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arXiv 1702.01368nucl-th
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临界点附近的流体动力学波动和Hanbury Brown-Twiss干涉测量

Hydrodynamic fluctuations near a critical endpoint and Hanbury Brown-Twiss interferometry

Christopher Plumberg, Joseph I. Kapusta

摘要:

在高能核碰撞领域,流体动力学涨落的作用引起了人们极大的兴趣。流体动力学波动可能会对重离子加速器中产生的物质产生重大影响,重离子加速器的轨道在温度与化学势的平面上通过可能的临界终点附近。我们扩展了以前的研究,探讨这些波动的影响Hanbury Brown-Twiss干涉测量相同的强子。通过适当定义的关联函数我们发现当轨迹经过临界端点附近时,涨落显著增加,并且在快度距离$Δy$上呈现阻尼振荡行为,这与初始态涨落不同.

英文摘要:

The field of high energy nuclear collisions has witnessed a surge of interest in the role played by hydrodynamic fluctuations. Hydrodynamic fluctuations may have significant effects on matter created in heavy-ion accelerators whose trajectories in the plane of temperature versus chemical potential pass near a possible critical endpoint. We extend previous studies to explore the impact of these fluctuations on Hanbury Brown-Twiss interferometry of identical hadrons. With an appropriately defined correlation function we find that the fluctuations increase substantially when the trajectory passes near a critical endpoint, and also displays a damped oscillatory behavior in the rapidity distance $Δy$ unlike that originating from initial-state fluctuations.

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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