Two-loop three-point diagrams with irreducible numerators

Preprint

22 December 1994

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/9412356

Abstract

We study the problem of calculating two-loop three-point diagrams with irreducible numerators (i.e. numerators which cannot be expressed in terms of the denominators). For the case of massless internal particles and arbitrary (off-shell) external momenta, exact results are obtained in terms of polylogarithms. We also consider the tensor decomposition of two-loop three-point diagrams, and show how it is connected with irreducible numerators.

Keywords

DIAGRAMS WITH IRREDUCIBLE
IRREDUCIBLE NUMERATORS
TENSOR DECOMPOSITION
MASSLESS INTERNAL
EXTERNAL MOMENTA
LOOP THREE POINT
POINT DIAGRAMS
TWO LOOP

All Related Versions

Version 1, 1994-12-22, ArXiv
Published version: Physics Letters B, 348 (3-4), 503.

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