Multiplicity of charged particles in Pb-Pb collisions at SPS energies
arXiv:hep-ex/0406004 · doi:10.1088/1742-6596/5/1/006
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 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.
19 pages, 8 figures