Global polarization of $\Lambda$ and $\bar{\Lambda }$ is calculated based on the axial vortical effect (AVE). Simulations are performed within the model of the three-fluid dynamics. Equations of state with the deconfinement transition result in a good agreement with STAR data for both $\Lambda$ and $\bar{\Lambda }$ polarization, in particular, with the $\Lambda$-$\bar{\Lambda }$ splitting. Suppression of the gravitational-anomaly contribution required for the data reproduction is in agreement with predictions of the QCD lattice simulations. Predictions for the global polarization in forthcoming experiments at lower collision energies are made. These forthcoming data will provide a critical test for the AVE and thermodynamic mechanisms of the polarization.

中文翻译：

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基于轴向涡旋效应的重离子碰撞中的整体极化

全球两极分化 $\Lambda$ 和 $\stackrel{〜}{\Lambda }$根据轴向涡旋效应（AVE）计算。在三流体动力学模型内进行仿真。解除约束转换的状态方程与STAR数据都很好地吻合$\Lambda$ 和 $\stackrel{〜}{\Lambda }$ 极化，特别是与 $\Lambda$--$\stackrel{〜}{\Lambda }$分裂。数据再现所需的重力异常贡献的抑制与QCD晶格模拟的预测一致。在即将发生的实验中，以较低的碰撞能量预测了整体极化。这些即将到来的数据将为极化的AVE和热力学机制提供关键测试。