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arXiv · 2607.24950

Beyond leading-logarithm photon production from two-loop diagrams in a hot QCD medium

Sumit·Ritesh Ghosh·Munshi G. Mustafa
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Abstract

We investigate high-energy photon production from a quark-gluon plasma by evaluating the imaginary part of the two-loop photon self-energies in thermal QCD. Working within the imaginary-time formalism, we derive analytical expressions for both the leading-logarithmic and the beyond-leading-logarithmic contributions to the photon production rate. The rates obtained within the thermal field theoretical framework agree with those derived from kinetic theory calculations for the relevant photon-production processes.

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Sumit, Ritesh Ghosh, Munshi G. Mustafa. 2026-07-27. Beyond leading-logarithm photon production from two-loop diagrams in a hot QCD medium. https://arxiv.org/abs/2607.24950

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