Self-consistent determination of hard modes in hot QCD

TL;DR

This paper develops a self-consistent method to identify the dominant hard modes in hot QCD, emphasizing the importance of damping rates over thermal masses in propagators.

Contribution

It introduces a novel self-consistent approach focusing on damping rates to determine hard modes in hot QCD.

Findings

Damping rates are more influential than thermal masses in propagator behavior.

The method clarifies the role of damping in the dynamics of hot QCD.

Results improve understanding of quasiparticle properties in quark-gluon plasma.

Abstract

We determine self-consistently the hard-quark and hard-gluon modes in hot QCD. The damping-rate part in resummed hard-quark or hard-gluon propagators, rather than the thermal-mass part, plays the dominant role.