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.
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页数：3
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