Liberation of dynamical quarks at high temperature

TL;DR

This paper investigates the mechanism of quark deconfinement and chiral symmetry restoration at high temperature using a mean-field quark model, highlighting the collective excitations responsible for confinement.

Contribution

It introduces a mean-field quark model that links deconfinement and chiral symmetry restoration at a critical temperature.

Findings

Deconfinement and chiral symmetry restoration occur simultaneously.

Confinement is related to the absence of asymptotic states for dynamical fields.

Collective excitations are key to understanding thermodynamical properties.

Abstract

Confinement of dynamical fields can be attributed to the absence of corresponding asymptotic states. Thermodynamical properties of such system are more appropriately formulated in terms of collective excitations of these fields, if they appear as particles. This mechanism is investigated in the mean-field quark model of confinement and hadronization. In this model, deconfinement and restoration of chiral symmetry happen simultaneously at certain critical temperature.