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Minimal anomaly-free chiral fermion sets and gauce coupling unification

2014-12Journal article Restricted access
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dc.contributor.authorCebola, Luís M.
dc.contributor.authorEmmanuel-Costa, D.
dc.contributor.authorFelipe, Ricardo Gonzalez
dc.contributor.authorSimões, C.
dc.date.accessioned2015-08-25T10:37:33Z
dc.date.available2015-08-25T10:37:33Z
dc.date.issued2014-12
dc.description.abstractWe look for minimal chiral sets of fermions beyond the standard model that are anomaly free and, simultaneously, vectorlike particles with respect to color SU(3) and electromagnetic U(1). We then study whether the addition of such particles to the standard model particle content allows for the unification of gauge couplings at a high energy scale, above 5.0 x 10(15) GeV so as to be safely consistent with proton decay bounds. The possibility to have unification at the string scale is also considered. Inspired in grand unified theories, we also search for minimal chiral fermion sets that belong to SU(5) multiplets, restricted to representations up to dimension 50. It is shown that, in various cases, it is possible to achieve gauge unification provided that some of the extra fermions decouple at relatively high intermediate scales.por
dc.identifier.citationCEBOLA, Luís M.; EMMANUEL-COSTA, D.; GONZÁLEZ FELIPE, Ricardo Jorge; SIMÕES, C. – Minimal anomaly-free chiral fermion sets and gauce coupling unification. Physical Review D. ISSN: 1550-7998. Vol. 90, nr. 12 (2014), Art. nr. 125037por
dc.identifier.doi10.1103/PhysRevD.90.125037
dc.identifier.issn1550-7998
dc.identifier.issn1550-2368
dc.identifier.urihttp://hdl.handle.net/10400.21/4984
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherAmer Physical Societypor
dc.relation.ispartofseries125037
dc.subjectGrand Unified Theoriespor
dc.subjectNoncommutative Geometrypor
dc.subjectStandadr Modelpor
dc.subjectRepresentationspor
dc.subjectGenerationspor
dc.subjectLeptonspor
dc.subjectQuarkspor
dc.titleMinimal anomaly-free chiral fermion sets and gauce coupling unificationpor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceUSApor
oaire.citation.issue2por
oaire.citation.titlePhysical Review Dpor
oaire.citation.volume90por
rcaap.rightsclosedAccesspor
rcaap.typearticlepor

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