Global polarization and spin alignment measurements

Abstract

Recent experimental results on global polarization of hyperons and spin alignment of vector mesons in heavy-ion collisions are reviewed, especially in context of the energy dependence and particle species dependence. New results on local polarization along the beam direction at the LHC are discussed with previous measurements at RHIC. Future outlook of these measurements and possible future directions for better understanding of local vorticity field are briefly discussed.

6 pages, 4 figures, Proceedings for the 19th International Conference on Strangeness in Quark Matter (SQM 2021)

References in corpus (5)

• Angular momentum conservation in heavy ion collisions at very high energy
• Collective longitudinal polarization in relativistic heavy-ion collisions at very high energy
• Global $\Lambda$ Polarization in high energy collisions
• Lambda hyperon polarization in relativistic heavy ion collisions from the chiral kinetic approach
• Deconfining Phase Boundary of Rapidly Rotating Hot and Dense Matter and Analysis of Moment of Inertia