Polarization in relativistic heavy ion collisions: a theoretical perspective

TL;DR

This paper reviews the theoretical framework for calculating particle polarization in relativistic heavy ion collisions using hydrodynamical models, discussing covariant decomposition and unresolved theoretical issues.

Contribution

It provides a comprehensive overview of the covariant decomposition of the mean spin vector and addresses open theoretical challenges in the field.

Findings

Discussion of covariant decomposition of spin vector

Identification of open theoretical issues

Framework for future research in polarization calculations

Abstract

We review the theoretical framework for the calculation of particle polarization in relativistic heavy ion collisions within the hydrodynamical model. The covariant decomposition of the mean spin vector is presented and open theoretical issues addressed.