Photon and Dilepton Production from Hot Out-Off-Equilibrium Media
Abstract
The electromagnetic emissivity from QCD media away from equilibrium is studied in the framework of closed time path thermal field theory. For the dilepton rate a nonequilibrium mesonic medium is considered applying finite temperature perturbation theory for interactions. The dilepton rate is derived up to the order . For hard photon production a quark gluon plasma is assumed and calculations are performed in leading order in the strong coupling constant. These examples are chosen in order to investigate the role of possible pinch terms in boson and in fermion propagators, respectively. The implications of the results for phenomenology are also discussed.
Cite
@article{arxiv.hep-ph/9711213,
title = {Photon and Dilepton Production from Hot Out-Off-Equilibrium Media},
author = {R. Baier and M. Dirks and K. Redlich},
journal= {arXiv preprint arXiv:hep-ph/9711213},
year = {2011}
}
Comments
16 pages LaTeX, 11 figures using epsfig. To be published in the proceedings of the XXXVII-th Cracow School of Theoretical Physics, Dynamics of Strong Interactions, Zakopane, June 1997