Stable One-Dimensional Integral Representations of One-Loop N-Point Functions in the General Massive Case: I - Three Point Functions
High Energy Physics - Phenomenology
2015-06-17 v1
Abstract
In this article we provide representations for the one-loop three point functions in 4 and 6 dimensions in the general case with complex masses. The latter are part of the GOLEM library used for the computation of one-loop multileg amplitudes. These representations are one-dimensional integrals designed to be free of instabilites induced by inverse powers of Gram determinants, therefore suitable for stable numerical implementations.
Cite
@article{arxiv.1310.4397,
title = {Stable One-Dimensional Integral Representations of One-Loop N-Point Functions in the General Massive Case: I - Three Point Functions},
author = {J. Ph. Guillet and E. Pilon and M. Rodgers and M. S. Zidi},
journal= {arXiv preprint arXiv:1310.4397},
year = {2015}
}
Comments
40 pages, 1 figure