Derivative expansions of Euclidean thermal effective actions

1998/08/21 by T. S. Evans, Evans, T. S.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9808382

RevTeX, 4 pages, no figures

arxiv created 1998/08/21 · arxiv updated 2009/11/30

Abstract

I compute the derivative expansion of an effective action at finite temperature using the imaginary time approach. I show that it is a well behaved expansion giving a unique seriers contrary to previous results. This disparity is shown to originate in the choice of thermal Green functions used in the calculations.

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