A_4 Symmetry and Lepton Masses and Mixing

Abstract

Stimulated by Ma's idea which explains the tribimaximal neutrino mixing by assuming an A_4 flavor symmetry, a lepton mass matrix model is investigated. A Frogatt-Nielsen type model is assumed, and the flavor structures of the masses and mixing are caused by the VEVs of SU(2)_L-singlet scalars ϕ_i^u and ϕ_i^d (i=1,2,3), which are assigned to {\bf 3} and ({\bf 1}, {\bf 1}',{\bf 1}'') of A_4, respectively.

13 pages including 1 table, errors in Sec.7 corrected

References in corpus (3)

• S_3 Symmetry and Neutrino Masses and Mixings
• Lepton Family Symmetry and Possible Application to the Koide Mass Formula
• On the Koide-like Relations for the Running Masses of Charged Leptons, Neutrinos and Quarks

Cited by in corpus (7)

• The Unique Horizontal Symmetry of Leptons
• S_4 Flavor Symmetry Embedded into SU(3) and Lepton Masses and Mixing
• Nonzero U_{e3}, CP violation and leptogenesis in a see-saw type softly broken A_4 symmetric model
• Embedding A4 into SU(3)xU(1) flavor symmetry: Large neutrino mixing and fermion mass hierarchy in SO(10) GUT
• Lepton Masses in a Minimal Model with Triplet Higgs Bosons and $S_3$ Flavor Symmetry
• Non-Abelian Discrete Flavor Symmetries
• O(3) Flavor Symmetry and an Empirical Neutrino Mass Matrix