Two-component source to explain $\Lambda$ and $\bar{\Lambda }$ global polarization in non-central heavy-ion collisions

A. Ayala, E. Cuautle, I. Domínguez +3

The STAR Beam Energy Scan program has found a difference in the global polarization of $\Lambda$s and $\bar{\Lambda }$s produced in $Au+Au$ collisions. This difference is larger for lower center…