Covariant gauges at finite temperature
High Energy Physics - Phenomenology
2009-10-22 v2
Abstract
A prescription is presented for real-time finite-temperature perturbation theory in covariant gauges, in which only the two physical degrees of freedom of the gauge-field propagator acquire thermal parts. The propagators for the unphysical degrees of freedom of the gauge field, and for the Faddeev-Popov ghost field, are independent of temperature. This prescription is applied to the calculation of the one-loop gluon self-energy and the two-loop interaction pressure, and is found to be simpler to use than the conventional one.
Keywords
Cite
@article{arxiv.hep-ph/9205235,
title = {Covariant gauges at finite temperature},
author = {P V Landshoff and A Rebhan},
journal= {arXiv preprint arXiv:hep-ph/9205235},
year = {2009}
}
Comments
11 pages plus pictex figures (the leading-temperature contributions given in sect 3.1 were incomplete) CERN-TH-6491/92, published in Nucl Phys B383 (1992) 607