Application of the Worldline Path Integral Method to the Calculation of Inverse Mass Expansions

Abstract

Higher order coefficients of the inverse mass expansion of one-loop effective actions are obtained from a one-dimensional path integral representation. For the case of a massive scalar loop in the background of both a scalar potential and a (non Abelian) gauge field explicit results to $O(T^5)$ in the proper time parameter are presented.

6 pages, LaTeX. Talk given at 5th International Workshop on Software Engineering and Artificial Intelligence for High Energy and Nuclear Physics (AIHENP96), Lausanne (Switzerland), 2-6 September 1996