One diagonal texture or cofactor zero of the neutrino mass matrix

Abstract

In view of the recent measurement of nonzero ${\theta }_{13}$, we carry out a systematic study of a simple class of neutrino models that has one diagonal texture or cofactor zero in the mass matrix. There are seven free parameters in the model and five of them are already measured by neutrino oscillation experiments; some cases for the normal or inverted hierarchy are excluded and for the rest we obtain the preferred values for the lightest neutrino mass and Dirac CP phase. We find that there are strong similarities between one diagonal texture zero models with one mass hierarchy and one diagonal cofactor zero models with the opposite mass hierarchy. We also make predictions for neutrinoless double beta decay for these models. For the one cofactor zero models, we present a simple realization based on a new U(1) gauge symmetry.

19 pages, 6 eps figures; references added and notation changes

References in corpus (5)

• Observation of electron-antineutrino disappearance at Daya Bay
• Vanishing Minors in the Neutrino Mass Matrix from Abelian Gauge Symmetries
• Zero minors of the neutrino mass matrix
• Neutrino Mass Matrices with a Texture Zero and a Vanishing Minor
• Seesaw mechanism with four texture zeros in the neutrino Yukawa matrix

Cited by in corpus (15)

• Neutrino mass matrices with one texture zero and a vanishing neutrino mass
• Near Maximal Atmospheric Neutrino Mixing in Neutrino Mass Models with Two Texture Zeros
• Trimaximal mixing with a texture zero
• Charged Lepton Corrections to Scaling Neutrino Mixing
• Reproducing lepton mixing in a texture zero model
• Neutrino seesaw mechanism with texture zeros
• Investigating the hybrid textures of neutrino mass matrix for near maximal atmospheric neutrino mixing
• Confronting Four Zero Neutrino Yukawa Textures with $N_2^{}$-dominated Leptogenesis
• Texture of One Equality in Neutrino Mass Matrix
• Study of neutrino mass matrices with vanishing trace and one vanishing minor
• The Texture One Zero Neutrino Mass Matrix With Vanishing Trace
• Dual models of the neutrino mass spectrum
• Neutrino Mass Matrices from Two Zero 3x2 Yukawa Textures and Minimal d=5 Entries
• A new texture of neutrino mass matrix with three constraints
• Phenomenology of Trimaximal mixing with one texture equality