Lepton Mass Hierarchy and Neutrino Oscillations

Abstract

Starting from the symmetry of lepton flavor democracy, we propose and discuss a simple pattern for the mass generation and flavor mixing of the charged leptons and neutrinos. The three neutrino masses are nearly degenerate, and the flavor mixing angles can be calculated. The observed deficit of solar and atmospheric neutrinos can be interpreted as a consequence of the near degeneracy and large oscillations of ${\nu }_e$, ${\nu }_{\mu }$ and ${\nu }_{\tau }$ in the vacuum. Our {\it Ansatz} can also accommodate the cosmological requirement for hot dark matter and the current data on neutrinoless $\beta \beta$-decay.

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Cited by in corpus (204)

• Tri-Bimaximal Mixing and the Neutrino Oscillation Data
• Symmetries and Generalisations of Tri-Bimaximal Neutrino Mixing
• Tri-Bimaximal Neutrino Mixing from Discrete Symmetry in Extra Dimensions
• Nearly Tri-Bimaximal Neutrino Mixing and CP Violation
• Mass and Flavor Mixing Schemes of Quarks and Leptons
• Bi-Maximal Mixing of Three Neutrinos
• Neutrino Masses and Mixing: Evidence and Implications
• Permutation Symmetry, Tri-Bimaximal Neutrino Mixing and the S3 Group Characters
• Flavor structures of charged fermions and massive neutrinos
• Bimaximal Neutrino Mixing and Neutrino Mass Matrix
• Models of Neutrino Masses and Mixings
• The Solar Neutrino Puzzle: An Oscillation Solution with Maximal Neutrino Mixing
• Leptonic CP violation
• Large Leptonic Flavor Mixing and the Mass Spectrum of Leptons
• Atmospheric Neutrino Oscillation and a Phenomenological Lepton Mass Matrix
• Neutrino oscillations and signals in beta and 0nu2beta experiments
• A review of mu-tau flavor symmetry in neutrino physics
• A Redetermination of the Neutrino Mass-Squared Difference in Tri-Maximal Mixing with Terrestrial Matter Effects
• $S_{2L}$ permutation symmetry for left-handed $\mu$ and $\tau$ families and neutrino oscillations in an $SU(3{)}_L\times U(1{)}_N$ gauge model
• Progress in the physics of massive neutrinos
• Atmospheric neutrinos at Super-Kamiokande and parametric resonance in neutrino oscillations
• The Simplest Neutrino Mass Matrix
• Tri-bimaximal mixing, discrete family symmetries, and a conjecture connecting the quark and lepton mixing matrices
• Zee Mass Matrix and Bi-Maximal Neutrino Mixing
• Leptogenesis with Almost Degenerate Majorana Neutrinos
• Maximal Neutrino Mixing and Maximal CP Violation
• Atmospheric neutrinos: LMA oscillations, Ue3 induced interference and CP-violation
• Degenerate and Quasi Degenerate Majorana Neutrinos
• A Full Determination of the Neutrino Mass Spectrum from Two-zero Textures of the Neutrino Mass Matrix
• A General Classification of Three-Neutrino Models and U_e3
• Can Neutrino Mixings Arise from the Charged Lepton Sector?
• The Light Quark Sector, CP Violation, and the Unitarity Triangle
• Implications of the KamLAND Measurement on the Lepton Flavor Mixing Matrix and the Neutrino Mass Matrix
• Relatively large theta13 and nearly maximal theta23 from the approximate S3 symmetry of lepton mass matrices
• The S_3 flavor symmetry in 3-3-1 models
• Radiative Linear Seesaw model, Dark Matter and $U(1{)}_{B-L}$
• Generalized Tri-bimaximal Neutrino Mixing and Its Sensitivity to Radiative Corrections
• Radiatively Induced Neutrino Masses and Oscillations in an SU(3)_LxU(1)_N Gauge Model
• Neutrino Mixings and Fermion Masses in Supersymmetric SU(5)
• Renormalization group running of neutrino parameters
• Structure of neutrino mass matrix and CP violation
• How to Describe Neutrino Mixing and CP Violation
• Explicit SO(10) Supersymmetric Grand Unified Model for the Higgs and Yukawa Sectors
• 1-3 leptonic mixing and the neutrino oscillograms of the Earth
• A neutrino mass matrix with seesaw mechanism and two-loop mass splitting
• Construction of a Minimal Higgs SO(10) SUSY GUT Model
• Exact $S_3$ symmetry solving the supersymmetric flavor problem
• A Flavor Symmetry Model for Bilarge Leptonic Mixing and the Lepton Masses
• Discrete Flavor Symmetry, Dynamical Mass Textures, and Grand Unification
• The breaking of the flavour permutational symmetry: Mass textures and the CKM matrix
• The breaking of the flavour permutational symmetry: Mass textures and the CKM matrix
• Broken S_3 Flavor Symmetry of Leptons and Quarks: Mass Spectra and Flavor Mixing Patterns
• Large Mixing Angle MSW Solution in S_3 Flavor Symmetry
• Dirac Neutrinos with $S_4$ Flavor Symmetry in Warped Extra Dimensions
• A Large Scale Double Beta and Dark Matter Experiment: GENIUS
• Vacuum Neutrino Oscillations of Solar Neutrinos and Lepton Mass Matrices
• The Production of Single t-Quarks at LEP and HERA
• Bi-maximal Lepton Flavor Mixing Matrix and Neutrino Oscillation
• Large Solar Neutrino Mixing and Radiative Neutrino Mechanism
• Neutrinoless Double Beta Decay and Future Neutrino Oscillation Precision Experiments
• Bimaximal Neutrino Mixings from Lopsided Mass Matrices
• Bilarge Neutrino Mixing and μ- τPermutation Symmetry for Two-loop Radiative Mechanism
• The D_4 flavor symmery in 3-3-1 model with neutral leptons
• Broken S3 Symmetry in the Neutrino Mass Matrix and Non-Zero theta_{13}
• Large CP Violation, Large Mixings of Neutrinos and Democratic-type Neutrino Mass Matrix
• The T2K Indication of Relatively Large theta_13 and a Natural Perturbation to the Democratic Neutrino Mixing Pattern
• Systematic search for successful lepton mixing patterns with nonzero theta_13
• Democratic Neutrino Mixing Reexamined
• Implications of the Daya Bay observation of θ_{13} on the leptonic flavor mixing structure and CP violation
• The T7 flavor symmetry in 3-3-1 model with neutral leptons
• Further Evidence for Threefold Maximal Lepton Mixing and a Hierarchical Spectrum of Neutrino Mass-Squared Differences
• Properties of CP Violation in Neutrino-Antineutrino Oscillations
• Democratic (S)fermions and Lepton Flavor Violation
• Implications of the Quark Mass Hierarchy on Flavor Mixings
• Are lepton flavor mixings in the democratic mass matrix stable against quantum corrections?
• Almost Maximal Lepton Mixing with Large T Violation in Neutrino Oscillations and Neutrinoless Double Beta Decay
• Neutrino Mixing with Non-Zero ${\theta }_{13}$ and CP Violation in the 3-3-1 Model Based on $S_4$ Flavor Symmetry
• The $\mu$-$\tau$ reflection symmetry of Majorana neutrinos
• Two-loop Radiative Neutrino Mechanism in an $SU(3{)}_L\times U(1{)}_N$ Gauge Model
• Neutrino mixing matrices with relatively large ${\theta }_{13}$ and with texture one-zero
• Large Mixing Angle MSW Solution in an SU(3)_LxU(1)_N Gauge Model with Two-loop Radiative Mechanism
• Large Solar Neutrino Mixing in an Extended Zee Model
• Global Three-Neutrino Vacuum Oscillation fits to the Solar and Atmospheric Anomalies
• Obtaining the large angle MSW solution to the solar neutrino problem in models
• Tetra-maximal Neutrino Mixing and Its Implications on Neutrino Oscillations and Collider Signatures
• Radiative Generation of ${\theta }_{13}$ with the Seesaw Threshold Effect
• Embedding Phenomenological Quark-Lepton Mass Matrices into SU(5) Gauge Models
• Right Unitarity Triangles, Stable CP-violating Phases and Approximate Quark-Lepton Complementarity
• Unique Mass Texture for Quarks and Leptons
• Flavor Democracy and Type-II Seesaw Realization of Bilarge Neutrino Mixing
• The Interplay between Neutrinos and Charged Leptons in the Minimal SU(3)_LxU(1)_N Gauge Model
• A Novel Parametrization of tau-lepton Dominance and Simplified One-loop Renormalization-group Equations of Neutrino Mixing Angles and CP-violating Phases
• Broken $S_3$ Symmetry in the Neutrino Mass Matrix
• Models of Neutrino Masses and Mixings
• Exploring the neutrino mass matrix at M_R scale
• Comment on Neutrino Masses and Oscillations in an $SU(3{)}_L\times U(1{)}_N$ Model with Radiative Mechanism
• A Shift from Democratic to Tri-bimaximal Neutrino Mixing with Relatively Large theta_{13}
• Quantum numbers of heavy neutrinos, tri-bi-maximal mixing through double seesaw with permutation symmetry, and comment on ${\theta }_{\mathrm{sol}}+{\theta }_c\simeq \frac{\pi }{4}$
• Is bi-maximal mixing compatible with the large angle MSW solution of the solar neutrino problem?
• Lepton Mass Hierarchy and Neutrino Mixing
• Atmospheric and Solar Neutrino Oscillations in \nuMSSM and Beyond
• Day-Night and Energy Dependence of MSW Solar Neutrinos for Maximal Mixing
• The flavor puzzle in multi-Higgs models
• Complementary Ansatz for the neutrino mass matrix
• Large and Almost Maximal Neutrino Mixing within the Type II See-Saw Mechanism
• Dynamical Neutrino Mass Matrix: Large (Small) Mixing Solution to Atmospheric (Solar) Neutrino Oscillations
• Large CP Violation, Large Mixings of Neutrinos and the $Z_3$ Symmetry
• Democratic Neutrino Mixing and Radiative Corrections
• Lepton Masses from a TeV Scale in a 3-3-1 Model
• Leptonic mixing, family symmetries, and neutrino phenomenology
• Corrections for tribimaximal, bimaximal and democratic neutrino mixing matrices
• The CP violating phase δ_{13} and the quark mixing angles θ_{13}, θ_{23} and θ_{12} from flavour permutational symmetry breaking
• Nearly Bi-Maximal Neutrino Mixing, Muon g-2 Anomaly and Lepton-Flavor-Violating Processes
• Bi-maximal Neutrino Mixing Pattern Reexamined
• Muon Anomalous Magnetic Moment and Lepton Flavor Violation
• Relating the neutrino mixing angles to a lepton mass hierarchy
• Large θ_13 from finite quantum corrections in quasi-degenerate neutrino mass spectrum
• Low scale gravity as the source of neutrino masses?
• Neutrino Oscillations and Lepton Flavor Mixing
• Implications of texture 4 zero lepton mass matrices for U_{e3}
• Radiative Corrections to Democratic Lepton Mixing
• Can the Lepton Flavor Mixing Matrix Be Symmetric?
• Radiative and Seesaw Threshold Corrections to the $S_3$ Symmetric Neutrino Mass Matrix
• Tri-Maximal vs Bi-Maximal Neutrino Mixing
• Constraints on Flavor Neutrino Masses and sin^2(2theta_{12})>>sin^2(theta_{13}) in Neutrino Oscillations
• Effect of Flavour Oscillations on the Detection of Supernova Neutrinos
• Covariant Extremisation of Flavour-Symmetric Jarlskog Invariants and the Neutrino Mixing Matrix
• SO(3) Gauge Symmetry and Neutrino-Lepton Flavor Physics
• Charged lepton correction to tribimaximal lepton mixing and its implications to neutrino phenomenology
• Quasidegeneracy of Majorana Neutrinos and the Origin of Large Leptonic Mixing
• Weak properties of the tau lepton via a spin-0 unparticle
• On the Quasi-fixed Point in the Running of CP-violating Phases of Majorana Neutrinos
• Flavor Mixing Democracy and Minimal CP Violation
• Deviation from Tri-Bimaximal Mixing and Large Reactor Mixing Angle
• Symmetry based parameterizations of the lepton mixing matrix
• Generic Friedberg-Lee Symmetry of Dirac Neutrinos
• Consistency of perturbed Tribimaximal, Bimaximal and Democratic mixing with Neutrino mixing data
• Large Leptonic Dirac CP Phase from Broken Democracy with Random Perturbations
• Integral solutions to the one-loop renormalization-group equations for lepton flavor mixing parameters and the Jarlskog invariant
• Lepton mass and mixing in a Neutrino Mass Model based on $S_4$ flavor symmetry
• Charged lepton contributions to bipair neutrino mixing
• Effective alignments as building blocks of flavour models
• Singular Kahler Potential and Heavy Top Quark in A Democratic Mass Matrix Model
• Model-independent access to the structure of quark flavor mixing
• Origin of neutrino masses and mixings
• Bi-pair Neutrino Mixing
• The Higgs Seesaw Induced Neutrino Masses and Dark Matter
• Seesaw mirroring between light and heavy Majorana neutrinos with the help of the $S_3^{}$ reflection symmetry
• Study on perturbation schemes for achieving the real PMNS matrix from various symmetric textures
• A Higher-dimensional Origin of the Inverted Mass Hierarchy for Neutrino
• Impact of Fermion Mass Degeneracy on Flavor Mixing
• Trimaximal-Cabibbo neutrino mixing: A parametrization in terms of deviations from tri-bimaximal mixing
• Perturbative Bottom-up Approach for Neutrino Mass Matrix in Light of Large θ_{13} and Role of Lightest Neutrino Mass
• Generalized Friedberg-Lee model for CP violation in neutrino physics
• Neutrino mixing schemes and neutrinoless double beta decay
• Bi-large Neutrino Mixing and Mass of the Lightest Neutrino from Third Generation Dominance in a Democratic Approach
• Generalized Scaling Ansatz and Minimal Seesaw Mechanism
• Two/Three-Flavor Oscillation and MSW/Vacuum Oscillation Solution of Neutrinos in the SO(3) Gauge Model
• New mixing schemes for (3+1) neutrinos
• CP violation due to multi Froggatt-Nielsen fields
• Geometrical Model for Non-Zero theta_13
• Hierarchical majorana neutrinos from democratic mass matrices
• Leading Order Textures for Lepton Mass Matrices
• Status of the Gribov-Pontecorvo Solution to the Solar Neutrino Problem
• Possible Flavor Mixing Structures of Lepton Mass Matrices
• Theoretical Overview on the Flavor Issues of Massive Neutrinos
• Form Invariance and Symmetry in the Neutrino Mass Matrix
• Model independent Analysis of Dirac CP Violating Phase for some well known mixing scenarios
• Broken $S_{3\mathrm{L}}^{}\times S_{3\mathrm{R}}^{}$ Flavor Symmetry and Leptonic CP Violation
• Nonzero ${\theta }_{13}$ and Neutrino Masses from Modified Neutrino Mixing Matrix
• Bounds On Anomalous Magnetic And Electric Moments Of Tau Lepton From LEP And Lepton Flavor Violation
• Fermion Masses and Mixing in General Warped Extra Dimensional Models
• Tetrahedral Symmetry A${}_4$ in Anti-SU(5) GUT
• 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
• Examining the Geometrical Model with Inverted Mass Hierarchy for Neutrinos
• CP violation in bipair neutrino mixing
• Large Mixing and CP Violation in Neutrino Oscillations
• A Phenomenological Study on Lepton Mass Matrix Textures
• CP violating phase from charged-lepton mixing
• SUSY SU(5) $\times S_4$ GUT Flavor Model for Fermion Masses and Mixings with Adjoint, Large ${\theta }_{13}^{PMNS}$
• Progress on Models of Neutrino Masses and Mixings
• Breaking flavor democracy with symmetric perturbations
• Neutrinos Meet Supersymmetry: Quantum Aspects of of Neutrinophysics in Supersymmetric Theories
• Phases of Flavor Neutrino Masses and CP Violation
• A Systematic Analysis of Perturbations for Hexagonal Mixing Matrix
• A hidden hierarchy of neutrino masses
• Dynamic fermion flavor mixing through transition dipole moments
• Neutrino masses from universal Fermion mixing
• Search for New Physics with Neutrinoless Double Beta Decay
• Dynamical realization of democratic Yukawa matrices and alignment of A-terms
• Vacuum and MSW interpretations of solar neutrino data with the LNW mass matrix
• A Nearest-neighbor Expansion of Lepton Flavor Mixing in Powers of the $\mu$-$\tau$ Permutation Symmetry Breaking Effect
• The common origin of the family mass hierarchy and CP violation from flavour-dependent vacuum for quarks and leptons
• Broken Democracy with Intermediate ${\mathbb{S}}_2\times {\mathbb{S}}_2$ Residual Symmetry and Random Perturbations
• Generating the Cabibbo Angle in Flavored Gauge Mediation Models with Discrete Non-Abelian Symmetries
• Non-zero θ_13 in models for hierarchical neutrino mass spectrum
• Flavour Symmetry Embedded -- GLoBES (FaSE-GLoBES)
• Leptogenesis and CP Violation in Neutrino Oscillations
• The Large Mixing of the Pseudoscalars in QCD and Large Flavor Mixing of Neutrinos
• Lopsided texture compatible with thermal leptogenesis in partially composite Pati--Salam unification
• Relating Lepton Mixing Angles with Lepton Mass Hierarchy
• Lepton mixing patterns from combinations of elementary correlations
• A hyperbolic parametrization of lepton mixing for small $U_{e3}$
• Yukawa textures in modular symmetric vacuum of magnetized orbifold models