Four-dimensional differential equations for the leading divergences of dimensionally-regulated loop integrals
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Publication:6158775
DOI10.1007/JHEP03(2023)162arXiv2211.13967OpenAlexW4360614089MaRDI QIDQ6158775
Author name not available (Why is that?)
Publication date: 31 May 2023
Published in: (Search for Journal in Brave)
Abstract: We invent an automated method for computing the divergent part of Feynman integrals in dimensional regularization. Our method exploits simplifications from four-dimensional integration-by-parts identities. Leveraging algorithms from the literature, we show how to find simple differential equations for the divergent part of Feynman integrals. We illustrate the method by an application to heavy quark effective theory at three loops.
Full work available at URL: https://arxiv.org/abs/2211.13967
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