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arXiv · hep-ph/9412356

Two-loop three-point diagrams with irreducible numerators

Natalia I. Ussyukina·Andrei I. Davydychev
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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.

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Natalia I. Ussyukina, Andrei I. Davydychev. 1994-12-22. Two-loop three-point diagrams with irreducible numerators. https://doi.org/10.1016/0370-2693(95)00136-9

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