Two-loop three-point diagrams with irreducible numerators

Details Two-loop three-point diagrams with irreducible numerators Two-loop three-point diagrams with irreducible numerators

1994-12-22

arxiv.org/abs/hep-ph/9412356v1

Phys.Lett. B348 (1995) 503-512

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, latex, 3 figures, ps-file available at ftp://vsfys1.fi.uib.no/davydychev/bergen94-17.ps

Scientific paper

10.1016/0370-2693(95)00136-9

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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