Expansion by regions with pySecDec

Heinrich, G.; Jahn, S.; Jones, S.P.; Kerner, M.; Langer, F.; Magerya, V.; Põldaru, A.; Schlenk, J.; Villa, E.

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.

Citation

Heinrich, G., Jahn, S., Jones, S., Kerner, M., Langer, F., Magerya, V., …Villa, E. (2022). Expansion by regions with pySecDec. Computer Physics Communications, 273, Article 108267. https://doi.org/10.1016/j.cpc.2021.108267

• Journal Article Type: Article
• Acceptance Date: Dec 14, 2021
• Online Publication Date: Jan 4, 2022
• Publication Date: 2022-04
• Deposit Date: Feb 23, 2022
• Publicly Available Date: Jan 4, 2023
• Journal: Computer Physics Communications
• Print ISSN: 0010-4655
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 273
• Article Number: 108267
• DOI: https://doi.org/10.1016/j.cpc.2021.108267
• Related Public URLs: https://arxiv.org/abs/2108.10807v2