Event-by-event fluctuations of the charged particle ratio from nonequilibrium transport theory
Event-by-event fluctuations of the charged particle ratio from nonequilibrium transport theory
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DOI：
10.1103/physrevc.62.061902
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发表时间：
2000-06
影响因子：
3.1
通讯作者：
M. Bleicher;S. Jeon;Volker Koch
中科院分区：
文献类型：
--
作者：
M. Bleicher;S. Jeon;Volker Koch
在UrQMD模型中预测了带正负电荷强子比率的逐个事件涨落。导出了有限接受和有限净电荷的修正。这些修正对于比较实验数据和输运模型的结果与以前的预测是相关的。计算的RHIC和SPS能级的涨落与强子气体相容，因此，与热化夸克-胶子等离子体的预测偏差3倍。
The event-by-event fluctuations of the ratio of positively to negatively charged hadrons are 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.