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

Authors
  • 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.
  • And 74 more
Publication Date
Jan 01, 2005
Source
HAL-IN2P3
Keywords
Language
English
License
Unknown
External links

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/{\it c} and 40 A GeV/{\it 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 increases approximately logarithmically with the centre of mass energy.

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