PNJL model analysis of the Roberge-Weiss transition endpoint at imaginary chemical potential

TL;DR

This paper uses the PNJL model to analyze the Roberge-Weiss transition endpoint at imaginary chemical potential, exploring how quark mass and Polyakov-loop potential forms influence the transition in a two-flavor setup.

Contribution

It provides a detailed study of the quark-mass dependence of the RW transition endpoint within the PNJL model framework, considering various Polyakov-loop potentials.

Findings

Quark-mass significantly affects the RW endpoint behavior.

Different Polyakov-loop potentials lead to varied transition characteristics.

Results align with lattice QCD observations.

Abstract

Motivated by lattice QCD studies we investigate the RW transition endpoint at imaginary chemical potential in a two-flavor PNJL model. We focus on the quark-mass dependence of the endpoint using different forms of the Polyakov-loop potential.