Covariant gauges at finite temperature

Details Covariant gauges at finite temperature Covariant gauges at finite temperature

1992-05-26

arxiv.org/abs/hep-ph/9205235v2

Nucl.Phys. B383 (1992) 607-621; Erratum-ibid. B406 (1993) 517

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages plus pictex figures (the leading-temperature contributions given in sect 3.1 were incomplete) CERN-TH-6491/92, publis

Scientific paper

10.1016/0550-3213(92)90089-T

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.

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