MULTIPLICITY OF CHARGED PARTICLES IN PB - PB COLLISIONS AT SPS ENERGIES

Antinori, F.; Bacon, P.; Badala, A.; Barbera, R.; Belogianni, A.; Bhasin, A.; Bloodworth, I. J.; Bombara, M.; Bruno, G. E.; Bull, S. A.; Caliandro, R.; Campbell, M.; Carena, W.; Carrer, N.; Clarke, R. F.; Dainese, A.; De Haas, A. P.; De Rijke, P. C.; Di Bari, D.; Di Liberto, S.; Divia, R.; Elia, D.; Evans, D.; Feofilov, G. A.; Fini, R. A.; Ganoti, P.; Ghidini, B.; Grella, G.; Helstrup, H.; Hetland, K. F.; Holme, A. K.; Jacholkowski, A.; Jones, G. T.; Jovanovic, P.; Jusko, A.; Kamermans, R.; Kinson, J. B.; Knudson, K.; Kolozhvari, A. A.; Kondratiev, V.; Kralik, I.; Kravcakova, A.; Kuijer, P.; Lenti, V.; Lietava, R.; Lovhoiden, G.; Manzari, V.; Martinska, G.; Mazzoni, M. A.; Meddi, F.; Michalon, A.; Morando, Maurizio; Nappi, E.; Navach, F.; Norman, P. I.; Palmeri, A.; Pappalardo, G. S.; Pastircak, B.; Pisut, J.; Pisutova, N.; Platt, R. J.; Posa, F.; Quercigh, E.; Riggi, F.; Rohrich, D.; Romano, G.; Safark, K.; Sandor, L.; Schillings, E.; Segato, Gianfranco; Sene, M.; Sene, R.; Snoeys, W.; Soramel, Francesca; Spyropoulou Stassinaki, M.; Staroba, P.; Toulina, T. A.; Turrisi, R.; Tveter, T. S.; Urban, J.; Valiev, F. F.; Van Den Brink, A.; Van De Ven, P.; Vande Vyvre, P.; Van Eijndhoven, N.; Van Hunen, J.; Vascotto, A.; Vik, T.; Villalobos Baillie, O.; Vinogradov, L.; Virgili, T.; Votruba, M. F.; Vrlakova, J.; Zavada, P.

doi:10.1088/0945-3899/31/5/004

The multiplicity of charged particles in the central rapidity region has been measured by the NA57 experiment in Pb-Pb collisions at the CERN SPS at two beam momenta: 158 A GeV/c and 40 A GeV/c. The value of dN(ch)/d eta at the maximum has been determined and its behaviour as a function of centrality has been studied in the centrality range covered by NA57 (about 50% of the inelastic cross section). The multiplicity increase is compatible with a logarithmic dependence on the centre of mass energy. The results are compared with those from other experiments and with the VENUS and RQMD models.

Titolo:	MULTIPLICITY OF CHARGED PARTICLES IN PB - PB COLLISIONS AT SPS ENERGIES
Autori:	F. ANTINORI P. BACON A. BADALA R. BARBERA A. BELOGIANNI A. BHASIN I. J. BLOODWORTH M. BOMBARA G. E. BRUNO S. A. BULL R. CALIANDRO M. CAMPBELL W. CARENA N. CARRER R. F. CLARKE A. DAINESE A. P. DE HAAS P. C. DE RIJKE D. DI BARI S. DI LIBERTO R. DIVIA D. ELIA D. EVANS G. A. FEOFILOV R. A. FINI P. GANOTI B. GHIDINI G. GRELLA H. HELSTRUP K. F. HETLAND A. K. HOLME A. JACHOLKOWSKI G. T. JONES P. JOVANOVIC A. JUSKO R. KAMERMANS J. B. KINSON K. KNUDSON A. A. KOLOZHVARI V. KONDRATIEV I. KRALIK A. KRAVCAKOVA P. KUIJER V. LENTI R. LIETAVA G. LOVHOIDEN V. MANZARI G. MARTINSKA M. A. MAZZONI F. MEDDI A. MICHALON MORANDO, MAURIZIO E. NAPPI F. NAVACH P. I. NORMAN A. PALMERI G. S. PAPPALARDO B. PASTIRCAK J. PISUT N. PISUTOVA R. J. PLATT F. POSA E. QUERCIGH F. RIGGI D. ROHRICH G. ROMANO K. SAFARK L. SANDOR E. SCHILLINGS SEGATO, GIANFRANCO M. SENE R. SENE W. SNOEYS SORAMEL, FRANCESCA M. SPYROPOULOU STASSINAKI P. STAROBA T. A. TOULINA R. TURRISI T. S. TVETER J. URBAN F. F. VALIEV A. VAN DEN BRINK P. VAN DE VEN P. VANDE VYVRE N. VAN EIJNDHOVEN J. VAN HUNEN A. VASCOTTO T. VIK O. VILLALOBOS BAILLIE L. VINOGRADOV T. VIRGILI M. F. VOTRUBA J. VRLAKOVA P. ZAVADA mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2005
Rivista:	JOURNAL OF PHYSICS. CONFERENCE SERIES
Abstract:	The multiplicity of charged particles in the central rapidity region has been measured by the NA57 experiment in Pb-Pb collisions at the CERN SPS at two beam momenta: 158 A GeV/c and 40 A GeV/c. The value of dN(ch)/d eta at the maximum has been determined and its behaviour as a function of centrality has been studied in the centrality range covered by NA57 (about 50% of the inelastic cross section). The multiplicity increase is compatible with a logarithmic dependence on the centre of mass energy. The results are compared with those from other experiments and with the VENUS and RQMD models.
Handle:	http://hdl.handle.net/11577/131625
Appare nelle tipologie:	01.01 - Articolo in rivista

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