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

NA57 Collaboration

Research output: Contribution to journalArticle

17 Citations (Scopus)


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.
Original languageEnglish
Pages (from-to)321-335
Number of pages15
JournalJournal of Physics G: Nuclear and Particle Physics
Publication statusPublished - 1 May 2005


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