Tensor reduction of two-loop vacuum diagrams and projectors for expanding three-point functions

Details Tensor reduction of two-loop vacuum diagrams and projectors for expanding three-point functions Tensor reduction of two-loop vacuum diagrams and projectors for expanding three-point functions

1995-11-07

arxiv.org/abs/hep-ph/9511261v1

Nucl.Phys. B465 (1996) 507-520

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, plain latex, no figures

Scientific paper

10.1016/0550-3213(96)00033-8

Explicit general formulae for the tensor reduction of two-loop massive vacuum diagrams are presented. The problem of calculating the corresponding coefficients is shown to be equivalent to the problem of constructing differential operators (projectors) extracting the coefficients of the momentum expansion of massive scalar three-point functions (with any number of loops), so the solution to the latter problem is also given.

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