Centrality Dependence of the Charged-Particle Multiplicity Density at Midrapidity in Pb-Pb Collisions at √sNN = 2.76 TeV

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Abstract

The centrality dependence of the charged-particle multiplicity density at midrapidity in Pb-Pb collisions at √sNN = 2.76 TeV is presented. The charged-particle density normalized per participating nucleon pair increases by about a factor of 2 from peripheral (70%–80%) to central (0%–5%) collisions. The centrality dependence is found to be similar to that observed at lower collision energies. The data are compared with models based on different mechanisms for particle production in nuclear collisions.

Journal

  • Physical Review Letters

    Physical Review Letters 106(3), 032301-1-032301-10, 2011-01-20

    American Physical Society

Codes

  • NII Article ID (NAID)
    120006471214
  • NII NACSIS-CAT ID (NCID)
    AA00773679
  • Text Lang
    ENG
  • Article Type
    journal article
  • ISSN
    0031-9007
  • Data Source
    IR 
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