Expansion by regions with pySecDec
High Energy Physics - Phenomenology
2022-01-27 v2
Abstract
We discuss the technique of expansion by regions from a geometric perspective, and its implementation within pySecDec, a toolbox for the evaluation of dimensionally regulated parameter integrals. The program offers an automated way to perform asymptotic expansions and provides a new mechanism for efficiently evaluating amplitudes, as well as individual integrals. The usage of the new features available within pySecDec is illustrated with several examples.
Cite
@article{arxiv.2108.10807,
title = {Expansion by regions with pySecDec},
author = {G. Heinrich and S. Jahn and S. P. Jones and M. Kerner and F. Langer and V. Magerya and A. Poldaru and J. Schlenk and E. Villa},
journal= {arXiv preprint arXiv:2108.10807},
year = {2022}
}
Comments
43 pages, 12 figures; replaced by version published in CPC