Four-dimensional differential equations for the leading divergences of dimensionally-regulated loop integrals
نویسندگان
چکیده
We invent an automated method for computing the divergent part of Feynman integrals in dimensional regularization. Our exploits simplifications from four-dimensional integration-by-parts identities. Leveraging algorithms literature, we show how to find simple differential equations integrals. illustrate by application heavy quark effective theory at three loops.
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2023
ISSN: ['1127-2236', '1126-6708', '1029-8479']
DOI: https://doi.org/10.1007/jhep03(2023)162