Centrality dependence of charged-hadron pseudorapidity distributions in PbPb collisions at energies available at the CERN Large Hadron Collider in the relativistic diffusion model

被引：26
作者：
Roehrscheid, David M. [1 ]
Wolschin, Georg [1 ]
机构：
[1] Heidelberg Univ, Inst Theoret Phys, D-69120 Heidelberg, Germany
来源：
PHYSICAL REVIEW C | 2012年 / 86卷 / 02期
关键词：
PARTICLE-PRODUCTION; RAPIDITY SPECTRA; PP COLLISIONS; LHC;
D O I：
10.1103/PhysRevC.86.024902
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The centrality dependence of charged-hadron production in relativistic heavy-ion collisions at CERN Large Hadron Collider (LHC) energies is investigated in a nonequilibrium-statistical relativistic diffusion model (RDM) with three sources. Theoretical pseudorapidity distributions are compared with preliminary PbPb ALICE data at LHC energy of root s(NN) = 2.76 TeV for seven centralities, and a previous RDM prediction for this energy is confronted with the data. Refined predictions for 5.52 TeV PbPb based on RDM parameter extrapolations are presented.
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