Lower bound on neutrino mass and possible CP violation in neutrino oscillations

Abstract

The phenomenology of the most general lepton mass matrices obtained through weak basis transformations has been discussed. Using a hierarchical parametrization of these mass matrices, the exact relations for lepton mixing angles have been obtained assuming normal neutrino mass hierarchy and natural structures of lepton mass matrices. The recent three neutrino oscillation data together with the condition of naturalness on Dirac lepton mass matrices provide a lower bound on the lightest neutrino mass of mν1 > 3 meV along with a non-vanishing Dirac CP violating phase.

Accepted for publication in Phys. Rev. D as a Rapid Communication

References in corpus (11)

• Observation of electron-antineutrino disappearance at Daya Bay
• Indication of Electron Neutrino Appearance from an Accelerator-produced Off-axis Muon Neutrino Beam
• Radiative Neutrino Mass, Dark Matter and Leptogenesis
• Neutrino Mass and Baryon Asymmetry from Dirac Seesaw
• Quark lepton complementarity and renormalization group effects
• Weak Basis Transformations and Texture Zeros in the Leptonic Sector
• Minimal Seesaw Textures with Two Heavy Neutrinos
• Texture specific mass matrices with Dirac neutrinos and their implications
• Texture Zeros for Dirac Neutrinos and Current Experimental Tests
• Neutrino Mixing Angles from Texture Zeros of the Lepton Mass Matrices
• Minimal Weak Basis Textures and Quark Mixing Data

Cited by in corpus (10)

• Survey of Texture Zeros with Light Dirac Neutrinos
• Quark Flavor Mixings from Hierarchical Mass Matrices
• Five Texture Zeros for Dirac Neutrino Mass Matrices
• Lepton textures and neutrino oscillations
• Five texture zeros in the lepton sector and neutrino oscillations at DUNE
• Exploring the predictability of symmetric texture zeros in quark mass matrices
• Generic lepton mass matrices and neutrino oscillations
• Implications of ${\delta }_l^{CP}\sim 270^{\circ }$ and ${\theta }_{23}\gtrsim 45^{\circ }$ for texture specific lepton mass matrices and $0\nu \beta \beta$ decay
• A minimal axion model for mass matrices with five texture-zeros
• Quark Mass Matrices, textures and CKM precision measurements