ep - p h / 92 05 23 5 v 2 1 8 Ju n 19 93 CERN - TH - 6491 / 92 ENSLAPP - A - 383 / 92 COVARIANT GAUGES AT FINITE TEMPERATURE
نویسنده
چکیده
A prescription is presented for real-time finite-temperature perturbation theory in co-variant 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.
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