Numerical Computation of Two-loop Box Diagrams with Masses
High Energy Physics - Phenomenology
2015-06-03 v2
Abstract
A new approach is presented to evaluate multi-loop integrals, which appear in the calculation of cross-sections in high-energy physics. It relies on a fully numerical method and is applicable to a wide class of integrals with various mass configurations. As an example, the computation of two-loop planar and non-planar box diagrams is shown. The results are confirmed by comparisons with other techniques, including the reduction method, and by a consistency check using the dispersion relation.
Cite
@article{arxiv.1112.0637,
title = {Numerical Computation of Two-loop Box Diagrams with Masses},
author = {F. Yuasa and E. de Doncker and N. Hamaguchi and T. Ishikawa and K. Kato and Y. Kurihara and J. Fujimoto and Y. Shimizu},
journal= {arXiv preprint arXiv:1112.0637},
year = {2015}
}
Comments
16 pages, 8 figures