Electromagnetic and transport properties of QGP within PLSM approach

TL;DR

This paper investigates the electromagnetic and transport properties of quark-gluon plasma using the Polyakov linear-sigma model, showing agreement with lattice QCD and predicting magnetic field effects on viscosity.

Contribution

It applies the PLSM approach to study QGP electromagnetic responses and transport properties, providing new insights and predictions for magnetic field effects.

Findings

Magnetization and magnetic susceptibility increase in QGP phase.

Increasing magnetic field decreases viscosity in hadron phase.

Viscous properties in QGP are unaffected by magnetic field.

Abstract

In order to study the response of the quantum chromodynamic matter to finite electromagnetic fields, we utilize the Polyakov linear - sigma model (PLSM) in mean-field approximation. Due to participants' momentum imbalance and off-center relativistic motion of the spectators' electric charges, localized, short-lived, huge electromagnetic fields are to be generated in the relativistic heavy-ion collisions. We report on various electromagnetic and transport properties of the new-state-of matter; the quark-gluon plasma (QGP) within the QCD-like approach, PLSM. We find an excellent agreement between our PLSM calculations and various recent lattice QCD simulations and notice that the magnetization and the magnetic susceptibility and the relative permeability obviously increase in the QGP phase. We predict that increasing the magnetic field remarkable decreases the viscosity, especially in hadron phase. while in QGP phase, the viscous properties seem not being affected with.