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arXiv 1707.04420nucl-thnucl-ex
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横向动量涨落及其相关性

Transverse Momentum Fluctuations and Correlations

Piotr Bozek, Wojciech Broniowski, Sandeep Chatterjee

摘要:

研究了重离子碰撞中发射粒子平均横动量的涨落和关联。平均横动量的涨落与初始源的大小和熵的逐事件涨落有关。流体动力学计算使用的Glauber模型与夸克自由度再现的数据。我们研究了不同快度仓中平均横动量的关联。我们提出了一个可观察的定义,可以直接相关的集体流变量的相关性。

英文摘要:

We study fluctuations and correlations of the average transverse momentum of particles emitted in heavy-ion collisions. Fluctuations of the average transverse momentum are related to event-by-event fluctuations of the size and entropy of the initial source. Hydrodynamic calculations using a Glauber model with quark degrees of freedom reproduce the data. We study correlations of the average transverse momentum in different rapidity bins. We propose a definition of the observable that can be directly related to correlations of the collective flow variables.

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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