Tegenfeldt, F, Terranova, F, Thomas, J, Timmermans, J, Tinti, N, Tkatchev, LG, Todorova, S, Tomaradze, A, Tome, B, Tonazzo, A, Tortora, L, Transtromer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Tsirou, A, Turluer, ML, Tyapkin, IA, Tzamarias, S, Ueberschaer, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Vander Velde, C, Van Apeldoorn, GW, Van Dam, P, Van Doninck, WK, Van Eldik, J, Van Lysebetten, A, Van Vulpen, I, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verlato, M, Vertogradov, LS, Verzi, V, Vilanova, D, Vishnevsky, N, Vitale, L, Vlasov, E, Vodopyanov, AS, Vollmer, C, Voulgaris, G, Vrba, V, Wahlen, H, Walck, C, Weiser, C, Wicke, D, Wickens, JH, Wilkinson, GR, Winter, M, Witek, M, Wolf, G, Yi, J, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, NI, Zucchelli, GC, Zumerle, G, Collaboration, DELPHI, 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), 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, 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), 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 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: GAUGE BOSONS, E+E ANNIHILATION, Physics and Astronomy (miscellaneous), LUND MONTE-CARLO, STANDARD MODEL, High Energy Physics::Phenomenology, DELPHI DETECTOR, OF-MASS ENERGIES, BHABHA SCATTERING, RADIATIVE-CORRECTIONS, JET FRAGMENTATION, CROSS-SECTIONS, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Engineering (miscellaneous), Particle Physics - Experiment
Abstract: The data collected with the DELPHI detector at centre-of-mass energies between 130 and 172~$\GeV$, during LEP operation in 1995 and 1996, have been used to determine the hadronic and leptonic cross-sections and leptonic forward--backward asymmetries. In addition the cross-section ratios and forward--backward asymmetries for flavour-tagged samples of light (uds), c and b quarks have been measured. The results are interpreted by performing S-matrix fits to these data and to the data collected previously at the energies near the $\Zzero$ resonance peak (88-93~$\GeV$). The results are also interpreted in terms of contact interactions, which parameterise physics beyond the Standard Model. Further interpretation of the data is made in terms of possible R-parity violating SUSY particles and of possible Z$^{'}$ bosons. No significant deviations from the Standard Model expectations are found and limits are given for the various interpretations which are made of physics beyond the Standard Model.
Published: 1999
Full Text: View/download PDF

44. Search for chargino pair production in scenarios with gravitino LSP and stau NLSP at root s similar to 183 GeV at LEP

Author: Abreu, P Adam, W Adye, T Adzic, P Albrecht, Z and Alderweireld, T Alekseev, GD Alemany, R Allmendinger, T and Allport, PP Almehed, S Amaldi, U Amapane, N Amato, S and Anassontzis, EG Andersson, P Andreazza, A Andringa, S and Antilogus, P Apel, WD Arnoud, Y Asman, B Augustin, JE and Augustinus, A Baillon, P Bambade, P Barao, F and Barbiellini, G Barbier, R Bardin, DY Barker, G and Baroncelli, A Battaglia, M Baubillier, M Becks, KH and Begalli, M Behrmann, A Beilliere, P Belokopytov, Y and Belous, K Benekos, NC Benvenuti, AC Berat, C Berggren, M and Bertini, D Bertrand, D Besancon, M Bigi, M Bilenky, MS Bizouard, MA Bloch, D Blom, HM Bonesini, M and Bonivento, W Boonekamp, M Booth, PSL Borgland, AW and Borisov, G Bosio, C Botner, O Boudinov, E Bouquet, B and Bourdarios, C Bowcock, TJV Boyko, I Bozovic, I Bozzo, M and Bracko, M Branchini, P Brenner, RA Bruckman, P and Brunet, JM Bugge, L Buran, T Buschbeck, B Buschmann, P and Cabrera, S Caccia, M Calvi, M Camporesi, T Canale, V and Carena, F Carroll, L Caso, C Gimenez, MVC Cattai, A and Cavallo, FR Chabaud, V Chapkin, M Charpentier, P and Chaussard, L Checchia, P Chelkov, GA Chierici, R and Chliapnikov, P Chochula, P Chorowicz, V Chudoba, J and Cieslik, K Collins, P Contri, R Cortina, E Cosme, G and Cossutti, F Crawley, HB Crennell, D Crepe, S Crosetti, G and Maestro, JC Czellar, S Davenport, M Da Silva, W and Deghorain, A Della Ricca, G Delpierre, P Demaria, N De Angelis, A De Boer, W De Clercq, C De Lotto, B De Min, A and De Paula, L Dijkstra, H Di Ciaccio, L Dolbeau, J and Doroba, K Dracos, M Drees, J Dris, M Duperrin, A and Durand, JD Eigen, G Ekelof, T Ekspong, G Ellert, M and Elsing, M Engel, JP Santo, ME Fanourakis, G and Fassouliotis, D Fayot, J Feindt, M Ferrari, P Ferrer, A and Ferrer-Ribas, E Ferro, F Fichet, S Firestone, A and Flagmeyer, U Foeth, H Fokitis, E Fontanelli, F Franek, B and Frodesen, AG Fruhwirth, R Fulda-Quenzer, F Fuster, J and Galloni, A Gamba, D Gamblin, S Gandelman, M Garcia, C and Gaspar, C Gaspar, M Gasparini, U Gavillet, P Gazis, EN Gele, D Ghodbane, N Gil, I Glege, F Gokieli, R and Golob, B Gomez-Ceballos, G Goncalves, P Caballero, IG and Gopal, G Gorn, L Gouz, Y Gracco, V Grahl, J and Graziani, E Gris, P Grosdidier, G Grzelak, K Guy, J and Hahn, F Hahn, S Haider, S Hallgren, A Hamacher, K and Hansen, J Harris, FJ Hedberg, V Heising, S Hernandez, JJ and Herquet, P Herr, H Hessing, TL Heuser, JM Higon, E and Holmgren, SO Holt, PJ Hoorelbeke, S Houlden, M and Hrubec, J Huber, M Huet, K Hughes, GJ Hultqvist, K and Jackson, JN Jacobsson, R Jalocha, P Janik, R Jarlskog, C and Jarlskog, G Jarry, P Jean-Marie, B Jeans, D and Johansson, EK Jonsson, P Joram, C Juillot, P Jungermann, L Kapusta, F Karafasoulis, K Katsanevas, S Katsoufis, EC and Keranen, R Kernel, G Kersevan, BP Khomenko, BA and Khovanski, NN Kiiskinen, A King, B Kinvig, A Kjaer, NJ and Klapp, O Klein, H Kluit, P Kokkinias, P Koratzinos, M Kostioukhine, V Kourkoumelis, C Kouznetsov, O Krammer, M Kriznic, E Krumstein, Z Kubinec, P Kurowska, J and Kurvinen, K Lamsa, JW Lane, DW Lapin, V Laugier, JP and Lauhakangas, R Leder, G Ledroit, F Lefebure, V Leinonen, L Leisos, A Leitner, R Lenzen, G Lepeltier, V and Lesiak, T Lethuillier, M Libby, J Liebig, W Liko, D and Lipniacka, A Lippi, I Loerstad, B Loken, JG Lopes, JH and Lopez, JM Lopez-Fernandez, R Loukas, D Lutz, P and Lyons, L MacNaughton, J Mahon, JR Maio, A Malek, A and Malmgren, TGM Maltezos, S Malychev, V Mandl, F Marco, J and Marco, R Marechal, B Margoni, M Marin, JC Mariotti, C Markou, A Martinez-Rivero, C Martinez-Vidal, F Garcia, SM Masik, J Mastroyiannopoulos, N Matorras, F Matteuzzi, C Matthiae, G Mazzucato, F Mazzucato, M Mc Cubbin, M and McKay, R McNulty, R McPherson, G Meroni, C Meyer, WT and Migliore, E Mirabito, L Mitaroff, WA Mjoernmark, U Moa, T Moch, M Moeller, R Moenig, K Monge, MR Moreau, X and Morettini, P Morton, G Mueller, U Muenich, K and Mulders, M Mulet-Marquis, C Muresan, R Murray, WJ Muryn, B Myatt, G Myklebust, T Naraghi, F Nassiakou, M and Navarria, FL Navas, S Nawrocki, K Negri, P Neufeld, N and Nicolaidou, R Nielsen, BS Niezurawski, P Nikolenko, M and Nomokonov, V Nygren, A Obraztsov, V Olshevski, AG and Onofre, A Orava, R Orazi, G Osterberg, K Ouraou, A and Paganoni, M Paiano, S Pain, R Paiva, R Palacios, J and Palka, H Papadopoulou, T Papageorgiou, K Pape, L Parkes, C Parodi, F Parzefall, U Passeri, A Passon, O Pavel, T Pegoraro, M Peralta, L Pernicka, M Petrolini, A and Phillips, HT Pierre, F Pimenta, M Piotto, E Podobnik, T and Pol, ME Polok, G Poropat, P Pozdniakov, V Privitera, P Pukhaeva, N Pullia, A Radojicic, D Ragazzi, S and Rahmani, H Rames, J Ratoff, PN Read, AL Rebecchi, P and Redaelli, NG Regler, M Rehn, J Reid, D Reinhardt, R and Renton, PB Resvanis, LK Richard, F Ridky, J Rinaudo, G and Rohme, O Romero, A Ronchese, R Rosenberg, EI and Rosinsky, P Roudeau, P Rovelli, T Royon, C and Ruhlmann-Kleider, V Ruiz, A Saarikko, H Sacquin, Y and Sadovsky, A Sajot, G Salt, J Sampsonidis, D Sannino, M and Schwemling, P Schwering, B Schwickerath, U Scuri, F and Seager, P Sedykh, Y Segar, AM Seibert, N Sekulin, R and Shellard, RC Siebel, M Simard, L Simonetto, F Sisakian, AN Smadja, G Smirnova, O Smith, GR Sokolov, A and Solovianov, O Sopczak, A Sosnowski, R Spassov, T and Spiriti, E Squarcia, S Stanescu, C Stanic, S Stanitzki, M Stevenson, K Stocchi, A Strauss, J Strub, R Stugu, B Szczekowski, M Szeptycka, M Tabarelli, T Taffard, A and Tegenfeldt, F Terranova, F Thomas, J Timmermans, J and Tinti, N Tkatchev, LG Tobin, M Todorova, S Tomaradze, A and Tome, B Tonazzo, A Tortora, L Tortosa, P and Transtromer, G Treille, D Tristram, G Trochimczuk, M and Troncon, C Tsirou, A Turluer, ML Tyapkin, IA Tzamarias, S Ullaland, O Uvarov, V Valenti, G Vallazza, E and Vander Velde, C Van Dam, P Van Den Boeck, W Van Doninck, WK and Van Eldik, J Van Lysebetten, A Van Remortel, N Van Vulpen, I Vegni, G Ventura, L Venus, W Verbeure, F and Verlato, M Vertogradov, LS Verzi, V Vilanova, D Vitale, L Vlasov, E Vodopyanov, AS Voulgaris, G Vrba, V and Wahlen, H Walck, C Washbrook, AJ Weiser, C Wicke, D and Wickens, JH Wilkinson, GR Winter, M Witek, M Wolf, G and Yi, J Yushchenko, O Zaitsev, A Zalewska, A Zalewski, P and Zavrtanik, D Zevgolatakos, E Zimin, NI Zintchenko, A and Zucchelli, GC Zumerle, G DELPHI Collaboration
Abstract: Promptly decaying lightest charginos were searched for in the context of scenarios with gravitino LSP. It was assumed that the stau is the next to lightest supersymmetric particle (NLSP). Data collected with the DELPHI detector at a centre-of-mass energy near 183 GeV were analysed combining the methods developed in previous searches. No evidence for the production of these particles was found. Hence, limits were derived at 95% confidence level. The mass of charginos was found to be greater than 85.5 GeV/c(2) for m(1+) -m(1) greater than or equal to 0.3 GeV/c(2), independently of the mass of the gravitino. (C) 1999 Published by Elsevier Science B.V. AU rights reserved.
Published: 1999

45. Search for the Higgs boson in events with isolated photons at LEP 2

Author: Abreu, P Adam, W Adye, T Adzic, P Ajinenko, I and Albrecht, Z Alderweireld, T Alekseev, GD Alemany, R and Allmendinger, T Allport, PP Almehed, S Amaldi, U and Amapane, N Amato, S Anassontzis, EG Andersson, P and Andreazza, A Andringa, S Antilogus, P Apel, WD Arnoud, Y and Asman, B Augustin, JE Augustinus, A Baillon, P and Bambade, P Barao, F Barbiellini, G Barbier, R Bardin, DY and Barker, G Baroncelli, A Battaglia, M Baubillier, M and Becks, KH Begalli, M Behrmann, A Beilliere, P and Belokopytov, Y Benekos, NC Benvenuti, AC Berat, C and Berggren, M Bertini, D Bertrand, D Besancon, M Bigi, M and Bilenky, MS Bizouard, MA Bloch, D Blom, HM Bonesini, M Bonivento, W Boonekamp, M Booth, PSL Borglund, AW and Borisov, G Bosio, C Botner, O Boudinov, E Bouquet, B and Bourdarios, C Bowcock, TJV Boyko, I Bozovic, I Bozzo, M and Branchini, P Brenke, T Brenner, RA Bruckman, P and Brunet, JM Bugge, L Buran, T Burgsmueller, T Buschbeck, B Buschmann, P Cabrera, S Caccia, M Calvi, M and Camporesi, T Canale, V Carena, F Carroll, L Caso, C and Gimenez, MVC Cattai, A Cavallo, FR Chabaud, V and Charpentier, P Chaussard, L Checchia, P Chelkov, GA and Chierici, R Chliapnikov, P Chochula, P Chorowicz, V and Chudoba, J Cieslik, K Collins, P Contri, R Cortina, E and Cosme, G Cossutti, F Cowell, JH Crawley, HB and Crennell, D Crepe, S Crosetti, G Maestro, JC Czellar, S and Davenport, M Da Silva, W Deghorain, A Della Ricca, G and Delpierre, P Demaria, N De Angelis, A De Boer, W De Clercq, C De Lotto, B De Min, A De Paula, L Dijkstra, H and Di Ciaccio, L Dolbeau, J Doroba, K Dracos, M Drees, J Dris, M Duperrin, A Durand, JD Eigen, G Ekelof, T and Ekspong, G Ellert, M Elsing, M Engel, JP Erzen, B and Santo, ME Falk, E Fanourakis, G Fassouliotis, D and Fayot, J Feindt, M Ferrari, P Ferrer, A Ferrer-Ribas, E and Ferro, F Fichet, S Firestone, A Flagmeyer, U Foeth, H Fokitis, E Fontanelli, F Franek, B Frodesen, AG and Fruhwirth, R Fulda-Quenzer, F Fuster, J Galloni, A and Gamba, D Gamblin, S Gandelman, M Garcia, C Gaspar, C and Gaspar, M Gasparini, U Gavillet, P Gazis, EN Gele, D and Gerdyukov, L Ghodbane, N Gil, I Glege, F Gokieli, R and Golob, B Gomez-Ceballos, G Goncalves, P Caballero, IG and Gopal, G Gorn, L Gorski, M Gouz, Y Gracco, V Grahl, J Graziani, E Green, C Grimm, HJ Gris, P Grosdidier, G Grzelak, K Gunther, M Guy, J Hahn, F Hahn, S and Haider, S Hallgren, A Hamacher, K Hansen, J Harris, FJ and Hedberg, V Heising, S Hernandez, JJ Herquet, P Herr, H Hessing, TL Heuser, JM Higon, E Holmgren, SO Holt, PJ Hoorelbeke, S Houlden, M Hrubec, J Huet, K and Hughes, GJ Hultqvist, K Jackson, JN Jacobsen, R Jalocha, P Janik, R Jarlskog, C Jarlskog, G Jarry, P and Jean-Marie, B Johansson, EK Jonsson, P Joram, C Juillot, P Kapusta, F Karafasoulis, K Katsanevas, S Katsoufis, EC and Keranen, R Kersevan, BP Khomenko, BA Khovanski, NN and Kiiskinen, A King, B Kinvig, A Kjaer, NJ Klapp, O and Klein, H Kluit, P Kokkinias, P Koratzinos, M and Kostioukhine, V Kourkoumelis, C Kouznetsov, O Krammer, M and Kriznic, E Krstic, J Krumstein, Z Kubinec, P Kurowska, J and Kurvinen, K Lamsa, JW Lane, DW Langefeld, P Lapin, V and Laugier, JP Lauhakangas, R Leder, G Ledroit, F and Lefebure, V Leinonen, L Leisos, A Leitner, R Lemonne, J and Lenzen, G Lepeltier, V Lesiak, T Lethuillier, M and Libby, J Liko, D Lipniacka, A Lippi, I Loerstad, B and Loken, JG Lopes, JH Lopez, JM Lopez-Fernandez, R Loukas, D Lutz, P Lyons, L MacNaughton, J Mahon, JR Maio, A and Malek, A Malmgren, TGM Maltezos, S Malychev, V and Mandl, F Marco, J Marco, R Marechal, B Margoni, M and Marin, JC Mariotti, C Markou, A Martinez-Rivero, C and Martinez-Vidal, F Garcia, SMI Masik, J Mastroyiannopoulos, N and Matorras, F Matteuzzi, C Matthiae, G Mazzucato, F and Mazzucato, M Mc Cubbin, M Mc Kay, R Mc Nulty, R Mc Pherson, G Meroni, C Meyer, WT Miagkov, A Migliore, E and Mirabito, L Mitaroff, WA Mjoernmark, U Moa, T Moch, M Moeller, R Moenig, F Monge, MR Moreau, X and Morettini, P Morton, G Mueller, U Muenich, K Mulders, M and Mulet-Marquis, C Muresan, R Murray, WJ Muryn, B and Myatt, G Myklebust, T Naraghi, F Nassiakou, M Navarria, FL Navas, S Nawrocki, K Negri, P Nemecek, S Neufeld, N Nicolaidou, R Nielsen, BS Nikolenko, M Nomokonov, V and Normand, A Nygren, A Obraztsov, M Olshevski, AG and Onofre, P Orava, R Orazi, G Osterberg, K Ouraou, A and Paganoni, M Paiano, S Pain, R Paiva, R Palacios, J and Palka, H Papadopoulou, TD Papageorgiou, K Pape, L and Parkes, C Parodi, F Parzefall, U Passeri, A Passon, O and Pegoraro, M Peralta, L Pernicka, M Perrotta, A and Petridou, C Petrolini, A Phillips, HT Pierre, F Pimenta, M Piotto, E Podobnik, T Pol, ME Polok, G Poropat, P and Pozdniakov, V Privitera, P Pukhaeva, N Pullia, N and Radojicic, D Ragazzi, S Rahmani, H Ratoff, PN Read, AL and Rebecchi, P Redaelli, NG Regler, M Reid, D and Reinhardt, R Renton, PB Resvanis, LK Richard, F Ridky, J and Rinaudo, G Rohne, O Romero, A Ronchese, P Rosenberg, EI Rosinsky, P Roudeau, P Rovelli, T Royon, C and Ruhlmann-Kleider, V Ruiz, A Saarikko, H Sacquin, Y and Sadovsky, A Sajot, G Salt, J Sampsonidis, D Sannino, M and Schneider, H Schwemling, P Schwering, B Schwickerath, U and Schyns, MAE Scuri, F Seager, P Sedykh, Y Segar, AM and Sekulin, R Shellard, RC Sheridan, A Siebel, M and Simard, L Simonetto, F Sisakian, AN Smadja, G Smirnova, O Smith, GR Solovianov, O Sopczak, A Sosnowski, R and Spassov, T Spiriti, E Sponholz, P Squarcia, S Stanescu, C Stanic, S Stevenson, K Stocchi, A Strauss, J and Strub, R Stugu, B Szczekowski, M Szeptycka, M Tabarelli, T Tchikilev, O Tegenfeldt, F Terranova, F Thomas, J and Timmermans, J Tinti, N Tkatchev, LG Todorova, S and Tomaradze, A Tome, B Tonazzo, A Tortora, L Transtromer, G Treille, D Tristram, G Trochimczuk, M Troncon, C and Tsirou, A Turluer, ML Tyapkin, IA Tzamarias, S Ullaland, O Uvarov, V Valenti, G Vallazza, E Van Apeldoorn, GW and Van Dam, P Van Doninck, WK Van Eldik, J Van Lysebetten, A and Van Remortel, N Van Vulpen, I Vassilopoulos, N Vegni, G and Ventura, L Venus, W Verbeure, F Verlato, M and Vertogradov, LS Verzi, V Vilanova, D Vitale, L Vlasov, E and Vodopyanov, AS Vollmer, C Voulgaris, G Vrba, V and Wahlen, H Walck, C Weiser, C Wicke, D Wickens, JH and Wilkinson, GR Winter, M Witek, M Wolf, G Yi, J and Yushchenko, O Zalewska, A Zalewski, P Zavrtanik, D and Zevgolatakos, E Zimin, NI Zucchelli, GC Zumerle, G and DELPHI Collaboration
Subjects: Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract: A search for the Higgs boson in final states with one, two or three isolated photons has been performed based on data taken at LEP 2 by the DELPHI detector. The data analysed correspond to a total integrated luminosity of 67.5 pb(-1) at centre-of-mass energies of 161 GeV (9.7 pb(-1)), 172 GeV (10.1 pb(-1)) and 183 GeV (47.7 pb(-1)). No evidence for the processes e(+)e(-) –> H gamma with H –> b (b) over bar or gamma gamma and e(+)e(-) –> Hq (q) over bar with H –> gamma gamma was observed. Model-independent limits on sigma(e(+)e(-) –> H gamma) x BR(H –> b (b) over bar), sigma(e(+)e(-) –> Hq (q) over bar) x BR(H –> gamma gamma) and sigma(e(+)e(-) –> H gamma) x BR(H –> gamma gamma) are set, as well as model-dependent limits on Higgs boson anomalous couplings to vector bosons. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
Published: 1999

46. Measurement of the forward backward asymmetry of c and b quarks at the Z pole using reconstructed D mesons

Author: Abreu, P Adye, T Adzic, P Albrecht, Z Alderweireld, T and Alekseev, GD Alemany, R Allmendinger, T Allport, PP and Almehed, S Amaldi, U Amato, S Anassontzis, EG Andersson, P Andreazza, A Andringa, S Antilogus, P Apel, WD and Arnoud, Y Asman, B Augustin, JE Augustinus, A Baillon, P and Bambade, P Barao, F Barbiellini, G Barbier, R and Bardin, DY Barker, G Baroncelli, A Battaglia, M and Baubillier, M Becks, KH Begalli, M Beilliere, P and Belokopytov, Y Belous, K Benvenuti, AC Berat, C and Berggren, M Bertini, D Bertrand, D Besancon, M Bianchi, F Bigi, M Bilenky, MS Bizouard, MA Bloch, D Blom, HM and Bonesini, M Bonivento, W Boonekamp, M Booth, PSL and Borgland, AW Borisov, G Bosio, C Botner, O Boudinov, E and Bouquet, B Bourdarios, C Bowcock, TJV Boyko, I and Bozovic, I Bozzo, M Branchini, P Brenke, T Brenner, RA and Bruckman, P Brunet, JM Bugge, L Buran, T and Burgsmueller, T Buschmann, P Cabrera, S Caccia, M Calvi, M Camporesi, T Canale, V Carena, F Carroll, L Caso, C Gimenez, MVC Cattai, A Cavallo, FR Chabaud, V and Chapkin, M Charpentier, P Chaussard, L Checchia, P and Chelkov, GA Chierici, R Chliapnikov, P Chochula, P and Chorowicz, V Chudoba, J Cieslik, K Collins, P Contri, R and Cortina, E Cosme, G Cossutti, F Cowell, JH Crawley, HB Crennell, D Crepe, S Crosetti, G Maestro, JC and Czellar, S 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 Lotto, B De Min, A and De Paula, L Dijkstra, H Di Ciaccio, L Dolbeau, J and Doroba, K Dracos, M Drees, J Dris, M Duperrin, A and Durand, JD Eigen, G Ekelof, T Ekspong, G Ellert, M and Elsing, M Engel, JP Erzen, B Santo, ME Falk, E and Fanourakis, G Fassouliotis, D Fayot, J Feindt, M Fenyuk, A Ferrari, P Ferrer, A Ferrer-Ribas, E Fichet, S and Firestone, A Flagmeyer, U Foeth, H Fokitis, E and Fontanelli, F Franek, B Frodesen, AG Fruhwirth, R and Fulda-Quenzer, F Fuster, J Galloni, A Gamba, D Gamblin, S Gandelman, M Garcia, C Gaspar, C Gaspar, M and Gasparini, U Gavillet, P Gazis, EN Gele, D Ghodbane, N and Gil, I Glege, F Gokieli, R Golob, B Gomez-Ceballos, G Goncalves, P Caballero, IG Gopal, G Gorn, L and Gorski, M Gouz, Y Gracco, V Grahl, J Graziani, E and Green, C Grimm, HJ Gris, P Grosdidier, G Grzelak, K and Gunther, M Guy, J Hahn, F Hahn, S Haider, S and Hallgren, A Hamacher, K Hansen, J Harris, FJ Hedberg, V and Heising, S Hernandez, JJ Herquet, P Herr, H Hessing, TL Heuser, JM Hultqvist, K Jackson, JN Jacobsson, R and Jalocha, P Janik, R Jarlskog, C Jarlskog, G Jarry, P and Jean-Marie, B Johansson, EK Jonsson, P Joram, C Juillot, P Kapusta, F Karafasoulis, K Katsanevas, S Katsoufis, EC and Keranen, R Kersevan, BP Khomenko, BA Khovanski, NN and Kiiskinen, A King, B Kinvig, A Kjaer, NJ Klapp, O and Klein, H Kluit, P Kokkinias, P Koratzinos, M and Kostioukhine, V Kourkoumelis, C Kouznetsov, O Krammer, M and Kriznic, E Krstic, P Krumstein, Z Kubinec, P Kurowska, J and Kurvinen, K Lamsa, JW Lane, DW Langefeld, P Lapin, V and Laugier, JP Lauhakangas, R Leder, G Ledroit, F and Lefebure, V Leinonen, L Leisos, A Leitner, R Lemonne, J and Lenzen, G Lepeltier, V Lesiak, T Lethuillier, M and Libby, J Liko, D Lipniacka, A Lippi, I Loerstad, B and Loken, JG Lopes, JH Lopez, JM Lopez-Fernandez, R Loukas, D Lutz, P Lyons, L MacNaughton, J Mahon, JR Maio, A and Malek, A Malmgren, TGM Malychev, V Mandl, F Marco, J and Marco, R Marechal, B Margoni, M Marin, JC Mariotti, C Markou, A Martinez-Rivero, C Martinez-Vidal, F Garcia, SMI Masik, J Mastroiannopoulos, N Matorras, F Matteuzzi, C Matthiae, G Mazzucato, F Mazzucato, M McCubbin, M and McKay, R McNulty, R McPherson, G Meroni, C Meyer, WT and Migliore, E Mirabito, L Mitaroff, WA Mjoernmark, U Moa, T Moch, M Moeller, R Moenig, K Monge, MR Moreau, X and Morettini, P Morton, G Mueller, U Muenich, K and Mulders, M Mulet-Marquis, C Muresan, R Murray, WJ Muryn, B Myatt, G Myklebust, T Naraghi, F Navarria, FL and Navas, S Nawrocki, K Negri, P Nemecek, S Neufeld, N and Neumeister, N Nicolaidou, R Nielsen, BS Nikolenko, M and Nomokonov, V Normand, A Nygren, A Obraztsov, V and Olshevski, AG Onofre, A Orava, R Orazi, G Osterberg, K and Ouraou, A Paganoni, M Paiano, S Pain, R Paiva, R and Palacios, J Palka, H Papadopoulou, TD Papageorgiou, K and Pape, L Parkes, C Parodi, F Parzefall, U Passeri, A and Passon, O Pegoraro, M Peralta, L Pernicka, M Perrotta, A and Petridou, C Petrolini, A Phillips, HT Pierre, F and Pimenta, M Piotto, E Podobnik, T Pol, ME Polok, G and Poropat, P Pozdniakov, V Privitera, P Pukhaeva, N and Pullia, A Radojicic, D Ragazzi, S Rahmani, H Rakoczy, D and Ratoff, PN Read, AL Rebecchi, P Redaelli, NG Regler, M Reid, D Reinhardt, R Renton, PB Resvanis, LK and Richard, F Ridky, J Rinaudo, G Rohne, O Romero, A and Ronchese, P Rosenberg, EI Rosinsky, P Roudeau, P and Rovelli, T Royon, C Ruhlmann-Kleider, V Ruiz, A and Saarikko, H Sacquin, Y Sadovsky, A Sajot, G Salt, J and Sampsonidis, D Sannino, M Schneider, H Schwemling, P and Schwickerath, U Schyns, MAE Scuri, F Seager, P Sedykh, Y and Segar, AM Sekulin, R Shellard, RC Sheridan, A and Siebel, M Simard, L Simonetto, F Sisakian, AN Smadja, G and Smirnov, N Smirnova, O Smith, GR Sopczak, A and Sosnowski, R Spassov, T Spiriti, E Sponholz, P Squarcia, S Stampfer, D Stanescu, C Stanic, S Stevenson, K and Stocchi, A Strauss, J Strub, R Stugu, B Szczekowski, M and Szeptycka, M Tabarelli, T Tegenfeldt, F Terranova, F and Thomas, J Timmermans, J Tinti, N Tkatchev, LG Todorova, S Tomaradze, A Tome, B Tonazzo, A Tortora, L and Transtromer, G Treille, D Tristram, G Trochimczuk, M and Troncon, C Tsirou, A Turluer, ML Tyapkin, IA Tzamarias, S Ueberschaer, B Ullaland, O Uvarov, V Valenti, G and Vallazza, E Van Apeldoorn, GW Van Dam, P Van Doninck, WK and Van Eldik, J Van Lysebetten, A Van Vulpen, I Vassilopoulos, N Vegni, G Ventura, L Venus, W Verbeure, F Verlato, M Vertogradov, LS Verzi, V Vilanova, D Vitale, L and Vlasov, E Vodopyanov, AS Wilkinson, GR Winter, M Witek, M Wolf, G Yi, J Yushchenko, O Zaitsev, A Zalewska, A and Zalewski, P Zavrtanik, D Zevgolatakos, E Zimin, NI and Zucchelli, GC Zumerle, G DELPHI Collaboration
Subjects: High Energy Physics::Experiment, Nuclear Experiment
Abstract: A measurement of the forward-backward asymmetry of e(+)e(-) –> c (c) over bar and e(+)e(-) –> b (b) over bar on the Z resonance is performed using about 3.5 million hadronic Z decays collected by the DELPHI detector at LEP in the years 1992 to 1995. The heavy quark is tagged by the exclusive reconstruction of several D meson decay modes. The forward-backward asymmetries for c and b quarks at the Z resonance are determined to be: A(FB)(c)(root s = 91.235 GeV) = 0.0659 +/- 0.0094(stat) +/- 0.0035(syst) A(FB)(b)(root s = 91.235 GeV) = 0.0762 +/- 0.0194(stat) +/- 0.0085(syst) A(FB)(c)(root s = 89.434GeV) = -0.0496 +/- 0.0368(stat) +/- 0.0053(syst) A(FB)(b)(root s = 89.434 GeV) = 0.0567 +/- 0.0756(stat) +/- 0.0117(syst) A(FB)(c)(root s = 92.990 GeV) = 0.1180 +/- 0.0318(stat) +/- 0.0062(syst) A(FB)(b)(root s = 92.990 GeV) = 0.0882 +/- 0.0633(stat) +/- 0.0122(syst) The combination of these results leads to an effective electroweak mixing angle of: sin(2) theta(eff)(lept) = 0.2332 +/- 0.0016.
Published: 1999

47. Search for scalar fermions and long-lived scalar leptons at centre-of-mass energies of 130 GeV to 172 GeV

Author: Abreu, P Adam, W Adye, T Adzic, P Ajinenko, I and Alekseev, GD Alemany, R Allport, PP Almehed, S Amaldi, U and Amato, S Anassontzis, EG Andersson, P Andreazza, A and Andringa, S Antilogus, P Apel, WD Arnoud, Y Asman, B and Augustin, JE Augustinus, A Baillon, P Bambade, P Barao, F Barbiellini, G Barbier, R Bardin, DY Barker, G and Baroncelli, A Battaglia, M Baubillier, M Becks, KH and Begalli, M Beilliere, P Belokopytov, Y Benvenuti, AC and Berat, C Berggren, M Bertini, D Bertrand, D Besancon, M and Bianchi, F Bigi, M Bilenky, MS Bizouard, MA Bloch, D and Blom, HM Bonesini, M Bonivento, W Boonekamp, M and Booth, PSL Borgland, AW Borisov, G Bosio, C Botner, O and Boudinov, E Bouquet, B Bourdarios, C Bowcock, TJV and Boyko, I Bozovic, I Bozzo, M Branchini, P Brenke, T and Brenner, RA Bruckman, P Brunet, JM Bugge, L Buran, T and Burgsmueller, T Buschmann, P Cabrera, S Caccia, M Calvi, M Rozas, AJC Camporesi, T Canale, V Carena, F and Carroll, L Caso, C Gimenez, MVC Cattai, A Cerruti, C and Chabaud, V Charpentier, P Chaussard, L Checchia, P and Chelkov, GA Chierici, R Chliapnikov, P Chochula, P and Chorowicz, V Chudoba, J Collins, P Colomer, M Contri, R and Cortina, E Cosme, G Cossutti, F Cowell, JH Crawley, HB Crennell, D Crosetti, G Maestro, JC Czellar, S and Damgaard, G 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 Lotto, B De Min, A and De Paula, L Dijkstra, H Di Ciaccio, L Di Diodato, A and Dolbeau, J Doroba, K Dracos, M Drees, J Dris, M and Duperrin, A Durand, JD Ehret, R Eigen, G Ekelof, T and Ekspong, G Ellert, M Elsing, M Engel, JP Erzen, B and Santo, ME Falk, E Fanourakis, G Fassouliotis, D Fayot, J and Feindt, M Ferrari, P Ferrer, A Ferrer-Ribas, E and Fichet, S Firestone, A Fischer, PA Flagmeyer, U Foeth, H and Fokitis, E Fontanelli, F Franek, B Frodesen, AG and Fruhwirth, R Fulda-Quenzer, F Fuster, J Galloni, A and Gamba, D Gamblin, S Gandelman, M Garcia, C Garcia, J and Gaspar, C Gaspar, M Gasparini, U Gavillet, P Gazis, EN and Gele, D Gerber, JP Ghodbane, N Gil, I Glege, F and Gokieli, R Golob, B Goncalves, P Caballero, IG Gopal, G and Gorn, L Gorski, M Gouz, Y Gracco, V Grahl, J and Graziani, E Green, C Gris, P Grzelak, K Gunther, M and Guy, J Hahn, F Hahn, S Haider, S Hallgren, A and Hamacher, K Harris, FJ Hedberg, V Heising, S Hernandez, JJ Herquet, P Herr, H Hessing, TL Heuser, JM Higon, E Holmgren, SO Holt, PJ Holthuizen, D Hoorelbeke, S and Houlden, M Hrubec, J Huet, K Hultqvist, K Jackson, JN and Jacobsson, R Jalocha, P Janik, R Jarlskog, C and Jarlskog, G Jarry, P Jean-Marie, B Johansson, EK and Jonsson, P Joram, C Juillot, P Kapusta, F Karafasoulis, K Katsanevas, S Katsoufis, EC Keranen, R Khomenko, BA and Khovanski, NN Kiiskinen, A King, B Kjaer, NJ Klapp, O Klein, H Kluit, P Knoblauch, D Kokkinias, P and Konopliannikov, A Koratzinos, M Kostioukhine, V and Kourkoumelis, C Kouznetsov, O Krammer, M Kreuter, C and Kriznic, E Krstic, J Krumstein, Z Kubinec, P Kucewicz, W and Kurvinen, K Lamsa, JW Lane, DW Langefeld, P Lapin, V and Laugier, JP Lauhakangas, R Leder, G Ledroit, F and Lefebure, V Leinonen, L Leisos, A Leitner, R Lenzen, G and Lepeltier, V Lesiak, T Lethuillier, M Libby, J Liko, D Lipniacka, A Lippi, I Loerstad, B Lokajicek, M and Loken, JG Lopes, JH Lopez, JM Lopez-Fernandez, R Loukas, D Lutz, P Lyons, L MacNaughton, J Mahon, JR Maio, A and Malek, A Malmgren, TGM Malychev, V Mandl, F Marco, J and Marco, R Marechal, B Margoni, M Marin, JC Mariotti, C Markou, A Martinez-Rivero, C Martinez-Vidal, F Garcia, SMI Mastroyiannopoulos, N Matorras, F Matteuzzi, C and Matthiae, G Mazik, J Mazzucato, F Mazzucato, M Mc Cubbin, M Mc Kay, R Mc Nulty, R Mc Pherson, G Meroni, C and Meyer, WT Miagkov, A Migliore, E Mirabito, L and Mjoernmark, U Moa, T Moeller, R Moenig, K Monge, MR and Moreau, X Morettini, P Morton, G Mueller, U Muenich, K and Mulders, M Mulet-Marquis, C Muresan, R Murray, WJ and Muryn, B Myatt, G Myklebust, T Naraghi, F Navas, S and Nawrocki, K Negri, P Neufeld, N Neumeister, N and Nicolaidou, R Nielsen, BS Nikolaenko, V Nikolenko, M and Nomokonov, V Normand, A Nygren, A Obraztsov, V and Olshevski, AG Onofre, A Orava, R Orazi, G Osterberg, K and Ouraou, A Paganoni, M Paiano, S Pain, R Paiva, R and Palacios, J Palka, H Papadopoulou, TD Papageorgiou, K and Pape, L Parkes, C Parodi, F Parzefall, U Passeri, A and Passon, O Pegoraro, M Peralta, L Pernicka, M Perrotta, A and Petridou, C Petrolini, A Phillips, HT Piana, G and Pierre, F Pimenta, M Piotto, E Podobnik, T Pol, ME and Polok, G Poropat, P Pozdniakov, V Privitera, P Pukhaeva, N Pullia, A Radojicic, D Ragazzi, S Rahmani, H and Rakoczy, D Ratoff, PN Read, AL Rebecchi, P Redaelli, NG and Regler, M Reid, D Reinhardt, R Renton, PB Resvanis, LK Richard, F Ridky, J Rinaudo, G Rohne, O Romero, A and Ronchese, P Rosenberg, EI Rosinsky, P Roudeau, P and Rovelli, T Ruhlmann-Kleider, V Ruiz, A Saarikko, H and Sacquin, Y Sadovsky, A Sajot, G Salt, J Sampsonidis, D and Sannino, M Schneider, H Schwemling, P Schwickerath, U and Schyns, MAE Seuri, F Seager, P Sedykh, Y Segar, AM and Sekulin, R Shellard, RC Sheridan, A Siebel, M and Silvestre, R Simard, L Simonetto, F Sisakian, AN Skaali, TB Smadja, G Smirnov, N Smirnova, O Smith, GR and Sopczak, A Sosnowski, R Spassov, T Spiriti, E Sponholz, P Squarcia, S Stampfer, D Stanescu, C Stanic, S and Stapnes, S Stevenson, K Stocchi, A Strauss, J Strub, R and Stugu, B Szczekowski, M Szeptycka, M Tabarelli, T and Tchikilev, O Tegenfeldt, F Terranova, F Thomas, J and Tilquin, A Timmermans, J Tkatchev, LG Todorov, T and Todorova, S Toet, DZ Tomaradze, A Tome, B Tonazzo, A and Tortora, L Transtromer, G Treille, D Tristram, G and Troncon, C Tsirou, A Turluer, ML Tyapkin, IA Tzamarias, S Ueberschaer, B Ullaland, O Uvarov, V Valenti, G and Vallazza, E Vander Velde, C Van Apeldoorn, GW Van Dam, P and Van Eldik, J Van Lysebetten, A Van Vulpen, I Vassilopoulos, N Vegni, G Ventura, L Venus, W Verbeure, F Verlato, M Vertogradov, LS Verzi, V Vilanova, D Vitale, L and Vlasov, E Vodopyanov, AS Voulgaris, G Vrba, V Wahlen, H and Walck, C Weiser, C Wicke, D Wickens, JH Wilkinson, GR Winter, M Witek, M Wolf, G Yi, J Yushchenko, O and Zalewska, A Zalewski, P Zavrtanik, D Zevgolatakos, E and Zimin, NI Zucchelli, GC Zumerle, G DELPHI Collaboration
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract: Data taken by DELPHI during the 1995 and 1996 LEP runs have been used to search for the supersymmetric partners of electron, muon and tau leptons and of top and bottom quarks. The observations are in agreement with standard model predictions. Limits are set on sfermion masses. Searches for long lived scalar leptons from low scale supersymmetry breaking models exclude stau masses below 55 GeV/c(2) at the 95% confidence level, irrespective of the gravitino mass.
Published: 1999

48. Search for charginos, neutralinos and gravitinos in e(+)e(-) interactions at root s = 183 GeV

Author: Abreu, P Adam, W Adye, T Adzic, P Ajinenko, I and Aldeweireld, T Alekseev, GD Alemany, R Allmendinger, T and Allport, PP Almehed, S Amaldi, U Amato, S Anassontzis, EG Andersson, P Andreazza, A Andringa, S Antilogus, P and Apel, WD Arnoud, Y Asman, B Augustin, JE Augustinus, A Baillon, P Bambade, P Barao, F Barbiellini, G and Barbier, R Bardin, DY Barker, G Baroncelli, A Battaglia, M Baubillier, M Becks, KH Begalli, M Beilliere, P and Belokopytov, Y Benvenuti, AC Berat, C Berggren, M and Bertini, D Bertrand, D Besancon, M Bianchi, F Bigi, M and Bilenky, MS Bizouard, MA Bloch, D Blom, HM Bonesini, M Bonivento, W Boonekamp, M Booth, PSL Borgland, AW and Borisov, G Bosio, C Botner, O Boudinov, E Bouquet, B and Bourdarios, C Bowcock, TJV Boyko, I Bozovic, I Bozzo, M and Branchini, P Brenke, T Brenner, RA Bruckman, P and Brunet, JM Bugge, L Buran, T Burgsmueller, T Buschmann, P Cabrera, S Caccia, M Calvi, M Rozas, AJC and Camporesi, T Canale, V Carena, F Carroll, L Caso, C and Gimenez, MVC Cattai, A Cavallo, FR Chabaud, V and Charpentier, P Chaussard, L Checchia, P Chelkov, GA and Chierici, R Chliapnikov, P Chochula, P Chorowicz, V and Chudoba, J Collins, P Contri, R Cortina, E Cosme, G and Cossutti, F Cowell, JH Crawley, HB Crennell, D Crosetti, G Maestro, JC Czellar, S Damgaard, G Davenport, M Da Silva, W Deghorain, A Della Ricca, G Delpierre, P and Demaria, N De Angelis, A De Boer, W De Brabandere, S De Clercq, C De Lotto, B De Min, A De Paula, L Dijkstra, H and Di Ciaccio, L Dolbeau, J Doroba, K Dracos, M Drees, J Dris, M Duperrin, A Durand, JD Eigen, G Ekelof, T and Ekspong, G Ellert, M Elsing, M Engel, JP Erzen, B and Santo, ME Falk, E Fanourakis, G Fassouliotis, D and Fayot, J Feindt, M Ferrari, P Ferrer, A Ferrer-Ribas, E and Fichet, S Firestone, A Fischer, PA Flagmeyer, U and Foeth, U Fokitis, E Fontanelli, F Franek, B Frodesen, AG and Fruhwirth, R Fulda-Quenzer, F Fuster, J Galloni, A and Gamba, D Gamblin, S Gandelman, M Garcia, C Garcia, J and Gaspar, C Gaspar, M Gasparini, U Gavillet, P Gazis, EN and Gele, D Gerdyukov, L Ghodbane, N Gil, I Glege, F and Gokieli, R Golob, B Gomez-Ceballos, G Goncalves, P and Caballero, IG Gopal, G Gorn, L Gorski, M Gouz, Y and Gracco, V Grahl, J Graziani, E Green, C Grimm, HJ and Gris, P Grzelak, K Gunther, M Guy, J Hahn, F Hahn, S and Haider, S Hallgren, A Hamacher, K Harris, FJ and Hedberg, V Heising, S Hernandez, JJ Herquet, P Herr, H and Hessing, TL Heuser, JM Higon, E Holmgren, SO Holt, PJ Holthuizen, D Hoorelbeke, S Houlden, M Hrubec, J and Huet, K Hughes, GJ Hultqvist, K Jackson, JN Jacobsson, R and Jalocha, P Janik, R Jarslkog, C Jarlskog, G Jarry, P and Jean-Marie, B Johansson, EK Jonsson, P Joram, C and Juillot, P Kapusta, F Karafasoulis, K Katsanevas, S and Katsoufis, EC Keranen, R Kersevan, BP Khomenko, BA and Khovanski, NN Kiiskinen, A King, B Kinvig, A Kjaer, NJ and Klapp, O Klein, H Kluit, P Kokkinias, P Koratzinos, M Kostioukhine, V Kourkoumelis, C Kouznetsov, O Krammer, M Kreuter, C Kriznic, E Krstic, J Krumstein, Z and Kubinec, P Kucewicz, W Kurowska, J Kurvinen, K Lamsa, JW and Lane, DW Langefeld, P Lapin, V Laugier, JP and Lauhakangas, R Leder, G Ledroit, F Lefebure, V Leinonen, L Leisos, A Leitner, R Lemonne, J Lenzen, G and Lepeltier, V Lesiak, T Lethuillier, E Libby, J Liko, D and Lipniacka, A Lippi, I Loerstad, B Loken, JG Lopes, JH Lopez, JM Lopez-Fernandez, R Loukas, D Lutz, P and Lyons, L Mahon, JR Maio, A Malek, A Malmgren, TGM and Malychev, V Mandl, F Marco, J Marco, R Marechal, B and Margoni, M Marin, JC Mariotti, C Markou, A and Martinez-Rivero, C Martinez-Vidal, F Garcia, SMI and Mastroyiannopoulos, N Matorras, F Matteuzzi, C Matthiae, G and Mazik, J Mazzucato, F Mazzucato, M McCubbin, M and McKay, R McNulty, R McPherson, G Meroni, C Meyer, WT and Miagkov, A Migliore, E Mirabito, L Mitaroff, WA and Mjoernmark, U Moa, T Moeller, R Moenig, K Monge, MR and Moreau, X Morettini, P Morton, G Mueller, U Muenich, K and Mulders, M Mulet-Marquis, C Muresan, R Murray, WJ and Muryn, B Myatt, G Myklebust, T Naraghi, F Navarria, FL and Navas, S Nawrocki, K Negri, P Nemecek, S Neufeld, N and Neumeister, N Nicolaidou, R Nielsen, BS Nikolenko, M and Nomokonov, V Normand, A Nygren, A Obraztsov, V and Olshevski, AG Onofre, A Orava, R Orazi, G Osterberg, K and Ouraou, A Paganoni, M Paiano, S Pain, R Paiva, R and Palacios, J Palka, H Papadopoulou, TD Papageorgiou, K and Pape, L Parkes, C Parodi, F Parzefall, U Passeri, A and Passon, O Pegoraro, M Peralta, L Pernicka, M Perrotta, A and Petridou, C Petrolini, A Phillips, HT Pierre, F and Pimenta, M Piotto, E Podobnik, T Pol, ME Polok, G and Poropat, P Pozdniakov, V Privitera, P Pukhaeva, N and Pullia, A Radojicic, D Ragazzi, S Rahmani, H Rakoczy, D and Ratoff, PN Read, AL Rebecchi, P Redaelli, NG Regler, M Reid, D Reinhardt, R Renton, PB Resvanis, LK and Richard, F Ridky, J Rinaudo, G Rohne, O Romero, A and Ronchese, P Rosenberg, EI Rosinsky, P Roudeau, P and Rovelli, T Royon, C Ruhlmann-Kleider, V Ruiz, A and Saarikko, H Sacquin, Y Sadovsky, A Sajot, G Salt, J and Sampsonidis, D Sannino, M Schneider, H Schwemling, P and Schwickerath, U Schyns, MAE Scuri, F Seager, P Sedykh, Y and Segar, AM Sekulin, R Shellard, RC Sheridan, A and Siebel, M Simard, L Simonetto, F Sisakian, AN Skaali, TB and Smadja, G Smirnova, O Smith, GR Sokolov, A and Solovianov, O Sopczak, A Sosnowski, R Spassov, T and Spiriti, E Sponholz, P Squarcia, S Stampfer, D Stanescu, C Stanic, S Stapnes, S Stevenson, K Stocchi, A and Strauss, J Strub, R Stugu, B Szczekowski, M Szeptycka, M and Tabarelli, T Tegenfeldt, F Terranova, F Thomas, J and Tilquin, A Timmermans, J Tinti, N Tkatchev, LG Todorova, S Toet, DZ Tome, B Tonazzo, A Tortora, L and Transtromer, G Treille, D Tristram, G Trochimczuk, M and Troncon, C Tsirou, A Turluer, ML Tyapkin, IA Tzamarias, S Ueberschaer, B Ullaland, O Uvarov, V Valenti, G and Vallazza, E Vander Velde, C Van Apeldoorn, GW Van Dam, P and Van Doninck, WK Van Eldik, J Van Lysebetten, A Van Vulpen, I and Vassilopoulos, N Vegni, G Ventura, L Venus, W and Verbeure, F Verlato, M Vertogradov, LS Verzi, V and Vilanova, D Vitale, L Vlasov, E Vodopyanov, AS Vollmer, C Voulgaris, G Vrba, V Wahlen, H Walck, C Weiser, C and Wicke, D Wickens, JH Wilkinson, GR Winter, M Witek, M Wolf, G Yi, J Yushchenko, O Zalewska, A Zalewski, P Zavrtanik, D Zevgolatakos, E Zimin, NI Zucchelli, GC and Zumerle, G DELPHI Collaboration
Abstract: An update of the searches for charginos and neutralinos is presented, based on a data sample corresponding to the 53.9 pb(-1) recorded by the DELPHI detector in 1997, at a centre-of-mass energy of 183 GeV. No evidence for a signal was found. The lower mass limits are 4-5 GeV/c(2) higher than those obtained at a centre-of-mass energy of 172 GeV. The (mu M-2) domain excluded by combining the neutralino and chargino searches implies a limit on the mass of the Lightest neutralino which, for a heavy sneutrino, is constrained to be above 29.1 GeV/c(2) for tan beta greater than or equal to 1. (C) 1999 Elsevier Science B.V. All rights reserved.
Published: 1999

49. Search for charginos, neutralinos and gravitinos in e(+)e(-) interactions at root s = 183 GeV

Author: Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Aldeweireld, T, Alekseev, GD, Alemany, R, Allmendinger, T, Allport, PP, Almehed, S, Amaldi, U, Amato, S, Anassontzis, EG, Andersson, P, Andreazza, A, Andringa, S, Antilogus, P, Apel, WD, Arnoud, Y, Asman, B, Augustin, JE, Augustinus, A, Baillon, P, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, DY, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, KH, Begalli, M, Beilliere, P, Belokopytov, Y, Benvenuti, AC, Berat, C, Berggren, M, Bertini, D, Bertrand, D, Besancon, M, Bianchi, F, Bigi, M, Bilenky, MS, Bizouard, MA, Bloch, D, Blom, HM, Bonesini, M, Bonivento, W, Boonekamp, M, Booth, PSL, Borgland, AW, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, TJV, Boyko, I, Bozovic, I, Bozzo, M, Branchini, P, Brenke, T, Brenner, RA, Bruckman, P, Brunet, JM, Bugge, L, Buran, T, Burgsmueller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Rozas, AJC, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, MVC, Cattai, A, Cavallo, FR, Chabaud, V, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, GA, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, JH, Crawley, HB, Crennell, D, Crosetti, G, Maestro, JC, Czellar, S, Damgaard, G, 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 Lotto, B, De Min, A, De Paula, L, Dijkstra, H, Di Ciaccio, L, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Duperrin, A, Durand, JD, Eigen, G, Ekelof, T, Ekspong, G, Ellert, M, Elsing, M, Engel, JP, Erzen, B, Santo, ME, Falk, E, Fanourakis, G, Fassouliotis, D, Fayot, J, Feindt, M, Ferrari, P, Ferrer, A, Ferrer-Ribas, E, Fichet, S, Firestone, A, Fischer, PA, Flagmeyer, U, Foeth, U, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, AG, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Garcia, J, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, EN, Gele, D, Gerdyukov, L, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez-Ceballos, G, Goncalves, P, Caballero, IG, Gopal, G, Gorn, L, Gorski, M, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Green, C, Grimm, HJ, Gris, P, Grzelak, K, Gunther, M, Guy, J, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Harris, FJ, Hedberg, V, Heising, S, Hernandez, JJ, Herquet, P, Herr, H, Hessing, TL, Heuser, JM, Higon, E, Holmgren, SO, Holt, PJ, Holthuizen, D, Hoorelbeke, S, Houlden, M, Hrubec, J, Huet, K, Hughes, GJ, Hultqvist, K, Jackson, JN, Jacobsson, R, Jalocha, P, Janik, R, Jarslkog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, EK, Jonsson, P, Joram, C, Juillot, P, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, EC, Keranen, R, Kersevan, BP, Khomenko, BA, Khovanski, NN, Kiiskinen, A, King, B, Kinvig, A, Kjaer, NJ, Klapp, O, Klein, H, Kluit, P, Kokkinias, P, Koratzinos, M, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kreuter, C, Kriznic, E, Krstic, J, Krumstein, Z, Kubinec, P, Kucewicz, W, Kurowska, J, Kurvinen, K, Lamsa, JW, Lane, DW, Langefeld, P, Lapin, V, Laugier, JP, Lauhakangas, R, Leder, G, Ledroit, F, Lefebure, V, Leinonen, L, Leisos, A, Leitner, R, Lemonne, J, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, E, Libby, J, Liko, D, Lipniacka, A, Lippi, I, Loerstad, B, Loken, JG, Lopes, JH, Lopez, JM, Lopez-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, Mahon, JR, Maio, A, Malek, A, Malmgren, TGM, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, JC, Mariotti, C, Markou, A, Martinez-Rivero, C, Martinez-Vidal, F, Garcia, SMI, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazik, J, Mazzucato, F, Mazzucato, M, McCubbin, M, McKay, R, McNulty, R, McPherson, G, Meroni, C, Meyer, WT, Miagkov, A, Migliore, E, Mirabito, L, Mitaroff, WA, Mjoernmark, U, Moa, T, Moeller, R, Moenig, K, Monge, MR, Moreau, X, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mulet-Marquis, C, Muresan, R, Murray, WJ, Muryn, B, Myatt, G, Myklebust, T, Naraghi, F, Navarria, FL, Navas, S, Nawrocki, K, Negri, P, Nemecek, S, Neufeld, N, Neumeister, N, Nicolaidou, R, Nielsen, BS, Nikolenko, M, Nomokonov, V, Normand, A, Nygren, A, Obraztsov, V, Olshevski, AG, Onofre, A, Orava, R, Orazi, G, Osterberg, K, Ouraou, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, TD, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Pegoraro, M, Peralta, L, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, HT, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Pol, ME, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Rakoczy, D, Ratoff, PN, Read, AL, Rebecchi, P, Redaelli, NG, Regler, M, Reid, D, Reinhardt, R, Renton, PB, Resvanis, LK, Richard, F, Ridky, J, Rinaudo, G, Rohne, O, Romero, A, Ronchese, P, Rosenberg, EI, Rosinsky, P, Roudeau, P, Rovelli, T, Royon, C, 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, MAE, Scuri, F, Seager, P, Sedykh, Y, Segar, AM, Sekulin, R, Shellard, RC, Sheridan, A, Siebel, M, Simard, L, Simonetto, F, Sisakian, AN, Skaali, TB, Smadja, G, Smirnova, O, Smith, GR, Sokolov, A, 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, Tinti, N, Tkatchev, LG, Todorova, S, Toet, DZ, Tome, B, Tonazzo, A, Tortora, L, Transtromer, G, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Tsirou, A, Turluer, ML, Tyapkin, IA, Tzamarias, S, Ueberschaer, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Vander Velde, C, Van Apeldoorn, GW, Van Dam, P, Van Doninck, WK, Van Eldik, J, Van Lysebetten, A, Van Vulpen, I, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verlato, M, Vertogradov, LS, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, AS, Vollmer, C, Voulgaris, G, Vrba, V, Wahlen, H, Walck, C, Weiser, C, Wicke, D, Wickens, JH, Wilkinson, GR, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, NI, Zucchelli, GC, Zumerle, G, and Collaboration, DELPHI
Subjects: PHYSICS, Nuclear and High Energy Physics, EVENT, ENERGIES, MONTE-CARLO PROGRAM, SUPERLIGHT GRAVITINO, RADIATIVE-CORRECTIONS, SUPERGRAVITY, Z-DECAYS, SUPERSYMMETRY, DETECTOR
Abstract: An update of the searches for charginos and neutralinos is presented, based on a data sample corresponding to the 53.9 pb-1 recorded by the DELPHI detector in 1997, at a centre-of-mass energy of 183 GeV. No evidence for a signal was found. The lower mass limits are 4-5 GeV/c2 higher than those obtained at a centre-of-mass energy of 172 GeV. The (μ,M2) domain excluded by combining the neutralino and chargino searches implies a limit on the mass of the lightest neutralino which, for a heavy sneutrino, is constrained to be above 29.1 GeV/c2 for tan β ≥ 1. © 1999 Elsevier Science B.V. All rights reserved.
Published: 1999

50. Study of the four-jet anomaly observed at LEP centre-of-mass energies of 130 and 136 GeV

Author: Abreu, P Adam, W Adye, T Adzic, P Ajinenko, I and Albrecht, Z Alderweireld, T Alekseev, GD Alemany, R and Allmendinger, T Allport, PP Almehed, S Amaldi, U Amato, S Anassontzis, EG Andersson, P Andreazza, A Andringa, S and Antilogus, P Apel, WD Arnoud, Y Aman, B Augustin, JE and Augustinus, A Baillon, P Bambade, P Barao, F and Barbiellini, G Barbier, R Bardin, DY Barker, G and Baroncelli, A Battaglia, M Baubillier, M Becks, KH and Begalli, M Beilliere, P Belokopytov, Y Benvenuti, AC and Berat, C Berggren, M Bertini, D Bertrand, D Besancon, M and Bianchi, F Bigi, M Bilenky, MS Bizouard, MA Bloch, D and Bloom, HM Bonesini, M Bonivento, W Boonekamp, M and Booth, PSL Borgland, AW Borisov, G Bosio, C Botner, O and Boudinov, E Bouquet, B Bourdarios, C Bowcock, TJV and Boyko, I Bozovic, I Bozzo, M Branchini, P Brenke, T and Brenner, RA Bruckman, P Brunet, JM Bugge, L Buran, T and Burgsmueller, T Buschmann, P Cabrera, S Caccia, M Calvi, M Rozas, AJC Camporesi, T Canale, V Carena, F and Carroll, L Caso, C Gimenez, MVC Cattai, A Cavallo, FR and Chabaud, V Charpentier, P Chaussard, L Checchia, P and Chelkov, GA Chierici, R Chliapnikov, P Chochula, P and Chorowicz, V Chudoba, J Collins, P Contri, R Cortina, E and Cosme, G Cossutti, F Cowell, JH Crawley, HB and Crennell, D Crepe, S Crosetti, G Maestro, JC Czellar, S and Damgaard, G Davenport, M Da Silva, W Deghorain, A and Della Ricca, G Delpierre, P Demaria, N De Angelis, A De Boer, W De Brabandere, S De Clercq, C De Lotto, B De Min, A De Paula, L Dijkstra, H Di Ciaccio, L Dolbeau, J and Doroba, K Dracos, M Drees, J Dris, M Duperrin, A and Durand, JD Eigen, G Ekelof, T Ekspong, G Ellert, M and Elsing, M Engel, JP Erzen, B Santo, ME Falk, E and Fanourakis, G Fassouliotis, D Fayot, J Feindt, M and Ferrari, P Ferrer, A Ferrer-Ribas, E Fichet, S and Firestone, A Flagmeyer, U Foeth, H Fokitis, E and Fontanelli, F Franek, B Frodesen, AG Fruhwirth, R and Fulda-Quenzer, F Fuster, J Galloni, A Gamba, D Gamblin, S Gandelman, M Garcia, C Garcia, J Gaspar, C Gaspar, M Gasparini, U Gavillet, P Gazis, EN Gele, D and Gerdyukov, L Ghodbane, N Gil, I Glege, F Gokieli, R and Golob, B Gomez-Ceballos, G Goncalves, P Caballero, IG and Gopal, G Gorn, L Gorski, V Gouz, Y Gracco, V Grahl, J Graziani, E Green, C Grimm, HJ Gris, P Grosdidier, G Grzelak, K Gunther, M Guy, J Hahn, F Hahn, S and Haider, S Hallgren, A Hamacher, K Hansen, J Harris, FJ and Hedberg, V Heising, S Hernandez, JJ Herquet, P Herr, H Hessing, TL Heuser, JM Higon, E Holmgren, SO Holt, PJ Hoorelbeke, S Houlden, M Hrubec, J Huet, K and Hughes, GJ Hultqvist, K Jackson, JN Jacobsson, R and Jalocha, P Janik, R Jarlskog, C Jarlskog, G Jarry, P and Jean-Marie, B Johansson, EK Jonsson, P Joram, C Juillot, P Kapusta, F Karafasoulis, K Katsanevas, S Katsoufis, EC and Keranen, R Kersevan, BP Khomenko, BA Khovanski, NN and Kiiskinen, A King, B Kinvig, A Kjaer, NJ Klapp, O and Klein, H Kluit, P Kokkinias, P Koratzinos, M and Kostioukhine, V Kouznetsov, O Krammer, M Kriznic, E and Krstic, P Krumstein, Z Kubinec, P Kucewicz, W Kurowska, J Kurvinen, K Lamsa, JW Lane, DW Langefeld, P Lapin, V Laugier, JP Lauhakangas, R Leder, G Ledroit, F and Lefebure, V Leinonen, L Leisos, A Leitner, R Lemonne, J and Lenzen, G Lepeltier, V Lesiak, T Lethuillier, M and Libby, J Liko, D Lipniacka, A Lippi, I Loerstad, B and Loken, JG Lopes, JH Lopez, JM Lopez-Fernandez, R Loukas, D Lutz, P Lyons, L MacNaughton, J Mahon, JR Maio, A and Malek, A Malmgren, TGM Malychev, V Mandl, F Marco, J and Marco, R Marechal, B Margoni, M Marin, JC Mariotti, C Markou, A Martinez-Rivero, C Martinez-Vidal, F Garcia, SHI Masik, J Mastroyiannopoulos, N Matorras, F and Matteuzzi, C Matthiae, G Mazzucato, F Mazzucato, M Mc Cubbin, M Mc Kay, R Mc Nulty, R Mc Pherson, G Meroni, C and Meyer, WT Miagkov, A Migliore, E Mirabito, L and Mitaroff, WA Mjoernmark, U Moa, T Moch, MC Moeller, R and Moenig, K Monge, MR Moreau, X Morettini, PM Morton, G Mueller, U Muenich, K Mulders, M Mulet-Marquis, C and Muresan, R Murray, WJ Muryn, B Myatt, G Myklebust, T and Naraghi, F Navarria, FL Navas, S Nawrocki, K Negri, P and Nemecek, S Neufeld, N Neumeister, N Nicolaidou, R and Nielsen, BS Nikolenko, M Nomokonov, V Normand, A Nygren, A Obraztsov, V Olshevski, AG Onofre, A Orava, R and Orazi, G Osterberg, K Ouraou, A Paganoni, M Paiano, S and Pain, R Paiva, R Palacios, J Palka, H Papadopoulou, TD Papageorgiou, K Pape, L Parkes, C Parodi, F and Parzefall, U Passeri, A Passon, O Pegoraro, M Peralta, L and Pernicka, M Perrotta, A Petridou, C Petrolini, A and Phillips, HT Pierre, F Pimenta, M Piotto, E Podobnik, T and Pol, ME Polok, G Poropat, P Pozdniakov, V Privitera, P Pukhaeva, N Pullia, A Radojicic, D Ragazzi, S and Rahmani, H Rakoczy, D Ratoff, PN Read, AL Rebecchi, P and Redaelli, NG Regler, H Reid, D Reinhardt, R Benton, PB Resvanis, LK Richard, F Ridky, J Rinaudo, G and Rohne, O Romero, A Ronchese, P Rosenberg, EI Rosinsky, P and Roudeau, P Rovelli, T Royon, C Ruhlmann-Kleider, V and Ruiz, A Saarikko, H Sacquin, Y Sadovsky, A Sajot, G and Salt, J Sampsonidis, D Sannino, M Schneider, H and Schwemling, P Schwickerath, U Schyns, MAE Scuri, F and Seager, P Sedykh, Y Segar, AM Sekulin, R Shellard, RC and Sheridan, A Siebel, M Simard, L Simonetto, F and Sisakian, AN Smadja, G Smirnova, O Smith, GR Sololov, A and Solovianov, O Sopczak, A Sosnowski, R Spassov, T and Spiriti, E Sponholz, P Squarcia, S Stanescu, C Stanic, S and Stevenson, K Stocchi, A Strauss, J Strub, R Stugu, B and Szczekowski, M Szeptycka, M Tabarelli, T Tegenfeldt, F and Terranova, F Thomas, J Timmermans, J Tinti, N and Tkatchev, LG Todorova, S Tomaradze, A Tome, B Tonazzo, A and Tortora, L Transtromer, G Treille, D Tristram, G and Trochimczuk, M Troncon, C Tsirou, A Turluer, ML Tyapkin, IA Tzamarias, S Ueberschaer, B Ullaland, O Uvarov, V and Valenti, G Vallazza, E Van Apeldoorn, GW Van Dam, P Van Eldik, J Van Lysebetten, A Van Vulpen, I Vassilopoulos, N and Vegni, G Ventura, L Venus, W Verbeure, F Verlato, M and Vertogradov, LS Verzi, V Vilanova, D Vitale, L and Vlasov, E Vodopyanov, AS Vollmer, C Voulgaris, G Vrba, V and Wahlen, H Walck, C Weiser, C Wicke, D Wickens, JH and Wilkinson, GR Winter, M Witek, M Wolf, G Yi, J and Yushchenko, O Zalewska, A Zalewski, P Zavrtanik, D and Zevgolatakos, E Zimin, NI Zucchelli, GC Zumerle, G and DELPHI Collaboration
Subjects: Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Experiment
Abstract: The four-jet events collected by DELPHI during the special LEP run at centre-of-mass energies of 130 and 136 GeV in 1997 with an integrated luminosity of 5.9 pb(-1) are analysed. Their rate and the distributions of their di-jet masses, their smallest jet charges, and their di-jet charge separations all agree well with Standard Model predictions. Thus the hypothesis of pair production of a new particle with a sum of di-jet masses around 105 GeV/c(2) is not supported. The combined result of the four LEP collaborations refuting this hypothesis at over 99% confidence level is also given. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
Published: 1999

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

Publication Type

Journal

Database

Publisher

188 results on '"Tkatchev LG"'

Search Results

Catalog

Select search scope, currently: Articles

Catalog

books, media & more in Jio Institute collections

Articles

journal articles & other e-resources