Renormalization effects on neutrino masses and mixing in a string-inspired SU(4) X SU(2)_L X SU(2)_R X U(1)_X model

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dc.creatorDent, T.
dc.creatorLeontaris, G. K.
dc.creatorPsallidas, A.
dc.creatorRizos, J.
dc.date2006-03-28
dc.date2006-04-03
dc.date.accessioned2026-07-07T10:29:53Z
dc.date.available2026-07-07T10:29:53Z
dc.descriptionWe discuss renormalization effects on neutrino masses and mixing angles in a supersymmetric string-inspired SU(4) X SU(2)_L X SU(2)_R X U(1)_X model, with matter in fundamental and antisymmetric tensor representations and singlet Higgs fields charged under the anomalous U(1)_X family symmetry. The quark, lepton and neutrino Yukawa matrices are distinguished by different Clebsch-Gordan coefficients. The presence of a second U(1)_X breaking singlet with fractional charge allows a more realistic, hierarchical light neutrino mass spectrum with bi-large mixing. By numerical investigation we find a region in the model parameter space where the neutrino mass-squared differences and mixing angles at low energy are consistent with experimental data.
dc.description9 pages, 7 figures; references added
dc.identifierhttps://arxiv.org/abs/hep-ph/0603228
dc.identifierhttp://arxiv.org/abs/hep-ph/0603228
dc.identifierPhys.Rev.D75:065027,2007
dc.identifierdoi:10.1103/PhysRevD.75.065027
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/177965
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleRenormalization effects on neutrino masses and mixing in a string-inspired SU(4) X SU(2)_L X SU(2)_R X U(1)_X model
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