Loop functions in thermal QCD

TL;DR

This paper analyzes divergences in loop functions within thermal QCD, providing perturbative calculations of key quantities like the Polyakov loop and Wilson loops, and examining their renormalization mixing.

Contribution

It offers a detailed perturbative analysis of divergences and renormalization properties of loop functions in thermal QCD, which was not comprehensively addressed before.

Findings

Computed the Polyakov loop and correlator perturbatively

Demonstrated how loop functions mix under renormalization

Clarified divergence structures in thermal QCD loops

Abstract

We discuss divergences of loop functions in thermal QCD and compute perturbatively the Polyakov loop, the Polyakov loop correlator and the cyclic Wilson loop. We show how these functions get mixed under renormalization.