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

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorUniversidade Federal do Paraná (UFPR)
dc.date.accessioned2014-05-20T14:06:14Z
dc.date.accessioned2022-10-05T14:59:14Z
dc.date.available2014-05-20T14:06:14Z
dc.date.available2022-10-05T14:59:14Z
dc.date.created2014-05-20T14:06:14Z
dc.date.issued2003-11-28
dc.identifierJournal of Physics A-mathematical and General. Bristol: Iop Publishing Ltd, v. 36, n. 47, p. 11859-11871, 2003.
dc.identifier0305-4470
dc.identifierhttp://hdl.handle.net/11449/23250
dc.identifier10.1088/0305-4470/36/47/012
dc.identifierWOS:000188194800014
dc.identifier7511139477883318
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/3896682
dc.description.abstractWe show that at one-loop order, negative-dimensional, Mellin-Barnes (MB) and Feynman parametrization (FP) approaches to Feynman loop integral 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.languageeng
dc.publisherIop Publishing Ltd
dc.relationJournal of Physics A: Mathematical and General
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.titleOne-loop n-point equivalence among negative-dimensional, Mellin-Barnes and Feynman parametrization approaches to Feynman integrals
dc.typeArtigo


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