# Radiative corrections to the jet quenching parameter in dilute and dense media

## TL;DR

This paper investigates radiative corrections to jet quenching in QCD media, highlighting the significance of single scattering processes and double logarithmic contributions in dilute and dense environments.

## Contribution

It extends previous calculations by including single scattering processes and analyzing their impact on momentum broadening with double logarithmic enhancements.

## Key findings

- Double logarithmic contributions are significant in dilute systems with single scattering.
- Different scattering regimes constrain different phase space regions.
- Single scattering dominates in dilute media, affecting radiative correction calculations.

## Abstract

We extend the calculation of radiative corrections to momentum broadening in a QCD medium to include processes where single scattering dominates over multiple soft scatterings. Our analysis focusses on processes that are enhanced by a potentially large double logarithmic contribution. We demonstrate that such double logarithmic contributions emerge in calculations of momentum broadening in dilute systems where only single scattering occurs. We show how the different regimes, multiple versus single scattering, constrain different parts of the phase space.