A new method for computing one-loop integrals
Description
Abstract We present a new program package for calculating one-loop Feynman integrals, based on a new method avoiding Feynman parametrization and the contraction due to Passarino and Veltman. The package is calculating one-, two- and three-point functions both algebraically and numerically to all tensor cases. This program is written as a package for Maple. An additional Mathematica version is planned later. Title of program: ONELOOP.MA Catalogue Id: ACVW_v1_0 Nature of problem The theoretical determination of cross sections in particle processes requires the calculation of radiative corrections. The most important contribution comes from the level of one-loop Feynman diagrams which arise from the model under consideration, usually the standard model of elementary particles. Versions of this program held in the CPC repository in Mendeley Data ACVW_v1_0; ONELOOP.MA; 10.1016/0010-4655(94)00112-F ACVW_v2_0; oneloop.ma, version 2.0; 10.1016/S0010-4655(97)00098-2 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)