SU(5) x SU(5) unification revisited

dc.creatorEmmanuel-Costa, D
dc.creatorFranco, ET
dc.creatorFelipe, RG
dc.date2011
dc.dateAUG
dc.date2014-07-30T20:06:44Z
dc.date2015-11-26T16:56:21Z
dc.date2014-07-30T20:06:44Z
dc.date2015-11-26T16:56:21Z
dc.date.accessioned2018-03-28T23:43:47Z
dc.date.available2018-03-28T23:43:47Z
dc.identifierJournal Of High Energy Physics. Springer, n. 8, 2011.
dc.identifier1126-6708
dc.identifierWOS:000294901400065
dc.identifier10.1007/JHEP08(2011)017
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/74633
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/74633
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1277356
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionThe idea of grand unification in a minimal supersymmetric SU(5) x SU(5) framework is revisited. It is shown that the unification of gauge couplings into a unique coupling constant can be achieved at a high-energy scale compatible with proton decay constraints. This requires the addition of a minimal particle content at intermediate energy scales. In particular, the introduction of the SU(2)(L) triplets belonging to the (15, 1)+((15) over bar, 1) representations, as well as of the scalar triplet Sigma(3) and octet Sigma(8) in the (24, 1) representation, turns out to be crucial for unification. The masses of these intermediate particles can vary over a wide range, and even lie in the TeV region. In contrast, the exotic vector-like fermions must be heavy enough and have masses above 10(10) GeV. We also show that, if the SU(5) x SU(5) theory is embedded into a heterotic string scenario, it is not possible to achieve gauge coupling unification with gravity at the perturbative string scale.
dc.description8
dc.descriptionFundacao para a Ciencia e a Tecnologia (FCT, Portugal) [PTDC/FIS/098188/2008, CERN/FP/109305/2009, CERN/FP/116328/2010]
dc.descriptionCFTP-FCT UNIT [777]
dc.descriptionPOCTI (FEDER)
dc.descriptionAccion Complementaria Luso-Espanhola FCT
dc.descriptionMICINN [20NSML3700]
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionEU [MRTN-CT-2006-035505]
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundacao para a Ciencia e a Tecnologia (FCT, Portugal) [PTDC/FIS/098188/2008, CERN/FP/109305/2009, CERN/FP/116328/2010]
dc.descriptionCFTP-FCT UNIT [777]
dc.descriptionMICINN [20NSML3700]
dc.descriptionCNPq [150416/2011-3]
dc.descriptionEU [MRTN-CT-2006-035505]
dc.languageen
dc.publisherSpringer
dc.publisherNew York
dc.publisherEUA
dc.relationJournal Of High Energy Physics
dc.relationJ. High Energy Phys.
dc.rightsaberto
dc.rightshttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dc.sourceWeb of Science
dc.subjectSupersymmetric gauge theory
dc.subjectGauge Symmetry
dc.subjectGUT
dc.subjectGrand Unified Theories
dc.subjectHeterotic String Theory
dc.subjectR-parity Conservation
dc.subjectProton-decay
dc.subjectSu(5)xsu(5) Unification
dc.subjectSupersymmetric Guts
dc.subjectGauge
dc.subjectModels
dc.subjectCouplings
dc.subjectStability
dc.titleSU(5) x SU(5) unification revisited
dc.typeArtículos de revistas


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