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arXiv 0906.3229nucl-th
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核-核碰撞中的粒子数涨落和关联

Particle Number Fluctuations and Correlations in Nucleus-Nucleus Collisions

V. P. Konchakovski, M. Hauer, M. I. Gorenstein, E. L. Bratkovskaya

摘要:

在不同统计系综的统计强子共振气体模型和强子弦动力学(HSD)输运方法中,研究了SPS和RHIC能量下核-核碰撞中的粒子数涨落和相关性。在HSD模型中计算了大多数中心碰撞事件的质子与π介子和K介子与质子数比随事件的涨落,并与现有的实验数据进行了比较。实验接受和中心选择的作用进行了讨论。

英文摘要:

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 the samples of most central collision events and compared with the available experimental data. The role of the experimental acceptance and centrality selection is discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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