Recent progress on global and local polarization of hyperons in heavy-ion collisions

TL;DR

This paper reviews recent experimental progress on the measurement of global and local hyperon polarization in heavy-ion collisions, highlighting advances in understanding vorticity in quark-gluon plasma and remaining open questions.

Contribution

It provides a comprehensive overview of recent experimental findings on hyperon polarization, emphasizing new insights into the vortical nature of the quark-gluon plasma.

Findings

Observation of hyperon polarization indicating vortical fluid

Advances in measuring local polarization effects

Open questions on polarization mechanisms

Abstract

Since the observation of $\Lambda$ global polarization at RHIC, indicating the most vortical fluid ever observed so far, many experimental and theoretical progresses have been made in understanding of vorticity and polarization phenomena in heavy-ion collisions. But there still exist open questions which are currently being studied. In these proceedings, recent experimental results on global and local polarization of hyperons in heavy-ion collisions are reviewed.