Deconfinement and chiral restoration in nonlocal SU(3) chiral quark models

TL;DR

This paper investigates how nonlocal SU(3) chiral quark models with wave function renormalization describe deconfinement and chiral restoration transitions at finite temperature, comparing results with lattice QCD data.

Contribution

It introduces a detailed analysis of deconfinement and chiral restoration in nonlocal SU(3) models with various form factors and Polyakov loop potentials, grounded in meson phenomenology.

Findings

Consistent description of deconfinement and chiral transitions with lattice data

Impact of different nonlocal form factors on thermodynamical quantities

Effect of Polyakov loop potentials on phase transition characteristics

Abstract

We study the features of nonlocal SU(3) chiral quark models with wave function renormalization. Model parameters are determined from meson phenomenology, considering different nonlocal form factor shapes. In this context we analyze the characteristics of the deconfinement and chiral restoration transitions at finite temperature, introducing the couplings of fermions to the Polyakov loop. We analyze the results obtained for various thermodynamical quantities considering different Polyakov loop potentials and nonlocal form factors, in comparison with data obtained from lattice QCD calculations.