Non-perturbative Suppression of Chiral Vortical Effect in Hot (s)QGP for Hyperons Spin Polarization in Heavy Ion Collisions

TL;DR

This paper demonstrates that non-perturbative QCD interactions significantly suppress the Chiral Vortical Effect in hot quark-gluon plasma, aligning theoretical predictions with experimental hyperon polarization data.

Contribution

It introduces a non-perturbative modification of the CVE in (s)QGP using the Field Correlator Method, providing a quantitative suppression consistent with RHIC-STAR observations.

Findings

Numerical suppression of CVE matches experimental hyperon polarization data.

Non-perturbative interactions like Color-Magnetic confinement reduce chiral current.

Results applicable to temperature and chemical potential ranges relevant for RHIC and ALICE.

Abstract

With the Field Correlator Method (FCM) for QCD, we show that the Chiral Vortical Effect (CVE) in hot (strongly-interacting) Quark-Gluon Plasma ((s)QGP) is modified by non-perturbative interactions: by Color-Magnetic confinement, and by remnant Color-Electric interaction, which is encoded in the Polyakov line. The obtained result demonstrates numerical suppression of CVE comparable to the phenomenological suppression used for numerical simulations of RHIC-STAR data on hyperons spin polarization in non-central heavy ion collision (HIC). The parameters range in the temperature - quark chemical potential plane is expected to cover ALICE and RHIC data. The chiral current is calculated for the rigidly rotating model of (s)QGP in the linear order in angular velocity at the rotation axis with account of non-perturbative interactions.