Centrality dependence of thermal parameters deduced from hadron multiplicities in Au+Au collisions at √SNN =130 GeV -: art. no. 054901

被引：106

作者：

Cleymans, J ^{[1
]}

Kämpfer, B

Kaneta, M

Wheaton, S

Xu, N

机构：

[1] Univ Cape Town, CERN, Res Ctr, Dept Phys, ZA-7701 Rondebosch, Cape Town, South Africa

[2] Forschungszentrum Rossendorf EV, Inst Kern & Hadronenphys, D-01314 Dresden, Germany

[3] Brookhaven Natl Lab, RIKEN, BNL Res Ctr, Upton, NY 11973 USA

[4] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW C | 2005年 / 71卷 / 05期

关键词：

D O I：

10.1103/PhysRevC.71.054901

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：

We analyze the centrality dependence of thermal parameters deduced from hadron multiplicities in Au+Au collisions at root s(NN) = 130 GeV. Although the chemical freeze-out temperature and chemical potentials are found to be roughly centrality independent, the strangeness saturation factor gamma(S) increases with participant number toward unity, supporting the assumption of equilibrium freeze-out conditions in central collisions.

引用

页数：10

共 51 条

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