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Charged-particle multiplicity and transverse energy measured in32S central interactions at 200 GeV per nucleon
Author(s) -
S. Aoki,
V. Bisi,
A. C. Breslin,
F. Cassol-Brunner,
M.G. Catanesi,
D.H. Davis,
Antonio Di Bartolomeo,
S. Di Liberto,
M.J. Esten,
P. Giubellino,
G. Grella,
K. Hoshino,
M. Kazuno,
M. Kobayashi,
K. Kodama,
S. Lusso,
A. MarzariChiesa,
M. Masera,
F. Meddi,
M. Miyanishi,
M.T. Muciaccia,
S. Nakanishi,
K. Nakazawa,
K. Niu,
K. Niwa,
Marcelo Ayumu Nomura,
G. Poulard,
L. Ramello,
L. Riccati,
G. Romano,
G. De Rosa,
Massimo Sartori,
C. Sgarbi,
H. Shibuya,
S. Simone,
H. Tajima,
D.N. Tovee,
N. Ushida,
T. Virgili
Publication year - 1995
Publication title -
il nuovo cimento a
Language(s) - English
Resource type - Journals
ISSN - 0369-3546
DOI - 10.1007/bf02790320
Subject(s) - pseudorapidity , multiplicity (mathematics) , physics , nuclear physics , transverse plane , charged particle , venus , nucleon , particle physics , heavy ion , observable , event (particle physics) , ion , astrophysics , mathematical analysis , mathematics , structural engineering , quantum mechanics , astrobiology , engineering
Interactions induced by 200 GeV per nucleon 32S ions on heavy targets were selected by the HELIOS calorimeters and studied in nuclear emulsions. Global observables, such as charged particle multiplicity and transverse energy, were determined event-by-event. Multiplicity and transverse energy were measured as a function of the pseudorapidity over the large acceptance of the present experiment (0.6≤η≤5.5). A comparison of the experimental data with those provided by the event generators FRITIOF and VENUS shows remarkable differences both in the target spectator region and in the participant region. An attempt is made to interpret these discrepancies in terms of plausible mechanisms, like baryon-pair production or rescatterin

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