Speaker
Description
In non-central collisions, a large orbital angular momentum is deposited into the system, generating vorticity that aligns hyperon spins through spin-vorticity coupling.
A newly collected dataset of Au+Au collisions at $\sqrt{s_\mathrm{NN}}$ = 7.7, 9.2, 11.5, 14.6, 17.3, 19.6, and 27 GeV from the second phase of the RHIC Beam Energy Scan (BES-II), obtained with upgraded detector systems, provides a unique opportunity to measure the global polarization of $\Lambda(\bar{\Lambda})$, $\Xi^{\pm}$ and $\Omega^{\pm}$ hyperons with unprecedented precision at these energies. These results provide new insights into the polarization mechanism and vorticity fields in heavy-ion collisions as well as additional constraints on the properties and dynamics of the hot and dense matter created in these collisions.
