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Production characteristics of K0 and light meson resonances in hadronic decays of the Z0
Authors
P. Abreu Adam, W. Adye, T. Agasi, E. Ajinenko, I. Aleksan, R. Alekseev, G.D. Allport, P.P. Almehed, S. Almeida, F.M.L. Alvsvaag, S.J. Amaldi, U. Andreazza, A. Antilogus, P. Anykeyev, V. Apel, W.-D. Apsimon, R.J. Arnoud, Y. Asman, B. Augustin, J.-E. Augustinus, A. Baillon, P. Bambade, P. Barao, F. Barate, R. Barbiellini, G. Bardin, D.Y. Barker, G.J. Baroncelli, A. Barring, O. Barrio, J.A. Bartl, W. Bates, M.J. Battaglia, M. Baubillier, M. Baudot, J. Becks, K.-H. Begalli, M. Beilliere, P. Beltran, P. Benvenuti, A.C. Berggren, M. Bertrand, D. Bianchi, F. Bigi, M. Bilenky, M.S. Billoir, P. Bjarne, J. Bloch, D. Blocki, J. Blyth, S. Bocci, V. Bogolubov, P.N. Bolognese, T. Bonesini, M. Bonivento, W. Booth, P.S.L. Borisov, G. Bosio, C. Bostjancic, B. Bosworth, S. Botner, O. Boudinov, E. Bouquet, B. Bourdarios, C. Bowcock, T.J.V. Bozzo, M. Braibant, S. Branchini, P. Brand, K.D. Brenner, R.A. Briand, H. Bricman, C. Brillault, L. Brown, R.C.A. Bruckman, P. Brunet, J.-M. Bugge, L. Buran, T. Buys, A. Buytaert, J.A.M.A. Caccia, M. Calvi, M. Camacho Rozas, A.J. Campion, R. Camporesi, T. Canale, V. Cankocak, K. Cao, F. Carena, F. Carrilho, P. Carroll, L. Cases, R. Caso, C. Castillo Gimenez, M.V. Cattai, A. Cavallo, F.R. Cerrito, L. Chabaud, V. Chan, A. Chapkin, M. Charpentier, Ph. Chaussard, L. Chauveau, J. Checchia, P. Chelkov, G.A. Chliapnikov, P. Chorowicz, V. Chrin, J.T.M. Cindro, V. Collins, P. Contreras, J.L. Contri, R. Cortina, E. Cosme, G. Couchot, F. Crawley, H.B. Crennell, D. Crosetti, G. Cuevas Maestro, J. Czellar, S. Dahl-Jensen, E. Dahm, J. Dalmagne, B. Dam, M. Damgaard, G. Daubie, E. Daum, A. Dauncey, P.D. Davenport, M. Davies, J. Da Silva, W. Defoix, C. Delpierre, P. Demaria, N. De Angelis, A. De Boeck, H. De Boer, W. De Brabandere, S. De Clercq, C. De Fez Laso, M.D.M. De La Vaissiere, C. De Lotto, B. De Min, A. De Paula, L. De Saint-Jean, C. Dijkstra, H. Di Ciaccio, L. Djama, F. Dolbeau, J. Donszelmann, M. Doroba, K. Dracos, M. Drees, J. Dris, M. Dufour, Y. Dupont, F. Edsall, D. Ehret, R. Ekelof, T. Ekspong, G. Elsing, M. Engel, J.-P. Ershaidat, N. Espirito Santo, M. Fassouliotis, D. Feindt, M. Ferrer, A. Filippas, T.A. Firestone, A. Foeth, H. Fokitis, E. Fontanelli, F. Formenti, F. Fousset, J.-L. Franek, B. Frenkiel, P. Fries, D.C. Frodesen, A.G. Fruhwirth, R. Fulda-Quenzer, F. Furstenau, H. Fuster, J. Gamba, D. Gandelman, M. Garcia, C. Garcia, J. Gaspar, C. Gasparini, U. Gavillet, Ph. Gazis, E.N. Gele, D. Gerber, J.-P. Giacomelli, P. Gillespie, D. Gokieli, R. Golob, B. Golovatyuk, V.M. Gomez Y Cadenas, J.J. Gopal, G. Gorn, L. Gorski, M. Gracco, V. Grard, F. Graziani, E. Grosdidier, G. Gunnarsson, P. Guy, J. Haedinger, U. Hahn, F. Hahn, M. Hahn, S. Haider, S. Hajduk, Z. Hakansson, A. Hallgren, A. Hamacher, K. Hao, W. Harris, F.J. Hedberg, V. Henriques, R. Hernandez, J.J. Hernando, J.A. Herquet, P. Herr, H. Hessing, T.L. Higon, E. Hilke, H.J. Hill, T.S. Holmgren, S.-O. Holt, P.J. Holthuizen, D. Honore, P.F. Houlden, M. Hrubec, J. Huet, K. Hultqvist, K. Ioannou, P. Iversen, P.-S. Jackson, J.N. Jacobsson, R. Jalocha, P. Jarlskog, G. Jarry, P. Jean-Marie, B. Johansson, E.K. Jonker, M. Jonsson, L. Juillot, P. Kaiser, M. Kalmus, G. Kapusta, F. Karlsson, M. Karvelas, E. Katsanevas, S. Katsoufis, E.C. Keranen, R. Khomenko, B.A. Khovanski, N.N. King, B. Kjaer, N.J. Klein, H. Kovning, A. Kluit, P. Koch-Mehrin, A. Koehne, J.H. Koene, B. Kokkinias, P. Koratzinos, M. Korytov, A.V. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Kramer, P.H. Krammer, M. Kreuter, C. Krolikowski, J. Kronkvist, I. Krupinski, W. Kucewicz, W. Kulka, K. Kurvinen, K. Lacasta, C. Laktineh, I. Lambropoulos, C. Lamsa, J.W. Lanceri, L. Langefeld, P. Lapin, V. Last, I. Laugier, J.-P. Lauhakangas, R. Leder, G. Ledroit, F. Leitner, R. Lemoigne, Y. Lemonne, J. Lenzen, G. Lepeltier, V. Levy, J.M. Lieb, R. Lindner, R. Lipniacka, A. Lippi, I. Loerstad, B. Lokajicek, M. Loken, J.G. Lopez-Fernandez, A. Lopez Aguera, M.A. Los, M. Loukas, D. Lozano, J.J. Lutz, P. Lyons, L. Maehlum, G. Maillard, J. Maio, A. Maltezos, A. Mandl, F. Marco, J. Marechal, B. Margoni, M. Marin, J.-C. Mariotti, C. Markou, A. Maron, T. Marti, S. Martinez-Rivero, C. Martinez-Vidal, F. Matorras, F. Matteuzzi, C. Matthiae, G. Mazzucato, M. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Medbo, J. Meroni, C. Meyer, W.T. Michelotto, M. Migliore, E. Mikulec, I. Mirabito, L. Mitaroff, W.A. Mitselmakher, G.V. Mjoernmark, U. Moa, T. Moeller, R. Moenig, K. Monge, M.R. Morettini, P. Mueller, H. Murray, W.J. Muryn, B. Myatt, G. Naraghi, F. Navarria, F.L. Negri, P. Nemecek, S. Neumann, W. Neumeister, N. Nicolaidou, R. Nielsen, B.S. Niss, P. Nomerotski, A. Normand, A. Novak, M. Obraztsov, V. Olshevski, A.G. Orava, R. Osterberg, K. Ouraou, A. Paganini, P. Paganoni, M. Pain, R. Palka, H. Papadopoulou, Th.D. Pape, L. Parodi, F. Passeri, A. Pegoraro, M. Pennanen, J. Peralta, L. Pernegger, H. Pernicka, M. Perrotta, A. Petridou, C. Petrolini, A. Phillips, H.T. Piana, G. Pierre, F. Pimenta, M. Plaszczynski, S. Podobrin, O. Pol, M.E. Polok, G. Poropat, P. Pozdniakov, V. Prest, M. Privitera, P. Pullia, A. Radojicic, D. Ragazzi, S. Rahmani, H. Ratoff, P.N. Read, A.L. Reale, M. Rebecchi, P. Redaelli, N.G. Regler, M. Reid, D. Renton, P.B. Resvanis, L.K. Richard, F. Richardson, J. Ridky, J. Rinaudo, G. Ripp, I. Romero, A. Roncagliolo, I. Ronchese, P. Roos, L. Rosenberg, E.I. Rosso, E. Roudeau, P. Rovelli, T. Ruckstuhl, W. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sajot, G. Salt, J. Sanchez, J. Sannino, M. Schael, S. Schneider, H. Schyns, M.A.E. Sciolla, G. Scuri, F. Segar, A.M. Seitz, A. Sekulin, R. Sessa, M. Seufert, R. Shellard, R.C. Siccama, I. Siegrist, P. Simonetti, S. Simonetto, F. Sisakian, A.N. Skaali, T.B. Smadja, G. Smirnov, N. Smirnova, O. Smith, G.R. Sosnowski, R. Souza-Santos, D. Spassov, T. Spiriti, E. Squarcia, S. Staeck, H. Stanescu, C. Stapnes, S. Stavitski, I. Stavropoulos, G. Stepaniak, K. Stichelbaut, F. Stocchi, A. Strauss, J. Straver, J. Strub, R. Stugu, B. Szczekowski, M. Szeptycka, M. Tabarelli, T. Tchikilev, O. Theodosiou, G.E. Thome, Z. Tilquin, A. Timmermans, J. Timofeev, V.G. Tkatchev, L.G. Todorov, T. Toet, D.Z. Tomaradze, A. Tome, B. Torassa, E. Tortora, L. Transtromer, G. Treille, D. Trischuk, W. Tristram, G. Troncon, C. Tsirou, A. Tsyganov, E.N. Turluer, M.-L. Tuuva, T. Tyapkin, I.A. Tyndel, M. Tzamarias, S. Ueberschaer, B. Ueberschaer, S. Ullaland, O. Uvarov, V. Valenti, G. Vallazza, E. Valls Ferrer, J.A. Vander Velde, C. Van Apeldoorn, G.W. Van Dam, P. Van Der Heijden, M. Van Doninck, W.K. Van Eldik, J. Vaz, P. Vegni, G. Ventura, L. Venus, W. Verbeure, F. Verlato, M. Vertogradov, L.S. Vilanova, D. Vincent, P. Vitale, L. Vlasov, E. Vodopyanov, A.S. Vollmer, M. Voutilainen, M. Vrba, V. Wahlen, H. Walck, C. Waldner, F. Wehr, A. Weierstall, M. Weilhammer, P. Wetherell, A.M. Wickens, J.H. Wielers, M. Wilkinson, G.R. Williams, W.S.C. Winter, M. Witek, M. Wormser, G. Woschnagg, K. Yip, K. Zach, F. Zaitsev, A. Zalewski, Z. Zalewski, P. Zavrtanik, D. Zevgolatakos, E. Zhigunov, V. Zimin, N.I. Zito, M. Zontar, D. Zuberi, R. Zumerle, G.
Publication date
1 January 1995
Publisher
Abstract
An analysis of inclusive production of K0 and the meson resonances K*±(892), ρ0(770), f0(975) and f2(1270) in hadronic decays of the Z0 is presented, based on about 973,000 multihadronic events collected by the DELPHI detector at LEP during 1991 and 1992. Overall multiplicities have been determined as 1.962±0.060 K0 mesons, 0.712±0.067 K*±(892) and 1.21±0.15ρ0(770) per hadronic Z0 decay. The average multiplicities of f0(975) for scaled momentum, xp, in the range 0.05≤xp≤0.6 and of f2(1270) for 0.05≤xp≤1.0 are 0.098±0.016 and 0.170±0.043 respectively. The f0(975) and ρ0(770)xp-spectra have similar shapes. The f2(1270)/ρ0(770) ratio increases with xp. The average multiplicities and the differential cross sections are compared with the JETSET Parton Shower model. The model with default parameters fails to reproduce the experimental K0 momentum spectrum at low momentum, describes the K*±(892) and ρ0(770)xp-spectrum shapes, but significantly overestimates their production rates. © 1995 Springer-Verlag
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