Photon Emission from a Parton Gas at Chemical Non-Equilibrium
High Energy Physics - Phenomenology
2008-11-26 v1 Nuclear Theory
Abstract
We compute the hard photon production rate of a chemically non-equilibrated quark-gluon plasma. We assume that the plasma is already thermally equilibrated, i.~e. describable by a temperature, but with a phase-space distribution that deviates from the Fermi/Bose distribution by a time dependent factor (fugacity). The photon spectrum is obtained by integrating the photon rate over the space-time evolution of the quark-gluon plasma. Some consequences for ultrarelativistic heavy ion collisions are discussed.
Cite
@article{arxiv.hep-ph/9507444,
title = {Photon Emission from a Parton Gas at Chemical Non-Equilibrium},
author = {Christoph T. Traxler and Markus H. Thoma},
journal= {arXiv preprint arXiv:hep-ph/9507444},
year = {2008}
}
Comments
17 pages, uuencoded Postscript file, figures included