Tri-Bimaximal Neutrino Mixing from Discrete Symmetry in Extra Dimensions

Abstract

We discuss a particularly symmetric model of neutrino mixings where, with good accuracy, the atmospheric mixing angle theta_{23} is maximal, theta_{13}=0 and the solar angle satisfies sin^2(theta_{12})=1/3 (Harrison-Perkins-Scott (HPS) matrix). The discrete symmetry A_4 is a suitable symmetry group for the realization of this type of model. We construct a model where the HPS matrix is exactly obtained in a first approximation without imposing ad hoc relations among parameters. The crucial issue of the required VEV alignment in the scalar sector is discussed and we present a natural solution of this problem based on a formulation with extra dimensions. We study the corrections from higher dimensionality operators allowed by the symmetries of the model and discuss the conditions on the cut-off scales and the VEVs in order for these corrections to be completely under control. Finally, the observed hierarchy of charged lepton masses is obtained by assuming a larger flavour symmetry. We also show that, under general conditions, a maximal theta_{23} can never arise from an exact flavour symmetry.

24 pages, 1 figure, misprints corrected and references added

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• Trimaximal Mixing and Extended Magic Symmetry in a Model of Neutrino Mass Matrix
• Determining the heavy seesaw neutrino mass matrix from low-energy parameters
• Neutrino Phenomenology and Dark matter in an $A_4$ flavour extended B-L model
• Symmetries of stationary points of the $G$-invariant potential and the framework of the auxiliary group
• Lepton mass and mixing in a simple extension of the Standard Model based on T7 flavor symmetry
• Constraining $A_4$ Leptonic Flavour Model Parameters at Colliders and Beyond
• Anomaly-free ALP from non-Abelian flavor symmetry
• Real Invariant Matrices and Flavour-Symmetric Mixing Variables with Emphasis on Neutrino Oscillations
• Radiative Generation of Non-zero ${\theta }_{13}$ in MSSM with broken $A_4$ Flavor Symmetry
• Flavored Leptogenesis and Neutrino Mass with $A_4$ Symmetry
• Quark-Lepton Complementarity Predictions for ${\theta }_{23}^{pmns}$ and CP Violation
• Gauge anomalies of finite groups
• Type II seesaw supersymmetric neutrino model for ${\theta }_{13}\ne 0$
• Froggatt-Nielsen Meets the SMEFT
• Non$-$zero ${\theta }_{13}$ and ${\delta }_{CP}$ phase with $A_4$ Flavor Symmetry and Deviations to Tri$-$Bi$-$Maximal mixing via $Z_2\times Z_2$ invariant perturbations in the Neutrino sector
• Light flavon signals at electron - photon colliders
• Testing the minimal $S_4$ model of neutrinos with the Dirac and Majorana phases
• Robustness of Neutrino Mass Matrix Predictions
• Texture zeros and hierarchical masses from flavour (mis)alignment
• Neutrino masses and mixing angles in a model with six Higgs triplets and $A_4$ symmetry
• Lepton family symmetries for neutrino masses and mixing
• Bimaximal Neutrino Mixing with Discrete Flavour Symmetries
• Masses and Mixings in a Grand Unified Toy Model
• Non-zero ${\theta }_{13}$, CP-violation and Neutrinoless Double Beta Decay for Neutrino Mixing in the $A_4\times Z_2\times Z_3$ Flavor Symmetry Model
• Lepton Family Symmetry and the Neutrino Mixing Matrix
• Revisiting the Quark-Lepton Complementarity and Triminimal Parametrization of Neutrino Mixing Matrix
• Spontaneously stabilised dark matter from a fermiophobic $U(1{)}^{\prime }$ gauge symmetry
• Nonzero ${\theta }_{13}$ in $SO(3)\to A_4$ lepton models
• Lepton Flavor Violation in Complex SUSY Seesaw Models with Nearly Tribimaximal Mixing
• Probing the Majorana nature of the neutrino with neutrinoless double beta decay
• A dynamical CP source for CKM, PMNS and Leptogenesis
• Modulated bimaximal neutrino mixing
• Neutrino mixing and masses in SO(10) GUTs with hidden sector and flavor symmetries
• Texture zeros in neutrino mass matrix
• Small Neutrino Masses From Structural cancellation In Left-Right Symmetric Model
• An extended 3-3-1 model with two scalar triplets and linear seesaw mechanism
• Predictions for "mu -> e gamma" in SUSY from non trivial Quark-Lepton complementarity
• An $A_5$ inverse seesaw model with perturbed golden ratio mixing
• A Radiative Model of Quark Masses with Binary Tetrahedral Symmetry
• Tribimaximal Neutrino Mixing from A_4 Replication
• Flavor's Delight
• Neutrino Mass Models: Impact of non-zero reactor angle
• Asymmetric tri-bi-maximal mixing and residual symmetries
• Residual Symmetries and Scalar Multiplet Vacuum Alignment in Non-Abelian Flavour Models
• Phenomenology of Trimaximal mixing with one texture equality
• Progress in the understanding of neutrino properties
• Quark-lepton mass relations from modular flavor symmetry
• An A4 model for neutrinos
• The mixing angle as a function of neutrino mass ratio
• A minimal axion model for mass matrices with five texture-zeros
• Cascade Textures and SUSY SO(10) GUT
• Inflation and Leptogenesis in a $U(1)$-enhanced supersymmetric model
• Observable Lepton Flavor Symmetry at LHC
• Deviation from Tri-Bimaximal Neutrino mixing from the Charged Lepton Sector
• Sum Rules for Leptons
• Subcritical hybrid inflation in a generalized superconformal model
• $A_4$ realization of left-right symmetric linear seesaw
• Neutrino Mass Sum Rules
• Z(3) Flavor Symmetry and Possible Implications
• Theoretical and phenomenological consequences of active and sterile neutrino within Beyond Standard Model framework
• Fermion masses and mixings in a $U(1{)}_X$ model based on the $\Sigma (18)$ discrete symmetry
• Effects on sinθ_{12} from perturbation of the neutrino mixing matrix with the partially degenerated neutrino masses
• Recent Models of Neutrino Masses and Mixing
• Expansion of $U_{PMNS}$ and Neutrino mass matrix $M_{\nu }$ in terms of $sin{\theta }_{13}$ for Inverted Hierarchical case
• Higgs-Flavor Groups, Naturalness, and Dark Matter
• Dirac Neutrinos and Dark Matter within a Minimal Discrete Symmetry Model
• Leptogenesis via Varying Weinberg Operator: the Closed-Time-Path Approach
• Revisiting Flavor Model and Leptogenesis
• On the ambiguities in the tri-bimaximal mixing matrix and corresponding charged lepton corrections
• Models for neutrino mass with discrete symmetries
• Neutrino Oscillations in the Three Flavor Paradigm
• Phenomenological Aspects of Possible Vacua of a Neutrino Flavor Model
• Lepton mixing patterns from combinations of elementary correlations
• Fermion masses and mixings and charged lepton flavor violation in a 3-3-1 model with inverse seesaw
• Non-SUSY Lepton Flavor Model with 3HDM
• A Bottom-Up Approach: The Data Driven Flavour Model