One-loop N-point equivalence among negative-dimensional, Mellin-Barnes and Feynman parametrization approaches to Feynman integrals

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dc.creatorSuzuki, A. T.
dc.creatorSantos, E. S.
dc.creatorSchmidt, A. G. M.
dc.date2003-09-08
dc.date.accessioned2026-07-07T10:48:51Z
dc.date.available2026-07-07T10:48:51Z
dc.descriptionWe show that at one-loop order, negative-dimensional, Mellin-Barnes' (MB) and Feynman parametrization (FP) approaches to Feynman loop integrals calculations are equivalent. Starting with a generating functional, for two and then for $N$-point scalar integrals we show how to reobtain MB results, using negative-dimensional and FP techniques. The $N-$point result is valid for different masses, arbitrary exponents of propagators and dimension.
dc.description11 pages, LaTeX. To be published in J.Phys.A
dc.identifierhttps://arxiv.org/abs/hep-ph/0309080
dc.identifierhttp://arxiv.org/abs/hep-ph/0309080
dc.identifierJ.Phys.A36:11859-11872,2003
dc.identifierdoi:10.1088/0305-4470/36/47/012
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/184025
dc.subjectHigh Energy Physics - Phenomenology
dc.titleOne-loop N-point equivalence among negative-dimensional, Mellin-Barnes and Feynman parametrization approaches to Feynman integrals
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