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1. Measurement of the lifetime of tau-lepton

Author: U. Mjoernmark, Edoardo Castelli, F. Pierre, P. Allen, G. W. Van Apeldoorn, R. J. Apsimon, L. Ventura, V. Ruhlmann, Roland Horisberger, L. Bugge, D. Z. Toet, G. Hamel de Monchenault, Andrey Korytov, G. Ekspong, Itzhak Roditi, Gueorgui Chelkov, Pierre Juillot, M. De Beer, M. Bonesini, Y. Sacquin, Josef Strauss, M.A. Lopez Aguera, Francesca Romana Cavallo, Hans Muller, B. Koene, J.A.M.A. Buytaert, W. Venus, L. Di Ciaccio, Jan Krolikowski, N. N. Khovanski, Mitchell Wayne, M. S. Bilenky, G. Tristam, L.J. Carroll, W. Bartl, R. Pain, P. N. Bogolubov, M. J. Bates, J. A. Valls Ferrer, Giovanni Darbo, Christine Kourkoumelis, P. Siegrist, V. V. Lapin, N. Crosland, S. Simonetti, M. Begalli, E. Dahl-Jensen, Paolo Morettini, J. G. Loken, C. De Clercq, Klaus Hamacher, J. P. Laugier, Natale Demaria, R. Lucock, M. Richardson, G. Meola, Toralf Bernhard Skaali, M. Boratav, D. Gamba, P. Beilliere, M. Battaglia, T. Bolognese, W. J. Murray, R. Strub, J-C. Marin, Spyros Tzamarias, G. Cosme, A. Perrotta, G. Borisov, George Kalkanis, P. B. Renton, G. Voulgaris, M. Pimenta, B. A. Khomenko, M. Baubillier, V. Canale, S. Gumenyuk, R. A. Brenner, Stavros Maltezos, M. Bonapart, O. Barring, Y. Dufour, P. D. Dauncey, Sandor Czellar, D. C. Fries, Patrick Jarry, S. J. Alvsvaag, C. Vander Velde, N. De Groot, G. Rinaudo, G. Sette, A. Elliot Peisert, A. Stocchi, Francesco Navarria, J. Zúñiga, P. Astier, W. Bonivento, P. Weilhammer, A. M. Zaitsev, Alexander Vodopyanov, F. Bianchi, G. Vegni, N. Brummer, J. Bjarne, P. O. Hulth, T. Tabarelli, P. Van Dam, M. Davenport, G. Polok, A. Ruiz, Winfried Mitaroff, E. Lieb, P. Antilogus, C. Lambropoulos, Ugo Amaldi, W. De Boer, E. Zevgolatakos, G. Matthiae, Marta Calvi, P. Delpierre, I. Herbst, M. Matveev, R. Mc Nulty, I. Lippi, W. Kucewicz, E. K. Johansson, J. Pyyhtia, Geoffrey Smith, D. Johnson, Louis Lyons, W. Klempt, Renato Turchetta, H. De Boeck, S. Tavernier, G. Wormser, E. Daubie, G. E. Theodosiou, Mogens Dam, D. Fassouliotis, Ariella Cattai, F. Couchot, M. Kopf, M. Tyndel, S. C. Blyth, O. Pingot, G. Wilkinson, M.D.M. De Fez Laso, Juan Fuster, Jacques Lemonne, J. Sanchez, C. Bosio, E.N. Tsyganov, J. H. Wickens, Jose Luis Contreras, T. Kreuzberger, J. Derkaoui, S. Braibant, S. Dagoret, F. Stichelbaut, D. Zavrtanik, A. Tilquin, S. O. Holmgren, L. S. Vertogradov, J. Maillard, M. T. Trainor, P. Vaz, R. Sosnowski, O. Ullaland, Leif J. Jönsson, G. Myatt, F. Adami, V. G. Timofeev, A. G. Frodesen, Pawel Jalocha, Barry King, G. Smadja, L. Mathis, D. Husson, Ugo Gasparini, A. Pullia, J.M. Gago, D. Bertrand, J. Timmermans, I. A. Tyapkin, B.D. Hyams, T. S. Spassoff, Torsten Paul Ake Åkesson, Demetrios Loukas, R. Keranen, Philippe Charpentier, Francisco Matorras, N. Yamdagni, U. Trevisan, H. Furstenau, R. Frühwirth, L. O. Eek, R. C. Shellard, Josef Hrubec, A. M. Segar, A. G. Olshevski, B. Boštjančič, V. Perevozchikov, Theodora Papadopoulou, B. Korzen, Jon Christopher Wikne, C. Defoix, E. I. Rosenberg, A. Campion, S. Volponi, B. Dalmagne, F. Fulda-Quenzer, H. P. Borner, Stefan Schael, A. Lipniacka, Paul Baillon, Alexander Lincoln Read, M. Szeptycka, Tiziano Camporesi, A.J. Camacho Rozas, Abdenour Lounis, M.-H. Gros, Laurent Chevalier, M. Fernandez Alonso, D. Radojicic, V. Obraztsov, Jan Ridky, P. Folegati, Z. Hajduk, K. Kurvinen, Maciej Górski, W. Ruckstuhl, Borge Svane Nielsen, J. J. Lozano, Guido Barbiellini, R. Zukanovich Funchal, B. Franek, H. Wahlen, Ariel Goobar, E. Graziani, P. S. Iversen, F. Fontanelli, Maria Roberta Monge, A. Zalewska, Krzysztof Doroba, N. G. Redaelli, R. Moeller, A. Hakansson, Chiara Meroni, J. H. Koehne, Marco Bozzo, T. Hofmokl, Marek Szczekowski, J. M. Brunet, H. Foeth, Roberto Cirio, I. Roncagliolo, L. K. Resvanis, J. E. Hooper, J. Guy, P. Lutz, W. Krupinski, W. T. Meyer, P. V. Chliapnikov, Tord Ekelof, H. Staeck, D. Benedic, P. Abreu, P. Borgeaud, J. P. Gerber, Tim Adye, E. Rosso, H. Klein, P. Beltran, Peter Kluit, F. Naraghi, P. Frenkiel, K. H. Becks, E. Vallazza, Milos Lokajicek, J. Cuevas Maestro, A. Chan, B. Ueberschaer, Massimo Caccia, H. J. Hilke, D. J. Holthuizen, F. Waldner, S. Haider, Antonio Ferrer, Tuure Tuuva, F. Simonetto, F. Kapusta, K. W. Glitza, Clara Troncon, G. Leder, B. Åsman, W.S.C. Williams, J.-E. Augustin, F. Ledroit, E.N. Gazos, M. Schaeffer, B. Loerstad, Eilam Gross, B. Nijjhar, E. Menichetti, Stefano Ragazzi, K. Furnival, C. Walck, A. De Angelis, P. Collins, D. Delikaris, Vladimir Nikolaenko, C. Caso, J. Drees, Fernand Grard, A. Passeri, D. Crennell, F. Mandl, T. Todorov, H. Burmeister, N. van Eijndhoven, J. Werner, L. Tortora, F. J. Harris, C. De La Vaissiere, C. J. Beeston, Daniel Bloch, F. Cao, Ahmimed Ouraou, Wolfgang Adam, M. L. Turluer, B. W. Heck, M. Mazzucato, P. Szymanski, Robert S. Brown, V.M. Golovatyuk, Carlos Lacasta, K. D. Brand, N. I. Zimin, Krzysztof A. Rybicki, H. B. Crawley, D. Isenhower, A. Pinsent, D. Wormald, K. Woschnagg, A. De Min, Joao Varela, V. Falaleev, M. Dracos, J. J. Gomez Y Cadenas, V. Chorowicz, D. Reid, Yu. Belokopytov, S. Squarcia, Matteo Pegoraro, E. C. Katsoufis, G. Gopal, E. G. Anassontzis, R. Holmes, H. Saarikko, M. Voutilainen, G. Grosdidier, W. Dulinski, K. A. J. Forbes, S. D. Hodgson, S. Ueberschaer, G. Galeazzi, J. P. Engel, P. Bambade, K. Moenig, M. V. Castillo Gimenez, E. J. Sanchez, M. Crozon, T. Buran, Gianni Zumerle, P. Roudeau, Alessandra Romero, J. Kesteman, A. Maltezos, G. Damgaard, F. Verbeure, C. Bricman, M. A E Schyns, Martino Margoni, P. F. Honore, E. Fokitis, G. D. Alekseev, Olga Botner, M. Michelotto, V. Gracco, Pavlos Ioannou, Krzysztof Korcyl, A. N. Sissakian, R. Llosa, Claudia J. Stubenrauch, Carmen García, B. Jean-Marie, Mario Sannino, Eleuterio Spiriti, P. Poropat, Andromachi Tsirou, M. A. Houlden, M. Mc Cubbin, K. Hultqvist, Georgios Stavropoulos, P. David, Andre Augustinus, W. K. Van Doninck, F. Richard, W.-D. Apel, C. Matteuzzi, M. Hahn, D. Vilanova, S. Almehed, F. Hahn, S. Marti, U. Kruener-Marquis, Paolo Ronchese, N. J. Kjaer, Paula Eerola, Lucio Cerrito, M. A. Winter, G. E. Kalmus, H. Palka, G. Skjevling, J. W. Lamsa, F. Barao, T. Henkes, B. De Lotto, G. Crosetti, Evgueni Vlasov, E. Higon, R. Seufert, H. Herr, F. Scuri, A. M. Wetherell, L. G. Tkatchev, Jmv Garcia, L. Lanceri, A. Firestone, M. Vollmer, U. Rossi, Paolo Giacomelli, R. Sekulin, S. Delorme, M. Zito, J. J. Hernandez, T. Moa, G. Maehlum, B. Grossetete, Allan Hallgren, Giovanni Valenti, Antonio Baroncelli, Guenakh Mitselmakher, Fares Djama, José Salt, L. Vibert, M. Jonker, William Trischuk, A. Markou, Cristian Stanescu, P. Branchini, H. Schneider, R. Lauhakangas, Tiziano Rovelli, Mikael Berggren, G. Kantardjian, M. Sessa, M. Los, V. Lepeltier, M. Donszelmann, H. Forsbach, C. Ronnqvist, Paolo Checchia, G. Zhang, A. P. Ostankov, Ph. Gavillet, R. Gokieli, Dietrich Liko, P. Privitera, V. Kostukhin, R. Zitoun, M. Turala, Luc Pape, P. Herquet, R. Contri, Piotr Zalewski, U. Nau-Korzen, Manolis Dris, E. Lillethun, V.A. Uvarov, Daniel Treille, J. N. Jackson, P. Kokkinias, J. Lindgren, Nikita Smirnov, F. Carena, Pierre Billoir, M. Pernicka, I. Hietanen, Jose M. Benlloch, A. Grant, Vaclav Vrba, Hans Dijkstra, G. Lenzen, J. E. Campagne, M. Koratzinos, P. Negri, J.H. Bibby, Göran Jarlskog, A. Letessier-Selvon, J. Dolbeau, P.S.L. Booth, P. N. Ratoff, A. Lopez-Fernandez, J. Marco, M. P. Clara, Maria Elena Pol, S. Katsanevas, D. Y. Bardin, T. A. Filippas, M. Regler, P. Yepes, H. Mueller, C. O. Higgins, B. Bouquet, R. Orava, A. Klovning, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), L3, Acciarri, M., Achard, P., Adriani, O., Aguilar Benitez, M., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, Alberto, Alviggi, Mariagrazia, Ambrosi, G., Anderhub, H., Andreev, V. P., Angelescu, T., Anselmo, F., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Bajo, A., Baksay, L., Balandras, A., Banerjee, S., Barczyk, A., Barillere, R., Barone, L., Bartalini, P., Basile, M., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Bellucci, L., Berbeco, R., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Bhattacharya, S., Biasini, M., Biland, A., Blaising, J. J., Blyth, S. C., Bobbink, G. J., Bohm, A., Boldizsar, L., Borgia, B., Bourilkov, D., Bourquin, M., Braccini, S., Branson, J. G., V, B., Brochu, F., Buffini, A., Buijs, A., Burger, J. D., Burger, W. J., Cai, X. D., Campanelli, M., Capell, M., Romeo, G. C., Carlino, G., Cartacci, A. M., Casaus, J., Castellini, G., Cavallari, F., Cavallo, N., Cecchi, C., Cerrada, M., Cesaroni, F., Chamizo, M., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chiefari, Giovanni, Cifarelli, L., Cindolo, F., Civinini, C., I, C., Clare, R., Coignet, G., Colijn, A. P., Colino, N., Costantini, S., Cotorobai, F., Cozzoni, B., B. d., La, Csilling, A., Cucciarelli, S., Dai, T. S., Van, J. A., D'Alessandro, R., Asmundis, R. d., Deglon, P., Degre, A., Deiters, K., DELLA VOLPE, Domenico, Denes, P., Denotaristefani, F., Salvo, A. D., Diemoz, M., Dierendonck, D. v., Lodovico, F. D., Dionisi, C., Dittmar, M., Dominguez, A., Doria, A., Dova, M. T., Duchesneau, D., Dufournaud, D., Duinker, P., I, D., Mamouni, H. E., Engler, A., Eppling, F. J., Erne, F. C., Extermann, P., Fabre, M., Faccini, R., Falagan, M. A., Falciano, S., Favara, A., Fay, J., Fedin, O., Felcini, M., Ferguson, T., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., I, F., Forconi, G., Fredj, L., Freudenreich, K., Furetta, C., Galaktionov, Y., Ganguli, S. N., Garcia Abia, P., Gataullin, M., Gau, S. S., Gentile, S., Gheordanescu, N., Giagu, S., Gong, Z. F., Grenier, G., Grimm, O., Gruenewald, M. W., Guida, M., Gulik, R. v., Gupta, V. K., Gurtu, A., Gutay, L. J., Haas, D., Hasan, A., Hatzifotiadou, D., Hebbeker, T., Herve, A., Hidas, P., Hirschfelder, J., Hofer, H., Holzner, G., Hoorani, H., Sr, H., Hu, Y., I, I., Jin, B. N., Jones, L. W., Jong, P. d., I, J., Khan, R. A., Kaur, M., Kienzle Focacci, M. N., Kim, D., Kim, J. K., Kirkby, J., Kiss, D., Kittel, W., Klimentov, A., Konig, A. C., Kopp, A., V, K., Kraber, M., Kraemer, R. W., Krenz, W., Kruger, A., Kunin, A., P. L., De, I, L., Landi, G., Lassila Perini, K., Lebeau, M., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Coultre, P. L., Lee, H. J., J. M., Le, Leiste, R., Leonardi, E., Levtchenko, P., Li, C., Lokhoded, S., Lin, C. H., Lin, W. T., Linde, F. L., Lista, L., Liu, Z. A., Lohmann, W., Longo, E., Y. S., Lu, Lubelsmeyer, K., Luci, C., Luckey, D., Lugnier, L., Luminari, L., Lustermann, W., W. G., Ma, Maity, M., Malgeri, L., Malinin, A., Mana, C., Mangeol, D., Mans, J., Marchesini, P., Marian, G., Martin, J. P., Marzano, F., G. G. G., Mazumdar, K., Mcneil, R. R., Mele, S., Merola, Leonardo, Meschini, M., Metzger, W. J., Der, M. v., Mihul, A., Milcent, H., Mirabelli, G., Mnich, J., Mohanty, G. B., Molnar, P., Monteleoni, B., Moore, R., Moulik, T., Muanza, G. S., Muheim, F., A. J. M., Musy, M., Napolitano, Marco, Nessi Tedaldi, F., Newman, H., Niessen, T., Nisati, A., Nowak, H., Organtini, G., Oulianov, A., Palomares, C., Pandoulas, D., Paoletti, S., Paolucci, P., Paramatti, R., Park, H. K., Park, I. H., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pedace, M., Pensotti, S., Perret Gallix, D., Petersen, B., Piccolo, D., Pierella, F., Pieri, M., Piroue, P. A., Pistolesi, E., V, P., Pohl, M., Postema, H., Pothier, J., Produit, N., Prokofiev, D. O., Prokofiev, D., Quartieri, J., Rahal Callot, G., Rahaman, M. A., Raics, P., Raja, N., Ramelli, R., Rancoita, P. G., Raspereza, A., Raven, G., Razis, P., Ren, D., Rescigno, M., Reucroft, S., Rhee, T. v., Riemann, S., Riles, K., Robohm, A., Rodin, J., Roe, B. P., Romero, L., Rosca, A., Rosier Lees, S., Rubio, J. A., Ruschmeier, D., Rykaczewski, H., Saremi, S., Sarkar, S., Salicio, J., Sanchez, E., Sanders, M. P., Sarakinos, M. E., Schafer, C., V, S., Schmidt Kaerst, S., Schmitz, D., Schopper, H., Schotanus, D. J., Schwering, G., Sciacca, Crisostomo, Sciarrino, D., Seganti, A., Servoli, L., Shevchenko, S., Shivarov, N., Shumilov, E., Shvorob, A., Siedenburg, T., Son, D., Smith, B., Spillantini, P., Steuer, M., Stickland, D. P., Stone, A., Stoyanov, B., Straessner, A., Sudhakar, K., Sultanov, G., Sun, L. Z., Suter, H., Swain, J. D., Szillasi, Z., Sztaricskai, T., Tang, X. W., Tauscher, L., Taylor, L., Tellili, B., Timmermans, C., S. C. C., Ting, S. M., Tonwar, S. C., Toth, J., Tully, C., Tung, K. L., Uchida, Y., Ulbricht, J., Valente, E., Vesztergombi, G., I, V., Vicinanza, D., Viertel, G., Villa, S., Vivargent, M., Vlachos, S., Vogel, H., Vogt, H., Vorobyov, A. A., Vorvolakos, A., Wadhwa, M., Wallraff, W., Wang, M., Wang, X. L., Wang, Z. M., Weber, A., Weber, M., Wienemann, P., Wilkens, H., S. X., Wu, Wynhoff, S., Xia, L., Z. Z., Xu, Yamamoto, J., Yang, B. Z., Yang, C. G., Yang, H. J., Yang, M., J. B., Ye, Yeh, S. C., Zalite, A., Zalite, Y., Zhang, Z. P., Zhu, G. Y., Zhu, R. Y., Zichichi, A., Ziegler, F., Zilizi, G., Zoller, M., L3 (IHEF, IoP, FNWI), LEP (IHEF, IoP, FNWI), Achard, Pablo, Ambrosi, Giovanni, Bourquin, Maurice, Braccini, Saverio, Chamizo Llatas, Maria, Deglon, Patrick, Extermann, Pierre, Field, John, Kienzle, Maria-Novella, Pohl, Martin, Sciarrino, Deborah, Aguilarbenitez, M., Ahlen, S., Alpat, B., Alverson, G., Antreasyan, D., Ball, R. C., Banicz, K., Baschirotto, A., Bilei, G. M., Bock, R., Boucham, A., Boutigny, D., Brigljevic, V., Brock, I. C., Busenitz, J., Buytenhuijs, A., Caria, M., Chan, A., Cheng, H. S., Chen, M., Chien, C. Y., Choi, M. T., Clare, I., Cohn, H. O., Cotorbai, F., Delacruz, B., Dalessandro, R., Deasmundis, R., Deboeck, H., Dibitonto, D., Vandierendonck, D., Dilodovico, F., Dorne, I., Drago, E., Duran, I., Dutta, S., Easo, S., Efremenko, Y., Elmamouni, H., Ernenwein, J. P., Fenyi, B., Fernandez, D., Garciaabia, P., Gerald, J., Goldfarb, S., Goldstein, J., Gougas, A., Gratta, G., Hangarter, K., Hartmann, B., Vanhoek, W. C., Hou, S. R., Hu, G., Innocente, V., Janssen, H., Dejong, P., Josamutuberria, I., Kasser, A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kienzlefocacci, M. N., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirkby, A., Kirkby, D., Korolko, I., Koutsenko, V., Kuijten, H., Deguevara, P. L., Lapoint, C., Lassilaperini, K., Laurikainen, P., Lecoultre, P., Lee, J. S., Lee, K. Y., Leggett, C., Legoff, J. M., Lieb, E., Lu, W., Lustemann, W., Majumder, G., Mangla, S., Marin, A., Mcnally, D., Vondermey, M., Mi, Y., A. J. W., Morganti, S., Mount, R., Muller, S., Nagy, E., Nahn, S., Nessitedaldi, F., Nippe, A., Ostonen, R., Peach, D., Pei, Y. J., Perretgallix, D., Petrak, S., Pevsner, A., Pinto, J. C., Plyaskin, V., Pojidaev, V., Rahalcallot, G., Rattaggi, M., Read, K., Vanrhee, T., Riemers, B. C., Rind, O., Ro, S., Rodriguez, F. J., Rohner, J. A., Santocchia, A., Sassowsky, M., Sauvage, G., Schegelsky, V., Schmidtkaerst, S., Schmitz, P., Schneegans, M., Sens, J. C., Shoutko, V., Shukla, J., Sopczak, A., Soulimov, V., Stone, H., Strauch, K., Susinno, G. F., Uwer, U., Vandewalle, R. T., Vetlitsky, I., Volkert, R., Vorobiev, I., Wang, J. C., Wittgenstein, F., Xu, J., Yao, X. Y., You, J. M., Zemp, P., Zeng, Y., Zhang, Z., Zhou, B., and Zhou, Y.
Subjects: COLLISIONS, Nuclear and High Energy Physics, Particle physics, LUND MONTE-CARLO, PAIR PRODUCTION, Electron–positron annihilation, FOS: Physical sciences, Elementary particle, ddc:500.2, 01 natural sciences, 7. Clean energy, Resonance (particle physics), JET FRAGMENTATION, DECAYS, High Energy Physics - Experiment, Nuclear physics, Particle decay, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], SILICON MICROVERTEX DETECTOR, PRECISE MEASUREMENT, Limit (mathematics), QCD ANALYSIS, 010306 general physics, L3 EXPERIMENT, Coupling constant, Physics, Muon, Annihilation, TEST BEAM, E+E-PHYSICS, 010308 nuclear & particles physics, ALPHA(S), High Energy Physics::Phenomenology, Detector, Pair production, SPECTRAL FUNCTIONS, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, High Energy Physics::Experiment, Particle Physics - Experiment, Lepton
Abstract: The tau lepton lifetime is measured with the L3 detector at LEP using the complete data taken at centre-of-mass energies around the Z pole resulting in tau_tau = 293.2 +/- 2.0 (stat) +/- 1.5 (syst) fs. The comparison of this result with the muon lifetime supports lepton universality of the weak charged current at the level of six per mille. Assuming lepton universality, the value of the strong coupling constant, alpha_s is found to be alpha_s(m_tau^2) = 0.319 +/- 0.015(exp.) +/- 0.014 (theory). The tau lepton lifetime is measured with the L3 detector at LEP using the complete data taken at centre-of-mass energies around the Z pole resulting in τ τ =293.2 ± 2.0 (stat) ± 1.5 (syst) fs . The comparison of this result with the muon lifetime supports lepton universality of the weak charged current at the level of six per mille. Assuming lepton universality, the value of the strong coupling constant, α s is found to be α s ( m τ 2 ) = 0.319 ± 0.015 (exp) ± 0.014 (theory). The tau lepton lifetime is measured with the L3 detector at LEP using the complete data taken at centre-of-mass energies around the Z pole resulting in tau_tau = 293.2 +/- 2.0 (stat) +/- 1.5 (syst) fs. The comparison of this result with the muon lifetime supports lepton universality of the weak charged current at the level of six per mille. Assuming lepton universality, the value of the strong coupling constant, alpha_s is found to be alpha_s(m_tau^2) = 0.319 +/- 0.015(exp.) +/- 0.014 (theory).
Published: 2015

2. Measurement of the partial width of the decay of the Z0 into charm quark pairs

Author: U. Kruener-Marquis, M. L. Turluer, D. Reid, D. Bertrand, P. Siegrist, P. Vaz, I. Lippi, J-C. Marin, P. Lutz, E. K. Johansson, D. Bollini, P. B. Renton, W. S. C. Williams, Spyros Tzamarias, P. Poropat, Andromachi Tsirou, P. V. Chliapnikov, Andre Augustinus, A. Wehr, Edoardo Castelli, D. Radojicic, E. Menichetti, E. Fokitis, Paula Eerola, D.N. Edwards, S. Biagi, Tiziano Rovelli, M. Cresti, S. Gawne, Wolfgang Adam, M. Davenport, J. Pyyhtia, R. Keranen, L. Paper, E. I. Rosenberg, P. Frenkiel, A. Passeri, V.A. Uvarov, A. M. Segar, V. Nikolaenko, G. Trustram, Tord Ekelof, H. Staeck, P. Kapusta, G. E. Kalmus, M. Kostrikov, F. Grard, V. Vrba, S. Squarcia, F. Cao, E. N. Gazis, B. Korzen, R.B. Kadyrov, Bengt Lund-Jensen, G. Ekspong, Giovanni Darbo, F. Couchot, A. A. Rademakers, W. T. Meyer, Anthony Lincoln Read, A. P. Ostankov, J. Bjarne, H. Palka, Itzhak Roditi, Natale Demaria, Gueorgui Chelkov, A. Ruiz, G. R. Wilkinson, C. Vander Velde, Wojciech Kucewicz, L. Tortora, T. Tuuva, J. N. Jackson, S. O. Holmgren, M. Szczekowski, G. Galeazzi, A. Ferrer, L. S. Vertogradov, Borge Svane Nielsen, H. Burmeister, F. Barao, Roberto Cirio, L. K. Resvanis, F. Simonetto, E. Lieb, J. J. Lozano, M. H. Gros, U. Nnau-Lorzen, M. S. Bilenky, S. Ferroni, P. Bambade, K. Kurvinen, P.S.L. Booth, J. Lindgren, L.J. Carroll, W. Klempt, L. Lyons, O. Doll, Krzysztof Doroba, George Kalkanis, Chiara Meroni, Robert S. Brown, Tiziano Camporesi, Klaus Hamacher, M. Bonapart, Massimo Caccia, J. G. Loken, S. D. Hodgson, C. Bricman, A. Pullia, M. I. Laakso, L. O. Eek, R. C. Shellard, Josef Hrubec, M. A. Winter, S. Simonetti, J. Maillard, T. A. Filippas, T. Hofmokl, S. Gumenyuk, R. A. Brenner, Ariella Cattai, P. Ronschese, D. Benedic, E. Higon, R. Seufert, F. Scuri, J. Sanxhez, A. M. Wetherell, Th. D. Papadopoulou, J. H. Bibby, Pierre Billoir, G. Cosme, A. Baroncelli, Marco Bozzo, M. J. Bates, B. De Lotto, Guenakh Mitselmakher, G. Crosetti, S. J. Alvsvaag, Leif J. Jönsson, Ugo Gasparini, D. C. Fries, P. Weilhammer, I. Belokopytov, D. Husson, I. A. Tyapkin, T. S. Spassoff, A. Campion, M. Pegoraro, M. Pernicka, G. Lenzen, R. Strub, J. E. Campagne, M. Koratzinos, L. Lanceri, Paul Baillon, E. C. Katsoufis, G. Myatt, E. Graziani, Mikko Voutilainen, P. S. Iversen, F. Fontanelli, H. Furstenau, E. Sanchis, A. Lopez-Fernandez, Marta Calvi, L. Di Ciaccio, C. Defoix, P. Szymanski, A. Firestone, N. Redaelli, J. Marco, S. Ueberschaer, F. Waldner, H. Wahlen, Ariel Goobar, Ugo Amaldi, H. Forsbach, J. W. Lamsa, Guido Barbiellini, H. Herr, L. G. Tkatchev, Jose M. Benlloch, A. Grant, Mogens Dam, C. Lambropoulos, Patrick Jarry, G. Rinaudo, Clara Troncon, J. Guy, W. De Boer, Geoffrey Smith, E.N. Tsyganov, J. H. Wickens, W. Dulinski, Jose Luis Contreras, A. Fenyuk, J. H. Koehne, M. Pimenta, K. Woschnagg, B. A. Khomenko, A. De Min, A. Stocchi, Joao Varela, Hans Dijkstra, A. Markou, T. Buran, N. De Groot, P. Beltran, M. Vollmer, P. Delpierre, Tim Adye, W. D. Apel, B. Franek, P. Kluit, M. Mazzucato, U. Rossi, C. Walck, Paolo Giacomelli, J. E. Hooper, Francesco Navarria, L. Vibert, K. H. Becks, G. W. Van Apeldoorn, M. P. Clara, G. D. Alekseev, P. Negri, J. M. Brunet, M. Jonker, Pierre Astier, J. Zúñiga, M. Boratay, P. Abreu, P. Borgeaud, R. Sekulin, A. Zalewska, M. Baubillier, K. D. Brand, E. Vallazza, L. Ventura, G. Hamel de Monchenault, H. Schneider, Göran Jarlskog, Jan Ridky, L. Mathis, T. Moa, M.A. Lopez Aguera, M. Mc Cubbin, K. Hultqvist, H. Borner, C. Pinori, B.D. Hyams, Mikael Berggren, S. Ragazzi, A. Sebastia, Francesca Romana Cavallo, Josef Strauss, E. Lillethum, A. Letessier-Selvon, Mitchell Wayne, P. Zalewski, V. Lepeltier, G. Kantarjian, B. Grossetete, Allan Hallgren, Vegni, Giovanni Valenti, F. Udo, W. Venus, G. Maehlum, I. Herbst, V. Ruhlmann, Paolo Checchia, Jacques Lemonne, J. Velasco, E. Rosso, H. Klein, Ph. Gavillet, V. V. Lapin, Hans Muller, Fares Djama, V. Canale, N. K. Visnevskiy, C. De Clercq, F. Kapusta, L. Bugge, J. Drees, P. D. Dauncey, N. J. Kjaer, A. J. Camacho Rozas, G. Sette, M. Sessa, Maria Elena Pol, G. Leder, Alexander Vodopyanov, B. Åsman, G. Zumerle, L. Cerrito, F. Bianchi, P. N. Bogolubov, F. Ledroit, Kjell Fransson, S. Katsanevas, P. Privitera, D. Z. Toet, T. Kreuzberger, D. Vilanova, Christine Kourkoumelis, E. Dahl-Jensen, M. Schaeffer, D. Y. Bardin, P. Beilliere, D. Crennell, W. Van Doninck, P. N. Ratoff, Andrea Perrotta, F. Alted, J. Dolbeau, F. Mandl, G. Smadja, A. Klovning, Daniel Treille, Paul Allen, R. Lucock, R. Sosnowski, Olga Botner, Krzysztof Korcyl, A. Tilquin, Jorge-Armando Benitez Garcia, U. Mjoernmark, R. Gokieli, B. W. Heck, P.I. Zarubin, J. J. Hernandez, J. Cuevas Maestro, P. O. Hulth, P. Yepes, M. Regler, C. J. Beeston, J. Krolikowski, N. Magnussen, P. Herquet, H. De Boeck, V. Falaleev, E. Daubie, P. Laurikainen, M. De Beer, M. R. Monge, B. Jean-Marie, S. Braibant, S. Tavernier, M. Tyndel, M. Bonesini, J. A. M. A. Buytaert, Y. Gouz, N. Crosland, G. Gopal, Y. Sacquin, Andrey Korytov, R. Llosa, H. Mueller, J.M. Gago, H. Foeth, D. Wormald, R. Contri, M. Fernandez Alonso, T. Bolognese, E. J. Sanchez, R. Orava, U. Trevisan, R. Zukanovich Funchal, M. Szeptycka, W. Bartl, J. Wikne, N. Smirnov, V. Perevozchikov, J. A. Valls Ferrer, M. Turala, Manolis Dris, J. P. Gerber, Mario Sannino, K. W. Glitza, P. Roudeau, G. Skjevling, J. P. Laugier, F. Stichelbaut, A. De Angelis, D. Delikaris, R. Dzhelyadin, D. Gamba, C. Stanescu, R. Lauhakangas, N. van Eijndhoven, E. Zevgolatakos, G. Voulgaris, F. Verbeure, Daniel Bloch, Ahmimed Ouraou, V.M. Golovatyuk, Marcos Dracos, B. Bouquet, Juan Fuster, M. Kopf, B. Dalmagne, Laurent Chevalier, R. Zitoun, F. Fulda-Quenzer, P. Kokkinias, Milos Lokajicek, J. Kesteman, E. G. Anassontzis, J. P. Engel, M. V. Castillo Gimenez, G. Damgaard, O. Pingot, V. Gracco, H. Saarikko, Pavlos Ioannou, A.K. Topphol, Klaus Moenig, M. A. Houlden, G. Matthiae, W. A. Mitaroff, F. Richard, M. Hahn, F. Naraghi, V. G. Timofeev, S. Almehed, K. Spang, F. Hahn, C. Matteuzzi, E. Lillestol, G. Grosdidier, Alessandra Romero, I.A. Gritsaenko, J. E. Augustin, A. Zaitsev, S. Haider, A. N. Sissakian, Claudia J. Stubenrauch, Eleuterio Spiriti, C. Caso, H. B. Crawley, P. Morettini, Pierre Juillot, B. Koene, A.N. Diddens, D. Loukas, M. Crozon, R. Pain, V. Obraztsov, O. Barring, S. Dagoret, P. Van Dam, Renato Turchetta, C. De La Vaissiere, G. Zhang, Pawel Jalocha, Barry King, R. Frühwirth, J. Timmermans, P. Branchini, G. E. Theodosiou, M.D.M. De Fez Laso, R. Moeller, A. Pinsent, N. Yamdagni, M. T. Trainor, Sandor Czellar, N. Brummer, G. Wormser, Pieter David, W. H. Range, W. Krupinski, S. Maltezos, H. J. Hilke, J. Skeens, G. Stavropoulos, V. Chorowicz, R. Mc Kay, N. I. Zimim, F. Adami, Jürgen H. Werner, Philippe Charpentier, Francisco Matorras, T. B. Skaali, F. J. Harris, A. G. Frodesen, Z. Hajduk, Maciej Górski, A. Hakansson, C. Bosio, E. Vlasov, R. Holmes, Delphi, Collaboration, Abreu, P., Adam, W., and Canale, Vincenzo
Subjects: Nuclear and High Energy Physics, Particle physics, E+E ANNIHILATION, Meson, LUND MONTE-CARLO, Electron–positron annihilation, Hadron, 01 natural sciences, JET FRAGMENTATION, Charm quark, Standard Model, law.invention, Nuclear physics, PHYSICS, ENERGY, Pion, D-STAR-MESON, CROSS-SECTION, law, 0103 physical sciences, 010306 general physics, Collider, Nuclear Experiment, Boson, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Physique des particules élémentaires, Física nuclear, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: A determination of the partial width Γc̄ of the Z0 boson into charm quark pairs is presented, based on a total sample of 36 900 Z0 hadronic decays measured with the DELPHI detector at the LEP collider. The production rate of cc events is derived from the inclusive analysis of charged pions coming from the decay of charmed meson D*+-→D0π+ and D*-→D̄0π- where the π± is constrained by kinematics to have a low pT with respect to the jet axis. The probability to procedure these π± from D*± decay in cc events is taken to be 0.31±0.05 as measured at √S = 10.55 GeV. The measured relative partial width Γ∞/Γh = 0.162± 0.030(stat.) ± 0.050(syst.) is in good agreement with the standard model value of 0.171. Together with our previous measurement of the total hadronic width Γh this implies Γ∞ = 282 ± 53 (stat.) ± 88 (syst.) MeV., 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 2016

3. F, ϱ and ω production in collisions induced by deuteron and heavy ions around 200 GeV per nucleon

Author: A. De Falco, Rachid Mazini, Y. Le Bornec, O. Drapier, C. Barrière, H.R. Gulkanyan, Ermanno Vercellin, C. Soave, P. Saturnini, M. Mac Cormick, S. Silva, P. Petiau, Massimo Masera, E. Chiavassa, Ruben Shahoyan, W.L. Prado da Silva, R. Haroutunian, V. Capony, F.F. Guber, Paolo Giubellino, P. Sonderegger, G. Puddu, N. Willis, A. Devaux, M. P. Comets, T. Chambon, J. Castor, S. Mehrabyan, Brigitte Cheynis, S. Filippov, J.M. Gago, A. Bussiere, J. Guimara˜es, Petar Temnikov, P. Gorodestky, L. Fredj, X. Tarrago, J. Fargeix, A. Marzari-Chiesa, L. Casagrande, S. Beole, J. Astruc, S. Sartori, M.C. Abreu, B. Chaurand, S. Papillon, J.-Y. Grossiord, S. Serci, T.L. Karavitcheva, Y.K. Gavrilov, A. Baldit, S. Ramos, A. Romana, J.P. Guillaud, N. De Marco, R. Ferreira, C. Gerschel, C. Racca, Calin Alexa, Corrado Cicalo, B. Espagnon, Alexey Kurepin, P. Force, M. Bedjidian, A. Piccotti, Alberto Masoni, G. Dellacasa, R. Kossakowski, D. Jouan, S. Mourgues, Roberta Arnaldi, Enrico Scomparin, B. Grosdidier, M. Gonin, M.B. Golubeva, L. Riccati, I. Chevrot, T. Monteiro, R. Mandry, D. Lazic, F. Bellaiche, L. Ramello, L. Luquin, G. L. Usai, G. Landaud, Claude Charlot, R.A. Salmeron, A. Guichard, F. Ohlsson-Malek, C. Vale, C. Quintans, M. Atayan, C. Baglin, P. Rato-Mendes, Philippe Busson, P. Macciotta, Joao Varela, Bruno Alessandro, Marek Idzik, J.-R. Pizzi, François Fleuret, P. Bordalo, R. Hakobyan, João Cruz, Didier Contardo, B. Ronceux, Carlos Lourenco, L. Kluberg, N.S. Topilskaya, F. Vazeille, A. Musso, Serban Constantinescu, A.A. Grigorian, P. Liaud, E. Descroix, Sanda Dita, Mauro Gallio, A. Borhani, and V. Boldea
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Deuterium, Nucleon, Ion
Published: 1998

4. Muon pair and vector meson cross-sections in p-W and SU collisions at 200 GeV/nucleon

Author: R. Ferreira, Carlos Lourenco, A. Baldisseri, J. Fargeix, A. Romana, L. Kluberg, J. Castor, S. Papillon, B. Chaurand, Luis Peralta, C. Gerschel, X. Tarrago, Ph. Gorodetzky, A. Bussière, C. Racca, R. Kossakowski, J.M. Gago, E. Descroix, P. Bordalo, A. Devaux, P. Liaud, T. Chambon, O. Drapier, Rachid Mazini, G. Landaud, J.-R. Pizzi, Didier Contardo, S. Silva, M. Bedjidian, Joao Varela, M.C. Abreu, A. Guichard, B. Espagnon, C. Baglin, R. Haroutunian, P. Force, J.-Y. Grossiord, P. Sonderegger, J. P. Guillaud, S. Ramos, A. Baldit, and D. Jouan
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Muon, Pair production, Transverse momentum, Rapidity, Vector meson, Nucleon, Power law
Abstract: Muon pair production is studied in p-W and SU collisions at 200 GeV per nucleon, as a function of transverse momentum PTμμ. The inclusive ϱ+ω and Φ differential cross-sections dσ dP T are measured in the dimuon decay channel, for PT ≥ 0.6 GeV/c, in the central rapidity region, 3.0≤ y ≤ 4.0. Assuming the power law A-dependence σ = σ0(Abeam·Atarget)α, the study of the integrated cross-sections for p-W and SU collisions leads to αϱ+ω = 1.00±0.02±0.07 and αΦ = 1.23±0.03±0.05, showing clear evidence of Φ enhancement in SU interactions as compared to p-W collisions.
Published: 1996

5. Production of ϱ + ω and Φ in p-W and SU collisions at 200 GeV/nucleon

Author: B. Espagnon, C. Baglin, A. Romana, M.C. Abreu, S. Papillon, G. Landaud, Ph. Gorodetzky, S. Silva, J. Castor, X. Tarrago, A. Guichard, B. Chaurand, Joao Varela, O. Drapier, M. Bedjidian, C. Gerschel, R. Kossakowski, C. Racca, D. Jouan, S. Ramos, A. Baldit, A. Bussière, R. Ferreira, E. Descroix, P. Force, J. Fargeix, P. Sonderegger, J.-R. Pizzi, J.M. Gago, Didier Contardo, Luis Peralta, Carlos Lourenco, L. Kluberg, T. Chambon, Rachid Mazini, A. Baldisseri, P. Liaud, P. Bordalo, A. Devaux, J.-Y. Grossiord, J. P. Guillaud, and R. Haroutunian
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Transverse momentum, Energy density, Transverse mass, Rapidity, Nuclear Experiment, Nucleon
Abstract: The transverse mass differential cross-sections for the ϱ + ω and Φ resonances is obtained, in the central rapidity region, in p - W and S  U interactions at 200 GeV/nucleon. The measured ϱ + ω and Φ temperatures are ∼ 15% higher in S  U as compared to p - W collisions. The ratio of cross-sections times branching ratios into the dimuon channel B Φ σ Φ (B ϱ σ ϱ + B ω σ ω ) is studied as a function of the energy density reached in the collision and of the dimuon transverse momentum. The measured ratio is 2 to 3 times larger in S  U than in p - W collisions and an enhancement is observed in S  U interactions with increasing energy density.
Published: 1996

6. ψi and production in p-U and S-U collisions at 200

Author: J.-R. Pizzi, Ph. Gorodetzky, Bruno Espagnon, M.C. Abreu, X. Tarrago, F. Malek, Didier Contardo, A. Bussiere, Joao Varela, R.A. Salmeron, P. Sonderegger, C. Racca, A. Romana, R. Ferreira, A. Guichard, Carlos Lourenco, L. Luquin, L. Kluberg, P. Force, Francois Vazeille, J.-Y. Grossiord, B. Ronceux, P. Liaud, R. Kossakowski, E. Descroix, C. Barriere, T. Chambon, R. Haroutunian, J. Fargeix, S. Silva, D. Lazic, G. Landaud, D. Jouan, A. Baldit, C. Baglin, Luis Peralta, P. Bordalo, L. Fredj, A. Devaux, J. Castor, M. Bedjidian, B. Chaurand, J.M. Gago, O. Drapier, B. Grosdidier, C. Gersche, Rachid Mazini, J.P. Guillaud, R. Mandry, and S. Ramos
Subjects: Physics, Nuclear and High Energy Physics, Muon, Meson, 010308 nuclear & particles physics, Branching fraction, Hadron, Quarkonium, 01 natural sciences, Nuclear physics, Particle decay, Pair production, 0103 physical sciences, Atomic physics, 010306 general physics, Nucleon
Abstract: Production and decay into two muons of ψI and J/ψ mesons is studied in p-U and S-U interactions at 200 GeV/nucleon. The ratio Bmumuσ(ψl)/Bmumuσ(J/ψ is found to be 0.0201 ± 0.0044 ± 0.0020 in p-U and 0.0093 ± 0.0011 ± 0.0013 in S-U. For S-U interactions, this ratio decreases by about 40% with increasing transverse energy. Our p-U result confirms previous measurements which show that the relative production of ψt and J ψ in p-A interactions is independent of A. The results are discussed in the frame of QGP formation and final state absorption.
Published: 1994

7. ψ′ and muon pair production in p-W and S-U collisions

Author: F. Malek, Joao Varela, C. Racca, Bruno Espagnon, P. Sonderegger, L. Luquin, B. Ronceux, G. Landaud, Ph. Gorodetzky, X. Tarrago, C. Baglin, P. Liaud, C. Barriere, A. Baldit, J.-R. Pizzi, E. Descroix, P. Bordalo, R. Kossakowski, S. Ramos, A. Devaux, S. Silva, R. Haroutunian, M.C. Abreu, R.A. Salmeron, J. Castor, B. Grosdidier, J.M. Gago, T. Chambon, R. Ferreira, O. Drapier, A. Guichard, Francois Vazeille, J. Fargeix, A. Romana, R. Mandry, L. Fredj, Luis Peralta, J.-Y. Grossiord, Carlos Lourenco, L. Kluberg, Didier Contardo, Rachid Mazini, J.P. Guillaud, A. Bussiere, D. Jouan, D. Lazic, B. Chaurand, C. Gerschel, M. Bedjidian, and P. Force
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Muon, Meson, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Nuclear Theory, Hadron, Quarkonium, 01 natural sciences, Nuclear physics, Particle decay, Pair production, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Nucleon, Lepton
Abstract: In this paper we present a study on the production of the J ψ and ψ′ resonances, decaying into muon pairs, in S-U collisions, at 200 GeV per incident nucleon. We find that the ratio between ψ′ and tJ ψ yields decreases as E T , the neutral transverse energy produced in the collision, increases. There is also a clear decrease of this ratio when going from p-W to S-U interactions. Assuming the high mass continuum to be Drell-Yan we discuss the possible understanding of the intermediate dimuon mass region as a superposition of Drell-Yan (extrapolated down in mass) and muon pairs from the semileptonic decays of charmed mesons. The p-W data is found to be explained by this procedure. However, the S-U data seems to be incompatible with a linear extrapolation from the proton-nucleus results.
Published: 1994

8. Meson production inp+U, O+U and S+U interactions at 200 GeV/nucleon

Author: F. Staley, E. Descroix, A. Bussiere, C. Racca, P. Liaud, Philippe Busson, R.A. Salmeron, S. Ramos, M.C. Abreu, A. Baldit, S. Silva, A. Guichard, J. Castor, A. Baldisseri, Carlos Lourenco, L. Kluberg, J. P. Guillaud, R. Ferreira, D. Jouan, J.M. Gago, O. Drapier, C. Baglin, Ph. Gorodetzky, R. Kossakowski, Francois Vazeille, R. Cases, R. Haroutunian, G. Landaud, Claude Charlot, P. Bordalo, C. Barriere, M. Bedjidian, J. Fargeix, A. Devaux, J.-R. Pizzi, B. Chaurand, C. Gerschel, Luis Peralta, Didier Contardo, P. Force, T. Chambon, J.-Y. Grossiord, X. Felgeyrolles, Joao Varela, X. Tarrago, A. Romana, P. Sonderegger, L. Fredj, S. Papillon, and B. Grosdidier
Subjects: Physics, Nuclear reaction, Particle physics, Physics and Astronomy (miscellaneous), Proton, Meson, Nuclear Theory, Hadron, Elementary particle, Nuclear physics, Pion, Nuclear Experiment, Nucleon, Engineering (miscellaneous), Boson
Abstract: Meson production in proton, oxygen and sulphur interactions with uranium targets at 200 GeV/nucleon is studied. We measure the inclusive meson cross-section d σ/dPT2 and its evolution fromp+U to S+U. The cross-section fitted with an exponential gives an inverse slopePT0 of the order of 210 MeV/c. As a function of the neutral transverse energy,PT0 values show a slight rise followed by a plateau. The normalized difference (σ+−σ−)/σ− between positive and negative meson cross-sections is found to increase withET.
Published: 1992

9. Muon pair production in heavy ion interactions at 200 GeV per nucleon

Author: A. Bussiere, B. Chaurand, J.-R. Pizzi, R. Haroutunian, C. Gerschel, G. Landaud, A. Baldisseri, P. Liaud, J.-Y. Grossiord, X. Tarrago, M. Bedjidian, B. Grosdidier, A. Baldit, Carlos Lourenco, Didier Contardo, L. Kluberg, J.P. Guillaud, X. Felgeyrolles, P. Sonderegger, F. Staley, J. Castor, D. Jouan, Ph. Gorodetzky, R. Kossakowski, P. Bordalo, P. Force, Luis Peralta, S. Papillon, P. Busson, C. Racca, A. Devaux, A. Descroix, T. Chambon, S. Ramos, A. Romana, Claude Charlot, R.A. Salmeron, A. Guichard, O. Drapier, J.M. Gago, M.C. Abreu, Joao Varela, J. Fargeix, S. Silva, C. Baglin, L. Fredj, R. Ferreira, Francois Vazeille, and R. Cases
Subjects: Nuclear reaction, Physics, Nuclear and High Energy Physics, Muon, Quarkonium, Nuclear physics, Particle decay, Pair production, Effective mass (solid-state physics), High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, Nucleon, Lepton
Abstract: The NA38 experiment measures muon pair production in 200 GeV per nucleon nucleus-nucleus interactions at the CERN SPS. Dimuon production is studied as a function of the neutral transverse energy produced in the collisions, which reflects the energy density reached in the interaction. The J / ψ yield relative to muon pairs in the mass continuum decreases with increasing energy density. The atomic number dependence of the cross sections has been studied using the parametrization σ ∞ ( A proj . A targ . ) α which leads to α = 0.91 ± 0.04 for the J / ψ , and α = 1.01 ± 0.04 for muon pairs in the mass range [1.7, 2.7] GeV/c 2 . The study of dimuon transverse momentum distributions shows an enhancement of the J / ψ suppression for low P T values. The average values 〈P T 〉 and 〈P T 2 〉 increase with increasing transverse energy in case of the J / ψ , and are rather flat for muon pairs in the mass continuum. Such a behaviour is expected in case of quark-gluon plasma formation. However, a model based on parton multiple scattering in the initial state leads to a variation of 〈P T 2 〉 as a function of the mean thickness of nuclear matter encountered by the partons, which seems also to account for the observed effect. In addition, low mass dimuons are studied. An enhancement of the φ /( ϱ + ω ) ratio is observed with increasing energy density.
Published: 1992

10. φ, ϱ, and ω production in pU, OU and SU reactions at 200 GeV per nucleon

Author: Ph. Gorodetzky, B. Grosdidier, R. Ferreira, R. Kossakowski, G. Landaud, L. Fredj, S. Papillon, Francois Vazeille, A. Romana, R. Cases, Claude Charlot, E. Descroix, P. Bordalo, S. Ramos, M.C. Abreu, A. Baldit, X. Tarrago, F. Staley, A. Devaux, Philippe Busson, S. Silva, J. Castor, A. Guichard, P. Liaud, Luis Peralta, T. Chambon, P. Sonderegger, J. Fargeix, A. Baldisseri, D. Jouan, M. Bedjidian, C. Racca, R. Haroutunian, Joao Varela, A. Bussière, O. Drapier, Didier Contardo, C. Baglin, J.M. Gago, Carlos Lourenco, L. Kluberg, J.-R. Pizzi, X. Felgeyrolles, J.-Y. Grossiord, B. Chaurand, C. Gerschel, J. P. Guillaud, and P. Force
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Muon, 010308 nuclear & particles physics, Nuclear Theory, Hadron, Continuum (design consultancy), 7. Clean energy, 01 natural sciences, Ion, Nuclear physics, Pair production, Yield (chemistry), 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Nucleon, Low Mass
Abstract: Low mass muon pair production at high P T and low X F studied in pU, OU and SU 200 GeV per nucleon react ions. When energy density or projectile mass are increased, φ production is enhanced as compared with the yield of muon pairs in the mass continuum (1.7 M μμ c 2 ), whereas the production of ω and ϱ, experimentally unresolved, remains approximately constant. This φ enhancement is in agreement with predictions based on quark-gluon plasma formation and, together with the previously reported J/Ψ suppression, puts severe constraints on a purely hadronic description of nucleus-nucleus collisions.
Published: 1991

11. Initial state interactions and J/ψ production in nucleus-nucleus collisions

Author: F. Vazeille, Ph. Gorodetzky, A. Bussiere, C. Baglin, J.-R. Pizzi, Philippe Busson, S. Silva, M. Bedjidian, M.C. Abreu, O. Drapier, J. Fargeix, A. Romana, Joao Varela, L. Fredj, S. Papillon, A. Baldisseri, R. Haroutunian, Didier Contardo, R. Ferreira, J. Castor, Luis Peralta, G. Landaud, J.P. Guillaud, X. Tarrago, B. Chaurand, R. Kossakowski, C. Gerschel, C. Racca, A. Guichard, Carlos Lourenco, L. Kluberg, T. Chambon, J.M. Gago, P. Bordalo, F. Staley, Claude Charlot, A. Devaux, B. Grosdidier, S. Ramos, A. Baldit, P. Force, P. Sonderegger, J.-Y. Grossiord, C. Barriere, P. Liaud, D. Jouan, E. Descroix, Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), 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 Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-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), 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), ALICE, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), 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 Claude Bernard Lyon 1 (UCBL), NA38, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-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)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)
Subjects: Nuclear reaction, Physics, Nuclear and High Energy Physics, Quantitative Biology::Neurons and Cognition, Meson, 010308 nuclear & particles physics, Hadron, Elementary particle, Quarkonium, 01 natural sciences, Nuclear physics, medicine.anatomical_structure, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], 0103 physical sciences, medicine, Atomic physics, Nuclear Experiment, 010306 general physics, Nucleon, Nucleus, Boson
Abstract: The mean squared transverse momentum of J/ψ's measured in pCu, pU, OCu, OU and SU collisions at 200 GeV/ nucleon is analyzed in terms of initial state interactions. Taking this effect into account, the mechanism which suppresses the J/ψ production in ion-induced collisions would only have a weak PT dependence.
Published: 1991

12. The reaction e+e− → γγ(γ) at Z0 energies

Author: A. Campion, S. Volponi, R. Zukanovich Funchal, Marc Winter, C. Troncon, Ariel Goobar, J. H. Koehne, K. H. Becks, E. Vallazza, C. Vander Velde, P. Abreu, P. Borgeaud, Itzhak Roditi, Gueorgui Chelkov, M. Bonapart, F. Couchot, G. Hamel de Monchenault, J. Bjarne, P. Antilogus, F. Alted, P. Negri, W. Kucewicz, G. Matthiae, J.H. Bibby, E.N. Tsyganov, J. H. Wickens, K. Hamacher, W. Klempt, S-O. Holmgren, N. Crosland, W. Venus, Jose Luis Contreras, Tiziano Rovelli, G. Wormser, Pieter David, Peter M. Allen, B. A. Khomenko, M. Sesa, S. Gumenyuk, R. A. Brenner, J. Velasco, M. Pimenta, M. Voutilainen, G. Grosdidier, W. D. Apel, F. Richard, C. Matteuzzi, M. Crozon, D. Radojicic, Jan Ridky, N. De Groot, A. Stocchi, Francesco Navarria, J. Zúñiga, M. Kopf, S. J. Alvsvaag, M. Hahn, Alessandra Romero, C. Lambropoulos, Ugo Amaldi, W. De Boer, E. Zevgolatakos, W. Krupinski, I. Lippia, M. Jonker, A. Ruiz, J. Kesteman, G. Borisov, G. Kantardjian, C. J. Beeston, n. Brunner, B. Korzen, P. Checcia, S. Marti, T. Kreuzberger, R. Ovara, F. Verbeue, A. B. Fenyuk, P. Lutz, J. Pyyhtia, S. Almehed, F. Stichelbaut, F. Hahn, W. Van Doninck, R. Mc Kay, F. Adami, R. Keranen, H. J. Hilke, Francisco Matorras, Goeran Jarlskog, N. Yamdagni, P. F. Honore, D. Johnson, Th. D. Papadopoulou, Guenakh Mitselmakher, L. Di Ciaccio, R. Zitoun, A. Katargin, Mogens Dam, V. Canale, D. Isenhower, M. Los, R. Llosa, Claudia J. Stubenrauch, R. Seufert, H. Forsbach, Jon Christopher Wikne, C. Defoix, V. Lepeltier, J. E. Augustin, A. Pinsent, Demetrios Loukas, C. Ronnqvist, G. Zhang, Eleuterio Spiriti, F. Fulda-Quenzer, T. Todorov, A. P. Ostankov, J. Derkaoui, S. Squarcia, R. Holmes, H. Saarikko, T. Tabarelli, G. Vegni, Ph. Gavillet, T. Moa, T. Braun, S. Haider, K. Woschnagg, V. Kostukhin, M. L. Turluer, E. Graziani, E. Lieb, Edoardo Castelli, D. Reid, F. Pierre, E. K. Johansson, C. Bosio, J. M. Brunet, H. Foeth, José Salt, G. Gopal, C. Caso, D. Fassouliotis, Ariella Cattai, Luc Pape, Ugo Gasparini, F. Ledroit, Jacques Lemonne, E. J. Sanchez, Gianni Zumerle, B. Ueberschaer, M. Boratav, P. Roudeau, Jorge-Armando Benitez Garcia, T. P. A. Åkesson, O. Ullaland, G. Ekspong, Leif J. Jönsson, Piotr Zalewski, L. Vibert, P. Branchini, F. Kapusta, H. B. Crawley, Guido Barbiellini, Tiziano Camporesi, P. Poropat, Andromachi Tsirou, J. Guy, U. Trevisan, Giovanni Darbo, A. De Angelis, P. Collins, D. Delikaris, V. Vrba, N. van Eijndhoven, H. Schneider, Tim Adye, E. G. Anassontzis, M. Begalli, A. De Min, C. Kourkoumelis, Joao Varela, J. Werner, J. P. Engel, M. V. Castillo Gimenez, J. J. Gomez Y Cadenas, B. Franek, V.A. Uvarov, Daniel Bloch, S. Braibant, Borge Svane Nielsen, R. Lauhakangas, N. G. Redaelli, J. J. Lozano, M. H. Gros, H. Furstenau, Ahmimed Ouraou, V.M. Golovatyuk, A. G. Frodesen, S. Ueberschaer, Jan Buytaert, Marco Bozzo, M. T. Trainor, A. Lopez-Fernandez, D. Benedic, A. Klovning, G. Damgaard, Tuure Tuuva, A. Maltezos, A. G. Olshevski, M. Fernandez Alonso, Z. Hajduk, P. Frenkiel, S. Dagorte, T. Hofmokl, Marek Szczekowski, V. Obraztsov, Maciej Górski, Andrey Korytov, Maria Roberta Monge, A. Zalewska, Dietrich Liko, P. Privitera, W. T. Meyer, O. Pingot, M. Donszelmann, Jan Krolikowski, N. N. Khovanski, W. Bartl, E. Rosso, H. Klein, A. Hakansson, M. Michelotto, J. A. Valls Ferrer, I. Roncagliolo, B. Dalmagne, Laurent Chevalier, M. S. Bilenky, J. P. Laugier, M. Schaeffer, L.J. Carroll, N.I. Zimin, V. Gracco, C. Walck, K. D. Brand, B. De Lotto, P. Kokkinias, V. Ruhlmann, Milos Lokajicek, W. Dulinski, P. V. Chliapnikov, P. Weilhammer, Daniel Treille, M. Turala, W.S.C. Williams, Pavlos Ioannou, R. Moeller, D. Bertrand, L. Bugge, A. J. Camacho Rozas, Antonio Ferrer, J. Strauss, Roberto Cirio, Lucio Cerrito, L. K. Resvanis, D. Z. Toet, P. Folegati, W. Ruckstuhl, D. Crennell, F. Mandl, V. Chorowicz, Stefaan Tavernier, H. Wahlen, F. J. Harris, P. Beltran, J. Lindgren, Chiara Meroni, B. W. Heck, M. Richardson, J. E. Hooper, Carlos Lacasta, A. Perrotta, Krzysztof A. Rybicki, D. Wormald, A. Lettessier-Sevlon, M. Baubillier, Massimo Caccia, Vladimir Nikolaenko, G. Crosetti, Evgueni Vlasov, Guy Wilkinson, R. Lucock, A. M. Zaitsev, Alexander Vodopyanov, F. Bianchi, T. Spasoff, J. Cuevas Maestro, Luca Tortora, Francesca Romana Cavallo, H. Herr, Mitchell Wayne, A. Firestone, P. Juillot, M. Mazzucato, F. Waldner, F. Djama, P. Szymanski, M. Battaglia, M. Pernicka, I. Hietanen, T. Bolognese, V. V. Lapin, Jesus Marco, G. Lenzen, Ph. Charpentier, R. Strub, J. E. Campagne, C. De Clercq, R. Sekulin, M. Koratzinos, W. J. Murray, Y. Dufour, J. J. Hernandez, L. Lyon, J. P. Gerber, P. D. Dauncey, G. Maehlum, P. O. Hulth, G. Sette, A. Elliot Peisert, M. Vollmer, R. Mc Nulty, H. De Boeck, B. Jean-Marie, M. Tyndel, K. W. Glitza, J. Maillard, V. Perevozchikov, G. Polok, U. Rossi, Paolo Giacomelli, William Trischuk, B. Nijjhar, P. Delpierre, E. Daubie, S. Delorme, M. Berggren, M. Zito, A. Augustinus, C. Stanescu, S. D. Hodgson, G. Myatt, G. E. Theodosiou, A. Passeri, J.M. Gago, Pierre Billoir, S. C. Blyth, B. Grossetete, Allan Hallgren, Giovanni Valenti, P. Vaz, G. Smadja, M.D.M. De Fez Laso, M. Szeptycka, A. Lounis, S. Biagi, H. P. Borner, Stefan Schael, Natale Demaria, D. Y. Bardin, R. Dzhelyadin, A. Markou, Olga Botner, L. Mathis, George Kalkanis, P. B. Renton, Patrick Jarry, G. Rinaudo, D. C. Fries, Krzysztof Korcyl, E. C. Katsoufis, U. Mjoernmark, M. J. Bates, Paul Baillon, Jose M. Benlloch, A. Grant, Carmen García, Marta Calvi, Alexander Lincoln Read, Geoffrey Smith, G. Leder, D. Gamba, L. S. Vertogradov, G. Voulgaris, I. Herbst, H. Palka, Juan Fuster, G. Skjevling, J. W. Lamsa, Hans Dijkstra, F. Barao, E. Higon, F. Scuri, A. M. Wetherell, L. Lanceri, J. N. Jackson, U. Kruener-Marquis, Mario Sannino, Paolo Ronchese, N. J. Kjaer, B.D. Hyams, M. A. Lopez Aguera, G. Tristram, Paula Eerola, B. Åsman, E. I. Rosenberg, L. O. Eek, Josef Hrubec, G. E. Kalmus, Fernand Grard, K. Kurvinen, Javier Sánchez, A. M. Segar, B. Bouquet, M. De Beer, P. S. Iversen, F. Fontanelli, M. Bonesini, G. W. Van Apeldoorn, R. J. Apsimon, Y. Sacquin, Pierre Astier, L. G. Tkatchev, L. Ventura, W. Bonivento, Tord Ekelof, H. Staeck, Hans Muller, B. Loerstad, P. N. Bogolubov, M. Pegoraro, E. Dahl-Jensen, H. Burmeister, Robert S. Brown, D. Vilanova, P. Herquet, J-C. Marin, G. Cosme, R. Gokieli, R. Contri, Spyros Tzamarias, M. Davenport, U. Nau-Korzen, A. Baroncelli, K. Doroba, E. Menichetti, Stefano Ragazzi, M. Houlden, Manolis Dris, P. Van Dam, W.H. Range, F. Cao, E. Lillethun, R. Sosnowski, F. Naraghi, V. G. Timofeev, Renato Turchetta, C. De La Vaissiere, G. Galeazzi, K. Moenig, A. Tilquin, Martino Margoni, E. Fokitis, J. Dolbeau, P. Bambade, Pawel Jalocha, Barry King, P.S.L. Booth, P. N. Ratoff, D. J. Holthuizen, K. Furnival, Charles Bricman, Wolfgang Adam, R. Frühwirth, Yu. Belokopytov, J. Timmermans, G. D. Alekseev, M. P. Clara, A. Lipniacka, M. Mc Cubbin, K. Hultqvist, Maria Elena Pol, S. Katsanevas, D. Husson, T. A. Filippas, M. Regler, G. Stavropoulo, I. A. Tyapkin, P. Yepes, H. Mueller, P. Kluit, B. Koene, A. Pullia, Paolo Morettini, J. G. Loken, P. Beilliere, W. A. Mitaroff, R. Pain, O. Barring, S. Maltezos, J. Drees, Evangelos Gazis, M. Dracos, Abreu, P., Adama, W., and Canale, Vincenzo
Subjects: Physics, Geometric matching, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Lambda, 01 natural sciences, Nuclear physics, Excited state, 0103 physical sciences, Physique des particules élémentaires, Atomic physics, 010306 general physics
Abstract: The total and differential cross-sections for the reaction e+e- → γγ(γ) are measured at centre of mass energies around 91 GeV using an integrated luminosity of 4.7 pb-1. The aggreement with QED prediction is good. Consequently there is no evidence for non-standard channels which would have the same experimental signature. The lower limits on the QED cuttoff parameters are Λ+ > 113 GeV and Λ- > 95 GeV. An upper limit on the effective coupling between a possible excited electron and the gamma is derived. At 95% confidence level the branching ratios for Z0 decay into π0γ, ηψ and γγγ are below 1.5 × 10-4, 2.8 × 10-4 and 1.4 × 10-4 respectively., 0, info:eu-repo/semantics/published
Published: 1991

13. Transverse momentum of produced in pCu, pU, 16OCu, 16OU and 32SU collisions at 200 GeV per nucleon

Author: R. Haroutunian, X. Tarrago, F. Staley, X. Felgeyrolles, P. Busson, Joao Varela, P. Liaud, O. Drapier, A. Romana, M. Bedjidian, Ph. Gorodetzky, B. Chaurand, D. Jouan, R. Kossakowski, J.-R. Pizzi, C. Gerschel, S. Silva, A. Baldisseri, E. Descroix, J.-Y. Grossiord, Claude Charlot, R.A. Salmeron, M. Alimi, J.M. Gago, C. Baglin, P. Force, L. Fredj, S. Papillon, A. Guichard, M.C. Abreu, Luis Peralta, P. Bordalo, A. Bussière, R. Ferreira, A. Devaux, G. Landaud, B. Grosdidier, Francois Vazeille, R. Cases, C. Racca, S. Ramos, A. Baldit, Carlos Lourenco, L. Kluberg, J. Castor, P. Sonderegger, Didier Contardo, T. Chambon, J. P. Guillaud, and J. Fargeix
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, 0103 physical sciences, Transverse momentum, 010306 general physics, Nucleon, 01 natural sciences
Published: 1991

14. Search for the t and b' quarks in hadronic decays of the Z0 boson

Author: P. Abreu, W. Adam, F. Adami, T. Adye, G.D. Alekseev, J.V. Allaby, P. Allen, S. Almehed, F. Alted, S.J. Alvsvaag, U. Amaldi, E. Anassontzis, W.D. Apel, B. Asman, C. Astor Ferreres, J.E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, G. Barbiellini, D.Yu. Bardin, A. Baroncelli, O. Barring, W. Bartl, M.J. Bates, B.V. Batyunia, M. Baubillier, K.H. Becks, C.J. Beeston, P. Beilliere, I. Belokopytov, P. Beltran, D. Benedic, J.M. Benlloch, M. Berggren, D. Bertrand, S. Biagi, F. Bianchi, J.H. Bibby, M.S. Bilenky, P. Billor, J. Bjarne, D. Bloch, P.N. Bogolubov, D. Bollini, T. Bolognese, M. Bonapart, Y.E. Bonyushkin, P.S.L. Booth, M. Boratav, P. Borgeaud, H. Borner, C. Bosio, O. Botner, B. Bouquet, M. Bozzo, S. Braibant, P. Branchini, K.D. Brand, R.A. Brenner, C. Bricman, R.C.A. Brown, N. Brummer, J.M. Brunet, L. Bugge, T. Buran, H. Burmeister, C.M. Buttar, J.A.M.A. Buytaert, M. Caccia, M. Calvi, A.J. Camacho Rozas, J.E. Campagne, A. Campion, T. Camporesi, V. Canale, F. Cao, L. Carroll, C. Caso, E. Castelli, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, L. Cerrito, P. Charpentier, P. Checchia, G.A. Chelkov, L. Chevalier, P.V. Chliapnikov, V. Chorowicz, R. Cirio, M.P. Clara, J.L. Contreras, R. Contri, G. Cosme, F. Couchot, H.B. Crawley, D. Crennel, M. Cresti, G. Crosetti, N. Crosland, M. Crozon, J. Cuevas Maestro, S. Czellar, S. Dagoret, E. Dahl-Jensen, B. D'Almagne, M. Dam, G. Damgaard, G. Darbo, E. Daubie, M. Davenport, P. David, A. De Angelis, M. De Beer, H. De Boeck, W. De Boer, C. De Clercq, M.D.M. De Fez Laso, N. De Groot, C. De La Vaissiere, B. De Lotto, C. Defoix, D. Delikaris, P. Delpierre, N. Demaria, L. Di Ciaccio, A.N. Diddens, H. Dijkstra, F. Djama, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, W. Dulinski, R. Dzhelyadin, D.N. Edwards, L.O. Eek, P.A.M. Eerola, G. Ekelop, G. Ekspong, J.P. Engel, V. Falaleev, A. Fenyuk, M. Fernandez Alonso, A. Ferrer, S. Ferroni, T.A. Filippas, A. Firestone, H. Foeth, E. Fokitis, F. Fontanelli, H. Forsbach, B. Franek, K.E. Fransson, P. Frenkiel, D.C. Fries, R. Fruhwirth, F. Fulda-Quenzer, H. Fuerstenau, J. Fuster, J.M. Gago, G. Galeazzi, D. Gamba, U. Gasparini, P. Gavillet, S. Gawne, E.N. Gazis, P. Giacomelli, K.W. Glitza, R. Gokieli, V.M. Golovatyuk, A. Goobar, G. Gopal, M. Gorski, Yu. Gouz, V. Gracco, A. Grant, F. Grard, E. Graziani, I.A. Gritsaenko, M.H. Gros, G. Grosdidier, B. Grossetete, S. Gumenyuk, J. Guy, F. Hahn, M. Hahn, S. Haider, Z. Hajduk, A. Hakansson, A. Hallgren, K. Hamacher, G. Hamel De Monchenault, J.F. Harris, B. Heck, I. Herbst, J.J. Hernandez, P. Herquet, H. Herr, E. Higon, H.J. Hilke, T. Hofmokl, R. Holmes, S.O. Holmgren, J.E. Hooper, M. Houlden, J. Hrubec, P.O. Hulth, K. Hultqvist, D. Husson, B.D. Hyams, P. Ioannou, P.S. Iversen, J.N. Jackson, P. Jalocha, G. Jarlskog, P. Jarry, B. Jean-Marie, E.K. Johansson, M. Jonker, L. Jonsson, P. Juillot, R.B. Kadyrov, V.G. Kadyshevsky, G. Kalkanis, G. Kalmus, G. Kantardjian, F. Kapusta, P. Kapusta, S. Katsanevas, E.C. Katsoufis, R. Keranen, J. Kesteman, B.A. Khomenko, B. king, H. Klein, W. Klempt, A. Klovning, P. Kluit, J.H. Koehne, B. Koene, P. Kokkinias, M. Kopf, M. Koratzinos, K. Korcyl, A.V. Korytov, B. Korzen, M. Kostrikov, C. Kourkoumelis, T. Kreuzberger, J. Krolikowski, U. Kruener-Marquis, W. Krupinski, W. Kucewicz, K. Kurvinen, M.I. Laakso, C. Lambropoulos, J.W. Lamsa, L. Lanceri, V. Lapin, J.P. Laugier, R. Lauhakangas, P. Laurikainen, G. Leder, F. Ledroit, J. Lemonne, G. Lenzen, V. Lepeltier, A. Letessier-Selvon, P.K. Lichtenwagner, E. Lieb, E. Lilestol, E. Lillethun, I. Lippi, R. Llosa, B. Loerstad, M. Lokajicek, J.G. Loken, A. Lopez, M.A. Lopez Aguera, D. Loukas, J.J. Lozano, R. Lucock, B. Lund-Jensen, P. Lutz, L. Lyons, G. Maehlum, J. Maillard, A. Maltezos, F. Mandl, J. Marco, J.C. Marin, A. Markou, L. Mathis, C. Matteuzzi, G. Matthiae, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, E. Menichetti, C. Meroni, W.T. Meyer, W.A. Mitaroff, G.V. Mitselmakher, U. Mjoernmark, T. Moa, R. Moeller, K. Moenig, M.R. Monge, P. Morettini, H. Mueller, H. Muller, G. Myatt, F. Naraghi, U. Nau-Korzen, F.L. Navarria, P. Negri, B.S. Nielsen, M. Nigro, V. Nikolaenko, V. Obraztsov, R. Orava, A. Ouraou, R. Pain, K. Pakonski, H. Palka, T. Papadopoulou, L. Pape, P. Pasini, A. Passeri, M. Pegoraro, V. Perevozchikov, M. Pernicka, M. Pimenta, O. Pingot, C. Pinori, A. Pinsent, M.E. Pol, G. Polok, P. Poropat, P. Privitera, A. Pullia, J. Pyyhtia, A.A. Rademakers, D. Radojicic, S. Ragazzi, W.H. Range, P.N. Ratoff, A.L. Read, N.G. Redaelli, M. Regler, D. Reid, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Roditi, A. Romero, P. Ronchese, E. Rosenberg, U. Rossi, E. Rosso, P. Roudeau, T. Rovelli, V. Ruhlmann, A. Ruiz, H. Saarikko, D. Sacco, Y. Sacquin, A.B. Sadovsky, E. Sanchez, E. Sanchis, M. Sannino, M. Schaeffer, W. Schneider, F. Scuri, A. Sebastia, A.M. Segar, R. Sekulin, M. Sessa, G. Sette, R. Seufert, R.C. Shellard, P. Siegrist, S. Simonetti, F. Simonetto, T.B. Skaali, J. Skeens, G. Skjevling, G. Smadja, G.R. Smith, R. Sosnowski, K. Spang, T. Spassoff, E. Spiriti, S. Squarcia, H. Staeck, C. Stanescu, G. Stavropoulos, F. Stichelbaut, A. Stocchi, J. Strauss, R. Strub, C. Stubenrauch, M. Szczekowski, M. Szeptycka, P. Szymanski, S. Tavernier, G. Theodosiou, A. Tilquin, J. Timmermans, L.G. Tkatchev, D.Z. Toet, A.K. Topphol, L. Tortora, D. Treille, U. Trevisan, G. Tristram, C. Troncon, E.N. Tsyganov, M. Turala, R. Turchetta, M.L. Turluer, T. Tuuva, I.A. Tyapkin, M. Tyndel, S. Tzamarias, F. Udo, S. Ueberschaer, V.A. Uvarov, G. Valenti, E. Vallaza, J.A. Valls, G.W. Van Apeldoorn, P. Van Dam, W.K. Van Doninck, N. Van Eijndhoven, C. Vander Velde, J. Varela, P. Vaz, G. Vegni, M.E. Veitch, E. Vela, J. Velasco, L. Ventura, W. Venus, F. Verbeure, L. Vibert, D. Vilanova, E.V. Vlasov, A.S. Vodopianov, M. Vollmer, G. Voulgaris, M. Voutilainen, H. Wahlen, C. Walck, F. Waldner, M. Wayne, P. Weilhammer, J. Werner, A.M. Wetherell, J.H. Wickens, J. Wikne, W.S.C. Williams, M. Winter, D. Wormald, G. Wormser, K. Woschnagg, N. Yamdagni, P. Yepes, A. Zaitsev, A. Zalewska, P. Zalewski, E. Zevgolatakos, G. Zhang, N.I. Zimin, A.I. Zinchenko, R. Zitoun, R. Zukanovich Funchal, G. Zumerle, J. Zuniga, Heyd, Yvette, 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), DELPHI, 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), Abreu, P., Adam, W., and Canale, Vincenzo
Subjects: Quark, Nuclear and High Energy Physics, Top quark, Particle physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Electron–positron annihilation, Hadron, 01 natural sciences, 7. Clean energy, law.invention, Nuclear physics, law, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Nuclear Experiment, 010306 general physics, Collider, Charged current, Boson, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Physique des particules élémentaires, Higgs boson, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: We present a search for the third generation up type quark t and a possible fourth down type quark b' in hadronic Z0 decays observed in DELPHI at the LEP collider. For any scenario with a decay through the charged current or into a charged Higgs with a mass at least 6 GeV/c2 below the t and 3 GeVc2 below the b' mass, we set a lower limit for the t quark mass at 44.0 GeV/c2 and for the b' mass at 44.5 GeV/c2. For specific scenarios the mass limits are slightly higher, e.g. for charged current decays the limits are 44.5 and 45.0 GeV/c2 respectively, where all limits are given at a 95% confidence level. © 1990., 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 1990

15. Study of the leptonic decays of the Z0 boson

Author: A. Klovning, U. Mjoernmark, Sandor Czellar, G. Polok, M. Bozzo, V.A. Uvarov, A. Ruiz, Ugo Gasparini, Paolo Pasini, P. Queru, W. K. Van Doninck, F. Richard, C. Matteuzzi, M. Hahn, B. Bouqquet, A. G. Frodesen, Andrey Korytov, Jan Krolikowski, N. N. Khovanski, W. Bartl, B. V. Batyunia, R. Pain, B. Koene, E. Lieb, A. Sebastia, I. Lippi, E.N. Tsyganov, J. H. Wickens, Jose Luis Contreras, C. Vander Velde, C. Lambropoulos, Ugo Amaldi, E. Zevgolatakos, R. Rongved, S. Almehed, C. Pinori, J. P. Laugier, J.A.M.A. Buytaert, A.N. Diddens, U. Kruener-Marquis, M. Gorbics, J.A. Lidbury, D. Radojicic, J.P. Grillet, M. Pimenta, N. De Groot, M. De Beer, G. Wormser, Ariella Cattai, Jacques Lemonne, A. Stocchi, Guido Barbiellini, M. Pernicka, G. Lenzen, J. E. Campagne, M. Koratzinos, L. Guglielmi, M. Bonapart, Wolfgang Adam, D. Bertrand, Francesco Navarria, Paolo Morettini, J. G. Loken, J.F. Genat, B. Kisielewski, Paolo Ronchese, T. Kreuzberger, J.C. Raoul, G. Goujon, G. Crosetti, Evgueni Vlasov, M. Nigro, Jan Ridky, A. S. Vodopianov, Tuure Tuuva, Clara Troncon, Itzhak Roditi, Gueorgui Chelkov, J. Guy, B. Dalmagne, M. Kopf, J. N. Jackson, P. Kokkinias, M. Passeneau, S. Ferroni, Z. Hajduk, F. Udo, G. Petrucci, M. Nordberg, R. Lauhakangas, H. Herr, Winfried Mitaroff, P. Beltran, Louis Lyons, C.W. Salgado, J. Mas, P. Lutz, G. Tristram, P. Laurikainen, S. Du, Paula Eerola, O. Ullaland, F. Djama, C. Gaspar, S. Haider, D.N. Edwards, C. Caso, M. Sessa, V. Castillo Gimenez, P. Negri, Tim Adye, C. De La Vaissiere, Laurent Chevalier, U. Trevisan, N. Crosland, J.V. Allaby, M. Jonker, Y. Sacquin, Maciej Górski, A. B. Fenyuk, L. Mattsson, J.J. Jaeger, Tiziano Rovelli, M. Cresti, J.H. Bibby, G.P. Barreira, B. Lund-Jensen, G. E. Kalmus, G. D. Alekseev, J. M. Yelton, A. Passeri, S. Gawne, Klaus Hamacher, A. Firestone, G. Kantardjian, C. De Clerco, Milos Lokajicek, K. Woschnagg, M. Nonni, P. Branchini, J. Krstic, Göran Jarlskog, W. Bell, N. I. Zimin, Stavros Maltezos, Mikael Berggren, H. Hofmann, J. Cuevas Maestro, H. B. Crawley, V. Lepeltier, H. Forsbach, F. Fulda-Quenzer, T. Bolognese, E. C. Katsoufis, G. Gopal, A. Letessier-Selvon, S. Gumenyuk, Nikolai Smirnov, V. Ruhlmann, O. Barring, G. Zhang, Paolo Checchia, B. Franek, W. Kucewicz, G. Matthiae, C. Stanescu, L.J. Carroll, M. L. Turluer, M. Vollmer, D. Reid, Ph. Gavillet, P. Spentzouris, E. Graziani, B. Jean-Marie, A. Hakansson, E. J. Sanchez, W. D. Apel, S. J. Alvsvaag, Roland Horisberger, L. Bugge, G. Hamel de Monchenault, E. G. Anassontzis, J. P. Engel, I. Kontaxis, P. Lorenz, P. Roudeau, M. J. Bates, Edoardo Castelli, D. Z. Toet, J. Joensuu, J. M. Brunet, H. Lebbolo, Josef Strauss, R. Llosa, N. Bingefors, P. Van Dam, M. Fernandez Alonso, P. Privitera, M.V. Reis, P. Weilhammer, Luc Pape, D. Imbault, R. Zitoun, D. Langerveld, P. Abreu, P. Borgeaud, Borge Svane Nielsen, M. H. Gros, F. J. Harris, H. Foeth, P. Allen, Gianni Zumerle, F. Astesan, Toralf Bernhard Skaali, Maria Roberta Monge, S. Barlag, A. Zalewska, Valery Pozdnyakov, G. Cabras, Krzysztof Doroba, Chiara Meroni, A.K. Topphol, C. Brand, M. Mc Cubbin, G. Ekspong, K. Hultqvist, Renato Turchetta, B. Grossetete, Allan Hallgren, B. Korzen, P. Poropat, G. Damgaard, C. Poiret, L. Tortora, Giovanni Valenti, I. Belokopytov, M. Boratav, D. Gamba, G. Voulgaris, Sverker Johansson, W. T. Meyer, Pierre Billoir, Mogens Dam, K. Rybicki, W. Venus, B. Muryn, V. Obraztsov, P. Aarnio, V. Gracco, M. Schaeffer, Andre Augustinus, P. Herquet, H. Palka, G. Skjevling, R. Contri, Giovanni Darbo, S. Simonetti, M. Voutilainen, G. Grosdidier, R. Sekulin, R. Dzhelyadin, T. Pettersen, Jose M. Benlloch, A. Grant, R.B. Kadyrov, F. Barao, P. V. Chliapnikov, M. Crozon, Craig Buttar, A. De Angelis, D. Delikaris, N. van Eijndhoven, J. Werner, L. Viseu Melo, E. Sundell, M.I. Laakso, Daniel Bloch, Hans Dijkstra, I. Herbst, Katri Huitu, T.K. Truong, B. Goret, M. Baubillier, R. Lucock, Alessandra Romero, Georgios Stavropoulos, J.M. Noppe, M. Turala, Barry King, Ahmimed Ouraou, Pavlos Ioannou, F. Simonetto, R. Gokieli, A. Tilquin, J. Perez, I.A. Gritsaenko, G. Leder, G. B. Chadwick, E. Higon, R. Seufert, V.M. Golovatyuk, W.S.C. Williams, Daniel Treille, J. J. Hernandez, R. Frühwirth, Manolis Dris, J. Pyythia, B. Åsman, P. Adrianos, C. J. Beeston, F. Scuri, Juan Fuster, N.K. Vishnevskij, A. M. Zaitsev, E. K. Johansson, J. E. Hooper, J.C. Le Grand, J. Timmermans, J. Pagot, A. Pullia, J.-E. Augustin, A. M. Wetherell, E. Lillethun, T. Moa, G. Maehlum, K. Pakonski, F. Bianchi, J. Michałowski, Kjell Fransson, L. Lanceri, D. Husson, J. Barlow, E. Vela, Lucio Cerrito, T. Buran, J.B.M. Pattison, I. A. Tyapkin, M. A. Houlden, D. Crennell, F. Mandl, A. Pinsent, A.M. Romaya, M. Ellila, Guenakh Mitselmakher, A.J. Camacho Rozas, D. Vilanova, G. Smadja, D.Yu. Barbin, S. Squarcia, K. W. Glitza, A. Zinchenko, E. Menichetti, Olga Botner, Krzysztof Korcyl, H. Saarikko, T. Hofmokl, Marek Szczekowski, N. Dimitriou, Stefano Ragazzi, José Salt, F. Couchot, R. Sosnowski, B. W. Heck, E. Rosso, H. Klein, H. Schneider, V. G. Timofeev, S. Nounos, J.-P. Vanuxem, Panos Kostarakis, M.-H. Gros, A. Markou, F. Cao, V. Falaleev, E. Lillestol, V. Chorowicz, O.A. Maeland, R. Downs, J. Haissinski, S. Braibant, Tord Ekelof, H. Staeck, G. Galeazzi, R. Strub, B. Loerstad, K. Moenig, S. Cairanti, H. Burmeister, D. Sacco, M. Mazzucato, E. Fokitis, Robert S. Brown, J. Drees, P. Szymanski, Patrick Jarry, M. Winter, G. Rinaudo, Evangelos Gazis, G. Vegni, N. Brummer, W. H. Range, E. Spiriti, B.D. Hyams, E. I. Rosenberg, K. Kurvinen, M. Dracos, R. Ragazzon, P. Siegrist, J-C. Marin, M. Davenport, B. Grung, A. A. Rademakers, S. O. Holmgren, D. Benedic, D. Loukas, George Kalkanis, P. B. Renton, M. Flinn, L. O. Eek, R. C. Shellard, L. Di Ciaccio, Josef Hrubec, A. M. Segar, D. C. Fries, G. Kuhn, P. S. Iversen, F. Fontanelli, J. Skeens, C. Astor Ferreres, J. Velasco, Marta Calvi, L. Tkachev, Vincenzo Canale, Geoffrey Smith, G. W. Van Apeldoorn, G. Sette, L.S. Curwen, W. Dulinski, L. Ventura, Håkan T Johansson, B. Lavigne, S. Palma Lopes, S. Quinton, Hans Muller, T. Odegaard, P. N. Bogolubov, Christine Kourkoumelis, E. Dahl-Jensen, H. De Boeck, M. Tyndel, P. Vaz, D. Bollini, M. Pegoraro, J. Maillard, P. Jalocha, S. Biagi, H. P. Borner, V. Kadyshevskiy, V. Perevozchikov, Theodora Papadopoulou, Tiziano Camporesi, N. G. Redaelli, P. Frenkiel, R. Moeller, A. Baroncelli, A. Hrisoho, H. J. Hilke, C. Bosio, F. Waldner, K. D. Brand, Antonio Ferrer, Roberto Cirio, L. K. Resvanis, C. Walck, G. E. Theodosiou, M. Zito, O. Pingot, K. Spang, E. Sanchis, L. Mathis, Massimo Caccia, N. Yamdagni, Paul Baillon, Alexander Lincoln Read, Vladimir Nikolaenko, M. Szeptycka, P. Juillot, M. Mur, M.A. Lopez Aguera, Francesca Romana Cavallo, Mitchell Wayne, V. V. Lapin, P. O. Hulth, F. Rossel, P. Delpierre, E. Daubie, G. Myatt, J.M. Gago, Joao Varela, P. Kluit, P. R. S. Gomes, S. Ueberschaer, A. Maltezos, M. Gaillard, A. Campion, R. Zukanovich Funchal, H. Wahlen, Ariel Goobar, D. Fraissard, K. H. Becks, P. Antilogus, M. E. Veitch, J. Bjarne, W. Klempt, F. Hahn, F. Stichelbaut, R. Mc Kay, Cesare Chiccoli, F. Adami, M. Barranco-Luque, R. Keranen, Philippe Charpentier, Mario Sannino, R. Orava, S. Topp-Jorgensen, Maria Elena Pol, S. Katsanevas, T. A. Filippas, M. Regler, Yu. Sedykh, B. Van Eijk, H. Mueller, J. Dolbeau, P. Folegati, P.S.L. Booth, P. N. Ratoff, J. J. Gómez Cadenas, J. Marco, M. P. Clara, Piotr Zalewski, 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), DELPHI, Heyd, Yvette, Abreu, P., Adam, W., Canale, Vincenzo, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, Width ratio, 01 natural sciences, 7. Clean energy, Nuclear physics, 0103 physical sciences, Physique des particules élémentaires, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Neutrino, 010306 general physics, Particle Physics - Experiment, Lepton, Boson
Abstract: Measurements are presented of the cross section ratios Rℓ = σℓ(e+e-→ℓ+ℓ -)/σhh(e+e-→hadrons) for ℓ = e, μ and τ using data taken from a scan around the Z0. The results are Re = (5.09±0.32±0.18)%, Rμ = (4.96±0.35±0.17)% and Rτ,=(4.72±0.38± 0.29)% where, for the ratio Re, the t-channel contribution has been subtracted. These results are consistent with the hypothesis of lepton universality and test this hypothesis at the energy scale s ∼ 8300 GeV2. The absolute cross sections σℓ(e+e-→ℓ +ℓ-) have also been measured. From the cross sections the leptonic partial widths Γe = (83.2±3.0±2.4) MeV, (ΓeΓμ) 1/2=(84.6±3.0±2.4) MeV and (ΓeΓτ) 1/2=(82.6±3.3±3.2) MeV have been extracted. Assuming lepton universality the ratio Γℓ/Γh=(4.89±0.20± 0.12) × 10-2 was obtained, together with Γℓ=(83.6±1.8±2.2) MeV. The number of light neutrino species is determined to be Nv=3.12±0.24±0.25. Al the data are consistent with the predictions of the standard model., 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 1990

16. J/$\psi$ and $\psi'$ production in p, O and S induced reactions at SPS energies

Author: S. Mourgues, L. Fredj, S. Papillon, P. Sonderegger, Ph. Gorodetzky, A. Bohrani, Bruno Espagnon, S. Silva, P. Saturnini, T. Chambon, B. Chaurand, X. Tarrago, C. Gerschel, R. Kossakowski, A. Bussiere, J. Fargeix, B. Ronceux, R. Ferreira, Carlos Lourenco, L. Kluberg, J.-R. Pizzi, M. Bedjidian, Claude Charlot, J.-Y. Grossiord, A. Baldit, A. Romana, Didier Contardo, Francois Vazeille, F. Ohlsson-Malek, M.C. Abreu, L. Luquin, E. Descroix, P. Bordalo, A. Devaux, O. Drapier, A. Guichard, R. Haroutunian, D. Jouan, G. Landaud, I. Chevrot, J. Castor, J. Astruc, J.M. Gago, C. Racca, S. Ramos, R. Mandry, C. Baglin, J.P. Guillaud, Philippe Busson, P. Force, Joao Varela, François Fleuret, Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), 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 Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), 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), ALICE, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), 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 Claude Bernard Lyon 1 (UCBL), 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), NA38, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-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)-École polytechnique (X)-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 National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, Nuclear and High Energy Physics, Large Hadron Collider, Proton, 010308 nuclear & particles physics, Dictionnaries, Nuclear Theory, targeted markup XML, API DOM, 7. Clean energy, 01 natural sciences, Ion, Nuclear physics, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], 0103 physical sciences, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Encyclopedia, High Energy Physics::Experiment, Atomic physics, 010306 general physics, Nucleon, Nuclear Experiment, Particle Physics - Experiment, C++
Abstract: The production of the \jpsi\ and \psip\ charmonia states has been studied, through their dimuon decay, in proton, Oxygen and Sulphur induced reactions, by the NA38 experiment at the CERN SPS. The proton data was collected with beams of 200 and 450~GeV, while the ion beams had an energy of 200~GeV per incident nucleon. The \jpsi\ production cross-section per nucleon-nucleon collision exhibits a remarkably continuous pattern, as a function of the product of the mass numbers of the interacting nuclei, from pp up to S-U reactions. The same pattern is observed within S-U collisions, as a function of the collision centrality. While in p-A interactions both charmonia states exhibit the same A-dependence, in \mbox{S-U} collisions the \psip\ production is very strongly suppressed.
Published: 1999

17. J/$\psi$, $\psi'$ and Drell-Yan production in S-U interactions at 200 GeV per nucleon

Author: J.-R. Pizzi, X. Tarrago, F. Ohlsson-Malek, C. Gerschel, R. Ferreira, A. Devaux, B. Espagnon, C. Baglin, M. Bedjidian, E. Descroix, A. Romana, P. Sonderegger, Ph. Gorodetzky, S. Silva, J.M. Gago, S. Papillon, Carlos Lourenco, R. Mandry, Joao Varela, L. Kluberg, J. Castor, O. Drapier, J. Astruc, B. Ronceux, S. Ramos, Claude Charlot, M.C. Abreu, Didier Contardo, L. Luquin, G. Landaud, François Fleuret, C. Racca, R. Kossakowski, S. Mourgues, A. Guichard, Philippe Busson, A. Baldit, J.P. Guillaud, T. Chambon, P. Force, P. Saturnini, D. Jouan, A. Bussière, B. Chaurand, A. Bohrani, R. Haroutunian, I. Chevrot, J. Fargeix, P. Bordalo, J.-Y. Grossiord, Institut de Physique Nucléaire d'Orsay (IPNO), 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 d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), 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 Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-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), ALICE, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), 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 Claude Bernard Lyon 1 (UCBL), NA38, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-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 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)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Nuclear Theory, chemistry.chemical_element, Drell–Yan process, Uranium, 01 natural sciences, Nuclear physics, chemistry, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], 0103 physical sciences, High Energy Physics::Experiment, Production (computer science), Nuclear Experiment, 010306 general physics, Nucleon, Particle Physics - Experiment
Abstract: A detailed study of J/ ψ , ψ ′ and Drell-Yan production in S-U collisions has been performed by experiment NA38 at the CERN SPS. This paper presents production cross sections and their centrality dependence, based on the largest sample of S-U events collected by the experiment.
Published: 1999

18. A four-dimensional deconvolution method to correct NA38 experimental data

Author: A. Guichard, T. Chambon, X. Tarrago, S. Silva, F. Ohlsson-Malek, R. Haroutunian, J. P. Guillaud, E. Descroix, B. Espagnon, J.M. Gago, L. Luquin, D. Jouan, M.C. Abreu, Didier Contardo, S. Papillon, P. Saturnini, P. Bordalo, P. Liaud, R. Kossakowski, A. Bussière, A. Devaux, D. Lazic, R. Ferreira, J.-R. Pizzi, B. Chaurand, C. Gerschel, I. Chevrot, Ph. Gorodetzky, O. Drapier, J. Castor, J.-Y. Grossiord, J. Fargeix, J. Astruc, C. Baglin, B. Ronceux, Carlos Lourenco, L. Kluberg, R. Mandry, C. Racca, S. Ramos, A. Baldit, P. Force, Joao Varela, François Fleuret, M. Bedjidian, G. Landaud, J. Guimaraes, M. Gonin, P. Petiau, A. Romana, P. Sonderegger, S. Mourgues, A. Borhani, Institut de Physique Nucléaire d'Orsay (IPNO), 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 d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), 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 Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-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), ALICE, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), 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 Claude Bernard Lyon 1 (UCBL), NA38, 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 d'Annecy de Physique des Particules (LAPP), 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)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Subtraction, Experimental data, 01 natural sciences, Bayes' theorem, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], 0103 physical sciences, Statistical analysis, Deconvolution, 010306 general physics, Instrumentation, Algorithm
Abstract: A four-dimensional method to unfold NA38 experimental distributions is presented. It is based on the Bayes theorem and uses an iterative procedure. Tests of this method on Monte-Carlo simulated distributions are described. Subtraction of the background is discussed. This method is applied to the S-U data collected in 1992 by the NA38 experiment.
Published: 1998

19. J/$\Psi \psi'$ and Drell-Yan production in pp and pd interactions at 450 GeV/c

Author: Massimo Masera, E. Chiavassa, R. Ferreira, Paolo Giubellino, J.-Y. Grossiord, P. Bordalo, Ph. Gorodetzky, B. Espagnon, F. Ohlsson-Malek, Francois Vazeille, B. Chaurand, A. Devaux, X. Tarrago, L. Riccati, C. Gerschel, Ermanno Vercellin, J.-R. Pizzi, S. Silva, R. Mandry, A. Musso, Mauro Gallio, A. Piccotti, A. Guichard, S. Ramos, J. Fargeix, T. Chambon, A. Baldit, A. Romana, P. Sonderegger, M.C. Abreu, O. Drapier, P. Saturnini, G. Dellacasa, C. Barriere, Carlos Lourenco, L. Kluberg, M. Bedjidian, R. Haroutunian, G. Landaud, P. Force, Didier Contardo, Enrico Scomparin, D. Lazic, L. Ramello, J.M. Gago, A. Marzari-Chiesa, Marco Monteno, J. Castor, C. Racca, N. De Marco, D. Jouan, E. Descroix, P. Guaita, Joao Varela, François Fleuret, Bruno Alessandro, Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), 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 Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), 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), ALICE, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), 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 Claude Bernard Lyon 1 (UCBL), NA51, 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)-École polytechnique (X)-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 National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Mediation (Marxist theory and media studies), Communication studies, human geography, Drell–Yan process, 01 natural sciences, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], 0103 physical sciences, Human geography, cross-disciplinary approach, Production (computer science), mediation, 010306 general physics, communication studies
Abstract: This paper deals with sustainable development policies in the French South-Eastern Alps region (Digne-les-Bains). It aims to delineate the influence of communication and mediation practices which are used to implement such principles in a largely reluctant area. This approach combines the point of views of two sciences, media and communication on the one hand, geography , on the other hand
Published: 1998

20. SEARCH FOR EXCITED CHARGED LEPTONS IN Z0 DECAYS

Author: Th. D. Papadopoulou, Guenakh Mitselmakher, Maria Elena Pol, Patrick Jarry, S. Katsanevas, G. Rinaudo, J. Salt, D. Y. Bardin, E. K. Johansson, L. Vibert, Cristian Stanescu, P. Branchini, H. Schneider, T. A. Filippas, A. Firestone, M. De Beer, M. Regler, B.D. Hyams, M. Vollmer, U. Rossi, M. Bonesini, Paolo Giacomelli, E. I. Rosenberg, M. Michelotto, W. Kucewicz, G. Matthiae, Y. Sacquin, S. Delorme, K. Kurvinen, M. Zito, H. Mueller, A. Klovning, Javier Sánchez, L. S. Vertogradov, P. Poropat, A. Lopez-Fernandez, U. Mjoernmark, C. Bosio, A. Pullia, E. Menichetti, G. W. Van Apeldoorn, Stefano Ragazzi, B. De Lotto, G. Crosetti, Evgueni Vlasov, Pierre Astier, B. Korzen, S. Marti, L. Ventura, H. Furstenau, Tuure Tuuva, W.H. Range, F. Cao, R. Moeller, B. Grossetete, Allan Hallgren, Giovanni Valenti, W. Bonivento, G. Galeazzi, A. Ferrer, K. Moenig, H. Herr, L. G. Tkatchev, Roberto Cirio, L. K. Resvanis, M. Kopf, Dietrich Liko, P. Privitera, Martino Margoni, E. Fokitis, Andrey Korytov, T. Hofmokl, Marek Szczekowski, G. D. Alekseev, Hans Muller, V. Vrba, C. Vander Velde, Tiziano Camporesi, J. Dolbeau, P. Bambade, Guido Barbiellini, J. Guy, Tim Adye, P.S.L. Booth, P. N. Ratoff, R. Zitoun, M. Mc Cubbin, K. Hultqvist, M. Bonapart, G. Cosme, Georgios Stavropoulos, E. Rosso, H. Klein, Jan Krolikowski, Tord Ekelof, D. Vilanova, N. N. Khovanski, W. Bartl, H. Staeck, Massimo Caccia, J. A. Valls Ferrer, M. Jonker, Jon Christopher Wikne, F. Alted, G. A. Chelkov, Vladimir Nikolaenko, Itzhak Roditi, M. Richardson, F. Fulda-Quenzer, P. Abreu, Charles Bricman, G. Borisov, M. Baubillier, Achille Stocchi, Louis Lyons, P. N. Bogolubov, Christine Kourkoumelis, Daniel Treille, B. Koene, E. Dahl-Jensen, D. J. Holthuizen, K. D. Brand, N. G. Redaelli, J. P. Laugier, B. Loerstad, P. Juillot, H. Burmeister, N. I. Zimin, M. J. Bates, E. Graziani, C. Lambropoulos, Ugo Amaldi, J. M. Brunet, W. De Boer, A. M. Zaitsev, Alexander Vodopyanov, F. Djama, P. Borgeaud, U. Kruener-Marquis, K. Furnival, F. Bianchi, Marco Bozzo, Paolo Morettini, J. G. Loken, P. Beilliere, D. Husson, U. Gasparini, E. Zevgolatakos, P. Frenkiel, Robert S. Brown, Toralf Bernhard Skaali, A. Passeri, P. Herquet, R. Contri, U. Nau-Korzen, Mikael Berggren, M. Los, Paolo Ronchese, V. Ruhlmann, A. De Min, D. Gamba, G. Voulgaris, S. D. Hodgson, Demetrios Loukas, T. Buran, R. Sekulin, Peter M. Allen, V. Lepeltier, M. Pimenta, Joao Varela, S-O. Holmgren, N. Crosland, F. Waldner, J. Lindgren, J. J. Hernandez, C. J. Beeston, I. A. Tyapkin, J. Cuevas Maestro, T. S. Spassoff, Paolo Checchia, G. E. Theodosiou, S. C. Blyth, J. J. Gomez Y Cadenas, Manolis Dris, P. Vaz, N. J. Kjaer, Wolfgang Adam, G. Maehlum, P. Roudeau, Ph. Gavillet, T. Moa, B. A. Khomenko, N. De Groot, S. Ueberschaer, Nikita Smirnov, C. Walck, F. Verbeure, F. Kapusta, L. Bugge, A. J. Camacho Rozas, I. Lippi, D. Z. Toet, Matteo Pegoraro, Francesco Navarria, C. Defoix, Edoardo Castelli, F. Pierre, A. Lounis, T. Todorov, E. Lillethun, A. Maltezos, D. Isenhower, Klaus Hamacher, J. Zúñiga, S. Biagi, R. Pain, O. Barring, A. Baroncelli, S. Dagoret, M. L. Turluer, G. Wilkinson, A. Pinsent, M.D.M. De Fez Laso, D. Reid, G. Hamel de Monchenault, H. P. Borner, Stefaan Tavernier, Andrea Perrotta, L. O. Eek, R. C. Shellard, L. Di Ciaccio, Josef Hrubec, E.N. Tsyganov, J. H. Wickens, R. Lauhakangas, P. Van Dam, Josef Strauss, T. Kreuzberger, W. Van Doninck, Natale Demaria, Jose Luis Contreras, I. Herbst, G. Sette, A. Elliot Peisert, Olga Botner, Krzysztof Korcyl, G. Ekspong, M. Sessa, Yu. Belokopytov, S. Squarcia, R. Holmes, H. Saarikko, P. Negri, S. Gumenyuk, Gianni Zumerle, Renato Turchetta, T. Tabarelli, R. A. Brenner, S. Maltezos, Giovanni Darbo, A. M. Segar, Flavio Fontanelli, C. De La Vaissiere, E. Lieb, W. Venus, J. Velasco, J.H. Bibby, A. G. Olshevski, Juan Fuster, George Kalkanis, P. B. Renton, Mario Sannino, M. Donszelmann, M. A. Lopez Aguera, R. Mc Nulty, Carmen García, H. De Boeck, B. Jean-Marie, M. Tyndel, R. Lucock, S. Simonetti, M. Begalli, H. Foeth, D. C. Fries, Göran Jarlskog, S. J. Alvsvaag, Andromachi Tsirou, Pierre Billoir, G. Tristram, D. Fassouliotis, Ariella Cattai, Andre Augustinus, R. Gokieli, J. Maillard, P. S. Iversen, E. C. Katsoufis, M. Turala, A. Tilquin, A. Letessier-Selvon, William Trischuk, A. Markou, Marta Calvi, B. Ueberschaer, P. O. Hulth, Paula Eerola, L. Mathis, Vincenzo Canale, Geoffrey Smith, V. Perevozchikov, J. P. Gerber, O. Ullaland, Tiziano Rovelli, R. Dzhelyadin, Pawel Jalocha, Barry King, D. Bertrand, E. Spiriti, P. Delpierre, G. Kantardjian, Leif J. Jönsson, J. Drees, D. Radojicic, R. Frühwirth, U. Trevisan, R. Orava, Fernand Grard, W. D. Apel, P. Folegati, P. Yepes, E. Daubie, A. De Angelis, D. Delikaris, N. van Eijndhoven, J. Werner, Jose M. Benlloch, A. Grant, B. Bouquet, K. W. Glitza, G. Myatt, W. Ruckstuhl, J. Timmermans, G. E. Kalmus, A. Lipniacka, Hans Dijkstra, H. Forsbach, Mogens Dam, Piotr Zalewski, J.M. Gago, B. Franek, Evangelos Gazis, Francesca Romana Cavallo, Borge Svane Nielsen, P. Beltran, J. J. Lozano, M. H. Gros, Daniel Bloch, Jan Ridky, Maria Roberta Monge, H. Palka, G. Skjevling, Ahmimed Ouraou, V.M. Golovatyuk, K. Woschnagg, B. Nijjhar, Mitchell Wayne, C. Ronnqvist, G. Zhang, A. P. Ostankov, V. V. Lapin, V.A. Uvarov, Krzysztof Doroba, Chiara Meroni, Jan Buytaert, C. De Clercq, G. Gopal, A. Zalewska, D. Benedic, J. W. Lamsa, W. T. Meyer, W. J. Murray, M. P. Collins, P. Lutz, M. Dracos, Peter Kluit, Paul Baillon, F. Barao, F. Simonetto, J. N. Jackson, P. Siegrist, E. J. Sanchez, J-C. Marin, P. Kokkinias, Alexander Lincoln Read, M. Szeptycka, Jacques Lemonne, V. Kostukhin, M. Pernicka, I. Hietanen, E. Higon, Spyros Tzamarias, G. Wormser, Jesus Marco, G. Lenzen, M. Fernandez Alonso, G. Leder, Pieter David, Luc Pape, J. Pyythia, B. Åsman, R. Seufert, R. Strub, J. E. Campagne, M. Koratzinos, V. Obraztsov, F. Scuri, I. Roncagliolo, W. Krupinski, M. Schaeffer, M. Davenport, H. J. Hilke, A. M. Wetherell, D. Crennell, F. Mandl, G. Smadja, L. Lanceri, Jorge-Armando Benitez Garcia, B. W. Heck, V. Falaleev, S. Braibant, M. T. Trainor, T. Bolognese, Y. Dufour, P. D. Dauncey, Sandor Czellar, G. Polok, M. S. Bilenky, L.J. Carroll, P. Weilhammer, M. Voutilainen, G. Grosdidier, M. Crozon, Alessandra Romero, A. Ruiz, J. Kesteman, P. F. Honore, W. A. Mitaroff, A. N. Sissakian, R. Llosa, Claudia J. Stubenrauch, F. Richard, C. Matteuzzi, M. Hahn, B. Dalmagne, Laurent Chevalier, S. Almehed, F. Hahn, Milos Lokajicek, E. G. Anassontzis, J. P. Engel, M. V. Castillo Gimenez, G. Damgaard, L. Tortora, F. J. Harris, O. Pingot, J. E. Hooper, Carlos Lacasta, V. Gracco, Krzysztof A. Rybicki, D. Wormald, Pavlos Ioannou, M. A. Houlden, R. Sosnowski, F. Naraghi, V. G. Timofeev, J. E. Augustin, S. Haider, C. Caso, M. Boratav, H. B. Crawley, F. Couchot, J. Bjarne, P. Antilogus, W. Klempt, F. Stichelbaut, R. Mc Kay, F. Adami, R. Keranen, Philippe Charpentier, Francisco Matorras, N. Yamdagni, A. Campion, S. Volponi, R. Zukanovich Funchal, Marc Winter, C. Troncon, H. Wahlen, Ariel Goobar, J. H. Koehne, K. H. Becks, E. Vallazza, G. Vegni, N. Brummer, D. Johnson, J. Derkaoui, W.S.C. Williams, Lucio Cerrito, F. Ledroit, V. Chorowicz, M. Mazzucato, P. Szymanski, A. G. Frodesen, Torsten Paul Ake Åkesson, Z. Hajduk, Maciej Górski, A. Hakansson, W. Dulinski, P. V. Chliapnikov, Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, 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 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), 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 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), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU)
Subjects: Particle physics, Photon, Physics and Astronomy (miscellaneous), Electron–positron annihilation, MASS, 01 natural sciences, Nuclear physics, MUONS, LIMITS, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Engineering (miscellaneous), Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, G-2, LEP, SIMULATION, ELECTRONS, Pair production, Excited state, Physique des particules élémentaires, Mass spectrum, High Energy Physics::Experiment, Particle Physics - Experiment, Lepton
Abstract: Using a data sample of 115000 hadronic Z0 decays, a search was performed for the production of excited charged leptons decaying into an ordinary lepton and one photon. Pair production of excited leptons of mass below 45 GeV/c2 is excluded. From an analysis of the lepton-photon mass spectra this experiment is also able to exclude single production of these particles for masses that reach up to 85 GeV/c2, if the compositeness scale is below 1 TeV. © 1992 Springer-Verlag, 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 1992

21. J/ψ, φ and ρ−ψ production in p+U, O+U and S+U collisions at 200 GeV per nucleon

Author: R. Ferreira, J. Fargeix, R. Cases, G. Landaud, R. Salmeron, S. Silva, A. Guichard, Claude Charlot, T. Chambon, A. Devaux, J.M. Gago, B. Grosdidier, B. Chaurand, C. Gerschel, X. Tarrago, P. Force, Presented by D. Jouan, F. Staley, P. Gorodetzky, C. Baglin, P. Sonderegger, R. Mazi, O. Drapier, J. Y. Grossiord, A. Baldisseri, D. Jouan, A. Bussiere, L. Fredj, R. Haroutunian, M.C. Abreu, M. Bedjidian, J. P. Guillaud, A. Romana, J. Castor, R. Kossakowski, Carlos Lourenco, L. Kluberg, E. Descroix, P. Bordalo, S. Ramos, F. Vazeille, A. Baldit, Philippe Busson, D. Contardo, Joao Varela, X. Felgeyrolles, and P. Liaud
Subjects: Physics, Particle physics, Muon, Meson, High Energy Physics::Phenomenology, Nuclear Theory, Hadron, Nuclear physics, Strange matter, Pair production, Quark–gluon plasma, High Energy Physics::Experiment, Atomic number, Nuclear Experiment, Nucleon
Abstract: The production of muon pairs has been studied in p+U, O+U, and S+U collisions at 200 GeV per nucleon, as a function or the atomic number of the projectile or of the energy density reached. Features of J/ψ, φ, and ρ−ω vector mesons production, which are respectively suppressed, enhanced, and approximately constant as compared to mass continuum events, are in agreement with predictions based on quark‐gluon plasma formation, and put severe constraints on a purely hadronic description of ultrarelativistic nucleus‐nucleus collisions.
Published: 1992

22. A measurement of the lifetime of the tau lepton

Author: P. Abreu, W. Adam, F. Adami, T. Adye, T. Akesson, G.D. Alekseev, P. Allen, S. Almehed, S.J. Alvsvaag, U. Amaldi, E. Anassontzis, P. Antilogus, W.-D. Apel, R.-J. Apsimon, B. Åsman, P. Astier, J.-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, G. Barbiellini, D.Y. Bardin, A. Baroncelli, O. Barring, W. Bartl, M. Battaglia, M.J. Bates, M. Baubillier, K.-H. Becks, C.J. Beeston, M. Begalli, P. Beilliere, Yu. Belokopytov, P. Beltran, D. Benedic, J.M. Benlloch, M. Berggren, D. Bertrand, F. Bianchi, J.H. Bibby, M.S. Bilenky, P. Billoir, J. Bjarne, D. Bloch, S. Blyth, P.N. Bogolubov, T. Bolognese, M. Bonapart, M. Bonesini, W. Bonivento, P.S.L. Booth, M. Boratav, P. Borgeaud, G. Borisov, H. Borner, C. Bosio, B. Bostjancic, O. Botner, B. Bouquet, M. Bozzo, S. Braibant, P. Branchini, K.D. Brand, R.A. Brenner, C. Bricman, R.C.A. Brown, N. Brummer, J.-M. Brunet, L. Bugge, T. Buran, H. Burmeister, J.A.M.A. Buytaert, M. Caccia, M. Calvi, A.J. Camacho Rozas, J.-E. Campagne, A. Campion, T. Camporesi, V. Canale, F. Cao, F. Carena, L. Carroll, C. Caso, E. Castelli, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, L. Cerrito, A. Chan, P. Charpentier, P. Checchia, G.A. Chelkov, L. Chevalier, P. Chliapnikov, V. Chorowicz, R. Cirio, M.P. Clara, P. Collins, J.L. Contreras, R. Contri, G. Cosme, F. Couchot, H.B. Crawley, D. Crennell, G. Crosetti, N. Crosland, M. Crozon, J. Cuevas Maestro, S. Czellar, S. Dagoret, E. Dahl-Jensen, B. Dalmagne, M. Dam, G. Damgaard, G. Darbo, E. Daubie, P.D. Dauncey, M. Davenport, P. David, A. De Angelis, M. De Beer, H. De Boeck, W. De Boer, C. De Clercq, M.D.M. De Fez Laso, N. De Groot, C. De La Vaissiere, B. De Lotto, A. De Min, C. Defoix, D. Delikaris, S. Delorme, P. Delpierre, N. Demaria, J. Derkaoui, L. Di Ciaccio, H. Dijkstra, F. Djama, J. Dolbeau, M. Donszelmann, K. Doroba, M. Dracos, J. Drees, M. Dris, Y. Dufour, W. Dulinski, L.-O. Eek, P.A.-M. Eerola, T. Ekelof, G. Ekspong, A. Elliot Peisert, J.-P. Engel, V. Falaleev, D. Fassouliotis, M. Fernandez Alonso, A. Ferrer, T.A. Filippas, A. Firestone, H. Foeth, E. Fokitis, P. Folegati, F. Fontanelli, K.A.J. Forbes, H. Forsbach, B. Franek, P. Frenkiel, D.C. Fries, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, K. Furnival, H. Furstenau, J. Fuster, J.M. Gago, G. Galeazzi, D. Gamba, C. Garcia, J. Garcia, U. Gasparini, P. Gavillet, E.N. Gazos, J.-P. Gerber, P. Giacomelli, K.-W. Glitza, R. Gokieli, V.M. Golovatyuk, J.J. Gomez Y Cadenas, A. Goobar, G. Gopal, M. Gorski, V. Gracco, A. Grant, F. Grard, E. Graziani, M.-H. Gros, G. Grosdidier, E. Gross, B. Grossetete, S. Gumenyuk, J. Guy, F. Hahn, M. Hahn, S. Haider, Z. Hajduk, A. Hakansson, A. Hallgren, K. Hamacher, G. Hamel De Monchenault, F.J. Harris, B.W. Heck, T. Henkes, I. Herbst, J.J. Hernandez, P. Herquet, H. Herr, I. Hietanen, C.O. Higgins, E. Higon, H.J. Hilke, S.D. Hodgson, T. Hofmokl, R. Holmes, S.-O. Holmgren, D. Holthuizen, P.F. Honore, J.E. Hooper, R. Horisberger, M. Houlden, J. Hrubec, P.O. Hulth, K. Hultqvist, D. Husson, B.D. Hyams, P. Ioannou, D. Isenhower, P.-S. Iversen, J.N. Jackson, P. Jalocha, G. Jarlskog, P. Jarry, B. Jean-Marie, E.K. Johansson, D. Johnson, M. Jonker, L. Jonsson, P. Juillot, G. Kalkanis, G. Kalmus, G. Kantardjian, F. Kapusta, S. Katsanevas, E.C. Katsoufis, R. Keranen, J. Kesteman, B.A. Khomenko, N.N. Khovanski, B. King, N.J. Kjaer, H. Klein, W. Klempt, A. Klovning, P. Kluit, J.H. Koehne, B. Koene, P. Kokkinias, M. Kopf, M. Koratzinos, K. Korcyl, A.V. Korytov, B. Korzen, V. Kostukhin, C. Kourkoumelis, T. Kreuzberger, J. Krolikowski, U. Kruener-Marquis, W. Krupinski, W. Kucewicz, K. Kurvinen, C. Lacasta, C. Lambropoulos, J.W. Lamsa, L. Lanceri, V. Lapin, J.-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, J. Lemonne, G. Lenzen, V. Lepeltier, A. Letessier-Selvon, D. Liko, E. Lieb, E. Lillethun, J. Lindgren, A. Lipniacka, I. Lippi, R. Llosa, B. Loerstad, M. Lokajicek, J.G. Loken, M.A. Lopez Aguera, A. Lopez-Fernandez, M. Los, D. Loukas, A. Lounis, J.J. Lozano, R. Lucock, P. Lutz, L. Lyons, G. Maehlum, J. Maillard, A. Maltezos, S. Maltezos, F. Mandl, J. Marco, M. Margoni, J.-C. Marin, A. Markou, S. Marti, L. Mathis, F. Matorras, C. Matteuzzi, G. Matthiae, M. Matveev, M. Mazzucato, M. Mc Cubbin, R. Mc Nulty, E. Menichetti, G. Meola, C. Meroni, W.T. Meyer, M. Michelotto, W.A. Mitaroff, G.V. Mitselmakher, U. Mjoernmark, T. Moa, R. Moeller, K. Moenig, M.R. Monge, P. Morettini, H. Mueller, H. Muller, W.J. Murray, G. Myatt, F. Naraghi, U. Nau-Korzen, F.L. Navarria, P. Negri, B.S. Nielsen, B. Nijjhar, V. Nikolaenko, V. Obraztsov, A.G. Olshevski, R. Orava, A. Ostankov, A. Ouraou, R. Pain, H. Palka, T. Papadopoulou, L. Pape, A. Passeri, M. Pegoraro, V. Perevozchikov, M. Pernicka, A. Perrotta, F. Pierre, M. Pimenta, O. Pingot, A. Pinsent, M.E. Pol, G. Polok, P. Poropat, P. Privitera, A. Pullia, J. Pyyhtia, D. Radojicic, S. Ragazzi, P.N. Ratoff, A.L. Read, N.G. Redaelli, M. Regler, D. Reid, P.B. Renton, L.K. Resvanis, F. Richard, M. Richardson, J. Ridky, G. Rinaudo, I. Roditi, A. Romero, I. Roncagliolo, P. Ronchese, C. Ronnqvist, E.I. Rosenberg, U. Rossi, E. Rosso, P. Roudeau, T. Rovelli, W. Ruckstuhl, V. Ruhlmann, A. Ruiz, K. Rybicki, H. Saarikko, Y. Sacquin, J. Salt, E. Sanchez, J. Sanchez, M. Sannino, M. Schaeffer, S. Schael, H. Schneider, M.A.E. Schyns, F. Scuri, A.M. Segar, R. Sekulin, M. Sessa, G. Sette, R. Seufert, R.C. Shellard, P. Siegrist, S. Simonetti, F. Simonetto, A.N. Sissakian, T.B. Skaali, G. Skjevling, G. Smadja, G.R. Smith, N. Smirnov, R. Sosnowski, T.S. Spassoff, E. Spiriti, S. Squarcia, H. Staeck, C. Stanescu, G. Stavropoulos, F. Stichelbaut, A. Stocchi, J. Strauss, R. Strub, C.J. Stubenrauch, M. Szczekowski, M. Szeptycka, P. Szymanski, T. Tabarelli, S. Tavernier, G.E. Theodosiou, A. Tilquin, J. Timmermans, V.G. Timofeev, L.G. Tkatchev, T. Todorov, D.Z. Toet, L. Tortora, M.T. Trainor, D. Treille, U. Trevisan, W. Trischuk, G. Tristam, C. Troncon, A. Tsirou, E.N. Tsyganov, M. Turala, R. Turchetta, M.-L. Turluer, T. Tuuva, I.A. Tyapkin, M. Tyndel, S. Tzamarias, B. Ueberschaer, S. Ueberschaer, O. Ullaland, V.A. Uvarov, G. Valenti, E. Vallazza, J.A. Valls Ferrer, G.W. Van Apeldoorn, P. Van Dam, W.K. Van Doninck, N. Van Eijndhoven, C. Vander Velde, J. Varela, P. Vaz, G. Vegni, L. Ventura, W. Venus, F. Verbeure, L.S. Vertogradov, L. Vibert, D. Vilanova, E.V. Vlasov, A.S. Vodopyanov, M. Vollmer, S. Volponi, G. Voulgaris, M. Voutilainen, V. Vrba, H. Wahlen, C. Walck, F. Waldner, M. Wayne, P. Weilhammer, J. Werner, A.M. Wetherell, J.H. Wickens, J. Wikne, G.R. Wilkinson, W.S.C. Williams, M. Winter, D. Wormald, G. Wormser, K. Woschnagg, N. Yamdagni, P. Yepes, A. Zaitsev, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, G. Zhang, N.I. Zimin, M. Zito, R. Zitoun, R. Zukanovich Funchal, G. Zumerle, J. Zuniga, Flores, Sylvie, 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), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Delphi, Collaboration, Abreu, P., Adam, W., and Canale, Vincenzo
Subjects: Nuclear and High Energy Physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], 010308 nuclear & particles physics, 0103 physical sciences, Physique des particules élémentaires, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, 010306 general physics, 01 natural sciences, 7. Clean energy, DETECTOR, Particle Physics - Experiment
Abstract: The lifetime of the tau lepton has been measured by two independent methods using a silicon microvertex detector installed in the DELPHI detector. The signed impact parameter distribution of the one prong decays yielded a lifetime of ττ = 321 ± 36 (stat.) ± 16 (syst.) fs, while the decay length distribution of three prong decays gave the result ττ = 310 ± 31 (stat.) ± 9 (syst.) fs. The final value of the combined result was ττ = 314 ± 25 fs. The ratio of the Fermi coupling constant from tau decay relative to that from muon decay was found to be 0.95 ± 0.04, compatible with the hypothesis of lepton universality., 0, info:eu-repo/semantics/published
Published: 1991

23. Charged particle multiplicity distributions in restricted rapidity intervals in Z0 hadronic decays

Author: P. Van Dam, Renato Turchetta, G. E. Theodosiou, S. C. Blyth, Francesca Romana Cavallo, G. Wilkinson, M.D.M. De Fez Laso, Mitchell Wayne, A. Tilquin, J. J. Lonzano, Barry King, L. DiCiaccio, E. Spiriti, V. V. Lapin, L. Mathis, Lucio Cerrito, R. Frühwirth, J. Timmermans, Natale Demaria, W. J. Murray, T. Todorov, A. Lipniacka, P. Kapusta, Paul Baillon, M. L. Turluer, D. Reid, Alexander Lincoln Read, M. Szeptycka, G. Meola, N. Degroot, Gianni Zumerle, George Kalkanis, P. B. Renton, P. Poropat, Andromachi Tsirou, G. Crosetti, R. Dzehlyadin, V. Ruhlmann, G. D. Alekseev, Andre Augustinus, M. Richardson, J. E. Augustin, B Delotto, D. C. Fries, M. Baubillier, G. Vegni, M. Battaglia, N. Brummer, T. Tabarelli, E. Lieb, P. Abreu, P. Borgeaud, G. Wormser, D. Fassouliotis, Ariella Cattai, O. Ullaland, Leif J. Jönsson, U. Trevisan, T. Bolognese, V. Canale, B. Franek, Andrea Perrotta, G. Sette, F. Alted, A. Elliot Peisert, L. Bugge, A. M. Zaitsev, Alexander Vodopyanov, B. Koene, C. J. Beeston, H. Herr, L. G. Tkatchev, F. Bianchi, A. J. Camacho Rozas, J. Pyyhtia, F. Naraghi, D. J. Holthuizen, D. Isenhower, A. Pinsent, D. Y. Bardin, D. Z. Toet, S. Squarcia, R. Holmes, H. Saarikko, S. Haider, P. D. Dauncey, Sandor Czellar, Kjell Fransson, K. Hultqvist, Paolo Morettini, M. S. Bilenky, D. Johnson, L.J. Carroll, J. G. Loken, Marta Calvi, Tord Ekelof, H. Staeck, G. Polok, K. Furnival, M. Tyndel, Georgios Stavropoulos, Geoffrey Smith, P. David, Edoardo Castelli, J. Cuevas Maestro, F. Pierre, J. Derkaoui, A. Passeri, C. Caso, J. Maillard, B. Loerstad, Stavros Maltezos, R. Lucock, P. Allen, W.S.C. Williams, D. Vilanova, Borge Svane Nielsen, E. Menichetti, Itzhak Roditi, M. H. Gros, E. K. Johansson, Wolfgang Adam, Stefano Ragazzi, D. Bertrand, O. Barring, G. Ekspong, F. Ledroit, W.H. Range, V. Perevozchikov, Krzysztof Doroba, A. D. Angelis, M. J. Bates, Chiara Meroni, Jan Buytaert, P. Weilhammer, Theodora Papadopoulou, H. Burmeister, F. Cao, Tiziano Rovelli, P. Folegati, Yu. Belokopytov, N. Crosland, R. McKay, Giovanni Darbo, W. Ruckstuhl, Toralf Bernhard Skaali, H. B. Crawley, G. Hamel de Monchenault, S. O. Holmgren, W. Krupinski, Josef Strauss, F. Stichelbaut, H. DeBoeck, P. Beltran, N. Vishnevsky, L. S. Vertogradov, Robert S. Brown, P. Vaz, S. Simonetti, P. Beiliere, G. Smadja, G. Kantardjian, D. Benedic, W. Venus, Peter Kluit, H. J. Hilke, M. Bozzo, Klaus Hamacher, E. G. Anassontzis, Tiziano Camporesi, G. Galeazzi, M. Begalli, G. Cosme, M. Kopf, K. Moenig, R. Moeller, Antonio Ferrer, J. P. Engel, M. V. Castillo Gimenez, M. Mazzucato, Mario Sannino, W. Kucewicz, A. Lounis, A. Klovning, P. Jalocha, S. Biagi, P. Szymanski, A. Lopez-Fernandez, U. Mjoernmark, C. Bosio, R. A. Brenner, C. Vander Velde, M. Boratav, D. Gamba, G. Voulgaris, N. G. Redaelli, S. J. Alvsvaag, F. Adami, Martino Margoni, E. Fokitis, M. A. Lopez Aguera, B. Bouquet, G. Damgaard, A. Demin, L. O. Eek, Jon Christopher Wikne, Roberto Cirio, R. C. Shellard, Josef Hrubec, Tuure Tuuva, C. Defoix, A. M. Segar, R. Keranen, L. K. Resvanis, F. Fulda-Quenzer, H. P. Borner, Clara Troncon, O. Pingot, Matteo Pegoraro, A. G. Frodesen, E. Graziani, P. Frenkiel, B. Korzen, K. Rybicki, F. Waldner, V. Gracco, C. Walck, J. M. Brunet, Tomaradze, F. Simonetto, F. Kapusta, G. Leder, P. S. Iversen, F. Fontanelli, Ugo Gasparini, Patrick Jarry, G. Rinaudo, B. Jean-Marie, Philippe Charpentier, Francisco Matorras, C. De La Vaissiere, Pavlos Ioannou, A. Ostankow, F. Verbeure, Torsten Paul Ake Åkesson, M. Bonapart, S. D. Hodgson, Massimo Caccia, Andrey Korytov, Mogens Dam, N. Yamdagni, Z. Hajduk, Stefaan Tavernier, Maciej Górski, H. Forsbach, C. Ronnqvist, G. Zhang, T. Buran, K. D. Brand, Vladimir Nikolaenko, Guido Barbiellini, J. Velasco, J. Guy, B. Åsman, N. I. Zimin, D. Crennell, F. Mandl, M. A. Houlden, R. Orava, Fernand Grard, Winfried Mitaroff, Louis Lyons, A. Hakansson, Jan Krolikowski, N. N. Khovanski, G. W. Van Apeldoorn, P. Siegrist, W. Bartl, R. Pain, L. Ventura, Tim Adye, A. Romero, F. Couchot, J. A. Valls Ferrer, J-C. Marin, I. Herbst, W. Dulinski, P. V. Chliapnikov, J. P. Laugier, F. Djama, Olga Botner, C. Lambropoulos, Ugo Amaldi, Krzysztof Korcyl, B. W. Heck, B. D'Almagne, Spyros Tzamarias, J. Bjarne, Juan Fuster, F. Richard, C. Matteuzzi, M. Hahn, P. Antilogus, B.D. Hyams, V. Kostukhin, V. Chorowicz, G. A. Chelkov, W. Klempt, S. Almehed, I. Lippi, Hans Muller, P. N. Bogolubov, M. Pimenta, B. A. Khomenko, Carmen García, M. Davenport, E. I. Rosenberg, F. Hahn, A. Pullia, E. Zevgolatakos, H. Foeth, Demetrios Loukas, Francesco Navarria, E.N. Tsyganov, J. H. Wickens, Jose Luis Contreras, A. Campion, S. Volponi, Christine Kourkoumelis, E. Dahl-Jensen, J. Zúñiga, H. Furstenau, K. Kurvinen, Javier Sánchez, P. O. Hulth, R. Zukanovich Funchal, Marc Winter, P. Delpierre, E. Daubie, Luc Pape, H. Wahlen, Ariel Goobar, J. H. Koehne, D. Radojicic, G. Myatt, T. Hofmokl, Marek Szczekowski, E. Rosso, H. Klein, J.M. Gago, P. Collins, D. Delikaris, K. H. Becks, N. van Eijndhoven, J. Werner, Daniel Bloch, P. Lutz, Joao Varela, J. J. Gomez Y Cadenas, Ahmimed Ouraou, V.M. Golovatyuk, S. Ueberschaer, W. DeBoer, A. Maltezos, V. G. Timoveev, M. Michelotto, K. Woschnagg, E. C. Katsoufis, G. Gopal, J. Dolbeau, P. Bambade, R. Sekulin, E. J. Sanchez, T. Kreuzberger, P.S.L. Booth, P. N. Ratoff, J. J. Hernandez, T. Moa, G. Maehlum, W. Van Doninck, A. G. Olshevski, Charles Bricman, William Trischuk, A. Markou, A. Stocchi, Maria Roberta Monge, A. Zalewska, W. T. Meyer, J. P. Gerber, Jacques Lemonne, M. P. Clara, K. W. Glitza, M. Schaeffer, Maria Elena Pol, S. Katsanevas, B. Nijjhar, A. Firestone, Jorge-Armando Benitez Garcia, T. A. Filippas, M. Vollmer, U. Rossi, Paolo Giacomelli, M. Debeer, M. Fernandez Alonso, M. Regler, S. Delorme, M. Zito, V. Obraztsov, E. V. Viasov, I. Roncagliolo, B. Grossetete, Allan Hallgren, J. E. Hooper, Giovanni Valenti, P. Yepes, U. Kruener-Marquis, R. McNulty, S. Braibant, Paolo Ronchese, N. J. Kjaer, H. Mueller, M. T. Trainor, Paula Eerola, G. E. Kalmus, H. Palka, G. Skjevling, J. W. Lamsa, F. Barao, E. Higon, R. Seufert, F. Scuri, A. M. Wetherell, L. Lanceri, Laurent Chevalier, Milos Lokajicek, P. Jullot, L. Tortora, F. J. Harris, D. Wormald, Pierre Billoir, G. Matthiae, M. Chapkin, Jose M. Benlloch, A. Grant, Hans Dijkstra, P. Privitera, R. Sosnowski, M. Jonker, Mikael Berggren, M. Los, V. Lepeltier, Paolo Checchia, Ph. Gavillet, Piotr Zalewski, C. Declercq, V.A. Uvarov, M. McCubbin, J. N. Jackson, M. Voutilainen, G. Grosdidier, P. Kokkinias, M. Crozon, A. Ruiz, J. Kesteman, P. F. Honore, A. N. Sissakian, R. Llosa, Claudia J. Stubenrauch, P. Negri, J.H. Bibby, J. Drees, Göran Jarlskog, Evangelos Gazis, A. Letessier-Selvon, Guenakh Mitselmakher, M. Dracos, M. Bonesini, Y. Sacquin, W. D. Apel, G. Tristam, José Salt, L. Vibert, Cristian Stanescu, P. Branchini, V. Vrba, H. Schneider, D. Husson, I. A. Tyapkin, T. S. Spassoff, R. Lauhakangas, M. Sessa, M. Donszelmann, R. Gokieli, R. Zitoun, P. Herquet, R. Contri, U. Nau-Korzen, M. Turala, Manolis Dris, M. Pernicka, I. Hietanen, P. Roudeau, Jesus Marco, G. Lenzen, E. Lillethun, R. Strub, J. E. Campagne, M. Koratzinos, Dietrich Liko, Daniel Treille, J. Ridky, J. Lindgren, Nikita Smirnov, A. Baroncelli, S. Dagoret, 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), 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), Abreu, P, Adam, W, Adami, F, Adye, T, Akesson, T, Alekseev, G, Allen, P, Almehed, S, Alted, F, Alvsvaag, S, Amaldi, U, Anassontzis, E, Antilogus, P, Apel, W, Åsman, B, Augustin, J, Augustinus, A, Baillon, P, Bambade, P, Barao, F, Barbiellini, G, Bardin, D, Baroncelli, A, Barring, O, Bartl, W, Battaglia, M, Bates, M, Baubillier, M, Becks, K, Beeston, C, Begalli, M, Beiliere, P, Belokopytov, Y, Beltran, P, Benedic, D, Benlloch, J, Berggren, M, Bertrand, D, Biagi, S, Bianchi, F, Bibby, J, Bilenky, M, Billoir, P, Bjarne, J, Bloch, D, Blyth, S, Bogolubov, P, Bolognese, T, Bonapart, M, Bonesini, M, Booth, P, Boratav, M, Borgeaud, P, Borner, H, Bosio, C, Botner, O, Bouquet, B, Bozzo, M, Braibant, S, Branchini, P, Brand, K, Brenner, R, Bricman, C, Brown, R, Brummer, N, Brunet, J, Bugge, L, Buran, T, Burmeister, H, Buytaert, J, Caccia, M, Calvi, M, Camacho Rozas, A, Campagne, J, Campion, A, Camporesi, T, Canale, V, Cao, F, Carroll, L, Caso, C, Castelli, E, Castillo Gimenez, M, Cattai, A, Cavallo, F, Cerrito, L, Chapkin, M, Charpentier, P, Checchia, P, Chelkov, G, Chevalier, L, Chliapnikov, P, Chorowicz, V, Cirio, R, Clara, M, Collins, P, Contreras, J, Contri, R, Cosme, G, Couchot, F, Crawley, H, Crennell, D, Crosetti, G, Crosland, N, Crozon, M, Cuevas Maestro, J, Czellar, S, Dagoret, S, Dahl-Jensen, E, Dalmagne, B, Dam, M, Damgaard, G, Darbo, G, Daubie, E, Dauncey, P, Davenport, M, David, P, Angelis, A, Debeer, M, Deboeck, H, Deboer, W, Declercq, C, De Fez Laso, M, Degroot, N, De La Vaissiere, C, Delotto, B, Defoix, C, Delikaris, D, Delorme, S, Delpierre, P, Demaria, N, Demin, A, Derkaoui, J, Diciaccio, L, Dijkstra, H, Djama, F, Dolbeau, J, Donszelmann, M, Doroba, K, Dracos, M, Drees, J, Dris, M, Dulinski, W, Dzehlyadin, R, Eek, L, Eerola, P, Ekelof, T, Ekspong, G, Elliot Peisert, A, Engel, J, Fassouliotis, D, Fernandez Alonso, M, Ferrer, A, Filippas, T, Firestone, A, Foeth, H, Fokitis, E, Folegati, P, Fontanelli, F, Forsbach, H, Franek, B, Fransson, K, Frenkiel, P, Fries, D, Frodesen, A, Fruhwirth, R, Fulda-Quenzer, F, Furnival, K, Furstenau, H, Fuster, J, Gago, J, Galeazzi, G, Gamba, D, Garcia, C, Garcia, J, Gasparini, U, Gavillet, P, Gazis, E, Gerber, J, Giacomelli, P, Glitza, K, Gokieli, R, Golovatyuk, V, Cadenas, J, Goobar, A, Gopal, G, Gorski, M, Gracco, V, Grant, A, Grard, F, Graziani, E, Gros, M, Grosdidier, G, Grossetete, B, Guy, J, Hahn, F, Hahn, M, Haider, S, Hajduk, Z, Hakansson, A, Hallgren, A, Hamacher, K, Hamel De Monchenault, G, Harris, F, Heck, B, Herbst, I, Hernandez, J, Herquet, P, Herr, H, Hietanen, I, Higon, E, Hilke, H, Hodgson, S, Hofmokl, T, Holmes, R, Holmgren, S, Holthuizen, D, Honore, P, Hooper, J, Houlden, M, Hrubec, J, Hulth, P, Hultqvist, K, Husson, D, Hyams, B, Ioannou, P, Isenhower, D, Iversen, P, Jackson, J, Jalocha, P, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E, Johnson, D, Jonker, M, Jonsson, L, Jullot, P, Kalkanis, G, Kalmus, G, Kantardjian, G, Kapusta, F, Kapusta, P, Katsanevas, S, Katsoufis, E, Keranen, R, Kesteman, J, Khomenko, B, Khovanski, N, King, B, Kjaer, N, Klein, H, Klempt, W, Klovning, A, Kluit, P, Koehne, J, Koene, B, Kokkinias, P, Kopf, M, Koratzinos, M, Korcyl, K, Korytov, A, Korzen, B, Kostukhin, V, Kourkoumelis, C, Kreuzberger, T, Krolikowski, J, Kruener-Marquis, U, Krupinski, W, Kucewicz, W, Kurvinen, K, Lambropoulos, C, Lamsa, J, Lanceri, L, Lapin, V, Laugier, J, Lauhakangas, R, Leder, G, Ledroit, F, Lemonne, J, Lenzen, G, Lepeltier, V, Letessier-Selvon, A, Liko, D, Lieb, E, Lillethun, E, Lindgren, J, Lipniacka, A, Lippi, I, Llosa, R, Loerstad, B, Lokajicek, M, Loken, J, Lopez Aguera, M, Lopez-Fernandez, A, Los, M, Loukas, D, Lounis, A, Lonzano, J, Lucock, R, Lutz, P, Lyons, L, Maehlum, G, Maillard, J, Maltezos, A, Maltezos, S, Mandl, F, Marco, J, Margoni, M, Marin, J, Markou, A, Mathis, L, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, M, Mccubbin, M, Mckay, R, Mcnulty, R, Menichetti, E, Meola, G, Meroni, C, Meyer, W, Michelotto, M, Mitaroff, W, Mitselmakher, G, Mjoernmark, U, Moa, T, Moeller, R, Moenig, K, Monge, M, Morettini, P, Mueller, H, Muller, H, Murray, W, Myatt, G, Naraghi, F, Nau-Korzen, U, Navarria, F, Negri, P, Nielsen, B, Nijjhar, B, Nikolaenko, V, Obraztsov, V, Olshevski, A, Orava, R, Ostankow, A, Ouraou, A, Pain, R, Palka, H, Papadopoulou, T, Pape, L, Passeri, A, Pegoraro, M, Perevozchikov, V, Pernicka, M, Perrotta, A, Pierre, F, Pimenta, M, Pingot, O, Pinsent, A, Pol, M, Polok, G, Poropat, P, Privitera, P, Pullia, A, Pyyhtia, J, Radojicic, D, Ragazzi, S, Range, W, Ratoff, P, Read, A, Redaelli, N, Regler, M, Reid, D, Renton, P, Resvanis, L, Richard, F, Richardson, M, Ridky, J, Rinaudo, G, Roditi, I, Romero, A, Roncagliolo, I, Ronchese, P, Ronnqvist, C, Rosenberg, E, Rossi, U, Rosso, E, Roudeau, P, Rovelli, T, Ruckstuhl, W, Ruhlmann, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Y, Salt, J, Sanchez, E, Sanchez, J, Sannino, M, Schaeffer, M, Schneider, H, Scuri, F, Segar, A, Sekulin, R, Sessa, M, Sette, G, Seufert, R, Shellard, R, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A, Skaali, T, Skjevling, G, Smadja, G, Smith, G, Smirnov, N, Sosnowski, R, Spassoff, T, Spiriti, E, Squarcia, S, Staeck, H, Stanescu, C, Stavropoulos, G, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stubenrauch, C, Szczekowski, M, Szeptycka, M, Szymanski, P, Tabarelli, T, Tavernier, S, Theodosiou, G, Tilquin, A, Timmermans, J, Timoveev, V, Tkatchev, L, Todorov, T, Toet, D, Tomaradze, N, Tortora, L, Trainor, M, Treille, D, Trevisan, U, Trischuk, W, Tristam, G, Troncon, C, Tsirou, A, Tsyganov, E, Turala, M, Turchetta, R, Turluer, M, Tuuva, T, Tyapkin, I, Tyndel, M, Tzamarias, S, Ueberschaer, S, Ullaland, O, Uvarov, V, Valenti, G, Valls Ferrer, J, Van Apeldoorn, G, Van Dam, P, Van Doninck, W, Van Eijndhoven, N, Vander Velde, C, Varela, J, Vaz, P, Vegni, G, Velasco, J, Ventura, L, Venus, W, Verbeure, F, Vertogradov, L, Vibert, L, Vilanova, D, Vishnevsky, N, Viasov, E, Vodopyanov, A, Vollmer, M, Volponi, S, Voulgaris, G, Voutilainen, M, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Wayne, M, Weilhammer, P, Werner, J, Wetherell, A, Wickens, J, Wikne, J, Wilkinson, G, Williams, W, Winter, M, Wormald, D, Wormser, G, Woschnagg, K, Yamdagni, N, Yepes, P, Zaitsev, A, Zalewska, A, Zalewski, P, Zevgolatakos, E, Zhang, G, Zimin, N, Zito, M, Zitoun, R, Zukanovich Funchal, R, Zumerle, G, Zuniga, J, Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and 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)
Subjects: COLLISIONS, Particle physics, E+E ANNIHILATION, Physics and Astronomy (miscellaneous), LUND MONTE-CARLO, Electron–positron annihilation, Hadron, Elementary particle, PETRA ENERGIES, 01 natural sciences, 250 GEV/C, Nuclear physics, DEPENDENCE, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Rapidity, Nuclear Experiment, 010306 general physics, Parton shower, Engineering (miscellaneous), JET PRODUCTION-RATES, FRAGMENTATION, QCD, RESONANCE, Physics, 010308 nuclear & particles physics, Multiplicity (mathematics), Charged particle, Gluon, Physique des particules élémentaires, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: The multiplicity distributions of charged particles in restricted rapidity intervals in Z0 hadronic decays measured by the DELPHI detector are presented. The data reveal a shoulder structure, best visible for intervals of intermediate size, i.e. for rapidity limits around ±1.5. The whole set of distributions including the shoulder structure is reproduced by the Lund Parton Shower model. The structure is found to be due to important contributions from 3-and 4-jet events with a hard gluon jet. A different model, based on the concept of independently produced groups of particles, "clans", fluctuating both in number per event and particle content per clan, has also been used to analyse the present data. The results show that for each interval of rapidity the average number of clans per event is approximately the same as at lower energies. © 1991 Springer-Verlag., 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 1991

24. Search for low mass Higgs bosons produced in Z$^0$ decays

Author: B. De Lotto, G. Crosetti, Evgueni Vlasov, H. Herr, R. Sekulin, T. Moa, William Trischuk, Tiziano Rovelli, G. Kantardjian, H. Forsbach, G. Zhang, V. Kostukhin, Luc Pape, Itzhak Roditi, F. Stichelbaut, B. Lorstad, F. Adami, N. Crosland, Klaus Hamacher, M. Fernandez Alonso, R. Keranen, Philippe Charpentier, Francisco Matorras, N. Yamdagni, V. Obraztsov, A.G. Olshevsky, S. Gumenyuk, R. A. Brenner, D. J. Holthuizen, S. J. Alvsvaag, A. Campion, D. Bertrand, A. Lopez-Fernandez, R. Zukanovich Funchal, Marc Winter, R. Mcnulty, P. Abreu, K. Furnival, Ugo Gasparini, P. Folegati, J. P. Gerber, R. McKay, W. Ruckstuhl, Mogens Dam, Tuure Tuuva, Clara Troncon, H. Wahlen, Ariel Goobar, Guido Barbiellini, J. Guy, P. Beltran, K. W. Glitza, B. Nijjhar, Tim Adye, Wolfgang Adam, K. H. Becks, C. J. Beeston, E. Vallazza, V. Canale, E. Chernyaev, P. Siegrist, E. Menichetti, V. Castillo Gimenez, J-C. Marin, Stefano Ragazzi, W.H. Range, A. Pinsent, A. Zalewska, A.N. Sisakian, S. Squarcia, M. Richardson, F. Couchot, F. Cao, W. T. Meyer, Spyros Tzamarias, R. Holmes, H. Saarikko, G. Hamel de Monchenault, M. Kopf, M. Pernicka, N. Vishnevsky, J. Bjarne, Josef Strauss, N. I. Zimin, M. Bonapart, Jacques Lemonne, Jesus Marco, G. Lenzen, R. Strub, J. E. Campagne, R. Zitoun, W. Venus, E. K. Johansson, M. Koratzinos, J. Velasco, P. Antilogus, W. A. Mitaroff, G. Galeazzi, E. Lieb, Jon Christopher Wikne, C. Defoix, F. Fulda-Quenzer, M. Davenport, C. Vander Velde, M. Baubillier, W. Klempt, F. Hahn, A. Ferrer, D. Fassouliotis, Ariella Cattai, V. Ronzhin, F. Alted, K. Mönig, W. Kucewicz, F. Richard, Louis Lyons, Martino Margoni, P. Negri, A. A. Rademakers, G. A. Chelkov, Leif J. Jönsson, E. Graziani, J. M. Brunet, A. M. Zaitsev, E. Fokitis, G. D. Alekseev, Jorge-Armando Benitez Garcia, C. Matteuzzi, M. Hahn, J.H. Bibby, F. Bianchi, Kjell Fransson, C. Lambropoulos, Ugo Amaldi, W. De Boer, E. Zevgolatakos, W.S.C. Williams, Demetrios Loukas, Göran Jarlskog, U. Trevisan, S. O. Holmgren, A. Passeri, S. D. Hodgson, L. S. Vertogradov, S. Almehed, A. Letessier-Selvon, F. Ledroit, G. Stavropoulos, N. Magnussen, T. Buran, V. Chorowicz, B. Korzen, K. Hultqvist, A. Firestone, O. Doll, W. D. Apel, J.H. Kohne, Edoardo Castelli, B. Franek, G. Matthiae, V. Ruhlmann, V. Lapchine, L. O. Eek, R. C. Shellard, Josef Hrubec, Olga Botner, Krzysztof Korcyl, L. Bugge, T. Bolognese, G. Ekspong, T. Kreuzberger, M. Vollmer, Giovanni Darbo, A. M. Segar, S. Braibant, U. Rossi, Th. D. Papadopoulou, M. Mazzucato, Guenakh Mitselmakher, D. Vilanova, A. J. Camacho Rozas, J. Cuevas Maestro, E. G. Anassontzis, J. P. Engel, Paolo Giacomelli, A. Baroncelli, S. Dagoret, E. Lillestol, P. Szymanski, D. Z. Toet, P. S. Iversen, F. Fontanelli, S. Simonetti, G. Mahlum, M. Begalli, M. T. Trainor, S. Delorme, H. Foeth, P. D. Dauncey, Sandor Czellar, T. Todorov, M. Schaffer, P. Vaz, L. Tkachev, G. Vegni, G. Damgaard, N. Brummer, Renato Turchetta, G. Polok, H. Stack, C. De La Vaissiere, F. Udo, J. Pyyhtia, D. Johnson, R. Lucock, M. L. Turluer, D. Reid, Daniel Treille, A. Lounis, O. Pingot, A. De Angelis, D. Delikaris, B. Grossetete, Allan Hallgren, N. van Eijndhoven, J. Drees, J. Werner, V. Gracco, Daniel Bloch, L. Vibert, Pawel Jalocha, Barry King, N.N. Khovansky, S. Biagi, Giovanni Valenti, H. P. Borner, E. Spiriti, R. Frühwirth, Ahmimed Ouraou, V.M. Golovatyuk, G. E. Theodosiou, A. G. Frodesen, Cristian Stanescu, Gianni Zumerle, P. Branchini, M. Kostrikov, J. Timmermans, H. Palka, G. Skjevling, H. Schneider, Torsten Paul Ake Åkesson, Evangelos Gazis, R. Lauhakangas, P. Poropat, G. Wilkinson, M.D.M. De Fez Laso, Pavlos Ioannou, J. W. Lamsa, Andromachi Tsirou, Natale Demaria, Piet Van Dam, Z. Hajduk, F. Barao, B. Koene, Andre Augustinus, A. Wehr, J. Lindgren, Maciej Górski, M. Sessa, L. Mathis, A. Hakansson, A. Markou, Paolo Morettini, J. G. Loken, P. Beilliere, M. A. Houlden, E. Higon, R. Seufert, M. Dracos, W. Dulinski, P. V. Chliapnikov, J. E. Augustin, George Kalkanis, M. Donszelmann, F. Scuri, P. B. Renton, Paul Baillon, R. Pain, O. Barring, A. M. Wetherell, Alexander Lincoln Read, B. Bouquet, M. Szeptycka, Tiziano Camporesi, M. De Beer, R. Gokieli, D. C. Fries, K. Belous, G. Wormser, Pieter David, S. Haider, M. Bonesini, G. Cosme, L. Lanceri, Y. Sacquin, N. G. Redaelli, L. Di Ciaccio, M. Turala, Marco Bozzo, E. C. Katsoufis, W. Krupinski, Marta Calvi, Geoffrey Smith, P. Borgeaud, C. Caso, U. Kruener-Marquis, H. J. Hilke, P. Frenkiel, Paolo Ronchese, G. W. Van Apeldoorn, P. Herquet, Pierre Astier, L. Ventura, M. Boratav, F. Waldner, K. D. Brand, H. B. Crawley, R. Contri, V. Vrba, U. Nau-Korzen, C. Walck, G. Tristram, Paula Eerola, Hans Muller, Manolis Dris, Stefaan Tavernier, D. Husson, P. Roudeau, Christine Kourkoumelis, G. E. Kalmus, E. Dahl-Jensen, I. A. Tyapkin, E. Lillethun, Francesca Romana Cavallo, Mario Sannino, S. Maltezos, M. A. Lopez Aguera, Mitchell Wayne, R. Monge, V. V. Lapin, C. De Clercq, M. Jonker, R. Orava, Fernand Grard, A. B. Fenyuk, Mikael Berggren, M. Los, Andrea Perrotta, G. Sette, V. Lepeltier, Paolo Checchia, P. Bogolyubov, Ph. Gavillet, P. Privitera, H. De Boeck, B. Jean-Marie, M. Tyndel, Piotr Zalewski, J. Maillard, V.A. Uvarov, M. McCubbin, V. Perevozchikov, Pierre Billoir, R. Dzhelyadin, Jose M. Benlloch, A. Grant, M.I. Laakso, Hans Dijkstra, A. Pullia, H. Furstenau, T. Hofmokl, Marek Szczekowski, E. Rosso, H. Klein, T. Spassof, M. J. Bates, Toralf Bernhard Skaali, D. Gamba, G. Voulgaris, F. Verbeure, Ulf Mjörnmark, I. Herbst, Juan Fuster, F. Simonetto, F. Kapusta, A. Tilquin, G. Leder, P. Yepes, B. Åsman, D. Crennell, F. Mandl, G. Smadja, B. W. Heck, Dmitri Bardin, K. Woschnagg, V. Falaleev, Javier Sánchez, M. S. Bilenky, G. Gopal, L.J. Carroll, E. J. Sanchez, P. Weilhammer, I. Belokopytov, I. Lippi, E.N. Tsyganov, J. H. Wickens, Jose Luis Contreras, D. Radojicic, Jan Ridky, P. Lutz, J. J. Hernandez, P. O. Hulth, P. Delpierre, E. Daubie, P. Laurikainen, G. Myatt, Patrick Jarry, G. Rinaudo, J. Salt, J. N. Jackson, B.D. Hyams, E. I. Rosenberg, J.M. Gago, K. Kurvinen, Tord Ekelof, A. Klovning, C. Bosio, H. Burmeister, Roberto Cirio, L. K. Resvanis, Robert S. Brown, Andrey Korytov, A.S. Vodopianov, Jan Krolikowski, W. Bartl, Massimo Caccia, Matteo Pegoraro, J. A. Valls Ferrer, J. P. Laugier, Vladimir Nikolaenko, Peter M. Allen, M. Pimenta, B. A. Khomenko, N. De Groot, A. Stocchi, Francesco Navarria, P. Juillot, J. Zúñiga, F. Djama, P. Kapusta, Joao Varela, J. J. Gomez Y Cadenas, Borge Svane Nielsen, J. J. Lozano, M. H. Gros, Krzysztof Doroba, Chiara Meroni, Jan Buytaert, D. Benedic, Peter Kluit, A. Maltezos, M. Voutilainen, G. Grosdidier, M. Crozon, Alessandra Romero, I.A. Gritsaenko, A. Ruiz, J. Kesteman, Claudia J. Stubenrauch, R. Sosnowski, F. Naraghi, V. G. Timofeev, P. Kokkinias, S. Uberschar, B. Dalmagne, Laurent Chevalier, Milos Lokajicek, L. Tortora, F. J. Harris, A.K. Topphol, J. E. Hooper, D. Wormald, Maria Elena Pol, S. Katsanevas, R. Moller, T. A. Filippas, M. Regler, Walter Van Doninck, R. Llosa, J. Dolbeau, P. Bambade, P.S.L. Booth, P. N. Ratoff, Charles Bricman, M. P. Clara, L. Cerrito, 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), 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 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), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, and Heyd, Yvette
Subjects: Particle physics, SCALAR BOSON, NUCLEAR DECAY, LIGHT SCALAR, LEP, ENERGIES, LIMITS, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Physics and Astronomy (miscellaneous), Electron–positron annihilation, Technicolor, Elementary particle, 01 natural sciences, Standard Model, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Engineering (miscellaneous), Boson, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Supersymmetry, Higgs boson, Physique des particules élémentaires, High Energy Physics::Experiment, Particle Physics - Experiment, Minimal Supersymmetric Standard Model
Abstract: A search for light Higgs bosons was performed using the data sample collected in 1990 by the DELPHI detector at LEP, at centre of mass energies between 88.2 and 94.2 GeV. Using the process e+e-→H0+Z0*, Z0*→ff, it is possible to exclude the existence of the standard model Higgs particle with a mass between 0 and 210 MeV/c2 at the 99% confidence level. Extending this analysis to the minimal supersymmetric standard model restricts the lightest neutral Higgs boson to masses above 28 GeV/c2 irrespective of the value of the mixing angle., 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 1991

25. Study of J/$\psi$ production in p-U, O-U and S-U interactions at 200 GeV per nucleon

Author: Joao Varela, J.P. Guillaud, O. Drapier, L. Fredj, S. Papillon, B. Chaurand, S. Silva, D. Jouan, S. Ramos, A. Baldit, E. Descroix, R. Ferreira, Francois Vazeille, P. Bordalo, A. Devaux, P. Force, G. Landaud, C. Baglin, Philippe Busson, C. Gerschel, Carlos Lourenco, L. Kluberg, J.-R. Pizzi, B. Grosdidier, Ph. Gorodetzky, R. Cases, Luis Peralta, Didier Contardo, Claude Charlot, M. Pimenta, X. Felgeyrolles, T. Chambon, X. Tarrago, P. Sonderegger, F. Staley, P. Liaud, M. Alimi, J.M. Gago, J.-Y. Grossiord, A. Romana, M. Bedjidian, J. Fargeix, A. Baldisseri, A. Bussiere, C. Racca, R. Kossakowski, R.A. Salmeron, A. Guichard, J. Castor, M.C. Abreu, R. Haroutunian, Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), 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 Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-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), 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), ALICE, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), 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 Claude Bernard Lyon 1 (UCBL), NA38, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-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)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Muon, Plasma formation, 010308 nuclear & particles physics, Continuum (design consultancy), 7. Clean energy, 01 natural sciences, Nuclear physics, Yield (chemistry), [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], 0103 physical sciences, Energy density, Production (computer science), Nuclear Experiment, 010306 general physics, Nucleon
Abstract: In a search for quark-gluon plasma formation, the production of J/ψ and muon pairs in the mass continuum region is studied in oxygen-uranium and sulphur-uranium interactions. The yield of J/ψ relative to the continuum is measured to be a decreasing function of the neutral transverse energy produced in the collision, i.e. of the energy density. A comparison is made with proton-uranium reactions.
Published: 1991

26. A study of the reaction e+e- → μ+μ- around the Z0 pole

Author: M. Jonker, A. B. Fenyuk, B. Koene, Paolo Morettini, Mikael Berggren, M. Los, V. Lepeltier, Paolo Checchia, J. G. Loken, P. Beilliere, Ph. Gavillet, R. Pain, O. Barring, P. Vaz, A. Lounis, S. Biagi, H. P. Borner, P. Negri, A. Pullia, S. O. Holmgren, M. Richardson, J.H. Bibby, L. S. Vertogradov, D. J. Holthuizen, Natale Demaria, G. Borisov, L. O. Eek, R. C. Shellard, Josef Hrubec, M. Baubillier, A. Markou, K. Furnival, Göran Jarlskog, A. M. Segar, H. Furstenau, George Kalkanis, A. M. Zaitsev, Alexander Vodopyanov, P. S. Iversen, P. B. Renton, F. Fontanelli, F. Bianchi, D. C. Fries, Kjell Fransson, A. Letessier-Selvon, E. Lieb, Wolfgang Adam, W. D. Apel, E. C. Katsoufis, V. Ruhlmann, Marta Calvi, E. Menichetti, I. Lippi, Geoffrey Smith, E.N. Tsyganov, J. H. Wickens, W.H. Range, Jose Luis Contreras, L. Bugge, Luca Tortora, P. Herquet, A. Passeri, F. Cao, J. Cuevas Maestro, R. Contri, E. Rosso, H. Klein, U. Nau-Korzen, A. J. Camacho Rozas, D. Z. Toet, M. Turala, D. Fassouliotis, Ariella Cattai, D. Radojicic, G. Galeazzi, A. Ferrer, Manolis Dris, Jan Ridky, P. Roudeau, K. Moenig, E. Lillethun, G. W. Van Apeldoorn, P. Lutz, Pierre Astier, L. Ventura, R. Lucock, Martino Margoni, E. Fokitis, G. D. Alekseev, M. Kopf, R. Lauhakangas, M. Sessa, M. Donszelmann, R. Sosnowski, R. Gokieli, Andre Tilquin, P. Siegrist, J-C. Marin, V.A. Uvarov, Hans Muller, F. Simonetto, Mario Sannino, M. Mc Cubbin, K. Hultqvist, P. N. Bogolubov, A. G. Olshevski, G. Leder, M. J. Bates, D. Husson, Th. D. Papadopoulou, Guenakh Mitselmakher, H. Palka, R. Zitoun, G. Skjevling, E. Cerrelli, J. Dolbeau, José Salt, Christine Kourkoumelis, B. Åsman, D. Bertrand, L. Vibert, Spyros Tzamarias, P. Branchini, D. Crennell, O. Ullaland, Leif J. Jönsson, H. Schneider, E. Dahl-Jensen, F. Mandl, E. K. Johansson, G. Smadja, R. Sekulin, R. Moeller, Jon Christopher Wikne, G. Wormser, Pieter David, C. Defoix, C. Bosio, Dietrich Liko, J. N. Jackson, P. Privitera, F. Fulda-Quenzer, P. Bambade, Toralf Bernhard Skaali, P.S.L. Booth, P. N. Ratoff, D. Gamba, Patrick Jarry, B. W. Heck, D. Vilanova, J. Krolikowski, V. Falaleev, Itzhak Roditi, K. Doroba, G. Voulgaris, U. Trevisan, S. Dagoret, G. Rinaudo, I. A. Tyapkin, P. Folegati, J. W. Lamsa, F. Barao, P. Van Dam, T. S. Spassoff, J. M. Brunet, A. Stocchi, B. Korzen, F. Verbeure, F. Kapusta, K. Rybicki, T. Moa, Charles Bricman, Roberto Cirio, V. Vrba, Wojciech Kucewicz, W. Ruckstuhl, Gueorgui Chelkov, G. Maehlum, L. K. Resvanis, C. Vander Velde, Renato Turchetta, C. De La Vaissiere, B. Franek, W. Krupinski, I. Herbst, Daniel Treille, Pierre Billoir, M. S. Bilenky, L.J. Carroll, T. Hofmokl, Ugo Gasparini, M. Davenport, H. J. Hilke, B. Dalmagne, F. Alted, Francesca Romana Cavallo, Mitchell Wayne, P. Beltran, Maria Roberta Monge, R. Dzhelyadin, P. Kapusta, P. Weilhammer, N. Crosland, M. P. Clara, Pawel Jalocha, Barry King, Laurent Chevalier, V. V. Lapin, N. Redaelli, Jose M. Benlloch, A. Grant, Juan Fuster, A. Zalewska, J. Lindgren, Guido Barbiellini, J. Guy, William Trischuk, Hans Dijkstra, A. Lopez-Fernandez, Tuure Tuuva, Clara Troncon, I. Belokopytov, Massimo Caccia, Tim Adye, E. Higon, R. Frühwirth, S. D. Hodgson, C. De Clercq, J. Timmermans, R. Seufert, W. T. Meyer, B. De Lotto, G. Crosetti, Evgueni Vlasov, M. Dam, Klaus Hamacher, Vladimir Nikolaenko, T. Buran, P. Juillot, S. Maltezos, F. Djama, F. Scuri, A. M. Wetherell, C. Lambropoulos, Ugo Amaldi, W. De Boer, E. Zevgolatakos, L. Lanceri, S. Gumenyuk, Jacques Lemonne, L. Di Ciaccio, K. Woschnagg, R. A. Brenner, Javier Sánchez, G. Gopal, Andrea Perrotta, G. Sette, G. E. Theodosiou, T. Todorov, K. D. Brand, S. J. Alvsvaag, H. Herr, N. I. Zimin, S. Ragazzi, A. Firestone, Olga Botner, G. Hamel de Monchenault, Krzysztof Korcyl, L. G. Tkatchev, E. J. Sanchez, T. Kreuzberger, M. A. Lopez Aguera, R. Mc Nulty, M. Schaeffer, G. Wilkinson, Josef Strauss, Borge Svane Nielsen, W. Van Doninck, W. Venus, J. Velasco, M. Gorski, J. J. Lozano, M. H. Gros, H. De Boeck, B. Jean-Marie, M.D.M. De Fez Laso, B.D. Hyams, E. I. Rosenberg, J. J. Hernandez, M. Tyndel, A. Lipniacka, M. Pernicka, I. Hietanen, M. Vollmer, U. Rossi, P. O. Hulth, M. De Beer, M. L. Turluer, M. Bonesini, Paolo Giacomelli, Y. Sacquin, J. Maillard, Jesus Marco, G. Lenzen, R. Strub, J. E. Campagne, D. Reid, M. Koratzinos, Tiziano Rovelli, S. Delorme, R. Orava, Fernand Grard, L. Mathis, P. Delpierre, E. Daubie, V. Perevozchikov, H. Foeth, M. Zito, Tiziano Camporesi, G. Cosme, J. P. Gerber, Chiara Meroni, Jan Buytaert, E. G. Anassontzis, G. Kantardjian, Jorge-Armando Benitez Garcia, T. P. A. Åkesson, A. Baroncelli, P. Zalewski, B. Grossetete, Marco Bozzo, K. Kurvinen, K. W. Glitza, D. Benedic, Peter Kluit, Allan Hallgren, Giovanni Valenti, H. Forsbach, P. Szymanski, P. Frenkiel, F. Waldner, C. Ronnqvist, G. Tristam, G. Zhang, G. Myatt, A. P. Ostankov, J. P. Engel, C. Walck, Paul Baillon, B. Nijjhar, U. Kruener-Marquis, Alexander Lincoln Read, B. Bouquet, J.M. Gago, Maria Elena Pol, V. Kostukhin, Stefaan Tavernier, Tord Ekelof, H. Staeck, Gianni Zumerle, Paolo Ronchese, N. J. Kjaer, Milos Lokajicek, A. De Angelis, D. Delikaris, Peter M. Allen, M. Pimenta, N. van Eijndhoven, Luc Pape, Joao Varela, C. Stanescu, W. Bonivento, S. Braibant, J. J. Gomez Y Cadenas, J. Werner, B. Loerstad, T. Bolognese, G. Damgaard, S. Katsanevas, Paula Eerola, S. Ueberschaer, M. T. Trainor, H. Burmeister, Daniel Bloch, P. D. Dauncey, Ahmimed Ouraou, V.M. Golovatyuk, B. A. Khomenko, Sandor Czellar, N. De Groot, G. Polok, Francesco Navarria, J. Zúñiga, P. Poropat, Andromachi Tsirou, Robert S. Brown, A. Maltezos, G. E. Kalmus, T. A. Filippas, M. Fernandez Alonso, V. Obraztsov, Andre Augustinus, Matteo Pegoraro, M. Regler, P. Yepes, O. Pingot, M. Szeptycka, J. Drees, Evangelos Gazis, R. Llosa, A. Klovning, V. Gracco, H. Mueller, M. Dracos, U. Mjoernmark, Andrey Korytov, Pavlos Ioannou, N. N. Khovanski, W. Bartl, J. A. Valls Ferrer, J. P. Laugier, F. J. Harris, J. E. Hooper, M. A. Houlden, D. Wormald, G. Matthiae, V. Canale, W. A. Mitaroff, F. Naraghi, V. G. Timofeev, P. Kokkinias, F. Richard, M. Hahn, S. Almehed, M. Voutilainen, G. Grosdidier, F. Hahn, C. Matteuzzi, M. Crozon, Alessandra Romero, A. Ruiz, J. Kesteman, P. F. Honore, A. N. Sissakian, Claudia J. Stubenrauch, G. Vegni, Eleuterio Spiriti, N. Brummer, J. Pyyhtia, J. E. Augustin, D. Johnson, S. Haider, C. Caso, W.S.C. Williams, M. Boratav, H. B. Crawley, F. Ledroit, G. Stavropoulos, V. Chorowicz, M. Mazzucato, A. G. Frodesen, Z. Hajduk, A. Hakansson, W. Dulinski, P. V. Chliapnikov, A. Campion, S. Volponi, R. Zukanovich Funchal, Marc Winter, D.Y. Burdin, H. Wahlen, Ariel Goobar, J. H. Koehne, M.V. Castillo Jimenez, K. H. Becks, E. Vallazza, F. Stichelbaut, R. Mc Kay, M. Bonapart, F. Adami, P. Abreu, P. Borgeaud, Louis Lyons, C. J. Beeston, R. Keranen, Philippe Charpentier, Francisco Matorras, N. Yamdagni, L. Cerrito, D. Isenhower, E. Graziani, A. Pinsent, S. Squarcia, F. Couchot, R. Holmes, H. Saarikko, Demetrios Loukas, J. Bjarne, M. Szczekowski, P. Antilogus, F. Pierre, G. Ekspong, W. Klempt, Giovanni Darbo, S. Simonetti, M. Begalli, Delphi, Collaboration, Abreu, P., Adam, W., and Canale, Vincenzo
Subjects: Coupling constant, Physics, LEPTONIC DECAYS, Nuclear and High Energy Physics, Muon, Electron–positron annihilation, media_common.quotation_subject, Hadron, Weinberg angle, BOSON, Electron, Asymmetry, Resonance (particle physics), Nuclear physics, PARTIAL WIDTHS, RESONANCE PARAMETERS, High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment, media_common
Abstract: Measurements of the cross section and forward-backward asymmetry for the reaction e+e-→μ+μ- using the DELPHI detector at LEP are presented. The data come from a scan around the Z0 peak at seven centre of mass energies, giving a sample of 3858 events in the polar angle region 22° < θ < 158°. From a fit to the cross section for 43° < θ < 137°, a polar angle region for which the absolute efficiency has been determined, the square root of the product of the Z0→e+e- and Z0→μ+μ- partial widths is determined to be (ΓeΓμ)1/2 = 85.0 ± 0.9 (stat.) ± 0.8 (syst.) MeV. From this measurement of the partial width, the value of the effective weak mixing angle is determined to be sin2(θ̄w) = 0.2267 ± 0.0037. The ratio of the hadronic to muon pair partial widths is found to be Γh/Γμ = 19.89 ± 0.40 (stat.) ± 0.19 (syst.). The forward-backward asymmetry at the resonance peak energy ECMS = 91.22 GeV is found to be AFB = 0.028 ± 0.020 (stat.) ± 0.005 (syst.). From a combined fit to the cross section and forward-backward asymmetry data, the products of the electron and muon vector and axial-vector coupling constants are determined to be VeVμ = 0.0024 ± 0.0015 (stat.) ± 0.0004 (syst.) and AeAμ = 0.253 ± 0.003 (stat.) ± 0.003 (syst.). These results are in good agreement with the expectations of the minimal standard model.
Published: 1991

27. Transverse momentum of j/$\psi$ produced in oxygen-uranium collisions at 200 GeV per nucleon

Author: Ph. Gorodetzky, P. Liaud, M. Pimenta, X. Tarrago, P. Bordalo, Luis Peralta, E. Descroix, Carlos Lourenco, L. Fredj, R. Ferreira, L. Kluberg, A. Baldit, D. Jouan, R. Cases, F. Staley, R. Kossakowski, G. Landaud, M. Alimi, S. Papillon, B. Chaurand, Claude Charlot, S. Ramos, J. Fargeix, R.A. Salmeron, J. Varela, T. Chambon, F. Vazeille, A. Bussière, S. Silva, J.-R. Pizzi, O. Drapier, C. Gerschel, J.M. Gago, A. Baldisseri, A. Devaux, J. P. Guillaud, Didier Contardo, A. Guichard, X. Felgeyrolles, P. Force, C. Racca, J. Castor, Philippe Busson, M. Bedjidian, A. Romana, B. Grosdidier, J.-Y. Grossiord, C. Baglin, P. Sonderegger, M.C. Abreu, R. Haroutunian, Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), 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 Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-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), 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), ALICE, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), 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 Claude Bernard Lyon 1 (UCBL), NA38, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-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)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, Nuclear and High Energy Physics, Muon, 010308 nuclear & particles physics, chemistry.chemical_element, Uranium, 7. Clean energy, 01 natural sciences, Oxygen, Nuclear physics, Transverse plane, chemistry, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], 0103 physical sciences, Transverse momentum, Nuclear Experiment, 010306 general physics, Nucleon
Abstract: The study of the J ψ transverse momentum distribution in oxygen-uranium reactions at 200 GeV/nucleon shows that 〈PT〉 and 〈PT2〉 increase with the transverse energy of the reaction. Muon pairs in the mass continuum do not exhibit the same behaviour. The comparison of the J ψ production rates in central and peripheral collisions shows a significant diminution for low PT central events.
Published: 1990

28. Search For Light Neutral Higgs Particles Produced In Z0-decays

Author: W. Kucewicz, E. Lieb, V. Ruhlmann, Ariella Cattai, B. Korzen, R.B. Kadyrov, M. Voutilainen, G. Grosdidier, Leif J. Jönsson, L. Bugge, A. J. Camacho Rozas, M. Crozon, Alessandra Romero, A. Ruiz, G. W. Van Apeldoorn, U. Trevisan, D. Z. Toet, W.S.C. Williams, G. E. Theodosiou, Claudia J. Stubenrauch, V. G. Kadyshevski, J. Dolbeau, P. Bambade, L. Ventura, A. Klovning, B. Dalmagne, Laurent Chevalier, B. Franek, V. Pozdniakov, F. Ledroit, G. Stavropoulos, V. Chorowicz, U. Mjoernmark, C. Bosio, P.S.L. Booth, P. N. Ratoff, P. Yepes, A. Sebastia, M.D.M. De Fez Laso, Milos Lokajicek, Charles Bricman, J. Kesteman, T. Buran, Paolo Pasini, Hans Muller, L. Tortora, B. Koene, A.K. Topphol, J. E. Hooper, D. Wormald, R. Sosnowski, F. Naraghi, V. G. Timofeev, E. Lillestol, P. Kluit, R. Lucock, A.N. Diddens, P. N. Bogolubov, K. Woschnagg, G. Gopal, F. Simonetto, Stefano Ragazzi, E. Dahl-Jensen, M. Jonker, L. Cerrito, W. Adam, A. Tilquin, M. Fernandez Alonso, R. Cirio, V. Obraztsov, A. B. Fenyuk, E. J. Sanchez, Tiziano Rovelli, M. Cresti, G. Leder, Olga Botner, Jan Krolikowski, H. Fuerstenau, Patrick Jarry, Paolo Morettini, M. Mazzucato, J. G. Loken, B. Åsman, A. Markou, M. J. Bates, S. Gawne, G. Kantardjian, W. A. Mitaroff, C. Pinori, H. Palka, Krzysztof Korcyl, J. P. Laugier, G. Rinaudo, P. Beilliere, G. Skjevling, George Kalkanis, E. K. Johansson, P. B. Renton, Paul Baillon, Alexander Lincoln Read, M. Szeptycka, F. Cao, P. Abreu, P. Borgeaud, D. C. Fries, A. Campion, F. Richard, C. Matteuzzi, M. Hahn, S. Almehed, P. Szymanski, Yu. N. Sedykh, T. Bolognese, Toralf Bernhard Skaali, G. Voulgaris, F. Verbeure, F. Kapusta, J. W. Lamsa, Mario Sannino, M. A. Lopez Aguera, D. Crennell, R. Orava, Fernand Grard, F. Mandl, P. Beltran, H. Forsbach, G. Smadja, Itzhak Roditi, G. Zhang, Gueorgui Chelkov, Daniel Treille, H. Foeth, E. Vela, P. Siegrist, F. Barao, J. Skeens, E. C. Katsoufis, D. Husson, V. Lepeltier, Paolo Checchia, Ph. Gavillet, J-C. Marin, C. Castelli, W. Bartl, G. Galeazzi, A. Ferrer, G. Ekspong, P. Privitera, Marta Calvi, I. Herbst, Geoffrey Smith, M. Pimenta, K. W. Glitza, R. Fruhwirth, Sandor Czellar, G. Polok, B. W. Heck, J. P. Engel, M. V. Castillo Gimenez, A. Passeri, I. A. Tyapkin, K. Moenig, B. Bouquet, Spyros Tzamarias, V. Falaleev, J. Lindgren, Juan Fuster, Craig Buttar, A. De Angelis, D. Delikaris, P. Herquet, R. Contri, J. Varela, Piotr Zalewski, U. Nau-Korzen, Tuure Tuuva, N. Crosland, Klaus Hamacher, S. Braibant, Clara Troncon, S. Gumenyuk, R. A. Brenner, E. Higon, R. Seufert, G. Damgaard, P. Vaz, R. Zukanovich Funchal, Marc Winter, Luc Pape, Z. Hajduk, M. Baubillier, A. Pullia, R. Pain, O. Barring, B. Poliakov, Giovanni Darbo, S. Simonetti, F. Scuri, B.D. Hyams, D. Sacco, S. J. Alvsvaag, D. Bollini, G. Wormser, E. Zevgolatakos, G. Matthiae, O. Pingot, N. van Eijndhoven, J. Werner, Maria Elena Pol, E. Fokitis, G. D. Alekseev, H. Wahlen, A. M. Zaitsev, Maciej Górski, M. Turala, E. I. Rosenberg, C. Vander Velde, N. Demaria, K. Denisenko, C. J. Beeston, D. Gamba, V. Canale, A. M. Lopez, S. Biagi, H. P. Borner, V.A. Uvarov, K. Pakonski, M. Davenport, A. Hakansson, W. Klempt, Manolis Dris, A. M. Wetherell, A. A. Rademakers, F. Alted, V. Gracco, Ariel Goobar, J. H. Koehne, A. Baroncelli, L. Lanceri, M. S. Bilenky, R. Sekulin, Kjell Fransson, S. Katsanevas, H. J. Hilke, S. O. Holmgren, T. Hofmokl, Marek Szczekowski, Daniel Bloch, K. Kurvinen, P. Roudeau, Mogens Dam, C. Lambropoulos, Ugo Amaldi, W. De Boer, Ahmimed Ouraou, V.M. Golovatyuk, L.J. Carroll, E. Rosso, H. Klein, W. Dulinski, G. Hamel de Monchenault, P. V. Chliapnikov, A. Pinsent, L. Di Ciaccio, M. Bonapart, J. Drees, S. Dagoret, S. Haider, M. Mc Cubbin, M. A. Houlden, F. Bianchi, P. Van Dam, K. Hultqvist, P. Kokkinias, E. Lillethun, T. A. Filippas, Tord Ekelof, M. Regler, J. N. Jackson, T. Moa, K. H. Becks, G. Maehlum, V. Lapchine, L. O. Eek, R. C. Shellard, Josef Hrubec, J. E. Augustin, U. Kruener-Marquis, Evangelos Gazis, A. M. Segar, G. Vegni, H. Staeck, T. Kreuzberger, P. Weilhammer, W. Van Doninck, Louis Lyons, S. Squarcia, R. Holmes, M. Pernicka, H. Saarikko, N. Brummer, I. Belokopytov, E. Vallazza, P. S. Iversen, E. Menichetti, Paolo Ronchese, E. Anassontzis, W. Kurpinski, S. Ferroni, F. Udo, F. Fontanelli, W. H. Range, J. Pyyhtia, M. Dracos, Jesus Marco, C. Kourkoumelis, B. Loerstad, C. Astor Ferreres, J. Cuevas Maestro, R. Strub, J. E. Campagne, Maria Roberta Monge, C. Caso, Renato Turchetta, I. Lippi, C. De La Vaissiere, F. Stichelbaut, A. Zalewska, W. T. Meyer, Josef Strauss, M. Koratzinos, E.N. Tsyganov, J. H. Wickens, D. Vilanova, Th. D. Papadopoulou, M. De Beer, Guenakh Mitselmakher, Jose Luis Contreras, H. Burmeister, Demetrios Loukas, T. Todorov, Pierre Billoir, M. Boratav, R. Mc Kay, M. I. Laakson, Y. Sacquin, B. De Lotto, G. Crosetti, Evgueni Vlasov, H. B. Crawley, M. Schaeffer, G. Tristram, A. S. Vodopianov, F. Adami, Paula Eerola, D.N. Edwards, R. Dzhelyadin, Robert S. Brown, D. Radojicic, W. Venus, Ugo Gasparini, R. Llosa, H. Mueller, H. Herr, Jose M. Benlloch, A. Grant, R. Keranen, G. E. Kalmus, D. Reid, L. G. Tkatchev, P. Negri, Philippe Charpentier, N. Yamdagni, P. David, Jan Ridky, J. Velasco, Hans Dijkstra, K. Spang, J.H. Bibby, M. Berggren, L. Vibert, Cristian Stanescu, P. Branchini, A. Firestone, P. Lutz, Matteo Pegoraro, Göran Jarlskog, Guido Barbiellini, J. Guy, H. Schneider, M. Kopf, M. E. Veitch, F. Couchot, A. Letessier-Selvon, R. Lauhakangas, Gianni Zumerle, Pawel Jalocha, Barry King, E. Spiriti, Nikolai Smirnov, W. D. Apel, Tim Adye, J. Bjarne, M. Sessa, C. Defoix, M. Vollmer, U. Rossi, Paolo Giacomelli, P. Poropat, G. Lensen, F. Hahn, M. P. Clara, D.Yu. Bardin, J. Timmermans, Andre Augustinus, R. Gokieli, D. Bertrand, B. Grossetete, Allan Hallgren, J.V. Allaby, J.A. Valls, Giovanni Valenti, R. Zitoun, Jon Christopher Wikne, V. Vrba, E. Sanchis, F. Fulda-Quenzer, B. Lund-Jensen, E. Graziani, J. M. Brunet, Peter M. Allen, B. A. Khomenko, N. De Groot, A. Stocchi, Francesco Navarria, J. Zúñiga, Borge Svane Nielsen, J. J. Lozano, M. H. Gros, Krzysztof Doroba, Chiara Meroni, Jan Buytaert, D. Benedic, G. Sette, H. De Boeck, B. Jean-Marie, M. Tyndel, V. Perevozchikov, Tiziano Camporesi, G. Cosme, M. Nigro, N. G. Redaelli, Marco Bozzo, P. Frenkiel, P. Ioannou, F. Waldner, K. D. Brand, N.I. Zimin, C. Walck, Janet Harris, Stefaan Tavernier, Francesca Romana Cavallo, Mitchell Wayne, V. V. Lapin, C. De Clercq, R. Moeller, L. K. Resvanis, Massimo Caccia, Vladimir Nikolaenko, P. Juillot, F. Djama, J. J. Hernandez, P. O. Hulth, P. Delpierre, E. Daubie, P. Laurikainen, G. Myatt, J.M. Gago, S. Ueberschaer, A. Maltezos, J. Lemonne, M. L. Turluer, Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), DELPHI, 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), Delphi, Collaboration, Abreu, P., Adam, W., and Canale, Vincenzo
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, Luminosity (scattering theory), 010308 nuclear & particles physics, Electron–positron annihilation, High Energy Physics::Phenomenology, Elementary particle, Fermion, 01 natural sciences, 7. Clean energy, Standard Model, Nuclear physics, 0103 physical sciences, Large Electron–Positron Collider, Physique des particules élémentaires, Higgs boson, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Física nuclear, High Energy Physics::Experiment, 010306 general physics, Particle Physics - Experiment
Abstract: A search for the neutral Higgs boson in Z0-decays has been performed using the DELPHI detector at the Large Electron Positron collider (LEP) at CERN. We looked for the decay of Z0 into a neutral Higgs particle and a pair of fermions. No events fulfilled the criteria for H0-production. Our results, which are based on an integrated luminosity of 530 nb-1, exclude a minimal Standard Model Higgs boson with a mass in the range 210 MeV/c2 to 14 GeV/c2 at 95% confidence level., 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 1990

29. Study of Hadronic decays of the Z$^0$ Boson

Author: M. Nordberg, R. Lauhakangas, M. Gorbics, G. Crosetti, Evgueni Vlasov, Gueorgui Chelkov, M. Sessa, E. Lieb, L. Mathis, B. Grung, Ugo Gasparini, N. Crosland, H. Herr, W. A. Mitaroff, Ariella Cattai, D.Yu. Bardin, N. Dimitriou, N. Yamdagni, A. Sadovsky, J. Drees, Paul Baillon, R. Gokieli, M. Bonapart, Klaus Hamacher, Louis Lyons, Guido Barbiellini, J. Guy, E. Graziani, P. Laurikainen, G. Ekspong, Alexander Lincoln Read, M. Szeptycka, F. Richard, Demetrios Loukas, C. Matteuzzi, O. Ullaland, M. E. Veitch, Giovanni Darbo, F. Couchot, A. Markou, S. Simonetti, George Kalkanis, P. B. Renton, J. Bjarne, Tim Adye, S. Gumenyuk, S. J. Alvsvaag, M. Hahn, Phillip Allport, U. Trevisan, S. Almehed, Th. D. Papadopoulou, M. Ellila, J. Dolbeau, D. C. Fries, Guenakh Mitselmakher, P. Antilogus, Evangelos Gazis, W.S.C. Williams, P. Folegati, P.S.L. Booth, P. N. Ratoff, P. Negri, V. Ruhlmann, J. Joensuu, J. Skeens, B. Franek, C. Pinori, Tiziano Rovelli, M. Cresti, E. C. Katsoufis, Marta Calvi, G. Stavropoulos, V. Chorowicz, G. Rinaudo, E. Menichetti, S. Gawne, José Salt, F. Hahn, Stefano Ragazzi, Roland Horisberger, M. Mur, L. Bugge, J.H. Bibby, A. J. Camacho Rozas, D. Z. Toet, Charles Bricman, L. Tkachev, P. Abreu, P. Borgeaud, G. Kantardjian, P. Branchini, C. Gaspar, M. Gaillard, Geoffrey Smith, F. Simonetto, H. Schneider, M. Dracos, M. Fernandez Alonso, J.M. Noppe, T. Buran, J.B.M. Pattison, C. Poiret, M. Jonker, Göran Jarlskog, S. Nounos, A. Letessier-Selvon, Mogens Dam, J. P. Engel, V. Obraztsov, H. Forsbach, G. Polok, O.A. Maeland, J. J. Gómez Cadenas, A. B. Fenyuk, G. Zhang, G. Damgaard, A. Tilquin, S. Du, G. Leder, M. P. Clara, G. W. Van Apeldoorn, E. Sundell, W. D. Apel, Luca Tortora, I. Roncagliolo, R. Lucock, O. Pingot, Luc Pape, F. Stichelbaut, R. Mc Kay, H. Hofmann, V. Lepeltier, E. Castelli, L. Ventura, G. Galeazzi, A. Ferrer, E. K. Johansson, C. Bosio, B. Åsman, D. Crennell, F. Mandl, P. Beltran, Paolo Checchia, G. Smadja, E. Lillestöl, D. Husson, G. Hamel de Monchenault, Josef Strauss, P. Herquet, P. Adrianos, C. J. Beeston, A. Pinsent, Håkan T Johansson, E. Zevgolatakos, R. Contri, Francesca Romana Cavallo, Mitchell Wayne, B. Lavigne, M. Turala, G. Vegni, Olga Botner, Krzysztof Korcyl, Ph. Gavillet, S. Squarcia, V. Gracco, Maria Elena Pol, S. Katsanevas, W. Venus, M. Regler, Cesare Chiccoli, M. Mazzucato, P. Szymanski, A. G. Frodesen, J. P. Gerber, A. Sebastia, S. Palma Lopes, S. Quinton, G. Wormser, W. Kucewicz, N. Bingefors, Panos Kostarakis, M.-H. Gros, Manolis Dris, P. Roudeau, H. Foeth, B. Koene, S. Braibant, V. V. Lapin, E. Vela, J. Velasco, H. Saarikko, Tord Ekelof, H. Staeck, F. Adami, M. Barranco-Luque, Hans Muller, R. Sekulin, K. W. Glitza, B. Korzen, T. Moa, G. Maehlum, Z. Hajduk, S. Barlag, Maciej Górski, P. N. Bogolubov, R. Keranen, Philippe Charpentier, K. Spang, L. Cerrito, K. Rybicki, R.B. Kadyrov, P. Privitera, E. Sanchis, E. Lillethun, J. Barlow, G. Borisov, B. Goret, M. Baubillier, G. B. Chadwick, C. De Clercq, J. Pagot, Yu. Sedykh, M. A. Houlden, M. Pernicka, Piotr Zalewski, U. Kruener-Marquis, Paolo Ronchese, K. Moenig, E. Fokitis, G. D. Alekseev, R. Llosa, B. Van Eijk, A.N. Diddens, P. Siegrist, Jesus Marco, H. Mueller, F. Rossel, M. Davenport, A. Campion, A. Hakansson, E. Dahl-Jensen, Tuure Tuuva, B. Loerstad, R. Strub, J. E. Campagne, I. A. Tyapkin, Jerzy Michalowski, C. Stanescu, R. Downs, Craig Buttar, M. Koratzinos, A. De Angelis, G. Petrucci, J. E. Augustin, D. Langerveld, B. W. Heck, C. Vander Velde, Paolo Morettini, D. Delikaris, A. M. Zaitsev, N. van Eijndhoven, S. Cairanti, J. Werner, H. J. Hilke, L. Viseu Melo, H. Burmeister, D. Sacco, V. Vrba, J. G. Loken, Didier Imbault, C. Lambropoulos, Ugo Amaldi, V. Castillo Gimenez, P. V. Chliapnikov, R. Zukanovich Funchal, Marc Winter, J. M. Yelton, W. Bell, M. Mc Cubbin, K. Hultqvist, P. Kokkinias, Daniel Bloch, A. S. Vodopianov, L. Mattsson, Mario Sannino, Andrea Perrotta, J. Krstic, M. A. Lopez Aguera, Ahmimed Ouraou, V.M. Golovatyuk, V.A. Uvarov, Robert S. Brown, J. Mas, A. Hrisoho, N. I. Zimin, K. Pakonski, G. Sette, F. Bianchi, L.S. Curwen, C. Troncon, H. Wahlen, Ariel Goobar, R. Orava, Fernand Grard, P. Vaz, N. Brummer, M. Tyndel, Wolfgang Adam, J.F. Genat, T. Kreuzberger, J.C. Raoul, G. Goujon, W. Van Doninck, J-C. Marin, P. Queru, L. Guglielmi, Maria Roberta Monge, A. Zalewska, S. Topp-Jorgensen, J.-P. Vanuxem, J.C. Le Grand, Kjell Fransson, M. Innocente, R. Pain, O. Barring, W. H. Range, B. Bouquet, W. T. Meyer, Jacques Lemonne, S. Maltezos, D. Fraissard, K. H. Becks, C. Kourkoumelis, J. Pyyhtia, R. Rongved, D. Bollini, J. Haissinski, H. Lebbolo, M. Kopf, A. Passeri, Patrick Jarry, V. Falaleev, A. Romero, Daniel Treille, T. Odegaard, P. Van Dam, M. Schaeffer, P. Billoir, F. Astesan, J. N. Jackson, C.W. Salgado, S. Biagi, H. P. Borner, P. Weilhammer, A.M. Romaya, S. Haider, J.V. Allaby, D. Vilanova, C. Caso, Renato Turchetta, R. Zitoun, M. Passeneau, F. Fulda-Quenzer, C. De La Vaissiere, P. Spentzouris, S. Ferroni, B. Jean-Marie, B.D. Hyams, B. Kisielewski, P. Aarnio, J. M. Brunet, E. I. Rosenberg, Pawel Jalocha, Barry King, K. Kurvinen, C. Brand, R. Frühwirth, R. Ragazzon, J. Timmermans, M. De Beer, M. Pegoraro, J. Maillard, R. Dzhelyadin, Chiara Meroni, G. Tristram, Paula Eerola, T. Pettersen, Jose M. Benlloch, A. Grant, D.N. Edwards, M. Boratav, M.I. Laakso, Hans Dijkstra, J. Perez, Y. Sacquin, V. Perevozchikov, Tiziano Camporesi, G. E. Kalmus, T. Bolognese, J. Cuevas Maestro, H. B. Crawley, A. Baroncelli, N. G. Redaelli, Marco Bozzo, A. Firestone, P. Frenkiel, P. Ioannou, F. Waldner, K. D. Brand, C. Walck, Stefaan Tavernier, M. Vollmer, D. Bertrand, I. Kontaxis, M. S. Bilenky, L.J. Carroll, G. Lenzen, A. A. Rademakers, R. Moeller, S. O. Holmgren, L. S. Vertogradov, T.K. Truong, B. Grossetete, Allan Hallgren, Giovanni Valenti, M. Flinn, V. Lapchine, L. O. Eek, R. C. Shellard, Josef Hrubec, A. M. Segar, G. Kuhn, P. S. Iversen, F. Fontanelli, C. Astor Ferreres, P. Lorenz, M.V. Reis, G.P. Barreira, B. Lund-Jensen, Roberto Cirio, H. Palka, G. Skjevling, M. L. Turluer, D. Reid, F. Barao, I. Belokopytov, L. K. Resvanis, M. Zito, E. Anassontzis, Katri Huitu, E. Higon, R. Seufert, F. Scuri, Gianni Zumerle, A. M. Wetherell, L. Lanceri, L. Di Ciaccio, P. Poropat, I. Lippi, Andre Augustinus, Massimo Caccia, E.N. Tsyganov, J. H. Wickens, W. Dulinski, B. Muryn, Jose Luis Contreras, Vladimir Nikolaenko, P. Juillot, F. Djama, J.A. Lidbury, M. Berggren, A. Klovning, D. Radojicic, J.P. Grillet, Joao Varela, U. Mjoernmark, P. R. S. Gomes, S. Ueberschaer, F. Udo, P. Lutz, A. Maltezos, Paolo Pasini, J. J. Hernandez, P. O. Hulth, P. Delpierre, E. Daubie, G. Myatt, J.M. Gago, Jan Krolikowski, N. N. Khovanski, W. Bartl, M. Nigro, B. Dalmagne, Laurent Chevalier, K. Woschnagg, G. Gopal, Milos Lokajicek, J. Kesteman, F. J. Harris, A.K. Topphol, J. E. Hooper, E. J. Sanchez, G. Matthiae, V. Canale, M. J. Bates, R. Sosnowski, V. G. Timofeev, Toralf Bernhard Skaali, T. Spassov, D. Gamba, G. Voulgaris, Sverker Johansson, I. Herbst, T.A. Fillipas, M. Voutilainen, G. Grosdidier, A. Samarin, M. Crozon, Juan Fuster, A. Ruiz, A. Pullia, A. N. Sissakian, Eleuterio Spiriti, W. Klempt, H. G. Fischer, T. Hofmokl, Marek Szczekowski, E. Tcherniaev, E. Rosso, H. Klein, J. P. Laugier, Peter M. Allen, M. Pimenta, B. A. Khomenko, N. De Groot, A. Stocchi, Francesco Navarria, M. Nonni, Borge Svane Nielsen, M. H. Gros, G. Cabras, Krzysztof Doroba, Jan Buytaert, D. Benedic, G. E. Theodosiou, 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), DELPHI, Abreu, P., Adam, W., Canale, Vincenzo, 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), Aarnio, P, Abreu, P, Adam, W, Adami, F, Adrianos, P, Adye, T, Alekseev, G, Allaby, J, Allen, P, Allport, P, Almehed, S, Alvsvaag, S, Amaldi, U, Anassontzis, E, Antilogus, P, Apel, W, Asman, B, Astesan, F, Astor Ferreres, C, Augustin, J, Augustinus, A, Baillon, P, Barao, F, Barbiellini, G, Bardin, D, Barlag, S, Barlow, J, Baroncelli, A, Barranco-Luque, M, Barreira, G, Barring, O, Bartl, W, Bates, M, Baubillier, M, Becks, K, Beeston, C, Bell, W, Belokopytov, I, Beltran, P, Benedic, D, Benlloch, J, Berggren, M, Bertrand, D, Biagi, S, Bianchi, F, Bibby, J, Bilenky, M, Billoir, P, Bingefors, N, Bjarne, J, Bloch, D, Bogolubov, P, Bollini, D, Bolognese, T, Bonapart, M, Booth, P, Boratav, M, Borgeaud, P, Borisov, G, Borner, H, Bosio, C, Botner, O, Bouquet, B, Bozzo, M, Braibant, S, Branchini, P, Brand, C, Brand, K, Bricman, C, Brown, R, Brummer, N, Brunet, J, Bugge, L, Buran, T, Burmeister, H, Buttar, C, Buytaert, J, Cabras, G, Caccia, M, Cairanti, S, Calvi, M, Camacho Rozas, A, Campagne, J, Campion, A, Camporesi, T, Canale, V, Carroll, L, Caso, C, Castelli, E, Castillo Gimenez, V, Cattai, A, Cavallo, F, Cerrito, L, Chadwick, G, Charpentier, P, Checchia, P, Chelkov, G, Chevalier, L, Chiccoli, C, Chliapnikov, P, Chorowicz, V, Cirio, R, Clara, M, Contreras, J, Contri, R, Couchot, F, Crawley, H, Crennell, D, Cresti, M, Crosetti, G, Crosland, N, Crozon, M, Cuevas Maestro, J, Curwen, L, Dahl-Jensen, E, D'Almagne, B, Dam, M, Damgaard, G, Darbo, G, Daubie, E, Davenport, M, De Angelis, A, De Beer, M, De Clercq, C, De Groot, N, De La Vaissiere, C, Delikaris, D, Delpierre, P, Di Ciaccio, L, Diddens, A, Dijkstra, H, Dimitriou, N, Djama, F, Dolbeau, J, Doroba, K, Downs, R, Dracos, M, Drees, J, Dris, M, Du, S, Dulinski, W, Dzhelyadin, R, Edwards, D, Eek, L, Eerola, P, Ekelof, T, Ekspong, G, Ellila, M, Engel, J, Falaleev, V, Fenyuk, A, Fernandez Alonso, M, Ferrer, A, Ferroni, S, Fillipas, T, Firestone, A, Fischer, H, Flinn, M, Foeth, H, Fokitis, E, Folegati, P, Fontanelli, F, Forsbach, H, Fraissard, D, Franek, B, Fransson, K, Frenkiel, P, Fries, D, Frodesen, A, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Gago, J, Gaillard, M, Galeazzi, G, Gamba, D, Gaspar, C, Gasparini, U, Gavillet, P, Gawne, S, Gazis, E, Genat, J, Gerber, J, Glitza, K, Gokieli, R, Golovatyuk, V, Gomes, P, Gomez Y Cadenas, J, Goobar, A, Gopal, G, Gorbics, M, Goret, B, Gorski, M, Goujon, G, Gracco, V, Grant, A, Grard, F, Graziani, E, Grillet, J, Gros, M, Grosdidier, G, Grossetete, B, Grung, B, Guglielmi, L, Gumenyuk, S, Guy, J, Hahn, F, Hahn, M, Haider, S, Haissinski, J, Hajduk, Z, Hakansson, A, Hallgren, A, Hamacher, K, Hamel De Monchenault, G, Harris, F, Heck, B, Herbst, I, Hernandez, J, Herquet, P, Herr, H, Higon, E, Hilke, H, Hofmann, H, Hofmokl, T, Holmgren, S, Hooper, J, Horisberger, R, Houlden, M, Hrisoho, A, Hrubec, J, Huitu, K, Hulth, P, Hultqvist, K, Husson, D, Hyams, B, Imbault, D, Innocente, M, Ioannou, P, Iversen, P, Jackson, J, Jalocha, P, Jarlskog, G, Jarry, P, Jean-Marie, B, Joensuu, J, Johansson, E, Johansson, H, Johansson, S, Jonker, M, Juillot, P, Kadyrov, R, Kalkanis, G, Kalmus, G, Kantardjian, G, Katsanevas, S, Katsoufis, E, Keranen, R, Kesteman, J, Khomenko, B, Khovanski, N, King, B, Kisielewski, B, Klein, H, Klempt, W, Klovning, A, Koene, B, Kokkinias, P, Kontaxis, I, Kopf, M, Koratzinos, M, Korcyl, K, Korzen, B, Kostarakis, P, Kourkoumelis, C, Kreuzberger, T, Krolikowski, J, Krstic, J, Kruener-Marquis, U, Kucewicz, W, Kuhn, G, Kurvinen, K, Laakso, M, Lambropoulos, C, Lanceri, L, Langerveld, D, Lapchine, V, Lapin, V, Laugier, J, Lauhakangas, R, Laurikainen, P, Lavigne, B, Le Grand, J, Lebbolo, H, Leder, G, Lemonne, J, Lenzen, G, Lepeltier, V, Letessier-Selvon, A, Lidbury, J, Lieb, E, Lillestol, E, Lillethun, E, Lippi, I, 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P, Privitera, P, Pullia, A, Pyyhtia, J, Queru, P, Quinton, S, Rademakers, A, Radojicic, D, Ragazzi, S, Ragazzon, R, Range, W, Raoul, J, Ratoff, P, Read, A, Redaelli, N, Regler, M, Reid, D, Reis, M, Renton, P, Resvanis, L, Richard, F, Rinaudo, G, Romaya, A, Romero, A, Roncagliolo, I, Ronchese, P, Rongved, R, Rosenberg, E, Rossel, F, Rosso, E, Roudeau, P, Rovelli, T, Ruhlmann, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacco, D, Sacquin, Y, Sadovsky, A, Salgado, C, Salt, J, Samarin, A, Sanchez, E, Sanchis, E, Sannino, M, Schaeffer, M, Schneider, H, Scuri, F, Sebastia, A, Sedykh, Y, Segar, A, Sekulin, R, Sessa, M, Sette, G, Seufert, R, Shellard, R, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A, Skaali, T, Skeens, J, Skjevling, G, Smadja, G, Smith, G, Sosnowski, R, Spang, K, Spassov, T, Spentzouris, P, Spiriti, E, Squarcia, S, Staeck, H, Stanescu, C, Stavropoulos, G, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Sundell, E, Szczekowski, M, Szeptycka, M, Szymanski, P, Tavernier, S, Tcherniaev, E, Theodosiou, G, Tilquin, A, Timmermans, J, Timofeev, V, Tkachev, L, Toet, D, Topp-Jorgensen, S, Topphol, A, Tortora, L, Treille, D, Trevisan, U, Tristram, G, Troncon, C, Truong, T, Tsyganov, E, Turala, M, Turchetta, R, Turluer, M, Tuuva, T, Tyapkin, I, Tyndel, M, Udo, F, Ueberschaer, S, Ullaland, O, Uvarov, V, Valenti, G, Van Apeldoorn, G, Van Dam, P, Van Doninck, W, Van Eijk, B, Van Eijndhoven, N, Vander Velde, C, Vanuxem, J, Varela, J, Vaz, P, Vegni, G, Veitch, M, Vela, E, Velasco, J, Ventura, L, Venus, W, Vertogradov, L, Vilanova, D, Viseu Melo, L, Vlasov, E, Vodopianov, A, Vollmer, M, Voulgaris, G, Voutilainen, M, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Wayne, M, Weilhammer, P, Werner, J, Wetherell, A, Wickens, J, Williams, W, Winter, M, Wormser, G, Woschnagg, K, Yamdagni, N, Yelton, J, Zaitsev, A, Zalewska, A, Zalewski, P, Zevgolatakos, E, Zhang, G, Zimin, N, Zito, M, Zitoun, R, Zukanovich Funchal, R, and Zumerle, G
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, 01 natural sciences, Lower energy, Sphericity, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Minor (value), Multiplicity (chemistry), 010306 general physics, Particle Physics - Experiment, Boson
Abstract: Hadronic decays of Z 0 bosons are studied in the Delphi detector. Global event variables and singel particles inclusive distributions are compared with QCD-based predictions. The mean charged multiplicity is found to be 20.6±1.0 (stat+syst). The mean values of the sphericity, aplanarity, thrust, minor value, p in T and p out T are compared with values found at lower energy e + e − colliders.
Published: 1990

30. A Search for Sleptons and Gauginos in Z0 Decays

Author: P. Abreu, P. Borgeaud, M. J. Bates, B. De Lotto, G. Crosetti, Evgueni Vlasov, M. Turala, G. E. Theodosiou, C. J. Beeston, P. Van Dam, H. Herr, Toralf Bernhard Skaali, O. Pingot, M.D.M. De Fez Laso, H. Palka, L. G. Tkatchev, M. Boratav, D. Gamba, Itzhak Roditi, G. Voulgaris, E. Sanchis, A. Letessier-Selvon, Gueorgui Chelkov, Renato Turchetta, Tord Ekelof, H. Staeck, A. Pinsent, S. Squarcia, R. Holmes, H. Saarikko, S. Tavernier, F. Simonetto, R. Gokieli, F. Kapusta, R. Sekulin, N. Crosland, L. Mathis, I. Herbst, B. Loerstad, G. Leder, Klaus Hamacher, Barry King, J. J. Hernandez, B. Åsman, T. Moa, J. Drees, N. Yamdagni, G. Maehlum, Fernand Grard, S. Gumenyuk, R. A. Brenner, Paul Baillon, Alexander Lincoln Read, M. Szeptycka, R. Frühwirth, J. Timmermans, D. Crennell, F. Mandl, H. Burmeister, G. Smadja, Juan Fuster, E. Lieb, S. J. Alvsvaag, G. Wormser, Ariella Cattai, Jacques Lemonne, Edoardo Castelli, P. Laurikainen, P. Siegrist, J-C. Marin, Leif J. Jönsson, G. Polok, Evangelos Gazis, P. Allen, U. Trevisan, Robert S. Brown, B. W. Heck, B. Franek, A. Pullia, J. P. Engel, P. Bambade, M. V. Castillo Gimenez, V. Falaleev, W. Kucewicz, G. Matthiae, G. Ekspong, Spyros Tzamarias, F. Couchot, V. Chorowicz, Giovanni Darbo, G. Damgaard, E. K. Johansson, Mogens Dam, H. Furstenau, Tiziano Rovelli, M. Cresti, S. Gawne, G. Kantardjian, A. Zalewska, W. Klempt, C. Bosio, H. J. Hilke, B. Korzen, S. Simonetti, M. S. Bilenky, R. Sosnowski, K. W. Glitza, L.J. Carroll, Antonio Ferrer, B. Koene, J.A.M.A. Buytaert, W.S.C. Williams, V. Gracco, J.-E. Augustin, Th. D. Papadopoulou, R.B. Kadyrov, H. Forsbach, G. Zhang, A. P. Ostankov, G. Hamel de Monchenault, T. Hofmokl, A.N. Diddens, Guenakh Mitselmakher, G. Lenzen, A. A. Rademakers, M. Bonapart, P. Weilhammer, Lucio Cerrito, F. Ledroit, G. Stavropoulos, I. Belokopytov, E. Lillestol, E. Anassontzis, Josef Strauss, R. Llosa, W. Venus, Maria Elena Pol, Winfried Mitaroff, S. Haider, F. Naraghi, Paolo Morettini, J. G. Loken, P. Beilliere, Louis Lyons, Sandor Czellar, P. Vaz, M. Dracos, Patrick Jarry, G. Rinaudo, M. A. Houlden, F. Stichelbaut, Marek Szczekowski, T. Buran, S. Katsanevas, D. Y. Bardin, V. Vrba, Luc Pape, M.-H. Gros, D. Bollini, A. Sebastia, T.A. Filippas, S. O. Holmgren, D. Benedic, I. Lippi, G. Grosdidier, E. Rosso, H. Klein, L. Vibert, K. Korcyl, E.N. Tsyganov, J. H. Wickens, R. Mc Kay, Jose Luis Contreras, Cristian Stanescu, P. Branchini, S. Dagoret, F. Djama, V. Ruhlmann, B. Jean-Marie, O. Barring, H. Schneider, M. Mc Cubbin, M. Crozon, L. S. Vertogradov, Wolfgang Adam, P. Jalocha, Demetrios Loukas, M. Mazzucato, K. Hultqvist, Alessandra Romero, C. Caso, P. Szymanski, M. Nigro, D. Radojicic, M. De Beer, Maria Roberta Monge, S. Biagi, H. P. Borner, M. Regler, L. O. Eek, R. C. Shellard, L. Di Ciaccio, Josef Hrubec, W. T. Meyer, Jan Ridky, M. Pernicka, G. Cosme, M. Winter, B.D. Hyams, F. Udo, P. Lutz, P. Herquet, H. B. Crawley, P. Yepes, R. Contri, Olga Botner, L. Bugge, U. Nau-Korzen, E. I. Rosenberg, A. M. Segar, Mikko Voutilainen, D. Z. Toet, Y. Sacquin, P. David, P. S. Iversen, F. Fontanelli, F. Adami, G. Vegni, N. Brummer, Borge Svane Nielsen, K. Kurvinen, A. N. Sissakian, J. J. Lozano, Javier Sánchez, C. Astor Ferreres, J. E. Campagne, C. Kourkoumelis, Krzysztof Doroba, Manolis Dris, J. Velasco, Yu. Sedykh, T. Bolognese, K. Woschnagg, W. K. Van Doninck, F. Richard, W. H. Range, C. Matteuzzi, Claudia J. Stubenrauch, Chiara Meroni, M. Hahn, R. Lucock, H. Mueller, M. Koratzinos, E. Lillethun, J. Pyyhtia, Eleuterio Spiriti, D. Vilanova, S. Almehed, G. Gopal, M. Fernandez Alonso, E. Menichetti, E. J. Sanchez, G. W. Van Apeldoorn, Stefano Ragazzi, V. Obraztsov, R. Lauhakangas, P. Roudeau, L. Ventura, N.K. Vishnevskiy, C. Pinori, B. Dalmagne, M. Sessa, Laurent Chevalier, J. E. Hooper, C. Vander Velde, A. Klovning, F. Cao, U. Mjoernmark, Z. Hajduk, C. Lambropoulos, Ugo Amaldi, W. De Boer, R. Keranen, Hans Muller, Tuure Tuuva, Clara Troncon, Andre Tilquin, E. Zevgolatakos, R. Zitoun, Maciej Górski, Philippe Charpentier, Paolo Pasini, Daniel Treille, Mario Sannino, M. Davenport, A. Hakansson, P. N. Bogolubov, B. Bouquet, I. A. Tyapkin, T. S. Spassoff, T. Kreuzberger, S. Braibant, E. Dahl-Jensen, A.J. Camacho Rozas, R. Strub, G. Galeazzi, Natale Demaria, P. V. Chliapnikov, K. Moenig, A. Markou, J. Lindgren, George Kalkanis, C. De La Vaissiere, P. B. Renton, Milos Lokajicek, J. Kesteman, D. C. Fries, J. Skeens, R. Orava, E. C. Katsoufis, M. Kopf, N. I. Zimin, Jan Krolikowski, W. Bartl, Marta Calvi, Vincenzo Canale, P. Negri, Geoffrey Smith, E. Fokitis, J.H. Bibby, R. Pain, A. Ruiz, J. Cuevas Maestro, Göran Jarlskog, G. D. Alexeev, Nikolai Smirnov, J. A. Valls Ferrer, J. P. Laugier, W. D. Apel, Ugo Gasparini, M. Pimenta, B. A. Khomenko, N. De Groot, M. E. Veitch, A. Stocchi, Francesco Navarria, J. Dolbeau, J. Zúñiga, J.V. Allaby, P.S.L. Booth, P. N. Ratoff, Guido Barbiellini, J. Guy, L. Tortora, F. J. Harris, Tim Adye, A.K. Topphol, J. Bjarne, W. Krupinski, A. Lopez-Fernandez, C. Defoix, D. Wormald, J. Marco, M. P. Clara, F. Fulda-Quenzer, E. Graziani, J. M. Brunet, F. Hahn, H. Foeth, K. Spang, A. Campion, R. Zukanovich Funchal, Craig Buttar, A. De Angelis, D. Delikaris, H. Wahlen, Ariel Goobar, J. H. Koehne, N. van Eijndhoven, K. H. Becks, E. Vallazza, J. Werner, Daniel Bloch, Ahmimed Ouraou, V.M. Golovatyuk, G. Borisov, M. Baubillier, D. Bertrand, A. M. Zaitsev, Alexander Vodopyanov, E. Tchernyaev, F. Bianchi, Kjell Fransson, M.A. Lopez Aguera, Francesca Romana Cavallo, Mitchell Wayne, V. V. Lapin, C. De Clercq, M. Jonker, A. B. Fenyuk, P. Kapusta, P. Beltran, Tiziano Camporesi, B. Lund-Jensen, A. Passeri, G. Skjevling, N. G. Redaelli, Marco Bozzo, Mikael Berggren, V. Lepeltier, P. Frenkiel, P. Ioannou, J. W. Lamsa, F. Barao, F. Waldner, K. D. Brand, Paolo Checchia, M. L. Turluer, C. Walck, D. Reid, E. Higon, R. Seufert, G. Sette, F. Alted, W. Dulinski, T. Odegaard, Gianni Zumerle, Ph. Gavillet, H. De Boeck, M. Tyndel, F. Scuri, Valery Pozdnyakov, M. Pegoraro, P. Poropat, J. Maillard, A. M. Wetherell, L. Lanceri, D. Husson, P. Privitera, Andre Augustinus, A. Firestone, V. Perevozchikov, Piotr Zalewski, M. Vollmer, U. Rossi, Paolo Giacomelli, P. O. Hulth, B. Grossetete, Allan Hallgren, Giovanni Valenti, Antonio Baroncelli, M. Schaeffer, V.A. Uvarov, U. Kruener-Marquis, Paolo Ronchese, G. Tristram, Paula Eerola, D.N. Edwards, P. Delpierre, G. E. Kalmus, E. Daubie, J. N. Jackson, P. Kokkinias, S. Ferroni, G. Myatt, Pierre Billoir, J.M. Gago, R. Dzhelyadin, Jose M. Benlloch, A. Grant, M.I. Laakso, Hans Dijkstra, A. De Min, Joao Varela, P. Kluit, S. Ueberschaer, A. Maltezos, F. Verbeure, C. Bricman, R. Moeller, Roberto Cirio, L. K. Resvanis, Massimo Caccia, Vladimir Nikolaenko, Y.N. Gotra, P. Juillot, Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Abreu, P, Adam, W, Adami, F, Adye, T, Alexeev, G, Allaby, J, Allen, P, Almehed, S, Alted, F, Alvsvaag, S, Amaldi, U, Anassontzis, E, Apel, W, Asman, B, Ferreres, C, Augustin, J, Augustinus, A, Baillon, P, Bambade, P, Barao, F, Barbiellini, G, Bardin, D, Baroncelli, A, Barring, O, Bartl, W, Bates, M, Baubillier, M, Becks, K, Beeston, C, Beilliere, P, Belokopytov, I, Beltran, P, Benedic, D, Benlloch, J, Berggren, M, Bertrand, D, Biagi, S, Bianchi, F, Bibby, J, Bilenky, M, Billoir, P, Bjarne, J, Bloch, D, Bogolubov, P, Bollini, D, Bolognese, T, Bonapart, M, Booth, P, Boratav, M, Borgeaud, P, Borisov, G, Borner, H, Bosio, C, Botner, O, Bouquet, B, Bozzo, M, Braibant, S, Branchini, P, Brand, K, Brenner, R, Bricman, C, Brown, R, Brummer, N, Brunet, J, Bugge, L, Buran, T, Burmeister, H, Buttar, C, Buytaert, J, Caccia, M, Calvi, M, Camacho Rozas, A, Campagne, J, Campion, A, Camporesi, T, Canale, V, Cao, F, Carroll, L, Caso, C, Castelli, E, Castillo Gimenez, M, Cattai, A, Cavallo, F, Cerrito, L, Charpentier, P, Checchia, P, Chelkov, G, Chevalier, L, Chliapnikov, P, Chorowicz, V, Cirio, R, Clara, M, Contreras, J, Contri, R, Cosme, G, Couchot, F, Crawley, H, Crennell, D, Cresti, M, Crosetti, G, Crosland, N, Crozon, M, Maestro, J, Czellar, S, Dagoret, S, Dahl-Jensen, E, Dalmagne, B, Dam, M, Damgaard, G, Darbo, G, Daubie, E, Davenport, M, David, P, De Angelis, A, De Beer, M, De Boeck, H, De Boer, W, De Clercq, C, De Fez Laso, M, De Groot, N, De La Vaissiere, C, De Lotto, B, De Min, A, Defoix, C, Delikaris, D, Delpierre, P, Demaria, N, Di Ciaccio, L, Diddens, A, Dijkstra, H, Djama, F, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Dris, M, Dulinski, W, Dzhelyadin, R, Edwards, D, Eek, L, Eerola, P, Ekelof, T, Ekspong, G, Engel, J, Falaleev, V, Fenyuk, A, Alonso, M, Ferrer, A, Ferroni, S, Filippas, T, Firestone, A, Foeth, H, Fokitis, E, Fontanelli, F, Forsbach, H, Franek, B, Fransson, K, Frenkiel, P, Fries, D, Fruhwirth, R, Fulda-Quenzer, F, Furstenau, H, Fuster, J, Gago, J, Galeazzi, G, Gamba, D, Gasparini, U, Gavillet, P, Gawne, S, Gazis, E, Giacomelli, P, Glitza, K, Gokieli, R, Golovatyuk, V, Goobar, A, Gopal, G, Gorski, M, Gotra, Y, Gracco, V, Grant, A, Grard, F, Graziani, E, Gros, M, Grosdidier, G, Grossetete, B, Gumenyuk, S, Guy, J, Hahn, F, Hahn, M, Haider, S, Hajduk, Z, Hakansson, A, Hallgren, A, Hamacher, K, De Monchenault, G, Harris, F, Heck, B, Herbst, I, Hernandez, J, Herquet, P, Herr, H, Higon, E, Hilke, H, Hofmokl, T, Holmes, R, Holmgren, S, Hooper, J, Houlden, M, Hrubec, J, Hulth, P, Hultqvist, K, Husson, D, Hyams, B, Ioannou, P, Iversen, P, Jackson, J, Jalocha, P, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E, Jonker, M, Jonsson, L, Juillot, P, Kadyrov, R, Kalkanis, G, Kalmus, G, Kantardjian, G, Kapusta, F, Kapusta, P, Katsanevas, S, Katsoufis, E, Keranen, R, Kesteman, J, Khomenko, B, King, B, Klein, H, Klempt, W, Klovning, A, Kluit, P, Koehne, J, Koene, B, Kokkinias, P, Kopf, M, Koratzinos, M, Korcyl, K, Korzen, B, Kourkoumelis, C, Kreuzberger, T, Krolikowski, J, Kruener-Marquis, U, Krupinski, W, Kucewicz, W, Kurvinen, K, Laakso, M, Lambropoulos, C, Lamsa, J, Lanceri, L, Lapin, V, Laugier, J, Lauhakangas, R, Laurikainen, P, Leder, G, Ledroit, F, Lemonne, J, Lenzen, G, Lepeltier, V, Letessier-Selvon, A, Lieb, E, Lillestol, E, Lillethun, E, Lindgren, J, Lippi, I, Llosa, R, Loerstad, B, Lokajicek, M, Loken, J, Lopez Aguera, M, Lopez-Fernandez, A, Loukas, D, Lozano, J, Lucock, R, Lund-Jensen, B, Lutz, P, Lyons, L, Maehlum, G, Maillard, J, Maltezos, A, Mandl, F, Marco, J, Marin, J, Markou, A, Mathis, L, Matteuzzi, C, Matthiae, G, Mazzucato, M, Cubbin, M, Kay, R, Menichetti, E, Meroni, C, Meyer, W, Mitaroff, W, Mitselmakher, G, Mjoernmark, U, Moa, T, Moeller, R, Moenig, K, Monge, M, Morettini, P, Mueller, H, Muller, H, Myatt, G, Naraghi, F, Nau-Korzen, U, Navarria, F, Negri, P, Nielsen, B, Nigro, M, Nikolaenko, V, Obraztsov, V, Odegaard, T, Orava, R, Ostankov, A, Ouraou, A, Pain, R, Palka, H, Papadopoulou, T, Pape, L, Pasini, P, Passeri, A, Pegoraro, M, Perevozchikov, V, Pernicka, M, Pimenta, M, Pingot, O, Pinori, C, Pinsent, A, Pol, M, Polok, G, Poropat, P, Pozdnyakov, V, Privitera, P, Pullia, A, Pyyhtia, J, Rademakers, A, Radojicic, D, Ragazzi, S, Range, W, Ratoff, P, Read, A, Redaelli, N, Regler, M, Reid, D, Renton, P, Resvanis, L, Richard, F, Ridky, J, Rinaudo, G, Roditi, I, Romero, A, Ronchese, P, Rosenberg, E, Rossi, U, Rosso, E, Roudeau, P, Rovelli, T, Ruhlmann, V, Ruiz, A, Saarikko, H, Sacquin, Y, Sanchez, E, Sanchez, J, Sanchis, E, Sannino, M, Schaeffer, M, Schneider, H, Scuri, F, Sebastia, A, Sedykh, Y, Segar, A, Sekulin, R, Sessa, M, Sette, G, Seufert, R, Shellard, R, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A, Skaali, T, Skeens, J, Skjevling, G, Smadja, G, Smirnov, N, Smith, G, Sosnowski, R, Spang, K, Spassoff, T, Spiriti, E, Squarcia, S, Staeck, H, Stanescu, C, Stavropoulos, G, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stubenrauch, C, Szczekowski, M, Szeptycka, M, Szymanski, P, Tavernier, S, Tchernyaev, E, Theodosiou, G, Tilquin, A, Timmermans, J, Tkatchev, L, Toet, D, Topphol, A, Tortora, L, Treille, D, Trevisan, U, Tristram, G, Troncon, C, Tsyganov, E, Turala, M, Turchetta, R, Turluer, M, Tuuva, T, Tyapkin, I, Tyndel, M, Tzamarias, S, Udo, F, Ueberschaer, S, Uvarov, V, Valenti, G, Vallazza, E, Valls Ferrer, J, Van Apeldoorn, G, Van Dam, P, Van Doninck, W, Van Eijndhoven, N, Vander Velde, C, Varela, J, Vaz, P, Vegni, G, Veitch, M, Velasco, J, Ventura, L, Venus, W, Verbeure, F, Vertogradov, L, Vibert, L, Vilanova, D, Vishnevskiy, N, Vlasov, E, Vodopyanov, A, Vollmer, M, Voulgaris, G, Voutilainen, M, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Wayne, M, Weilhammer, P, Werner, J, Wetherell, A, Wickens, J, Williams, W, Winter, M, Wormald, D, Wormser, G, Woschnagg, K, Yamdagni, N, Yepes, P, Zaitsev, A, Zalewska, A, Zalewski, P, Zevgolatakos, E, Zhang, G, Zimin, N, Zitoun, R, Funchal, R, Zumerle, G, and Zuniga, J
Subjects: Physics, Particle physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, High Energy Physics::Phenomenology, 01 natural sciences, Standard Model, 0103 physical sciences, Higgs boson, Physique des particules élémentaires, Física nuclear, High Energy Physics::Experiment, Selection method, 010306 general physics, Particle Physics - Experiment
Abstract: Using a data sample corresponding to 10 000 hadronic Z0 decays, we have searched for the production of sleptons and gauginos in the two-prong decays of Z0. No candidate remains after straightforward selections. For neutralinos, we use selection methods developed in our previous search for neutral Higgs particles. The negative results are translated into improved mass limits and parameter constraints on the minimal supersymmetric extension of the standard model., 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 1990

31. Search for heavy charged scalars in Z$^0$ Decays

Author: S. O. Holmgren, A. Markou, George Kalkanis, P. B. Renton, D. C. Fries, L. O. Eek, R. C. Shellard, Josef Hrubec, K. W. Glitza, A. Zinchenko, H. Foeth, M. E. Veitch, A. M. Segar, J. Skeens, E. Vela, F. Couchot, E. C. Katsoufis, P. Negri, Tiziano Camporesi, P. S. Iversen, F. Fontanelli, Marta Calvi, J. Bjarne, Craig Buttar, Geoffrey Smith, W. Kucewicz, A. De Angelis, D. Delikaris, G. Cosme, J.H. Bibby, A. Baroncelli, N. G. Redaelli, C. Astor Ferreres, E. G. Anassontzis, J. P. Engel, M. V. Castillo Gimenez, Y. E. Bonyushkin, N. van Eijndhoven, J. Werner, Marco Bozzo, Daniel Bloch, Göran Jarlskog, R. Lauhakangas, C. Stanescu, G. Damgaard, O. Pingot, A. Letessier-Selvon, G. Vegni, N. Brummer, Ahmimed Ouraou, V.M. Golovatyuk, B. Korzen, W. H. Range, E. Zevgolatakos, J. Pyyhtia, R.B. Kadyrov, V. Gracco, M. Sessa, Pavlos Ioannou, P. Frenkiel, F. Waldner, W. D. Apel, W. Klempt, F. Hahn, Mario Sannino, M. A. Lopez Aguera, S. Braibant, M. Bonapart, M. Kopf, D.Yu. Bardin, D. Bertrand, P. Siegrist, M. A. Houlden, Sandor Czellar, G. Polok, C. Vander Velde, K. D. Brand, C. Walck, Tiziano Rovelli, M. Cresti, S. Gawne, G. Kantardjian, G. D. Alekseev, E. Sanchis, J.V. Allaby, J.A. Valls, R. Zitoun, Jon Christopher Wikne, C. Defoix, A. M. Lopez, R. Orava, Fernand Grard, R. Sekulin, R. Gokieli, H. Forsbach, G. Zhang, A. P. Ostankov, Luc Pape, J-C. Marin, T. Moa, F. Alted, G. Maehlum, C. Lambropoulos, Ugo Amaldi, W. De Boer, J. E. Augustin, Spyros Tzamarias, M. Mc Cubbin, Z. Hajduk, Louis Lyons, B. Koene, A.N. Diddens, F. Fulda-Quenzer, Maciej Górski, B. Bouquet, Tord Ekelof, H. Staeck, K. Hultqvist, P. Kokkinias, S. Haider, Tuure Tuuva, Clara Troncon, A. Hakansson, Stefaan Tavernier, C. Caso, M. Boratav, J. M. Brunet, M. Davenport, G. W. Van Apeldoorn, D. Langerveld, G. Wormser, J. Dolbeau, Pieter David, E. Graziani, B. Loerstad, W. Dulinski, P. V. Chliapnikov, P. Bambade, P.S.L. Booth, P. N. Ratoff, T. Kreuzberger, W. Van Doninck, A. A. Rademakers, Francesca Romana Cavallo, H. B. Crawley, L. Ventura, A. Sebastia, D. Vilanova, W. Krupinski, Mitchell Wayne, F. Stichelbaut, Paolo Morettini, B. De Lotto, J. G. Loken, Demetrios Loukas, G. Crosetti, Evgueni Vlasov, R. Mc Kay, P. Beilliere, H. Burmeister, D. Sacco, Charles Bricman, W.S.C. Williams, E. Lieb, M. Pernicka, H. Herr, L. G. Tkatchev, F. Ledroit, G. Stavropoulos, Robert S. Brown, W. A. Mitaroff, F. Richard, C. Matteuzzi, M. Hahn, T. Buran, Hans Muller, H. J. Hilke, V. V. Lapin, Cesare Chiccoli, Itzhak Roditi, Gueorgui Chelkov, F. Adami, Th. D. Papadopoulou, Guenakh Mitselmakher, S. Almehed, V. Chorowicz, Jesus Marco, G. Lenzen, R. Strub, J. E. Campagne, Maria Roberta Monge, A. Zalewska, W. T. Meyer, N. I. Zimin, M. P. Clara, P. N. Bogolubov, Ugo Gasparini, M. Koratzinos, C. De Clercq, C. Pinori, Christine Kourkoumelis, E. Dahl-Jensen, Olga Botner, Krzysztof Korcyl, R. Pain, Wolfgang Adam, N. Crosland, Edoardo Castelli, Patrick Jarry, G. Rinaudo, A. S. Vodopianov, Jacques Lemonne, V. Ruhlmann, Guido Barbiellini, M. Fernandez Alonso, V. Obraztsov, Ariella Cattai, J. Guy, G. E. Theodosiou, O. Barring, S. Dagoret, P. Vaz, G. Ekspong, M. Mazzucato, M. Schaeffer, A. Passeri, R. Keranen, Philippe Charpentier, Klaus Hamacher, J. Drees, P. Szymanski, L. Bugge, A. J. Camacho Rozas, D. Z. Toet, Tim Adye, D. Bollini, M.D.M. De Fez Laso, Giovanni Darbo, P. Laurikainen, G. Hamel de Monchenault, P. Van Dam, Renato Turchetta, C. De La Vaissiere, S. Biagi, K. Spang, L. Cerrito, S. Gumenyuk, R. A. Brenner, Evangelos Gazis, S. Simonetti, A. Campion, G. Sette, L. Mathis, S. J. Alvsvaag, Maria Elena Pol, M. Jonker, Daniel Treille, H. P. Borner, L. Vibert, S. Katsanevas, Josef Strauss, E. Menichetti, Leif J. Jönsson, B.D. Hyams, E. I. Rosenberg, W. Venus, Stefano Ragazzi, P. Branchini, H. Schneider, N. Yamdagni, K. Kurvinen, Paul Baillon, R. Lucock, F. Cao, J. Velasco, H. De Boeck, B. Jean-Marie, M. Tyndel, J. Lindgren, Pawel Jalocha, Barry King, R. Zukanovich Funchal, M. Dracos, R. Frühwirth, U. Trevisan, Alexander Lincoln Read, Marc Winter, M. Szeptycka, Mogens Dam, T. A. Filippas, M. Pegoraro, A. B. Fenyuk, J. Maillard, J. Timmermans, E. K. Johansson, C. Bosio, M. De Beer, M. Regler, V. Vrba, H. Wahlen, Y. Sacquin, G. Galeazzi, A. Ferrer, B. Franek, K. Moenig, V. Perevozchikov, Ariel Goobar, J. H. Koehne, Luca Tortora, T. Bolognese, E. Fokitis, P. Abreu, P. Borgeaud, K. H. Becks, E. Vallazza, P. Herquet, R. Contri, U. Nau-Korzen, M. Turala, D. Husson, I. A. Tyapkin, T. S. Spassoff, R. Llosa, C. J. Beeston, Manolis Dris, A. Pinsent, S. Squarcia, R. Holmes, H. Saarikko, P. Roudeau, G. Borisov, E. Lillethun, M. Baubillier, H. Mueller, A. M. Zaitsev, K. Pakonski, E. Tchernyaev, F. Bianchi, Mikael Berggren, V. Lepeltier, Kjell Fransson, H. Palka, G. Skjevling, J. W. Lamsa, F. Barao, Paolo Checchia, E. Higon, R. Seufert, F. Scuri, J. Cuevas Maestro, A. M. Wetherell, L. Lanceri, L. Di Ciaccio, U. Kruener-Marquis, Ph. Gavillet, Paolo Ronchese, M. L. Turluer, D. Reid, G. Tristram, Paula Eerola, D.N. Edwards, G. E. Kalmus, A. Firestone, Gianni Zumerle, M. Vollmer, Paolo Giacomelli, P. Poropat, B. Grossetete, Allan Hallgren, Giovanni Valenti, P. Privitera, Andre Augustinus, Piotr Zalewski, J. J. Hernandez, P. O. Hulth, P. Delpierre, E. Daubie, B. Lund-Jensen, G. Myatt, V.A. Uvarov, J.M. Gago, Janet Harris, R. Moeller, J. N. Jackson, Roberto Cirio, L. K. Resvanis, S. Ferroni, Massimo Caccia, Pierre Billoir, Vladimir Nikolaenko, R. Dzhelyadin, P. Juillot, F. Djama, Jose M. Benlloch, A. Grant, G. Matthiae, V. Canale, M.I. Laakso, Hans Dijkstra, R. Sosnowski, F. Naraghi, E. Lillestol, Joao Varela, M. Voutilainen, G. Grosdidier, M. Crozon, Alessandra Romero, A. Ruiz, J. Kesteman, S. Ueberschaer, A. N. Sissakian, Claudia J. Stubenrauch, Eleuterio Spiriti, B. Dalmagne, Laurent Chevalier, A. Maltezos, Milos Lokajicek, A.K. Topphol, J. E. Hooper, A. Pullia, F. Simonetto, T. Hofmokl, A. Tilquin, Marek Szczekowski, G. Leder, B. Åsman, E. Rosso, H. Klein, M. Nigro, D. Crennell, F. Mandl, P. Beltran, G. Smadja, K. Woschnagg, G. Gopal, E. J. Sanchez, P. Simone, M. J. Bates, Toralf Bernhard Skaali, B. W. Heck, D. Gamba, G. Voulgaris, F. Verbeure, F. Kapusta, V. Falaleev, I. Herbst, Juan Fuster, M. S. Bilenky, L.J. Carroll, P. Weilhammer, I. Belokopytov, I. Lippi, Peter M. Allen, M. Pimenta, E.N. Tsyganov, J. H. Wickens, Jose Luis Contreras, D. Radojicic, Jan Ridky, B. A. Khomenko, N. De Groot, F. Udo, P. Lutz, A. Stocchi, Francesco Navarria, J. Zúñiga, P. Kapusta, Borge Svane Nielsen, J. J. Lozano, M. H. Gros, Krzysztof Doroba, Chiara Meroni, Jan Buytaert, D. Benedic, Peter Kluit, A. Klovning, U. Mjoernmark, Paolo Pasini, Andrey Korytov, Jan Krolikowski, W. Bartl, H. Fuerstenau, B. V. Batyunia, J. P. Laugier, Natale Demaria, 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), DELPHI, Abreu, P., Adam, W., Canale, Vincenzo, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Range (particle radiation), Internet, 010308 nuclear & particles physics, Electron–positron annihilation, 01 natural sciences, teaching, Nuclear physics, 0103 physical sciences, Domain (ring theory), course packs, Physique des particules élémentaires, Higgs boson, ComputingMilieux_COMPUTERSANDEDUCATION, editors, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Física nuclear, 010306 general physics, Particle Physics - Experiment
Abstract: Using a sample of Z0's corresponding to about 12 000 events, we have searched for the production of charged scalars, primarily charged Higgs particles, decaying into c̄scs̄, τν+jets, and τντν. The average detection efficiency is 20%. No candidate was found in the leptonic modes. Masses in the range up to 30-36 GeV/c2 are excluded, extending the mass domain covered by previous e+e- machines., 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 1990

32. A precise measurement of the Z resonance parameters through its hadronic decays

Author: G. Sette, P. Siegrist, J-C. Marin, Spyros Tzamarias, H. De Boeck, B. Jean-Marie, M. Tyndel, P. Vaz, J. Maillard, P. Queru, D. Bollini, G. Lenzen, A. A. Rademakers, V. Perevozchikov, S. Biagi, H. P. Borner, H. Foeth, Ugo Gasparini, E. Vela, P. Negri, J.H. Bibby, Craig Buttar, A. De Angelis, D. Delikaris, M. De Beer, Guido Barbiellini, J. Guy, Göran Jarlskog, J. P. Engel, M. V. Castillo Gimenez, N. van Eijndhoven, V. Ruhlmann, J. Werner, Daniel Bloch, Y. Sacquin, Ahmimed Ouraou, G. Damgaard, V.M. Golovatyuk, O. Pingot, G. W. Van Apeldoorn, L. Bugge, A. Letessier-Selvon, Tim Adye, A. J. Camacho Rozas, E. Castelli, L. Ventura, A. Sebastia, D. Z. Toet, T. Bolognese, Hans Muller, W. D. Apel, G. Ekspong, P. N. Bogolubov, A. Campion, E. Dahl-Jensen, Giovanni Darbo, V. Graco, M. A. Houlden, S. O. Holmgren, L. S. Vertogradov, S. Simonetti, R. Zukanovich Funchal, Marc Winter, D. Husson, Sandor Czellar, T. Todorov, L. O. Eek, R. C. Shellard, Josef Hrubec, I. A. Tyapkin, T. S. Spassoff, H. Wahlen, Tiziano Camporesi, G. Polok, R. Lucock, Ariel Goobar, J. H. Koehne, Patrick Jarry, G. Rinaudo, T. Buran, C. Vander Velde, A. M. Segar, G. Cosme, A. Baroncelli, Natale Demaria, A. Sadovsky, P. S. Iversen, F. Fontanelli, A. Markou, J. E. Augustin, N. G. Redaelli, George Kalkanis, P. B. Renton, Maria Elena Pol, D. C. Fries, Marco Bozzo, J. Skeens, K. H. Becks, E. C. Katsoufis, E. Vallazza, Marta Calvi, Geoffrey Smith, F. Alted, C. Astor Ferreres, W.S.C. Williams, P. Frenkiel, P. Ioannou, G. Hamel de Monchenault, M. E. Veitch, F. Couchot, M. Bonapart, C. Lambropoulos, Ugo Amaldi, W. De Boer, W. Kucewicz, C. Caso, Olga Botner, Krzysztof Korcyl, F. Ledroit, G. Stavropoulos, Josef Strauss, E. Lieb, E. Zevgolatakos, F. Waldner, K. D. Brand, S. Katsanevas, M. Pernicka, M. Boratav, V. Chorowicz, C. Walck, J. Bjarne, W. Venus, J. Velasco, Jesus Marco, R. Strub, J. E. Campagne, Louis Lyons, Tuure Tuuva, G. Wormser, B. Korzen, Pieter David, Clara Troncon, B.D. Hyams, M. L. Turluer, B. Koene, E. Menichetti, A.N. Diddens, E. I. Rosenberg, Ariella Cattai, S. Braibant, H. B. Crawley, R.B. Kadyrov, Stefano Ragazzi, Itzhak Roditi, Gueorgui Chelkov, Stefaan Tavernier, A. M. Lopez, P. Laurikainen, M. Koratzinos, D. Reid, J. Drees, F. Hahn, E. Graziani, T. Kreuzberger, W. Van Doninck, K. Kurvinen, W. Krupinski, R. Sekulin, Paolo Morettini, J. G. Loken, Leif J. Jönsson, Evangelos Gazis, P. Beilliere, H. J. Hilke, M. Mazzucato, A. S. Vodopianov, W. A. Mitaroff, Demetrios Loukas, M. Jonker, Luca Tortora, T. A. Filippas, M. Regler, V. Vrba, M. Kopf, T. Moa, G. Maehlum, F. Cao, N. Crosland, U. Trevisan, F. Udo, Tord Ekelof, P. Szymanski, H. Staeck, N. I. Zimin, M. Dracos, E. K. Johansson, F. Richard, C. Matteuzzi, A. Sazonov, M. Hahn, S. Almehed, Francesca Romana Cavallo, A. B. Fenyuk, Mitchell Wayne, F. Stichelbaut, P. Herquet, R. Contri, Gianni Zumerle, U. Nau-Korzen, M. Turala, J.V. Allaby, J.A. Valls, R. Pain, R. Mc Kay, Cesare Chiccoli, S. Haider, B. Franek, O. Barring, C. Bosio, B. Loerstad, Maria Roberta Monge, A. Zalewska, H. Burmeister, S. Dagoret, C. Pinori, F. Adami, V. V. Lapin, R. Zitoun, Jon Christopher Wikne, Manolis Dris, Klaus Hamacher, Robert S. Brown, P. Roudeau, C. Defoix, P. Van Dam, F. Fulda-Quenzer, W. T. Meyer, G. E. Theodosiou, Z. Hajduk, P. Abreu, P. Borgeaud, Maciej Górski, K. W. Glitza, Jacques Lemonne, Renato Turchetta, D. Sacco, C. De La Vaissiere, R. Llosa, R. Keranen, Mikael Berggren, C. De Clercq, Wolfgang Adam, Tiziano Rovelli, M. Cresti, Daniel Treille, S. Gawne, Philippe Charpentier, E. Lillethun, M. Davenport, Matteo Pegoraro, J. M. Brunet, P. Poropat, M. Schaeffer, K. Spang, L. Cerrito, G. Kantardjian, H. Mueller, A. Hakansson, D. Langerveld, A. Passeri, V. Lepeltier, Andre Augustinus, G. Galeazzi, A. Ferrer, M.D.M. De Fez Laso, R. Lauhakangas, U. Kruener-Marquis, V. Canale, S. Gumenyuk, R. A. Brenner, S. J. Alvsvaag, K. Moenig, W. Dulinski, P. V. Chliapnikov, Paolo Checchia, Pawel Jalocha, Barry King, R. Frühwirth, J. Timmermans, Paolo Ronchese, C. J. Beeston, J. Lindgren, G. Vegni, N. Brummer, H. Forsbach, G. Zhang, A. P. Ostankov, Ph. Gavillet, Mario Sannino, M. A. Lopez Aguera, M. Sessa, C. Stanescu, L. Mathis, K. Denisenko, E. Fokitis, W. H. Range, G. D. Alekseev, J. Pyyhtia, A. Pinsent, Luc Pape, R. Orava, D.Yu. Bardin, R. Gokieli, P. Privitera, G. Borisov, S. Squarcia, R. Holmes, H. Saarikko, N. Yamdagni, Piotr Zalewski, B. De Lotto, B. Bouquet, Mogens Dam, Paul Baillon, Alexander Lincoln Read, M. Szeptycka, M. Baubillier, G. Crosetti, Evgueni Vlasov, H. Herr, L. G. Tkatchev, M. Mc Cubbin, K. Hultqvist, J. Dolbeau, P. Kokkinias, M. Fernandez Alonso, P. Bambade, G. Tristram, P.S.L. Booth, P. N. Ratoff, V.A. Uvarov, Th. D. Papadopoulou, V. Obraztsov, Guenakh Mitselmakher, Charles Bricman, Paula Eerola, A. M. Zaitsev, D.N. Edwards, C. Kourkoumelis, D. Vilanova, G. E. Kalmus, M. P. Clara, H. Palka, G. Skjevling, J. N. Jackson, L. Vibert, P. Branchini, J. W. Lamsa, H. Schneider, S. Ferroni, K. Pakonski, E. Tchernyaev, F. Bianchi, Kjell Fransson, F. Barao, Pierre Billoir, R. Dzhelyadin, E. Higon, R. Seufert, J. J. Hernandez, Jose M. Benlloch, A. Grant, P. O. Hulth, M.I. Laakso, F. Scuri, Hans Dijkstra, A. M. Wetherell, J. Cuevas Maestro, L. Lanceri, P. Delpierre, E. Daubie, L. Di Ciaccio, A. Firestone, M. Vollmer, D. Bertrand, Paolo Giacomelli, G. Myatt, J.M. Gago, Janet Harris, B. Grossetete, Allan Hallgren, Giovanni Valenti, R. Moeller, Roberto Cirio, L. K. Resvanis, Massimo Caccia, Vladimir Nikolaenko, P. Juillot, F. Djama, E. Sanchis, B. Lund-Jensen, M. Voutilainen, Joao Varela, G. Grosdidier, M. Crozon, S. Ueberschaer, A. Maltezos, Alessandra Romero, A. Ruiz, Claudia J. Stubenrauch, Eleuterio Spiriti, G. Matthiae, R. Sosnowski, F. Naraghi, E. Lillestol, B. Dalmagne, Laurent Chevalier, M. Nigro, Milos Lokajicek, J. Kesteman, K. Woschnagg, G. Gopal, A.K. Topphol, J. E. Hooper, E. J. Sanchez, P. Simone, A. Pullia, W. Klempt, T. Hofmokl, Marek Szczekowski, E. Rosso, H. Klein, M. S. Bilenky, M. J. Bates, L.J. Carroll, Toralf Bernhard Skaali, D. Gamba, P. Weilhammer, I. Belokopytov, E. Anassontzis, G. Voulgaris, F. Simonetto, F. Verbeure, F. Kapusta, A. Tilquin, G. Leder, B. Åsman, Fernand Grard, D. Crennell, F. Mandl, P. Beltran, G. Smadja, B. W. Heck, I. Herbst, V. Falaleev, I. Lippi, E.N. Tsyganov, J. H. Wickens, Jose Luis Contreras, Juan Fuster, D. Radojicic, Jan Ridky, P. Lutz, Peter M. Allen, M. Pimenta, B. A. Khomenko, N. De Groot, A. Stocchi, Francesco Navarria, J. Zúñiga, A. Klovning, U. Mjoernmark, Paolo Pasini, Jan Krolikowski, W. Bartl, H. Fuerstenau, J. P. Laugier, P. Kapusta, Borge Svane Nielsen, J. J. Lozano, M. H. Gros, Krzysztof Doroba, Chiara Meroni, Jan Buytaert, D. Benedic, Peter Kluit, 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), Abreu, P., Adam, W., Canale, Vincenzo, Heyd, Yvette, and 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)
Subjects: Nuclear and High Energy Physics, Particle physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], pragmatism, truth, Electron–positron annihilation, Hadron, fiction, possible worlds, 01 natural sciences, Resonance (particle physics), web, Standard Model, RDF, Nuclear physics, Cross section (physics), semantic web, esthetics, 0103 physical sciences, memetic, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Nuclear Experiment, metalanguage, modal logic, Physics, Internet, 010308 nuclear & particles physics, trust, 3. Good health, Massless particle, Physique des particules élémentaires, High Energy Physics::Experiment, Física nuclear, Neutrino, Beam (structure), Particle Physics - Experiment
Abstract: A measurement of the cross section for e+e-→ hadrons using 11 000 hadronic decays of the Z boson at ten different center-of-mass energies is presented. A three-parameter fit gives the following values for the Z mass MZ, the total width ΓZ, the product of the electronic and hadronic partial widths ΓeΓh, and the unfolded pole cross section σ0: MZ = 91.171 ± 0.030 (stat.) ± 0.030 (beam) GeV, ΓZ = 2.511 ± 0.065 GeV, ΓeΓh = 0.148 ± 0.006 (stat.) ± 0.004 (syst.) GeV2, σ0 = 41.6 ± 0.7 (stat.) ± 1.1 (syst.) nb, Good agreement with the predictions of the standard model is observed. From a two-parameter fit the number of massless neutrino generations is found to be Nv = 2.91 ± 0.26. Thus the hypothesis of a fourth neutrino with mass less than 40 GeV is excluded with 95% confidence level. Combining the cross section measurements with the ratio Γl/Γh reported in another DELPHI paper [Phys. Lett. B 241 (1990) 425], the hadronic, leptonic and invisible widths are found to be Γh = 1741 ± 61 MeV, Γl = 85.1 ± 2.9 MeV, Γh/Γl = 20.45 ± 0.98, Γinv = 515 ± 54 MeV, in good agreement with the standard model., 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 1990

33. Inclusive production of Y∗ resonances in K−p interactions at 14.3 GeV/c

Author: C. Louedec, B. Chaurand, S. Borenstein, K. Paler, R.A. Salmeron, M. Spiro, F. Pierre, B. Drevillon, J.M. Gago, A. Borg, R. Barloutaud, M. Bardadin-Otwinowska, S.N. Tovey, and T.P. Shah
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Momentum transfer, Invariant (physics)
Abstract: The inclusive production of Σ+(1385), Σ−(1385), Λ(1405) and Λ(1523) in K−p interactions at 14.3 GeV/c is studied. Cross sections are presented and the x dependence of the invariant cross sections is discussed. The density matrices for production of the spin-32 resonances at small momentum transfer to the target are consistent with spin-0 exchange.
Published: 1975

34. Inclusive antilambda production in K−p interactions at 14.3 GeV/c

Author: S.N. Tovey, T.P. Shah, G. Labrosse, S. Spiro, K. Paler, B. Chaurand, A. Borg, J.M. Gago, B. Lestienne, R. Barloutaud, C. Louedec, and M. Bardadin-Otwinowska
Subjects: Physics, Nuclear physics, Particle physics, Distribution (number theory), Transverse momentum, General Physics and Astronomy, Polarization (waves)
Published: 1975

35. Is the Λ polarization in inclusive K−p compatible with QCD?

Author: R. Vilela Mendes, P. Vaz, and J.M. Gago
Subjects: Physics, Nuclear physics, Quantum chromodynamics, Nuclear and High Energy Physics, Strange quark, Scattering, Polarization (waves)
Abstract: Λ polarization in the K− fragmentation region of K− p → Λ + X, has been observed to be roughly energy independent and increasing with pt. These results are compared with theoretical predictions for scattering in a colour field. Special attention is paid to the kinematical configuration effects arising from the unequal fractions of momentum carried by the initial and final s quark. The main conclusion is that the striking features of the data do not seem to be incompatible with the behavior predicted from a QCD-inspired model.
Published: 1987

36. K−p elastic scattering at 14.3 GeV/c

Author: B. Drevillon, K. Paler, R.A. Salmeron, S. Borenstein, J.M. Gago, T.P. Shah, B. Chaurand, M. Spiro, S.N. Tovey, A. Borg, C. Comber, C. Wohl, and R. Bartloutaud
Subjects: Physics, Nuclear physics, Elastic scattering, Nuclear and High Energy Physics, Cross section (physics), Antiparticle, Meson, Scattering, Hadron, Bubble chamber, Atomic physics, Nucleon
Abstract: Results are presented of a bubble chamber experiment on K − p elastic scattering at 14.3 GeV/ c , in four-momentum transfer range 0.04 t | 2 using an initial set of 40 000 events. The total elastic cross section is (2.96 ± 0.10) mb. The results are compared with K + p elastic scattering data at 13.8 GeV/ c , and the effective Regge trajectory is calculated using K − p data from 5 to 100 GeV/ c .
Published: 1975

37. Inclusive γ production in K− p interactions at 14.3 GeV/c

Author: M. Spiro, S.N. Tovey, G. Labrosse, R.A. Salmeron, B. Chaurand, Y. Pons, R. Lestienne, J.M. Gago, T.P. Shah, F. Pierre, R. Barloutaud, A. Borg, M. Barbadin-Otwinowska, K. Paler, and B. Drevillon
Subjects: Physics, Nuclear and High Energy Physics, Hydrogen bubble, Multiplicity (chemistry), Atomic physics
Abstract: Results are presented on γ production in K− p interactions at 14.3 GeV/c. The analysis is based on 2 541 fitted e+e− pairs in a hydrogen bubble chamber. The inclusive cross section for γ production is found to be (54.5 ± 1.8) mb. The average number of γ's per inelastic event is 2.93 ± 0.12; it exhibits no strong dependence on charged multiplicity. From the PL and PT2 invariant distributions of the γ, a simple function describing the π° invariant distribution is determined.
Published: 1974

38. Search for narrow pp states in baryon exchange reactions

Author: Z. Ajaltouni, L. Bachman, A. de Bellefon, P. Benkheiri, P. Billoir, M. Bogdanski, J.M. Brunet, B. Chaurand, L. Dorsaz, A. Ferrer, L. Fluri, P. Frenkiel, J.M. Gago, B. Lefièvre, D. Perrin, D. Poutot, A. Rougé, P. Sonderegger, P. Triscos, G. Tristram, A. Volte, and J.P. Wuthrick
Subjects: Nuclear physics, Baryon, Physics, Nuclear and High Energy Physics, Particle physics, Pair production, Pion, Meson, Antimatter, Hadron, Elementary particle, Nucleon
Abstract: The results of a search for narrow pp states produced backwards in the baryon exchange reactions π−p→Δf0(1232)pp and π−p→Nf0(1520)pp at at 12 GeV/c and π+p→Δf++(1232)pp at 20 GeV/c, are reported. No structures of statistical significance exceeding three standard deviations have been found in the pp mass spectra. Limits on the cross sections are given and compared with previous results.
Published: 1982

39. Some and final states in K−p reactions at 14.3 GeV/c

Author: G. Labrosse, B. Drevillon, C. Comber, R. Lestienne, R. Barloutaud, R.A. Salmeron, M. Spiro, B. Chaurand, J.M. Gago, K. Paler, C. Wohl, S.N. Tovey, and A. Borg
Subjects: Nuclear physics, Baryon, Physics, Nuclear and High Energy Physics, Particle decay, Particle physics, Pion, Meson, Branching fraction, Isospin, Hadron, Bubble chamber
Abstract: We present data on K−p reactions leading to the final states K0n, π0Λ, ηΛ, η'Λ, π−Σ+, K0Δ0(1230), and π−Σ+ (1385) from a bubble chamber experiment at 14.3 GeV/c K− lab momentum. Total and differential cross sections, Λ and Σ∓ polarisations in π0Λ and π−Σ+ final states as well as the Σ+(1385) density matrix elements are given.
Published: 1976

40. Inclusive and exclusive cross-sections in K−p interactions at 14.3 GeV/c

Author: S.N. Tovey, R. Barloutaud, C. Louedec, H. Abramovicz, K. Paler, R.A. Salmeron, J.M. Gago, C. Comber, J. M. Lafaille, B. Chaurand, A. Borg, Y. Pons, C. Wohl, and B. Drevillon
Subjects: Nuclear physics, Physics, Baryon, Particle physics, Meson, Hadron, Elementary particle, Fermion, Boson
Abstract: The inclusive cross-sections for the production of 0− mesons, 1/2+ and 3/2+ baryons, as well as for some other baryon and meson resonances (Λ(1405), Λ(1520), K*(890), Φ and f′) in 14.3 GeV/c K−p interactions are given. The cross-sections for exclusive 4C and 1C reactions representing altogether about half of the total cross-section are also presented and discussed.
Published: 1977

41. The inclusive reaction K− p → pX at 14.3 GeV/c

Author: R. Barloutaud, G. Labrosse, B. Chaurand, S.N. Tovey, K. Paler, R. Lestienne, R.J. Miller, R.A. Salmeron, J.M. Gago, T.P. Shah, D. Denegri, M. Spiro, B. Drevillon, A. Borg, F. Pierre, and J.J. Phelan
Subjects: Physics, Nuclear physics, Coupling, Scattering cross-section, Nuclear and High Energy Physics, Particle physics, Fragmentation (mass spectrometry), Momentum transfer, Nuclear Experiment
Abstract: We have measured the reaction K − p → pX at 14.3 GeV/ c , in the fragmentation region of the target proton. The differential cross section is studied as a function of momentum transfer and missing mass squared. In the triple-Regge limit, it is consistent with the dominance of a MMP coupling at large t but it is possible that couplings of the type PPP and ππ P also contribute at small | t | values.
Published: 1974

42. The low-mass Kπ system in reactions at 14.3 GeV/c

Author: D. Denegri, C. Comber, B. Drevillon, S.N. Tovey, R. Barloutaud, M. Spiro, R.A. Salmeron, J.M. Gago, K. Paler, Y. Pons, A. Borg, and B. Chaurand
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Component (thermodynamics), Function (mathematics), Low Mass
Abstract: We present experimental results and a partial-wave analysis of the low-mass ( K π) 0 systems produced in the reactions K − p → K π N at 14.3 GeV/ c . The main results concern the production mechanisms of the K ∗ (890) and K ∗ (1420) . We also extract the s-wave component of the K π system as a function of mass.
Published: 1977

43. Inclusive K∗−(890) and production in 14.3 GeV/c K−p interactions

Author: S.N. Tovey, R. Barloutaud, M. Bardadin-Otwinowska, B. Drevillon, R.J. Miller, M. Spiro, B. Chaurand, R.A. Salmeron, J.M. Gago, T.P. Shah, K. Paler, A. Borg, and J.J. Phelan
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Structure function, Quark model, Parity (physics)
Abstract: Results on the inclusive reactions K−p → K∗−(890) + X+ and K−p → K∗0 (890) + X0 at 14.3 GeV/c are presented. A comparison is made with previous data and with the reaction K−p → K0 + X at 14.3 GeV/c. Predictions of a triple-Regge model for the variation of the unnatural and natural parity exchanges with the mass of the X system are examined. The experimental values of the structure functions are compared with those calculated from a quark model.
Published: 1975

44. Experimental comparison of production by π±, K±, p and p̄ beams at 39.5 GeV/c

Author: A. Wijangco, K.C.T.O. Sumorok, M. Jung, P. Seyboth, B. Chaurand, L. Fluri, P. M. Watkins, J. Fent, D. Perrin, P. Sonderegger, J.M. Gago, Daniel Treille, M.J. Corden, R. J. Homer, K. P. Pretzl, R.J. Vallance, G. De Rosny, P.L. Woodworth, R.A. Salmeron, J. Garvey, J. D. Dowell, T. J. McMahon, I. R. Kenyon, J. A. Wilson, J. Seyerlein, D. Eastwood, A. Romana, V. Eckardt, and M. Jobes
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Cross section (physics), chemistry, chemistry.chemical_element, Production (computer science), Copper, Gluon
Abstract: Measurements have been made of relative production cross sections of the J ψ by π±, K±, p and p at 39.5 GeV/c incident on copper. J ψ production rates from π−, K− and p are similar. The J ψ relative particle/anti-particle production cross sections for x>0 are σ(π + ) σ(π − )=(0.87±0.14) , σ(K+)/σ(K−)=(0.85±0.5) and σ( p ) σ( p )=(0.15 ±0.08) . The small p/p cross section ratio disagrees with models of J/ψ production by gluon amalgamation.
Published: 1977

45. Some three-body final states in K−p reactions at 14.3 GeV/c

Author: D. Denegri, C. Comber, A. Borg, K. Paler, Y. Pons, R.A. Salmeron, C. Wohl, R. Barloutaud, B. Drevillon, J.M. Gago, B. Chaurand, S.N. Tovey, and M. Spiro
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, Proton, Mass spectrum, Statistical physics, State (functional analysis), Resonance (particle physics)
Abstract: We present experimental results on a number of K−p reactions at 14.3 GeV/c that have three bodies in the final state. The final states are K−ωp, K−πp, Λπ+π−, ΛK+K−, Λpp, K∗−ωp, Λ(1520)K+K− and Λ(1520) pp. Whenever, with one exception explained by the Zweig rule, there is a K− or a proton in the final state, there is a diffractive-like threshold enhancement in the mass spectrum of the two recoiling particles. These enhancements account for a large fraction of the events in all but the Λπ+π− final state, where they cannot occur, and which is dominated by resonance production. We find evidence for the Q1(1300) decaying into K−ω.
Published: 1978

46. Inclusive production of charged and neutral sigma hyperons in K−p interactions at 14.3 GeV/c

Author: T.P. Shah, M. Bardadin-Otwinowska, C. Louedec, R.J. Miller, A. Borg, G. Labrosse, B. Drevillon, B. Chaurand, M. Spiro, R.A. Salmeron, J.M. Gago, F. Pierre, R. Barloutaud, J.J. Phelan, K. Paler, and S.N. Tovey
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, Transverse plane, Particle physics, Angular distribution, Transverse momentum, Hyperon, Sigma, Production (computer science), Function (mathematics)
Abstract: Inclusive production of Σ + , Σ − and Σ 0 hyperons in K − p interactions at 14.3 GeV/ c has been studied and compared to Λ production. Cross sections are presented as a function of longitudinal and transverse momenta and compared to the pp → Σ + + anything data.
Published: 1975

47. Backward scattering in and at 8 and 12 GeV/c

Author: J. Dias de Deus, R. Zitoun, M. Pimenta, T. Armstrong, M. Sené, D. Perrin, J.M. Gago, P. Sonderegger, Yu. Galaktianov, Z. Strachman, J. Kahane, R. Sené, J. C. Brient, and M. Baubillier
Subjects: Physics, Nuclear and High Energy Physics, Crystallography, 010308 nuclear & particles physics, Scattering, Quantum electrodynamics, 0103 physical sciences, 010306 general physics, 7. Clean energy, 01 natural sciences, Omega
Abstract: Data on the reactions π − p → p π − , p p → π + π − , K − p → pK and p p → p p at 8 and 12 GeV/c are presented. Our results agree with line reversal symmetry (between π−p → pπ− and p p → π + π − ), Regge pole behaviour for non-exotic reactions ( π − p → p π − , p p → π + π − ), and universal behaviour for exotic reactions ( p p → p p , K − p → pK − ) with dσ/du|u=0 ∼ s−10 excluding the existence of a “glory” mechanism in p p elastic backward scattering in our energy range.
Published: 1987

48. Partial-wave analysis of the low-mass $$\overline {K^0 } \pi ^ + \pi ^ - $$ system produced in the reaction $${\rm K}^ - p \to \overline {K^0 } \pi ^ + \pi ^ - n$$ at 3.95 and 14.3 GeV/c

Author: R.A. Salmeron, K. Paler, J.M. Gago, S. Borenstein, H. Videau, A. Rougé, T.P. Shah, D. Denegri, C. Comber, A. Borg, S.N. Tovey, Y. Pons, B. Drevillon, B. Chaurand, and M. Spiro
Subjects: Nuclear physics, Physics, Pi system, Partial wave analysis, Pi, Analytical chemistry, Charge (physics), Production (computer science), Low Mass, Charge exchange
Abstract: A partial-wave analysis of the$\overline {K^0 } \pi ^ + \pi ^ - $ system in the mass range${\rm M}(\overline {K^0 } \pi ^ + \pi ^ - )< 1.6GeV$ is presented for data at 3.95 and 14.3 GeV/c. We find important contributions from theJP=0− and 1+ states, the unnatural spin-parity states accounting for more than 3/4 of the events at 3.95 GeV/c and for more than half at 14.3 GeV/c. Natural-parity exchange is dominant at both energies. A fit of the cross-sections of several states toσ∝Plab−n givesn about 2.0. The energy dependence of the cross-section for the production of the |2+D1+〉-state is found to be different in charge exchange and charge nonexchange reactions.
Published: 1976

49. New evidence for K∗ (1780) production

Author: B. Chaurand, M. Spiro, R. Barloutaud, B. Drevillon, R.A. Salmeron, J.M. Gago, K. Paler, D. Denegri, S.N. Tovey, C. Comber, T.P. Shah, C. Wohl, and A. Borg
Subjects: Baryon, Physics, Nuclear and High Energy Physics, Antiparticle, Crystallography, Pion, Meson, Branching fraction, Hadron, Mass spectrum, Atomic physics, Nucleon
Abstract: We present the first evidence for K ∗ (1780) production in a non-exchange channel. This comes from a study of the reaction K − p → K° π − p at 14.3 GeV/ c . We also present evidence for K ∗ ° (1780) production in the charge exchange channel K − p → K − π + n. No significant K ππ , K ω and K η decay modes are found. The decay angular distribution, the spin-parity assignments and the production mechanism are discussed. With plausible assumptions on the production mechanism, the J P = 3 − spin-parity is favoured.
Published: 1976

50. Large angle Λ° production in exclusive reactions between 3 and 12 GeV/c

Author: P. Rivet, J.M. Gago, P. Billoir, E. Jeannet, A. Volte, L. Bachman, M. Bogdanski, P. Sonderegger, R. Schwarz, J. M. Brunet, A. de Bellefon, G. Tristram, and D. Perrin
Subjects: Quark, Nuclear physics, Physics, Scattering cross-section, Nuclear and High Energy Physics, Particle physics, Strange quark, Counting rule, Scattering, Transverse momentum, Polarization (waves), Omega
Abstract: The analysis of exclusive neutral strange particle production in the reactions π−p → K°Λ + K°Σ° and pp → ΛΛ + ΛΣ° + c.c. at 3.15, 4.95, 7.9 and 12 GeV/c yielded the differential cross section distributions up to about 90° c.m.s. scattering angle and the Λ-particle polarization at large transverse momentum. Applying a fit to dσ/dt ∞ s−n resulted in n = 8.6 ± 0.9 for the K° Λ + K° Σ° final state which is compatible with the quark counting rule n = 8 for meson-baryon reactions. The average Λ polarization around t = −1.6 (GeV/c)2 was PΛ = 0.79 ± 0.17 at 3.15 GeV/c beam energy.
Published: 1986

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