Expansion by regions with pySecDec

Heinrich, G.; Jahn, S.; Jones, S. P.; Kerner, M.; Langer, F.; Magerya, V.; Poldaru, A.; Schlenk, J. und Villa, E. (2022): Expansion by regions with pySecDec. In: Computer Physics Communications, Bd. 273, 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 pySecDecis illustrated with several examples. (C) 2021 Elsevier B.V. All rights reserved.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Physik
• Themengebiete: 500 Naturwissenschaften und Mathematik > 530 Physik
• ISSN: 0010-4655
• Sprache: Englisch
• DFG: Gefördert durch die Deutsche Forschungsgemeinschaft (DFG) - 396021762