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

Abstract

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 $q\bar{q}\to \gamma$. The analysis is based on the light-cone path integral approach to the induced radiation. Our results agree with that by Arnold, Moore and Yaffe obtained using the real-time thermal perturbation theory. It is demonstrated that the solution of the AMY integral equation is nothing but the time-integrated Green's function of the light-cone path integral approach written in the momentum representation.

arXiv comment12 pages, 2 figures

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Cited by in corpus (10)

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• Effect of magnetic field on the photon radiation from quark-gluon plasma in heavy ion collisions
• Anomalous mass dependence of radiative quark energy loss in a finite-size quark-gluon plasma
• Nuclear suppression of light hadrons and single electrons at RHIC and LHC
• Failure of the collinear expansion in calculation of the induced gluon emission
• Updated analysis of jet quenching at RHIC and LHC within the light cone path integral approach
• Effect of electric field of the electrosphere on photon emission from quark stars
• Synchrotron contribution to photon emission from quark-gluon plasma
• Phenomenology of collinear photon emission from quark-gluon plasma in $AA$ collisions