论文标题

全球$λ$中等相对论核冲突的两极分化

Global $Λ$ polarization in moderately relativistic nuclear collisions

论文作者

Ivanov, Yu. B.

论文摘要

在适度相对论碰撞能量的AU+AU碰撞中的$λ$超子的全局两极化的预测,2.4 $ \ leq \ sqrt {s_ {nn}} \ leq $ 11 gev。这些基于对三流体动力学模型中的全局极化的热力学方法。研究了极化的中心性依赖性。可以预测,在$ \ sqrt {s_ {nn}} \大约$ 3 GEV时,极化达到最大或高原(取决于状态和中心的方程)。发现全局极化会随着差异范围差异的宽度增加而增加。

Predictions for the global polarization of $Λ$ hyperons in Au+Au collisions at moderately relativistic collision energies, 2.4 $\leq\sqrt{s_{NN}}\leq$ 11 GeV, are made. These are based on the thermodynamic approach to the global polarization incorporated into the model of the three-fluid dynamics. Centrality dependence of the polarization is studied. It is predicted that the polarization reaches a maximum or a plateau (depending on the equation of state and centrality) at $\sqrt{s_{NN}}\approx$ 3 GeV. It is found that the global polarization increases with increasing width of the rapidity window around the midrapidity.

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