# Photon Emission from Quark-Gluon Plasma: Complete Leading Order Results

## TL;DR

This paper calculates the leading order photon emission rate from a hot quark-gluon plasma, including important quantum effects like bremsstrahlung and LPM suppression, providing comprehensive results for high-energy physics applications.

## Contribution

It provides the first complete leading order calculation of photon emission rates from an equilibrated QCD plasma, incorporating all relevant processes and suppression effects.

## Key findings

- Accurate photon emission rates including bremsstrahlung and pair annihilation.
- Inclusion of Landau-Pomeranchuk-Migdal suppression effects.
- Results applicable to both QCD and QED plasmas.

## Abstract

We compute the photon emission rate of an equilibrated, hot QCD plasma at zero chemical potential, to leading order in both alpha_{EM} and the QCD coupling g_s(T). This requires inclusion of near-collinear bremsstrahlung and inelastic pair annihilation contributions, and correct incorporation of Landau-Pomeranchuk-Migdal suppression effects for these processes. Analogous results for a QED plasma are also included.