High temperature color conductivity at next-to-leading log order

TL;DR

This paper calculates the first sub-leading correction to high-temperature non-Abelian color conductivity, enhancing the precision of effective theories and electroweak baryon violation rate calculations.

Contribution

It provides the first next-to-leading log order correction to non-Abelian color conductivity at high temperature.

Findings

First sub-leading correction computed

Improves accuracy of non-perturbative color dynamics models

Refines electroweak baryon number violation rate estimates

Abstract

The non-Abelian analog of electrical conductivity at high temperature has previously been known only at leading logarithmic order: that is, neglecting effects suppressed only by an inverse logarithm of the gauge coupling. We calculate the first sub-leading correction. This has immediate application to improving, to next-to-leading log order, both effective theories of non-perturbative color dynamics, and calculations of the hot electroweak baryon number violation rate.