CP Phases of Neutrino Mixing in a Supersymmetric B-L Gauge Model with T_7 Lepton Flavor Symmetry

Details CP Phases of Neutrino Mixing in a Supersymmetric B-L Gauge Model with T_7 Lepton Flavor Symmetry CP Phases of Neutrino Mixing in a Supersymmetric B-L Gauge Model with T_7 Lepton Flavor Symmetry

2012-04-12

arxiv.org/abs/1204.2705v3

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 10 figures

Scientific paper

In a recently proposed renormalizable model of neutrino mixing using the non-Abelian discrete symmetry T_7 in the context of a supersymmetric extension of the Standard Model with gauged U(1)_{B-L}, a correlation was obtained between \theta_{13} and \theta_{23} in the case where all parameters are real. Here we consider all parameters to be complex, thus allowing for one Dirac CP phase \delta_{CP} and two Majorana CP phases \alpha_{1,2}. We find a slight modification to this correlation as a function of \delta_{CP}. For a given set of input values of \Delta m^2_{21}, \Delta m^2_{32}, \theta_{12}, and \theta_{13}, we obtain \sin^2 2 \theta_{23} and m_{ee} (the effective Majorana neutrino mass in neutrinoless double beta decay) as functions of \tan \delta_{CP}. We find that the structure of this model always yields small |\tan \delta_{CP}|.

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