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Study of Prompt Photon Production in Hadronic $Z^{0}$ Decays

From a sample of 1.5 million \zqq decays collected by the DELPHI detector during 1991, 1992 and 1993, the production cross section for isolated final state photons is measured and is compared with the {\order} (\ae , \as ) matrix element calculations implemented in the EEPRAD and GNJETS Monte Carlo...

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Detalles Bibliográficos
Autores principales: Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, Allport, P P, Almehed, S, Alvsvaag, S J, Amaldi, Ugo, Amato, S, Andreazza, A, Andrieux, M L, Antilogus, P, Apel, W D, Arnoud, Y, Åsman, J E, Augustin, J E, Augustinus, A, Baillon, Paul, Bambade, P, Barão, F, Barate, R, Barbiellini, Guido, Bardin, Dimitri Yuri, Barker, G J, Baroncelli, A, Bärring, O, Barrio, J A, Bartl, Walter, Bates, M J, Battaglia, Marco, Baubillier, M, Baudot, J, Becks, K H, Begalli, M, Beillière, P, Belokopytov, Yu A, Benvenuti, Alberto C, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, S M, Billoir, P, Bloch, D, Blume, M, Blyth, S, Bocci, V, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P S L, Borisov, G, Bosio, C, Bosworth, S, Botner, O, Bouquet, B, Bourdarios, C, Bowcock, T J V, Bozzo, M, Branchini, P, Brand, K D, Brenke, T, Brenner, R A, Bricman, C, Brillault, L, Brown, R C A, Brückman, P, Brunet, J M, Bugge, L, Buran, T, Burgsmüller, T, Buschmann, P, Buys, A, Caccia, M, Calvi, M, Camacho-Rozas, A J, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carrilho, P, Carroll, L, Caso, Carlo, Castillo-Gimenez, M V, Cattai, A, Cavallo, F R, Cerrito, L, Chabaud, V, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G A, Chierici, R, Chliapnikov, P V, Chochula, P, Chorowicz, V, Cindro, V, Collins, P, Contreras, J L, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Crawley, H B, Crennell, D J, Crosetti, G, Cuevas-Maestro, J, Czellar, S, Dahl-Jensen, Erik, Dahm, J, D'Almagne, B, Dam, M, Damgaard, G, Daum, A, Dauncey, P D, Davenport, Martyn, Da Silva, W, Defoix, C, Della Ricca, G, Delpierre, P A, Demaria, N, De Angelis, A, De Boeck, H, de Boer, Wim, De Brabandere, S, De Clercq, C, La Vaissière, C de, De Lotto, B, De Min, A, De Paula, L S, De Saint-Jean, C, Dijkstra, H, Di Ciaccio, Lucia, Djama, F, Dolbeau, J, Dönszelmann, M, Doroba, K, Dracos, M, Drees, J, Drees, K A, Dris, M, Dufour, Y, Dupont, F, Edsall, D M, Ehret, R, Eigen, G, Ekelöf, T J C, Ekspong, Gösta, Elsing, M, Engel, J P, Ershaidat, N, Erzen, B, Espirito-Santo, M C, Falk, E, Fassouliotis, D, Feindt, Michael, Ferrer, A, Filippas-Tassos, A, Firestone, A, Fischer, P A, Föth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B J, Frenkiel, P, Fries, D E C, Frodesen, A G, Frühwirth, R, Fulda-Quenzer, F, Fuster, J A, Galloni, A, Gamba, D, Gandelman, M, García, C, García, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E N, Gelé, D, Gerber, J P, Gerdyukov, L N, Gibbs, M, Gokieli, R, Golob, B, Gopal, Gian P, Gorn, L, Górski, M, Guz, Yu, Gracco, Valerio, Graziani, E, Grosdidier, G, Gunnarsson, P, Günther, M, Guy, J, Haedinger, U, Hahn, F, Hahn, M, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Hao, W, Harris, F J, Hedberg, V, Henriques, R P, Hernández, J J, Herquet, P, Herr, H, Hessing, T L, Higón, E, Hilke, Hans Jürgen, Hill, T S, Holmgren, S O, Holt, P J, Holthuizen, D J, Houlden, M A, Hrubec, Josef, Huet, K, Hultqvist, K, Ioannou, P, Jackson, J N, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E K, Jönsson, L B, Jönsson, P E, Joram, Christian, Juillot, P, Kaiser, M, Kalmus, George Ernest, Kapusta, F, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E C, Keränen, R, Khomenko, B A, Khovanskii, N N, King, B J, Kjaer, N J, Klein, H, Klovning, A, Kluit, P M, Köhne, J H, Köne, B, Kokkinias, P, Koratzinos, M, Kostyukhin, V, Kourkoumelis, C, Kuznetsov, O, Kramer, P H, Krammer, Manfred, Kreuter, C, Królikowski, J, Kronkvist, I J, Krumshtein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K L, Lacasta, C, Laktineh, I, Lamblot, S, Lamsa, J, Lanceri, L, Lane, D W, Langefeld, P, Lapin, V, Last, I, Laugier, J P, Lauhakangas, R, Leder, Gerhard, Ledroit, F, Lefébure, V, Legan, C K, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, Georg, Lepeltier, V, Lesiak, T, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lörstad, B, Lokajícek, M, Loken, J G, López, J M, López-Fernandez, A, López-Aguera, M A, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J N, Maehlum, G, Maio, A, Malychev, V, Mandl, F, Marco, J, Maréchal, B, Margoni, M, Marin, J C, Mariotti, C, Markou, A, Maron, T, Martínez-Rivero, C, Martínez-Vidal, F, Martí i García, S, Matorras, F, Matteuzzi, C, Matthiae, Giorgio, Mazzucato, M, McCubbin, M L, McKay, R, McNulty, R, Medbo, J, Meroni, C, Meyer, W T, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, Winfried A, Mjörnmark, U, Moa, T, Møller, R, Mönig, K, Monge, M R, Morettini, P, Müller, H, Mundim, L M, Murray, W J, Muryn, B, Myatt, Gerald, Naraghi, F, Navarria, Francesco Luigi, Navas, S, Negri, P, Némécek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B S, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, Ainsley, Oberschulte-Beckmann, W, Obraztsov, V F, Olshevskii, A G, Onofre, A, Orava, Risto, Österberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pagès, P, Palka, H, Papadopoulou, T D, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, Manfred, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H T, Piana, G, Pierre, F, Pimenta, M, Plaszczynski, S, Podobrin, O, Pol, M E, Polok, G, Poropat, P, Pozdnyakov, V, Prest, M, Privitera, P, Pukhaeva, N, Pullia, Antonio, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P N, Read, A L, Reale, M, Rebecchi, P, Redaelli, N G, Reid, D, Renton, P B, Resvanis, L K, Richard, F, Richardson, J, Rídky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, P, Ronjin, V M, Roos, L, Rosenberg, E I, Rosso, E, Roudeau, Patrick, Rovelli, T, Rückstuhl, W, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Yu, Sadovskii, A, Sajot, G, Salt, J, Sánchez, J, Sannino, M, Schneider, H, Schyns, M A E, Sciolla, G, Scuri, F, Sedykh, Yu, Segar, A M, Seitz, A, Sekulin, R L, Shellard, R C, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sissakian, A N, Sitár, B, Skaali, T B, Smadja, G, Smirnov, N, Smirnova, O G, Smith, G R, Sosnowski, R, Souza-Santos, D, Spassoff, Tz, Spiriti, E, Sponholz, P, Squarcia, S, Stanescu, C, Stapnes, Steinar, Stavitski, I, Stepaniak, K, Stichelbaut, F, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli de Fatis, T, Tavernet, J P, Chikilev, O G, Tilquin, A, Timmermans, J, Tkatchev, L G, Todorov, T, Toet, D Z, Tomaradze, A G, Tomé, B, Tortora, L, Tranströmer, G, Treille, D, Trischuk, W, Tristram, G, Trombini, A, Troncon, C, Tsirou, A L, Turluer, M L, Tyapkin, I A, Tyndel, M, Tzamarias, S, Überschär, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, van Apeldoorn, G W, van Dam, P, Van Doninck, W K, Van Eldik, J, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W A, Verbeure, F, Verlato, M, Vertogradov, L S, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A S, Vrba, V, Wahlen, H, Walck, C, Weierstall, M, Weilhammer, Peter, Wetherell, Alan M, Wicke, D, Wickens, J H, Wielers, M, Wilkinson, G R, Williams, W S C, Winter, M, Witek, M, Woschnagg, K, Yip, K, Yushchenko, O P, Zach, F, Zacharatou-Jarlskog, C, Zaitsev, A, Zalewska-Bak, A, Zalewski, Piotr, Zavrtanik, D, Zevgolatakos, E, Zimin, N I, Zito, M, Zontar, D, Zuberi, R, Zucchelli, G C, Zumerle, G
Lenguaje:eng
Publicado: 1995
Materias:
Acceso en línea:https://dx.doi.org/10.1007/s002880050001
http://cds.cern.ch/record/284907
Descripción
Sumario:From a sample of 1.5 million \zqq decays collected by the DELPHI detector during 1991, 1992 and 1993, the production cross section for isolated final state photons is measured and is compared with the {\order} (\ae , \as ) matrix element calculations implemented in the EEPRAD and GNJETS Monte Carlo generators. The observed photon yield is used to derive the electroweak couplings of charge 2/3 (u-type) and charge 1/3 (d-ska, Agnie