Type II seesaw supersymmetric neutrino model for [theta] sub(13)[not =]0

Using the type II seesaw approach and properties of discrete flavor symmetry group representations, we build a supersymmetric A sub(4) xA sub(3) neutrino model with [theta] sub(13)[not =]0. After describing the basis of this model-which is beyond the minimal supersymmetric Standard Model-with a superfield spectrum containing flavons in A sub(4) xA sub(3) representations, we first generate the tribimaximal neutrino mixing which is known to be in agreement with the mixing angles [theta] sub(12) and [theta] sub(23). Then, we give the scalar potential of the theory where the A3 discrete subsymmetry is used to avoid the so-called sequestering problem. We next study the deviation from the tribimaximal mixing matrix which is produced by perturbing the neutrino mass matrix with a nontrivial A sub(4) singlet. Normal and inverted mass hierarchies are discussed numerically. We also study the breaking of A sub(4) down to Z sub(3) in the charged lepton sector, and use the branching ratio of the decay [tau][arrowright][mu][mu]e-which is allowed by the residual symmetry Z sub(3)-to get estimations on the mass of one of the flavons and the cutoff scale [Lambda] of the model. Key words: Neutrino family symmetry, supersymmetry, deviation from TBM