Global $\Lambda$ polarization in moderately relativistic nuclear collisions

Understand

Predictions for the global polarization of $\Lambda$ 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.