Produced charged hadrons in central Pb + Pb collisions at LHC energies in the RDM

Details Produced charged hadrons in central Pb + Pb collisions at LHC energies in the RDM Produced charged hadrons in central Pb + Pb collisions at LHC energies in the RDM

2011-02-16

arxiv.org/abs/1102.3388v2

Phys.Lett.B698:411-415,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 4 figures, 1 table; References updated, misprints corrected

Scientific paper

10.1016/j.physletb.2011.03.035

The energy dependence of charged-hadron production in relativistic heavy-ion collisions is investigated in a nonequilibrium-statistical relativistic diffusion model (RDM) with three sources. Theoretical pseudorapidity distributions are compared with Au + Au data at RHIC energies of sqrt(s_NN) = 0.13 and 0.2 TeV, and computed for Pb + Pb central collisions at LHC energies of 2.76 and 5.52 TeV. The central, nearly equilibrated source arising from gluon-gluon collisions becomes the major origin of particle production at LHC energies. The midrapidity dip is determined by the interplay of the three sources.

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