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dc.contributor.authorSuzuki, Alfrede T.-
dc.contributor.authorSchmidt, Alexandre G. M.-
dc.identifier.citationJournal of High Energy Physics, v. 1, n. 9, 1997.-
dc.description.abstractNegative dimensional integration method (NDIM) is a technique to deal with D-dimensional Feynman loop integrals. Since most of the physical quantities in perturbative Quantum Field Theory (pQFT) require the ability of solving them, the quicker and easier the method to evaluate them the better. The NDIM is a novel and promising technique, ipso facto requiring that we put it to test in different contexts and situations and compare the results it yields with those that we already know by other well-established methods. It is in this perspective that we consider here the calculation of an on-shell two-loop three point function in a massless theory. Surprisingly this approach provides twelve non-trivial results in terms of double power series. More astonishing than this is the fact that we can show these twelve solutions to be different representations for the same well-known single result obtained via other methods. It really comes to us as a surprise that the solution for the particular integral we are dealing with is twelvefold degenerate.en
dc.subjectRenormalization Regularization and Renormalons-
dc.subjectSpace-Time Symmetries-
dc.titleNegative dimensional integration: Lab testing at two loopsen
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationInst. de Fis. Teórica Universidade Estadual Paulista, R. Pamplona, 145, São Paulo SP, CEP 01405-900-
dc.description.affiliationUnespInst. de Fis. Teórica Universidade Estadual Paulista, R. Pamplona, 145, São Paulo SP, CEP 01405-900-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofJournal of High Energy Physics-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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