First Results with a new Method for calculating 2-loop Box-Functions
高能物理 - 唯象学
2011-09-13 v1
摘要
We describe a first attempt to calculate scalar 2-loop box-functions with arbitrary internal masses, applying a novel method proposed in hep-ph/9407234. Four of the eight integrals are accessible to integration by means of the residue theorem, leaving a rational function in the remaining variables. The result of the procedure is a three- or sometimes two-dimensional integral representation over a finite volume that can be further evaluated using numerical methods.
引用
@article{arxiv.hep-ph/9804333,
title = {First Results with a new Method for calculating 2-loop Box-Functions},
author = {R. Kreckel and D. Kreimer and K. Schilcher},
journal= {arXiv preprint arXiv:hep-ph/9804333},
year = {2011}
}
备注
10 pages, LaTeX2e, 11 eps-figures, needs epsfig.sty