热密相对论性费米子气体子系统中的量子重子数涨落

IF 0.9 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

Acta Physica Polonica B Pub Date : 2021-05-04 DOI:10.5506/APhysPolB.53.7-A5

Arpan Das, W. Florkowski, R. Ryblewski, Rajeev Singh

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引用次数: 4

摘要

分析了热密相对论性费米子气体子系统中重子数波动的量子特征。我们发现小系统的波动比统计物理中已知的值明显增加，并且在系统大小趋于零的极限处发散。给出了在重离子碰撞中所期望的热力学参数的广泛范围内的数值结果。它们有助于解释和阐明实验数据。

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Quantum Baryon Number Fluctuations in Subsystems of a Hot and Dense Relativistic Gas of Fermions

Quantum features of the baryon number fluctuations in subsystems of a hot and dense relativistic gas of fermions are analyzed. We find that the fluctuations in small systems are significantly increased compared to their values known from the statistical physics, and diverge in the limit where the system size goes to zero. The numerical results obtained for a broad range of the thermodynamic parameters expected in heavy-ion collisions are presented. They can be helpful to interpret and shed new light on the experimental data.

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来源期刊

Acta Physica Polonica B 物理-物理：综合

CiteScore

1.70

自引率

20.00%

发文量

审稿时长

3-8 weeks

期刊介绍： Acta Physica Polonica B covers the following areas of physics: -General and Mathematical Physics- Particle Physics and Field Theory- Nuclear Physics- Theory of Relativity and Astrophysics- Statistical Physics