$\gamma$-Radiation of thermalized Quark-Gluon-Plasma

Abstract

Long time ago, photon production was proposed as a probe and a thermometer for Quark-Gluon Plasma (QGP). However, only recently has the complete ${\alpha }_s$ order photon spectrum been obtained. In this paper we give a brief review of the problematic as well as discuss the $\mathcal{O}({\alpha }_s)$ result.

Comments: 6 pages, 2 ps figures, Contribution to the Proceedings of "Quark Matter 2002", Nantes, France, 18-24 Jul 2002