Quasi-real photon production in thermal QCD

Details Quasi-real photon production in thermal QCD Quasi-real photon production in thermal QCD

1998-09-14

arxiv.org/abs/hep-ph/9809380v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

Revtex, postscript figures included with epsf, 9 pages

Scientific paper

In this proceedings, I consider two-loop contributions to real photon production in thermal QCD. If the photon is strictly massless, strong collinear divergences appear in this calculation. These singularities are regularized by the quark thermal mass of order $gT$, which generates powers of $1/g$, so that the corresponding terms are strongly enhanced with respect to naive expectations of their order of magnitude.

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