The strategy of regions for asymptotic expansion of two-loop vertex Feynman diagrams

Details The strategy of regions for asymptotic expansion of two-loop vertex Feynman diagrams The strategy of regions for asymptotic expansion of two-loop vertex Feynman diagrams

1998-12-30

arxiv.org/abs/hep-ph/9812529v1

Theor.Math.Phys. 120 (1999) 870-875; Teor.Mat.Fiz. 120 (1999) 64-71

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, LaTeX with axodraw.sty

Scientific paper

10.1007/BF02557396

General prescriptions for evaluation of coefficients at arbitrary powers and
logarithms in the asymptotic expansion of Feynman diagrams in the Sudakov limit
are discussed and illustrated by two-loop examples. Peculiarities connected
with evaluation of individual terms of the expansion, in particular, the
introduction of auxiliary analytic regularization, are characterized.

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