Improved hard-thermal-loop effective action for hot QED and QCD
High Energy Physics - Phenomenology
2009-10-28 v2 High Energy Physics - Theory
Abstract
The conventional results for hard thermal loops, which are the building blocks of resummed perturbation theory in thermal field theories, have collinear singularities when external momenta are light-like. It is shown that by taking into account asymptotic thermal masses these singularities are removed. The thus improved hard thermal loops can be summarized by compact gauge-invariant effective actions, generalizing the ones found by Taylor and Wong, and by Braaten and Pisarski.
Cite
@article{arxiv.hep-ph/9509313,
title = {Improved hard-thermal-loop effective action for hot QED and QCD},
author = {Fritjof Flechsig and Anton K. Rebhan},
journal= {arXiv preprint arXiv:hep-ph/9509313},
year = {2009}
}
Comments
21 pages, LaTeX, requires elsart.sty and epsf.sty, 1 postscript figure, compressed and uuencoded, (new reference [9] added)