Reduction of multi-leg loop integrals
High Energy Physics - Phenomenology
2009-10-31 v2
Abstract
I give an efficient algorithm for the reduction of multi-leg one-loop integrals of rank one. The method combines the basic ideas of the spinor algebra approach with the dual vector approach and is applicable to box integrals or higher point integrals, if at least one external leg is massless. This method does not introduce Gram determinants in the denominator. It completes an algorithm recently given by R. Pittau.
Cite
@article{arxiv.hep-ph/9811365,
title = {Reduction of multi-leg loop integrals},
author = {S. Weinzierl},
journal= {arXiv preprint arXiv:hep-ph/9811365},
year = {2009}
}
Comments
10 pages, 4 figures, uses axodraw.sty, final version, minor changes