Collinear Photon Emission from the Quark-Gluon Plasma: The Light-Cone Path Integral Formulation

P. Aurenche, B. G. Zakharov

We give a simple physical derivation of the photon emission rate from the weakly coupled quark-gluon plasma connected with the collinear processes $q\to \gamma q$ and $q\bar{q}\to \gamma$. Th…