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On the Damping Rate of a Moving Fermion in Hot Gauge Theories

✍ Scribed by Bernard Candelpergher; Thierry Grandou

Publisher: Elsevier Science
Year: 2000
Tongue: English
Weight: 318 KB
Volume: 283
Category: Article
ISSN: 0003-4916
DOI: 10.1006/aphy.2000.6058

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✦ Synopsis

Calculated in quantum electrodynamics (QED) and quantum chromodynamics (QCD) at high temperature, the damping rate of a mass shell moving fermion is known to present an infrared divergence due to unscreened magnetostatic modes. In this article, introducing a hard thermal loops (HTL) perturbative resummation scheme, we show how things are found at variance with respect to the ordinary resummation program results.

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