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CHARGED-PARTICLE MULTIPLICITY DISTRIBUTIONS IN RESTRICTED RAPIDITY INTERVALS IN Z0 HADRONIC DECAYS

Authors :
Abreu, P Adam, W Adami, F Adye, T Akesson, T and Alekseev, GD Allen, P Almehed, S Alted, F Alvsvaag, SJ and Amaldi, U Anassontzis, E Antilogus, P Apel, WD and Asman, B Augustin, JE Augustinus, A Baillon, P Bambade, P Barao, F Barbiellini, G Bardin, DY Baroncelli, A and Barring, O Bartl, W Battaglia, M Bates, MJ Baubillier, M and Becks, KH Beeston, CJ Begalli, M Beiliere, P and Belokopytov, Y Beltran, P Benedic, D Benlloch, JM and Berggren, M Bertrand, D Biagi, S Bianchi, F Bibby, JH and Bilenky, MS Billoir, P Bjarne, J Bloch, D Blyth, S and Bogolubov, PN Bolognese, T Bonapart, M Bonesini, M and Booth, PSL Boratav, M Borgeaud, P Borner, H Bosio, C and Botner, O Bouquet, B Bozzo, M Braibant, S Branchini, P and Brand, KD Brenner, RA Bricman, C Brown, RCA Brummer, N Brunet, JM Bugge, L Buran, T Burmeister, H and Buytaert, JAMA Caccia, M Calvi, M Rozas, AJC Campagne, JE Campion, A Camporesi, T Canale, V Cao, F Carroll, L Caso, C Castelli, E Gimenez, MVC Cattai, A and Cavallo, FR Cerrito, L Chapkin, M Charpentier, P and Checchia, P Chelkov, GA Chevalier, L Chliapnikov, P and Chorowicz, V Cirio, R Clara, MP Collins, P Contreras, JL and Contri, R Cosme, G Couchot, F Crawley, HB Crennell, D Crosetti, G Crosland, N Crozon, M Maestro, JC and Czellar, S Dagoret, S Dahl-Jensen, E Dalmagne, B Dam, M and Damgaard, G Darbo, G Daubie, E Dauncey, PD and Davenport, M David, P Angelis, AD DeBeer, M DeBoeck, H and DeBoer, W DeClercq, C Laso, MDMD DeGroot, N De La Vaissiere, C DeLotto, B Defoix, C Delikaris, D Delorme, S Delpierre, P Demaria, N Demin, A Derkaoui, J and DiCiaccio, L Dijkstra, H Djama, F Dolbeau, J and Donszelmann, M Doroba, K Dracos, M Drees, J Dris, M and Dulinski, W Dzehlyadin, R Eek, LO Eerola, PAM Ekelof, T and Ekspong, G Peisert, AE Engel, JP Fassouliotis, D and Alonso, MF Ferrer, A Filippas, TA Firestone, A Foeth, H and Fokitis, E Folegati, P Fontanelli, F Forsbach, H and Franek, B Fransson, KE Frenkiel, P Fries, DC Frodesen, AG Fruhwirth, R Fulda-Quenzer, F Furnival, K Furstenau, H Fuster, J Gago, JM Galeazzi, G Gamba, D Garcia, C and Garcia, J Gasparini, U Gavillet, P Gazis, EN Gerber, JP Giacomelli, P Glitza, KW Gokieli, R Golovatyuk, VM and Cadenas, JJGY Goobar, A Gopal, G Gorski, M Gracco, V and Grant, A Grard, F Graziani, E Gros, MH Grosdidier, G and Grossetete, B Guy, J Hahn, F Hahn, M Haider, S and Hajduk, Z Hakansson, A Hallgren, A Hamacher, K De Monchenault, GH Harris, FJ Heck, BW Herbst, I Hernandez, JJ Herquet, P Herr, H Hietanen, I Higon, E Hilke, HJ and Hodgson, SD Hofmokl, T Holmes, R Holmgren, SO and Holthuizen, D Honore, PF Hooper, JE Houlden, M Hrubec, J and Hulth, PO Hultqvist, K Husson, D Hyams, BD Ioannou, P Isenhower, D Iversen, PS Jackson, JN Jalocha, P and Jarlskog, G Jarry, P Jean-Marie, B Johansson, EK and Johnson, D Jonker, M Jonsson, L Jullot, P Kalkanis, G and Kalmus, G Kantardjian, G Kapusta, F Kapusta, P and Katsanevas, S Katsoufis, EC Keranen, R Kesteman, J and Khomenko, BA Khovanski, NN King, B Kjaer, NJ Klein, H and Klempt, W Klovning, A Kluit, P Koehne, JH Koene, B and Kokkinias, P Kopf, M Koratzinos, M Korcyl, K and Korytov, AV Korzen, B Kostukhin, V Kourkoumelis, C and Kreuzberger, T Krolikowski, J Kruener-Marquis, U Krupinski, W Kucewicz, W Kurvinen, K Lambropoulos, C Lamsa, JW and Lanceri, L Lapin, V Laugier, JP Lauhakangas, R Leder, G and Ledroit, F Lemonne, J Lenzen, G Lepeltier, V and Letessier-Selvon, A Liko, D Lieb, E Lillethun, E and Lindgren, J Lipniacka, A Lippi, I Llosa, R Loerstad, B and Lokajicek, M Loken, JG Aguera, MAL Lopez-Fernandez, A and Los, M Loukas, D Lounis, A Lonzano, JJ Lucock, R and Lutz, P Lyons, L Maehlum, G Maillard, J Maltezos, A and Maltezos, S Mandl, F Marco, J Margoni, M Marin, JC and Markou, A Mathis, L Matorras, F Matteuzzi, C Matthiae, G and Mazzucato, M McCubbin, M McKay, R McNulty, R and Menichetti, E Meola, G Meroni, C Meyer, WT Michelotto, M and Mitaroff, WA Mitselmakher, GV Mjoernmark, U Moa, T and Moeller, R Moenig, K Monge, MR Morettini, P Mueller, H and Muller, H Murray, WJ Myatt, G Naraghi, F Nau-Korzen, U Navarria, FL Negri, P Nielsen, BS Nijjhar, B and Nikolaenko, V Obraztsov, V Olshevski, AG Orava, R and Ostankow, A Ouraou, A Pain, R Palka, H Papadopoulou, T and Pape, L Passeri, A Pegoraro, M Perevozchikov, V and Pernicka, M Perrotta, A Pierre, F Pimenta, M Pingot, O and Pinsent, A Pol, ME Polok, G Poropat, P Privitera, P and Pullia, A Pyyhtia, J Radojicic, D Ragazzi, S Range, WH Ratoff, PN Read, AL Redaelli, NG Regler, M Reid, D Renton, PB Resvanis, LK Richard, F Richardson, M and Ridky, J Rinaudo, G Roditi, I Romero, A Roncagliolo, I and Ronchese, P Ronnqvist, C Rosenberg, EI Rossi, U and Rosso, E Roudeau, P Rovelli, T Ruckstuhl, W Ruhlmann, V and Ruiz, A Rybicki, K Saarikko, H Sacquin, Y Salt, J and Sanchez, E Sanchez, J Sannino, M Schaeffer, M and Schneider, H Scuri, F Segar, AM Sekulin, R Sessa, M and Sette, G Seufert, R Shellard, RC Siegrist, P Simonetti, S Simonetto, F Sissakian, AN Skaali, TB Skjevling, G and Smadja, G Smith, GR Smirnov, N Sosnowski, R Spassoff, TS and Spiriti, E Squarcia, S Staeck, H Stanescu, C and Stavropoulos, G Stichelbaut, F Stocchi, A Strauss, J and Strub, R Stubenrauch, CJ Szczekowski, M Szeptycka, M and Szymanski, P Tabarelli, T Tavernier, S Theodosiou, G and Tilquin, A Timmermans, J Timoveev, VG Tkatchev, LG and Todorov, T Toet, DZ Tomaradze Tortora, L Trainor, MT and Treille, D Trevisan, U Trischuk, W Tristam, G Troncon, C and Tsirou, A Tsyganov, EN Turala, M Turchetta, R and Turluer, ML Tuuva, T Tyapkin, IA Tyndel, M Tzamarias, S and Ueberschaer, S Ullaland, O Uvarov, VA Valenti, G and Ferrer, JAV Van Apeldoorn, GW Van Dam, P Van Doninck, WK and Van Eijndhoven, N Vander Velde, C Varela, J Vaz, P and Vegni, G Velasco, J Ventura, L Venus, W Verbeure, F and Vertogradov, LS Vibert, L Vilanova, D Vishnevsky, N and Viasov, EV Vodopyanov, AS Vollmer, M Volponi, S and Voulgaris, G Voutilainen, M Vrba, V Wahlen, H Walck, C and Waldner, F Wayne, M Weilhammer, P Werner, J and Wetherell, AM Wickens, JH Wikne, J Wilkinson, GR and Williams, WSC Winter, M Wormald, D Wormser, G Woschnagg, K Yamdagni, N Yepes, P Zaitsev, A Zalewska, A and Zalewski, P Zevgolatakos, E Zhang, G Zimin, NI Zito, M and Zitoun, R Funchal, RZ Zumerle, G Zuniga, J DELPHI Collaboration
Source :
ResearcherID

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.

Details

Database :
OpenAIRE
Journal :
ResearcherID
Accession number :
edsair.dedup.wf.001..ea1f5f0558f7991323af82080a232f08