Multiplicity of charged particles in Pb-Pb collisions at SPS energies

F. Antinori, P. Bacon, A. Badal̀, 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 LibertoR. Divià, 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. Králik, A. Kravčáková, P. Kuijer, V. Lenti, R. Lietava, G. Løvhøiden, V. Manzari, G. Martinská, F. F. Valiev, L. Vinogradov

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

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 dNch/dη 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.

Original languageEnglish
Pages (from-to)321-335
Number of pages15
JournalJournal of Physics G: Nuclear and Particle Physics
Volume31
Issue number5
DOIs
StatePublished - 1 May 2005

Scopus subject areas

  • Nuclear and High Energy Physics

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