Event-by-event fluctuations of the charged particle ratio from nonequilibrium transport theory

被引：119
|
作者：
Bleicher, M [1 ]
Jeon, S [1 ]
Koch, V [1 ]
机构：
[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA
来源：
PHYSICAL REVIEW C | 2000年 / 62卷 / 06期
关键词：
D O I：
10.1103/PhysRevC.62.061902
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 event-by-event fluctuations of the ratio of positively to negatively charged hadrons an predicted within the UrQMD model. Corrections for finite acceptance and finite net charge are derived. These corrections are relevant to compare experimental data and transport model results to previous predictions. The calculated fluctuations at RHIC and SPS energies are shown to be compatible with a hadron gas, thus, deviating by a factor of 3 from the predictions for a thermalized quark-gluon plasma.
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页数：3
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