Tri-bimaximal Mixing from Cascades

Abstract

We study fermion mass matrices of the cascade form which are compatible with the tri-bimaximal lepton mixing and generation mass hierarchy. The flat-cascade lepton matrices imply a parameter-independent relation among the mixing angles and mass eigenvalues. The relation has several indications that the atmospheric neutrino mixing angle is close to maximal and the other two angles have a correlation independently of neutrino mass eigenvalues. We also discuss phenomenological aspects of the cascade matrices; flavor-violating rare decays of charged leptons, thermal leptogenesis, and leptonic CP violation. Possible dynamical origins of the cascades are illustrated based on flavor symmetry and in higher-dimensional theory.

26 pages

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Cited by in corpus (24)

• Lepton Flavour Violation in Models with A4 Flavour Symmetry
• Lepton Flavour Violation in a Supersymmetric Model with A4 Flavour Symmetry
• Deriving Models for keV sterile Neutrino Dark Matter with the Froggatt-Nielsen mechanism
• Neutrino masses and tribimaximal mixing in the minimal renormalizable supersymmetric SU(5) grand unified model with A4 flavor symmetry
• Flavor Symmetry Breaking and Vacuum Alignment on Orbifolds
• Predictions via large theta13 from cascades
• Perturbative generation of theta_{13} from tribimaximal neutrino mixing
• Deviations from Tri-Bimaximality and Quark-Lepton Complementarity
• Neutrino Mixing Angles in Sequential Dominance to NLO and NNLO
• Perturbations to $\mu -\tau$ Symmetry, Leptogenesis and Lepton Flavour Violation with Type II Seesaw
• Tri-Bimaximal Mixing from Twisted Friedberg-Lee Symmetry
• Theory of the Neutrino Mass
• Smallness of θ_{13} and the size of the Solar Mass Splitting: Are they related?
• GIMPs from Extra Dimensions
• Hierarchical majorana neutrinos from democratic mass matrices
• Analysis of right-handed Majorana neutrino mass in an $SU(4)\times SU(2{)}_L\times SU(2{)}_R$ Pati--Salam model with democratic texture
• Quark Masses and Mixings with Hierarchical Friedberg-Lee Symmetry
• Generating CP violation from a modified Fridberg-Lee model
• Universal Mass Matrix and Leptonic ${\theta }_{13}$ Angle
• The special Two zeros texture based on $A_4$ symmetry and perturbation method
• Double Froggatt--Nielsen Mechanism
• A general formula by $LD{L}^T$ decomposition for the type-I seesaw mechanism
• Lopsided texture compatible with thermal leptogenesis in partially composite Pati--Salam unification
• Conditions of naturalness and fine-tunings for type-I seesaw mechanism with four-zero texture