Expansion by regions with pySecDec
arXiv:2108.10807 · doi:10.1016/j.cpc.2021.108267
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.
43 pages, 12 figures; replaced by version published in CPC
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