Soft dilepton production and hard thermal loops

Abstract

The Hard Thermal Loop expansion, is an attractive theory, but it reveals difficulties when one uses it as a perturbative scheme. To illustrate this we use the HTL expansion to calculate the two loop corrections for soft virtual photons. The resulting corrections are of the same order as the 1-loop correction.

Revtex, postscript figures included with epsf, 6 pages. Talk presented at the 5th International Workshop on Thermal Field Theories and their Applications, Regensburg, Germany, August 1998