Advancing QCD-based calculations of energy loss

TL;DR

This paper reviews recent progress in Quantum Chromodynamics (QCD) calculations of energy loss in medium, focusing on radiative processes, theoretical uncertainties, and the physics of gluon emissions, aiming to improve data comparison and understanding.

Contribution

It provides an overview of advancements in QCD-based energy loss calculations, emphasizing single- and multi-gluon emission physics and addressing theoretical uncertainties.

Findings

Progress in understanding single-gluon emission in medium

Development of models for multi-gluon emissions

Identification of key theoretical uncertainties

Abstract

We give a brief overview of the basics and current developments of QCD-based calculations of radiative processes in medium. We put an emphasis on the underlying physics concepts and discuss the theoretical uncertainties inherently associated with the fundamental parameters to be extracted from data. An important area of development is the study of the single-gluon emission in medium. Moreover, establishing the correct physical picture of multi-gluon emissions is imperative for comparison with data. We will report on progress made in both directions and discuss perspectives for the future.