Tribimaximal Neutrino Mixing from a Supersymmetric Model with A_4 Family Symmetry

Details Tribimaximal Neutrino Mixing from a Supersymmetric Model with A_4 Family Symmetry Tribimaximal Neutrino Mixing from a Supersymmetric Model with A_4 Family Symmetry

2005-11-10

arxiv.org/abs/hep-ph/0511133v3

Phys.Rev.D73:057304,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

published version; title changed in journal

Scientific paper

10.1103/PhysRevD.73.057304

In the supersymmetric seesaw model of neutrino masses, augmented by the non-Abelian discrete tetrahedral symmetry A_4, a specific pattern of neutrino mixing is automatically generated if one of the three heavy singlet neutrino superfields acquires a nonzero vacuum expectation value. This pattern turns out to be exactly that of tribimaximal mixing, i.e. sin^2 theta_23 = 1/2, sin^2 theta_12 = 1/3, and sin^2 theta_13 = 0, in good agreement with data.

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