Type II seesaw supersymmetric neutrino model forθ13≠0

Abstract

Using the type II seesaw approach and properties of discrete flavor symmetry group representations, we build a supersymmetric A 4 × A 3 neutrino model with θ 13 = 0.After describing the basis of this model-which is beyond the minimal supersymmetric Standard Model-with a superfield spectrum containing flavons in A 4 × A 3 representations, we first generate the tribimaximal neutrino mixing which is known to be in agreement with the mixing angles θ 12 and θ 23 . Then, we give the scalar potential of the theory where the A 3 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 4 singlet. Normal and inverted mass hierarchies are discussed numerically. We also study the breaking of A 4 down to Z 3 in the charged lepton sector, and use the branching ratio of the decay τ → µµe-which is allowed by the residual symmetry Z 3 -to get estimations on the mass of one of the flavons and the cutoff scale Λ of the model.

Hybrid seesaw neutrino model in SUSY SU(5)×A4

“…, are also used to host the matter and Higgs content of the SUSY SU(5)× A 4 proposal. For general properties on A 4 group representations and their characters, see [25,26]. This paper is organized as follows.…”

“…The discrete A 4 possesses two generators S, T and four irreducible representations that can be labeled by their characters as 1 ð1;1Þ , 1 ð1;ωÞ , 1 ð1;ω 2 Þ , and 3 ð−1;0Þ . These four representations, which are related to the A 4 group order by the formula 1 [25,26]. This paper is organized as follows.…”

Trimaximal mixing with one texture zero from type II seesaw and $Δ(54)$ family symmetry

“…(2.1) 4. See Refs [20,21]. for more details on the diagonalization of the neutrino mass matrix up to order O(ε 2 ).…”

Trimaximal Mixing with One Texture Zero from Type II Seesaw and ∆(54) Family Symmetry

“…(2.2) 3. See Refs [20,21]. for more details on the diagonalization of the neutrino mass matrix up to order O(ε 2 ).…”