ONELOOP-2.0 - A PROGRAM PACKAGE CALCULATING ONE-LOOP INTEGRALS

We present an improved version of our program package oneloop which - written as a package for MAPLE (Char, Geddes, Gonnet, Leong, Monagan, Watt, MAPLE V Language and Library Reference Manuals) - solves one-loo p Feynman integrals. The package is calculating one-, two- and three-p oint functions both algebraically and numerically to any tensor rank. In addition to the original version, oneloop 2.0 also calculates infra red divergent integrals, Higher powers of propagator terms and the O(e psilon) parts relevant for two-loop calculations are now supported. (C ) 1997 Elsevier Science B.V.