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dc.contributor.authorDias, A. G.-
dc.contributor.authorPleitez, V-
dc.identifier.citationPhysical Review D. College Pk: American Physical Soc, v. 70, n. 5, 6 p., 2004.-
dc.description.abstractWe show that in an SU(2)circle timesU(1) model with a Dine-Fischler-Srednicki-like invisible axion it is possible to obtain (i) the convergence of the three gauge coupling constants at an energy scale near the Peccei-Quinn scale; (ii) the correct value for sin(2)theta<^>(W)(M-Z); (iii) the stabilization of the proton by the cyclic Z(13)circle timesZ(3) symmetries which also stabilize the axion as a solution to the strong CP problem. Concerning the convergence of the three coupling constants and the prediction of the weak mixing angle at the Z peak, this model is as good as the minimal supersymmetric standard model with mu(SUSY)=M-Z. We also consider the standard model with six and seven Higgs doublets. The main calculations were done in the 1-loop approximation but we briefly consider the 2-loop contributions.en
dc.publisherAmerican Physical Soc-
dc.sourceWeb of Science-
dc.titleGrand unification and proton stability near the Peccei-Quinn scaleen
dc.contributor.institutionUniversidade de São Paulo (USP)-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationUniv São Paulo, Inst Fis, BR-05315970 São Paulo, Brazil-
dc.description.affiliationUniv Estadual Paulista, Inst Fis Teor, BR-01405 São Paulo, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista, Inst Fis Teor, BR-01405 São Paulo, Brazil-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofPhysical Review D-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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