QCD Phase-transition and chemical freezeout in nonzero magnetic field at NICA

TL;DR

This paper investigates how short-lived magnetic fields in high-energy collisions influence the QCD phase transition and chemical freezeout, using a Polyakov linear-sigma model to analyze temperature, density, and magnetic effects at NICA energies.

Contribution

It introduces a systematic analysis of magnetic field effects on QCD phase transitions and chemical freezeout at NICA energies using the Polyakov linear-sigma model.

Findings

Magnetic fields significantly affect the chiral phase transition.

Fluctuations and in-medium modifications can serve as signals of phase transition.

Results contribute to understanding QCD phase structure in magnetic environments.

Abstract

Because of relativistic off-center motion of the charged spectators and the local momentum-imbalance experienced by the participants, a huge magnetic field is likely generated in high-energy collisions. The influence of such short-lived magnetic field on the QCD phase-transition(s) shall be analysed. From Polyakov linear-sigma model, we study the chiral phase-transition and the magnetic response and susceptibility in dependence on temperature, density and magnetic field strength. The systematic measurements of the phase-transition characterizing signals, such as the fluctuations, the dynamical correlations and the in-medium modifications of rho-meson, for instance, in different interacting systems and collision centralities are conjectured to reveal an almost complete description for the QCD phase-structure and the chemical freezeout. We limit the discussion to NICA energies.