Phys. Rev. D 73, 057304 (2006) [4 pages]Tribimaximal neutrino mixing from a supersymmetric model with A4 family symmetryReceived 10 November 2005; published 29 March 2006 In the supersymmetric seesaw model of neutrino masses, augmented by the non-Abelian discrete tetrahedral symmetry A4, 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. sin2θ23=1/2, sin2θ12=1/3, and sin2θ13=0, in good agreement with data. © 2006 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.73.057304
DOI:
10.1103/PhysRevD.73.057304
PACS:
14.60.Pq, 11.30.Hv
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