Particle number fluctuations and correlations in nucleus–nucleus collisions
Particle number fluctuations and correlations in nucleus–nucleus collisions
复制标题
DOI：
10.1088/0954-3899/36/12/125106
复制
发表时间：
2009-06
期刊：
影响因子：
--
通讯作者：
V. Konchakovski;M. Hauer;M. Gorenstein;E. Bratkovskaya
中科院分区：
文献类型：
--
作者：
V. Konchakovski;M. Hauer;M. Gorenstein;E. Bratkovskaya
在不同统计系综下的统计强子-共振气体模型和强子弦动力学(HSD)输运方法下，研究了SPS和RHIC能级核-核碰撞中的粒子数涨落和关联.在HSD模型中计算了最中心碰撞事件样本中质子与介子和介子与质子数比的逐个事件的涨落，并与现有的实验数据进行了比较。讨论了实验验收和中心性选择的作用。
Particle number fluctuations and correlations in nucleus–nucleus collisions at SPS and RHIC energies are studied within the statistical hadron-resonance gas model in different statistical ensembles and in the Hadron-String-Dynamics (HSD) transport approach. Event-by-event fluctuations of the proton to pion and kaon to proton number ratios are calculated in the HSD model for samples of the most central collision events and compared with the available experimental data. The role of the experimental acceptance and centrality selection is discussed.