Quark propagators at finite temperature with the clover action

TL;DR

This paper investigates the behavior of quark propagators at finite temperature using lattice simulations, comparing Wilson and clover actions, and finds notable differences in the mass function across phases.

Contribution

It provides the first detailed comparison of quark propagators with Wilson and clover actions at finite temperature in lattice QCD.

Findings

Mass function differs between confinement and deconfinement phases.

Significant low-momentum differences observed in the mass function.

Results enhance understanding of quark behavior at finite temperature.

Abstract

We study properties of the finite temperature quark propagator by using the SU(3) quenched lattice simulation in the Landau gauge and report numerical results of the standard Wilson quark case as well as the improved clover one. The mass function in the deconfinement phase is different from that of the confinement phase, especially at low momentum regions.