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

被引：51

作者：

Flechsig, F ^{[1
]}

Rebhan, AK ^{[1
]}

机构：

[1] DESY,THEORY GRP,D-22603 HAMBURG,GERMANY

来源：

NUCLEAR PHYSICS B | 1996年 / 464卷 / 1-2期

关键词：

D O I：

10.1016/0550-3213(96)00023-5

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

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.

引用

页码：279 / 297

页数：19

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