Photon production by a quark gluon plasma

Abstract

In this talk, I review the status of the calculation of the photon production rate in a hot quark-gluon plasma. Particular emphasis is given to the discussion of the various length scales of the problem.

Comments: Based on talks given at Quark Matter 2001, January 2001, Stony Brook, USA and at 36th Rencontres de Moriond, March 2001, Les Arcs, France (4 pages LaTeX document, 3 postscript figures)