Evaluating Two-Loop massive Operator Matrix Elements with Mellin-Barnes Integrals

Abstract

We calculate massive 5-propagator 2-loop integrals for operator matrix elements in the light-cone expansion, using Mellin-Barnes techniques and representations through generalized hypergeometric functions.

Comments: 6 pages, 3 figures, 1 style file, to appear in the Proceedings of "Loops and Legs in Quantum Field Theory 2006", Eisenach, April, 2006