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TMF, 2024 Volume 219, Number 3, Pages 523–530 (Mi tmf10703)

Simplifying the large-mass expansion of Feynman integrals

V. A. Smirnov

Skobeltsyn Institute of Nuclear Physics, Moscow State University, Moscow, Russia

Abstract: We show how the well-known large-mass expansion of Feynman integrals can be simplified to obtain more terms of the expansion in analytic form. Expansion of two-loop four-point Feynman integrals that contribute to the $H \to ggg$ process is used as an example.

Keywords: Feynman integrals, dimensional regularization, large-mass expansion, expansion by regions.

PACS: 10

MSC: 81

Received: 14.02.2024
Revised: 14.02.2024

DOI: 10.4213/tmf10703


 English version:
Theoretical and Mathematical Physics, 2024, 219:3, 986–991

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© Steklov Math. Inst. of RAS, 2024