Lowering solar mixing angle in inverted hierarchy without charged lepton corrections

Abstract

In the present work, the inverted hierarchical neutrino mass model which is characterised by opposite CP parity in the first two mass eigenvalues $(m_1,-m_2,m_3)$, is studied in order to lower the predicted value of solar mixing angle ${\tan }^2{\theta }_{12}$, from the tri-bimaximal mixing (TBM), without sacrificing the conditions of maximal atmospheric mixing angle and zero reactor angle. The present attempt is different from the earlier approach where the correction from the charged lepton mass matrix is included in the leptonic mixing matrix to lower the prediction on solar mixing angle. The lowering of the solar mixing angle without charged lepton correction, can be obtained through the variation of the input value of a flavour twister term present in the texture of neutrino mass matrix having a 2-3 symmetry. The present analysis agrees with the latest experimental bounds on neutrino mass parameters and also represents an important result on the survival of the inverted hierarchical neutrino mass models having opposite CP parity in the first two eigenvalues.

10 pages, two figures. Accepted for publication in Journal of Physics G:Nuclear and Particle Physics

References in corpus (41)

• Tri-Bimaximal Mixing and the Neutrino Oscillation Data
• Tri-Bimaximal Neutrino Mixing, A4 and the Modular Symmetry
• Tri-Bimaximal Neutrino Mixing from Discrete Symmetry in Extra Dimensions
• Electron Energy Spectra, Fluxes, and Day-Night Asymmetries of ${}^8$B Solar Neutrinos from the 391-Day Salt Phase SNO Data Set
• A_4 Symmetry and Neutrinos with Very Different Masses
• Can Neutrinos be Degenerate in Mass?
• Oscillations of solar and atmospheric neutrinos
• Charged Lepton Corrections to Neutrino Mixing Angles and CP Phases Revisited
• Obtaining the Neutrino Mixing Matrix with the Tetrahedral Group
• On Deviations from Bimaximal Neutrino Mixing
• Tetrahedral Family Symmetry and the Neutrino Mixing Matrix
• Implications of neutrino data circa 2005
• Neutrino Masses and Mixings: a Theoretical Perspective
• Naturalness of nearly degenerate neutrinos
• Twisted Flavors and Tri/bi-Maximal Neutrino Mixing
• Can Neutrino Mixings Arise from the Charged Lepton Sector?
• Predictive Schemes for Bimaximal Neutrino Mixings
• Nontrivial Correlation between the CKM and MNS Matrices
• Stability of the Lepton-Flavor Mixing Matrix Against Quantum Corrections
• A question of hierarchy: matter effects with atmospheric neutrinos and anti-neutrinos
• Three-Neutrino Oscillations of Atmospheric Neutrinos, theta13, Neutrino Mass Hierarchy and Iron Magnetized Detectors
• QLC relation and neutrino mass hierarchy
• A model realizing the Harrison-Perkins-Scott lepton mixing matrix
• Inverted Hierarchy Models of Neutrino Masses
• Charged lepton contributions to the solar neutrino mixing and theta_13
• Neutrino 2-3 Symmetry and Inverted Hierarchy
• A prediction for U(e3) from patterns in the charged lepton spectra
• Neutrino 2004: Concluding Talk
• Normal vs. Inverted Hierarchy in Type I Seesaw Models
• Exploration prospects of a long baseline Beta Beam neutrino experiment with an iron calorimeter detector
• Lepton Mass Hierarchy and Neutrino Mixing
• What would it take to determine the neutrino mass hierarchy if ${\theta }_{13}$ were too small?
• Predictive Framework with a Pair of Degenerate Neutrinos at a high scale
• Analytic Solutions to the RG Equations of the Neutrino Physical Parameters
• Radiative origin of solar scale and U_{e3}
• Bimaximal Mixings from the Texture of the Right-handed Majorana Neutrino Mass Matrix
• Right-handed Majorana Neutrino Mass Matrices for Generating Bimaximal Mixings in Degenerate and Inverted Models of Neutrinos
• Numerical consistency check between two approaches to radiative corrections for neutrino masses and mixings
• Discriminating neutrino mass models using Type II seesaw formula
• More on deviation from bi-maximal neutrino mixing
• Inverted Hierarchical Model of Neutrino Masses Revisited

Cited by in corpus (5)

• Charged lepton contributions to bimaximal and tri-bimaximal mixings for generating $\sin {\theta }_{13}\ne 0$ and ${\tan }^2{\theta }_{23}<1$
• Validity of quasi-degenerate neutrino mass models and their predictions on baryogenesis
• Quasi-Degenerate Neutrino Masses with Normal and Inverted Hierarchy
• Quasi-degenerate Neutrino mass models and their significance: A model independent investigation
• On the ambiguities in the tri-bimaximal mixing matrix and corresponding charged lepton corrections