Mass and chemical asymmetry in QCD matter

TL;DR

This paper investigates how mass and chemical asymmetries affect the phase transition in QCD matter using a low-energy effective model, achieving good agreement with lattice data and exploring dense matter scenarios.

Contribution

It introduces a combined approach using chiral perturbation theory and lattice data to study asymmetries in QCD, providing new insights into phase transition behavior.

Findings

Critical temperature behavior matches lattice results

Mass asymmetry influences deconfinement transition

Analyzes cold, dense QCD matter effects

Abstract

We consider two-flavor asymmetric QCD combined with a low-energy effective model inspired by chiral perturbation theory and lattice data to investigate the effects of masses, isospin and baryon number on the pressure and the deconfinement phase transition. Remarkable agreement with lattice results is found for the critical temperature behavior. Further analyses of the cold, dense case and the influence of quark mass asymmetry are also presented.