Kite diagram through symmetries of Feynman integrals

Barak Kol*, Subhajit Mazumdar

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


The symmetries of Feynman integrals (SFI) is a method for evaluating Feynman integrals which exposes a novel continuous group associated with the diagram which depends only on its topology and acts on its parameters. Using this method, we study the kite diagram, a two-loop diagram with two external legs, with arbitrary masses and spacetime dimension. Generically, this method reduces a Feynman integral into a line integral over simpler diagrams. We identify a locus in parameter space where the integral further reduces to a mere linear combination of simpler diagrams, thereby maximally generalizing the known massless case.

Original languageAmerican English
Article number045018
JournalPhysical Review D
Issue number4
StatePublished - 15 Feb 2019

Bibliographical note

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© 2019 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the »» Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP .


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