Multiplicity fluctuations in Au plus Au collisions at ultrarelativistic energies

被引：12

作者：

Konchakovski, V. P. ^{[1
]}

Gorenstein, M. I.

Bratkovskaya, E. L.

机构：

[1] Bogolyubov Inst Theoret Phys, Kiev, Ukraine

[2] Goethe Univ Frankfurt, Helmholtz Res Sch, D-6000 Frankfurt, Germany

[3] Frankfurt Inst Adv Studies, Frankfurt, Germany

来源：

PHYSICAL REVIEW C | 2007年 / 76卷 / 03期

关键词：

D O I：

10.1103/PhysRevC.76.031901

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 preliminary data of the PHENIX collaboration for the scaled variances of charged hadron multiplicity fluctuations in Au+Au at root s=200 GeV are analyzed within the model of independent sources. We use the Hadron-String-Dynamics (HSD) transport model to calculate the participant number fluctuations and the number of charged hadrons per nucleon participant in different centrality bins. This combined picture leads to a good agreement with the PHENIX data and suggests that the measured multiplicity fluctuations result dominantly from participant number fluctuations. The role of centrality selection and acceptance is discussed separately.

引用

页数：3

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