SISSA Open Science

# A SUSY SU(5)xT' Unified Model of Flavour with large θ_{13}

 dc.contributor.author Meroni, Aurora dc.contributor.author Petcov, Serguey T. dc.contributor.author Spinrath, Martin dc.date.accessioned 2012-05-28T15:06:42Z dc.date.available 2012-05-28T15:06:42Z dc.date.issued 2012-05-23 dc.identifier.uri http://preprints.sissa.it/xmlui/handle/1963/5876 dc.description 31 pages, 7 figures en_US dc.description.abstract We present a SUSY SU(5)xT' unified flavour model with type I see-saw en_US mechanism of neutrino mass generation, which predicts the reactor neutrino angle to be \theta_{13} = 0.14 close to the recent results from the Daya Bay and RENO experiments. The model predicts also values of the solar and atmospheric neutrino mixing angles, which are compatible with the existing data. The T' breaking leads to tri-bimaximal mixing in the neutrino sector, which is perturbed by sizeable corrections from the charged lepton sector. The model exhibits geometrical CP violation, where all complex phases have their origin from the complex Clebsch-Gordan coefficients of T'. The values of the Dirac and Majorana CP violating phases are predicted. For the Dirac phase in the standard parametrisation of the neutrino mixing matrix we get a value close to 90 degrees \delta = \pi/2 - 0.45 \theta^c = 84.3 degrees, \theta^c being the Cabibbo angle. The neutrino mass spectrum can be with normal ordering (2 cases) or inverted ordering. In each case the values of the three light neutrino masses are predicted with relatively small uncertainties, which allows to get also unambiguous predictions for the neutrinoless double beta decay effective Majorana mass. dc.language.iso en en_US dc.publisher SISSA en_US dc.relation.ispartofseries arXiv:1205.5241v1; dc.relation.ispartofseries SISSA;12/2012/EP dc.title A SUSY SU(5)xT' Unified Model of Flavour with large θ_{13} en_US dc.type Preprint en_US dc.contributor.department Elementary Particle Theory en_US dc.miur.area -1 en_US dc.contributor.area Physics en_US
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