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arXiv · hep-ph/9509313

Improved hard-thermal-loop effective action for hot QED and QCD

Fritjof Flechsig·Anton K. Rebhan
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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.

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Fritjof Flechsig, Anton K. Rebhan. 1995-09-25. Improved hard-thermal-loop effective action for hot QED and QCD. https://doi.org/10.1016/0550-3213(96)00023-5

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