Multiloop calculations with implicit regularization in massless theories

dc.creatorDias, E. W.
dc.creatorScarpelli, A. P. Baeta
dc.creatorBrito, L. C. T.
dc.creatorFargnoli, H. G.
dc.date2020-07-16T18:14:59Z
dc.date2020-07-16T18:14:59Z
dc.date2010-06
dc.date.accessioned2023-09-28T20:00:03Z
dc.date.available2023-09-28T20:00:03Z
dc.identifierDIAS, E. W. et al. Multiloop calculations with implicit regularization in massless theories. Brazilian Journal of Physics, São Paulo, v. 40, n. 2, p. 228-234, jun. 2010.
dc.identifierhttp://repositorio.ufla.br/jspui/handle/1/42006
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9042029
dc.descriptionWe establish a systematic way to calculate multiloop amplitudes of infrared safe massless models with Implicit Regularization (IR), with a direct cancelation of the fictitious mass introduced by the procedure. The ultraviolet content of such amplitudes have a simple structure and its separation permits the identification of all the potential symmetry violating terms, the surface terms. Moreover, we develop a technique for the calculation of an important kind of finite multiloop integral which seems particularly convenient to use Feynman parametrization. Finally, we discuss the Implicit Regularization of infrared divergent amplitudes, showing with an example how it can be dealt with an analogous procedure in the coordinate space.
dc.formatapplication/pdf
dc.languageen
dc.publisherSociedade Brasileira de Física
dc.rightsacesso aberto
dc.rightshttp://creativecommons.org/licenses/by-nc/4.0/
dc.sourceBrazilian Journal of Physics
dc.subjectRegularization
dc.subjectRenormalization
dc.subjectMultiloop calculations
dc.subjectImplicit Regularization (IR)
dc.subjectRegularização
dc.subjectRenormalização
dc.subjectCálculo multiloop
dc.subjectRegularização implícita (RI)
dc.titleMultiloop calculations with implicit regularization in massless theories
dc.typeArtigo


Este ítem pertenece a la siguiente institución