Nearly Tri-Bimaximal Neutrino Mixing and CP Violation

Abstract

We point out two simple but instructive possibilities to modify the tri-bimaximal neutrino mixing ansatz, such that leptonic CP violation can naturally be incorporated into the resultant scenarios of nearly tri-bimaximal flavor mixing. The consequences of two new ansaetze on solar, atmospheric and reactor neutrino oscillations are analyzed. We also discuss an interesting approach to construct lepton mass matrices under permutation symmetry, from which one may derive another nearly tri-bimaximal neutrino mixing scenario with no intrinsic CP violation in neutrino oscillations.

LaTex 10 pages. Phys. Lett. B (in press)

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• theta_C from the Dihedral Flavor Symmetries D_7 and D_14
• Adjoint SUSY $SU(5)$ Grand Unified Model with $S_4$ Flavor Symmetry
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• Lepton FCNC in Type III Seesaw Model
• Addressing Neutrino Mixing Models with DUNE and T2HK
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• Neutrino Mixing and Leptogenesis in Type-II Seesaw Scenarios with Left-Right Symmetry
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• A Higgs Quadruplet for Type III Seesaw and Implications for $\mu \to e\gamma$ and $\mu -e$ Conversion
• The Impact of Different Parameterizations on the Interpretation of CP Violation in Neutrino Oscillations
• Parametrization of fermion mixing matrices in Kobayashi-Maskawa form
• General Property of Neutrino Mass Matrix and CP Violation
• Perturbations to $\mu -\tau$ Symmetry, Leptogenesis and Lepton Flavour Violation with Type II Seesaw
• Common Origin of Non-zero ${\theta }_{13}$ and Baryon Asymmetry of the Universe in a TeV scale Seesaw Model with $A_4$ Flavour Symmetry
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• On self-complementarity relations of neutrino mixing
• Generalization of Friedberg-Lee Symmetry
• Simple renormalizable flavor symmetry for neutrino oscillations
• Neutrino mass matrices leaving no trace
• A combination of the neutrino trimaximal mixings and mu-tau reflection symmetry in the type-I seesaw model
• A Predictive Ansatz for Neutrino Mixing and Leptogenesis
• CP violation in neutrino mixing with $\delta =-\pi /2$ in $A_4$ Type-II seesaw model
• Phenomenological Meaning of a Neutrino Mass Matrix Related to Up-Quark Masses
• Hybrid Textures of the Right-Handed Majorana Neutrino Mass Matrix
• O(3) Flavor Symmetry and an Empirical Neutrino Mass Matrix
• Interference bands in decays of doubly-charged Higgs bosons to dileptons in the minimal type-II seesaw model at the TeV scale
• Spontaneous R-Parity Violation, $A_4$ Flavor Symmetry and Tribimaximal Mixing
• Threshold effects on renormalization group running of neutrino parameters in the low-scale seesaw model
• Dimension-five effective operators in electro-weak SU(4)xU(1) gauge models
• Intrinsic Deviation from the Tri-bimaximal Neutrino Mixing in a Class of A_4 Flavor Models
• Leptonic CP Violation Induced by Approximately mu-tau Symmetric Seesaw Mechanism
• On Leptonic Unitary Triangles and Boomerangs
• Unified parametrization of quark and lepton mixing matrices in tri-bimaximal pattern
• Unified triminimal parametrizations of quark and lepton mixing matrices
• Constraining Type I Seesaw with $A_4$ Flavor Symmetry From Neutrino Data and Leptogenesis
• Renormalisation Group Corrections to Neutrino Mixing Sum Rules
• Modifications to the neutrino mixing from the mu-tau reflection symmetry
• A study on a minimally broken residual TBM-Klein symmetry with its implications on flavoured leptogenesis and ultra high energy neutrino flux ratios
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• Correlating lepton mixing angles and mixing matrix with Wolfenstein parameters
• Semidirect Product Groups, Vacuum Alignment and Tribimaximal Neutrino Mixing
• Constraints on Flavor Neutrino Masses and sin^2(2theta_{12})>>sin^2(theta_{13}) in Neutrino Oscillations
• Understanding for flavor physics in the lepton sector
• Testing the Bimodal/Schizophrenic Neutrino Hypothesis in Neutrinoless Double Beta Decay and Neutrino Telescopes
• Perturbing exactly tri-bimaximal neutrino mixings with charged lepton mass matrices
• Predicting Leptonic CP phase by considering deviations in charged lepton and neutrino sectors
• A_4 Symmetry and Lepton Masses and Mixing
• Covariant Extremisation of Flavour-Symmetric Jarlskog Invariants and the Neutrino Mixing Matrix
• A model of quarks with Delta (6N^2) family symmetry
• On ${\mathbf{Q}}_6$ flavor symmetry and the breaking of $\mu \leftrightarrow \tau$ symmetry
• Charged Lepton Corrections to Scaling Neutrino Mixing
• Scalar Democracy
• Prediction of leptonic CP phase from perturbatively modified tribimaximal (or bimaximal) mixing
• Yukawaon Model in the Quark Sector and Nearly Tribimaximal Neutrino Mixing
• Tribimaximal Neutrino Mixing and a Relation Between Neutrino- and Charged Lepton-Mass Spectra
• Quasi-degenerate neutrinos and tri-bi-maximal mixing
• Charged lepton correction to tribimaximal lepton mixing and its implications to neutrino phenomenology
• Realizing Tri-bimaximal Mixing in Minimal Seesaw Model with S4 Family Symmetry
• SUSY dark matter and lepton flavor violation
• Minimal modifications to the Tri-Bimaximal neutrino mixing
• Neutrino Mass Matrices with $M_{ee}=0$
• Testing Lepton Flavor Models at ESSnuSB
• Unitarity boomerangs of quark and lepton mixing matrices
• Leptogenesis from the Asymmetric Texture
• Non-zero ${\theta }_{13}$ with Unbroken $\mu -\tau$ Symmetry of the Active Neutrino Mass Matrix in the Presence of a Light Sterile Neutrino
• Towards a realistic model of quarks and leptons, leptonic CP violation and neutrinoless $\beta \beta$-decay
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• Smallness of θ_{13} and the size of the Solar Mass Splitting: Are they related?
• Deviation from Tri-Bimaximal Mixing and Large Reactor Mixing Angle
• On the Quasi-fixed Point in the Running of CP-violating Phases of Majorana Neutrinos
• Flavor Mixing Democracy and Minimal CP Violation
• Type II Seesaw Origin of Non-zero ${\theta }_{13},{\delta }_{CP}$ and Leptogenesis
• Tribimaximal Mixing in the $SU(5)\times {\mathcal{T}}_{13}$ Texture
• Generic Friedberg-Lee Symmetry of Dirac Neutrinos
• Renormalization Group Evolution of Neutrino Parameters in Presence of Seesaw Threshold Effects and Majorana Phases
• Renormalisation Group Corrections to the Littlest Seesaw Model and Maximal Atmospheric Mixing
• Integral solutions to the one-loop renormalization-group equations for lepton flavor mixing parameters and the Jarlskog invariant
• Lepton and Quark Mixing from Stepwise Breaking of Flavor and CP
• Consistency of perturbed Tribimaximal, Bimaximal and Democratic mixing with Neutrino mixing data
• Rare muon and tau decays in A4 Models
• Friedberg-Lee symmetry and tri-bimaximal neutrino mixing in the inverse seesaw mechanism
• Charged lepton contributions to bipair neutrino mixing
• Viability of exact tri-bimaximal, golden-ratio and bimaximal mixing patterns and renormalization-group running effects
• Common Origin of Non-zero ${\theta }_{13}$ and Dark Matter in an $S_4$ Flavour Symmetric Model with Inverse Seesaw
• Maximal CP Violation Hypothesis and a Lepton Mixing Matrix
• Implications of Fermionic Dark Matter on recent neutrino oscillation data
• Effective alignments as building blocks of flavour models
• Lepton mass and mixing in a Neutrino Mass Model based on $S_4$ flavor symmetry
• Parametrization of the Yukawa matrix in the scotogenic model and single-zero textures of the neutrino mass matrix
• Bi-pair Neutrino Mixing
• Patterns in the Fermion Mixing Matrix, a bottom-up approach
• Z_3 Symmetry and Neutrino Mixing in Type II Seesaw
• Flavon-induced connections between lepton flavour mixing and charged lepton flavour violation processes
• Implications of texture zeros for a variant of tribimaximal Mixing
• Unified description of quark and lepton mixing matrices based on a Yukawaon model
• The role of flavon cross couplings in leptonic flavour mixing
• A modified Friedberg-Lee symmetry for the TM1 neutrino mixing
• Broken $S_3$ Neutrinos
• Flavor Transition Mechanisms of Propagating Astrophysical Neutrinos -A Model Independent Parametrization
• Study on perturbation schemes for achieving the real PMNS matrix from various symmetric textures
• Seesaw mirroring between light and heavy Majorana neutrinos with the help of the $S_3^{}$ reflection symmetry
• Deviations from tri-bimaximal mixing
• Comment on Reparametrization Invariance of Quark-Lepton Complementarity
• Perturbative Bottom-up Approach for Neutrino Mass Matrix in Light of Large θ_{13} and Role of Lightest Neutrino Mass
• Finite quantum corrections to the tribimaximal neutrino mixing
• Neutrino Mass Matrix with No Adjustable Parameters
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• Plaquette Invariants and the Flavour Symmetric Description of Quark and Neutrino Mixings
• Naturally perturbed S${}_3$ neutrinos
• Radiative Corrections to the Solar Lepton Mixing Sum Rule
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• Gauge Theory Model of the Neutrino and New Physics Beyond the Standard Model
• New mixing pattern for neutrinos
• Generalized Scaling Ansatz and Minimal Seesaw Mechanism
• LFV and Dipole Moments in Models with A4 Flavour Symmetry
• The (Z_2)^3 symmetry of the non-tri-bimaximal pattern for the neutrino mass matrix
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• Renormalization group evolution induced leptogenesis in the minimal seesaw model with the trimaximal mixing and mu-tau reflection symmetry
• Low-scale Resonant Leptogenesis in $SU(5)$ GUT with ${\mathcal{T}}_{13}$ Family Symmetry
• Deviation from Tribimaximal mixing using $A_4$ flavour model with five extra scalars
• Exponential parameterization of the neutrino mixing matrix - comparative analysis with different data sets and CP violation
• Leptons and Quarks from a Discrete Flavor Symmetry
• Checking Flavour Models at Neutrino Facilities
• Perturbation to TBM mixing and its phenomenological implications
• Geometrical Model for Non-Zero theta_13
• Massive and Massless Neutrinos on Unbalanced Seesaws
• Testable constraint on near-tribimaximal neutrino mixing
• Predicting ${\delta }^{\text{PMNS}}$, ${\theta }_{23}^{\text{PMNS}}$ and fermion mass ratios from flavour GUTs with CSD2
• Connecting Leptonic CP Violation, Lightest Neutrino Mass and Baryon Asymmetry Through Type II Seesaw
• Magic square and Dirac flavor neutrino mass matrix
• Data Driven Flavour Model
• Deviations from Tribimaximal and Golden Ratio mixings under radiative corrections of neutrino masses and mixings
• Testable Deviation from Exact Tribimaximal Mixing
• Form Invariance and Symmetry in the Neutrino Mass Matrix
• Theoretical Overview on the Flavor Issues of Massive Neutrinos
• Determining the heavy seesaw neutrino mass matrix from low-energy parameters
• Simiplified textures of the seesaw model for the trimaximal neutrino mixings
• Confronting the prediction of leptonic Dirac CP-violating phase with experiments
• An Overview of Neutrino Mixing
• Empirical Neutrino Mass Matrix Related to Up-Quark Masses
• Neutrino Mixing by modifying the Yukawa coupling structure of constrained sequential dominance
• Probing annihilations and decays of low-mass galactic dark matter in IceCube DeepCore array: Track events
• Constraining $A_4$ Leptonic Flavour Model Parameters at Colliders and Beyond
• Model independent Analysis of Dirac CP Violating Phase for some well known mixing scenarios
• Leptonic CP Violation and Wolfenstein Parametrization for Lepton Mixing
• Optimal Parametrization of Deviations from Tribimaximal Form of the Neutrino Mass Matrix
• Lepton mass and mixing in a simple extension of the Standard Model based on T7 flavor symmetry
• Fermion mass hierarchy and lepton flavor violation using $CP$ symmetry
• (Z_2)^3 Symmetry of the Tripartite Model
• Nonzero ${\theta }_{13}$ and Neutrino Masses from Modified Neutrino Mixing Matrix
• Radiative Generation of Non-zero ${\theta }_{13}$ in MSSM with broken $A_4$ Flavor Symmetry
• Knitting neutrino mass textures with or without Tri-Bi maximal mixing
• Fermion Masses and Mixing in General Warped Extra Dimensional Models
• Real Invariant Matrices and Flavour-Symmetric Mixing Variables with Emphasis on Neutrino Oscillations
• CP violation in bipair neutrino mixing
• CP violation in modified bipair neutrino mixing and leptogenesis
• Neutrino masses and mixing angles in a model with six Higgs triplets and $A_4$ symmetry
• Renormalization Group Running of Lepton Mixing Parameters in See-Saw Models with $S_4$ Flavor Symmetry
• Bimaximal Neutrino Mixing with Discrete Flavour Symmetries
• Revisiting the Quark-Lepton Complementarity and Triminimal Parametrization of Neutrino Mixing Matrix
• New Origin of a Bilinear Mass Matrix Form
• Fermion masses and neutrino mixing in an U(1)_H flavor symmetry model with hierarchical radiative generation for light charged fermion masses
• Fully Constrained Majorana Neutrino Mass Matrices Using $\Sigma (72\times 3)$
• Testing the minimal $S_4$ model of neutrinos with the Dirac and Majorana phases
• Lepton and quark mixing patterns with generalized CP transformations
• Yukawaon Model with U(3)$\times$O(3) Family Symmetries
• Lepton Flavor Violation in Complex SUSY Seesaw Models with Nearly Tribimaximal Mixing
• A dynamical CP source for CKM, PMNS and Leptogenesis
• $SU(3{)}_F$ Gauge Family Model and New Symmetry Breaking Scale From FCNC Processes
• Quasi-degenerate Neutrino mass models and their significance: A model independent investigation
• Planck Scale Origin of Non-zero ${\theta }_{13}$ and Super-WIMP Dark Matter
• A translational flavor symmetry in the mass terms of Dirac and Majorana fermions
• Electric Dipole Moments of Charged Leptons from Their Majorana-type Yukawa Couplings
• Lepton-number-violating decays of singly-charged Higgs bosons in the minimal type-(I+II) seesaw model at the TeV scale
• Neutrino Masses and Lepton-flavor-violating $\tau$ Decays in the Supersymmetric Left-right Model
• A Possible Hermitian Neutrino Mixing Ansatz
• Neutrino masses and mixing from hierarchy and symmetry
• Small Neutrino Masses From Structural cancellation In Left-Right Symmetric Model
• Phenomenology of Trimaximal mixing with one texture equality
• The U(1) symmetry of the non-tribimaximal pattern in the degenerate mass spectrum case of the neutrino mass matrix
• SO(3) Gauge Symmetry and Nearly Tri-bimaximal Neutrino Mixing
• Phases of Flavor Neutrino Masses and CP Violation
• Particular textures of the minimal seesaw model
• A Systematic Analysis of Perturbations for Hexagonal Mixing Matrix
• Neutrino mass and grand unification of flavor
• Tribimaximal Neutrino Mixing from A_4 Replication
• Possibility of observing Leptonic CP violation with perturbed Democratic mixing patterns
• Discrete symmetries and neutrino masses
• Examination of pairs in neutrino mixing matrix
• Can Massless and Light Yukawaons be Harmless?
• A new texture of neutrino mass matrix with three constraints
• Simple parametrization of neutrino mixing matrix
• Corrections to Tribimaximal Mixing from Nondegenerate Phases
• Magic square and three-zero textures for Dirac neutrinos
• Renormalization group running triggered tri-resonant leptogenesis within neutrino flavor-symmetry models
• A Nearest-neighbor Expansion of Lepton Flavor Mixing in Powers of the $\mu$-$\tau$ Permutation Symmetry Breaking Effect
• Predicting Neutrino Mixing Angles Using Group Presentations
• Flavour anomalies meet flavour symmetry
• Generating CP violation from a modified Fridberg-Lee model
• How can CP violation in the neutrino sector be large in a $2\leftrightarrow 3$ symmetric model?
• Revamped Bi-Large neutrino mixing with Gatto-Sartori-Tonin like relation
• SU(5)-Compatible Yukawaon Model
• Sum Rules for Leptons
• Investigation of a kind of neutrino mass matrix
• The small mixing angle ${\theta }_{13}$ and the lepton asymmetry
• Note about the implementation of finite symmetries in the lepton sector
• Rescuing leptogenesis in inverse seesaw models with the help of non-Abelian flavor symmetries
• Is magic texture for Majorana neutrino immanent in Dirac nature?
• The hidden symmetries in the PMNS matrix and the light sterile neutrino(s)
• Effects on sinθ_{12} from perturbation of the neutrino mixing matrix with the partially degenerated neutrino masses
• An analytical treatment of the neutrino masses and mixings
• Minimal seesaw mechanism
• Modified TM2 for Reproducing All Best-Fit Values of Neutrino Mixing Angles
• Standard and Non-Standard Aspects of Neutrino Physics
• Non-zero θ_13 in models for hierarchical neutrino mass spectrum
• Z(3) Flavor Symmetry and Possible Implications
• New Parametrization of Neutrino Mixing Matrix
• Note about lepton masses and mixings in two Ansatze
• Connecting Tribimaximal and Bitrimaximal Mixings
• A discrete anatomy of the neutrino mass matrix
• Lepton flavor violation in minimal flavor violation extensions of the seesaw
• On the ambiguities in the tri-bimaximal mixing matrix and corresponding charged lepton corrections
• Non-zero ${\theta }_{13}$ and leptonic CP phase with $A_4$ Symmetry
• CKM matrix and flavor symmetries
• A radiative Type-II seesaw model with broken Symmetry Ansatz
• Revisiting Flavor Model and Leptogenesis
• Non-SUSY Lepton Flavor Model with 3HDM