Golem95: a numerical program to calculate one-loop tensor integrals with up to six external legs

Details Golem95: a numerical program to calculate one-loop tensor integrals with up to six external legs Golem95: a numerical program to calculate one-loop tensor integrals with up to six external legs

2008-10-06

arxiv.org/abs/0810.0992v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

30 pages, 2 figures

Scientific paper

We present a program for the numerical evaluation of form factors entering the calculation of one-loop amplitudes with up to six external legs. The program is written in Fortran95 and performs the reduction to a certain set of basis integrals numerically, using a formalism where inverse Gram determinants can be avoided. It can be used to calculate one-loop amplitudes with massless internal particles in a fast and numerically stable way.

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