Prediction of Leptonic CP Phase in $A_4$ symmetric model

Abstract

We consider minimal modifications to tribimaximal (TBM) mixing matrix which accommodate non-zero mixing angle ${\theta }_{13}$ and CP violation. We derive four possible forms for the minimal modifications to TBM mixing in a model with $A_4$ flavor symmetry by incorporating symmetry breaking terms appropriately. We show how possible values of the Dirac-type CP phase ${\delta }_D$ can be predicted with regards to two neutrino mixing angles in the standard parametrization of the neutrino mixing matrix. Carrying out numerical analysis based on the recent updated experimental results for neutrino mixing angles, we predict the values of the CP phase for all possible cases. We also confront our predictions of the CP phase with the updated fit.

15 pages, 3 figures

References in corpus (16)

• Observation of electron-antineutrino disappearance at Daya Bay
• Updated fit to three neutrino mixing: status of leptonic CP violation
• Neutrino oscillations refitted
• Improved Measurement of Electron Antineutrino Disappearance at Daya Bay
• Possible Alternatives to Tri-bimaximal Mixing
• Comparing Trimaximal Mixing and Its Variants with Deviations from Tri-bimaximal Mixing
• A Simplest A4 Model for Tri-Bimaximal Neutrino Mixing
• Z_2 Symmetry Prediction for the Leptonic Dirac CP Phase
• Minimal Modification To The Tri-bimaximal Neutrino Mixing
• Tri-bimaximal neutrino mixing and neutrinoless double beta decay
• Neutrino Mass Sum-rules in Flavor Symmetry Models
• Connecting Leptogenesis to CP Violation in Neutrino Mixings in a Tri-bimaximal Mixing model
• Predicting CP violation in Deviation from Tri-bimaximal mixing of Neutrinos
• Prediction of leptonic CP phase from perturbatively modified tribimaximal (or bimaximal) mixing
• Generalized Friedberg-Lee model for neutrino masses and leptonic CP violation from mu-tau symmetry breaking
• Generalized Friedberg-Lee model for CP violation in neutrino physics

Cited by in corpus (6)

• Towards the minimal seesaw model via CP violation of neutrinos
• A Survey of Neutrino Flavor Models and the Neutrinoless Double Beta Decay Funnel
• Renormalisation Group Corrections to Neutrino Mixing Sum Rules
• Neutrino CP violation and sign of baryon asymmetry in the minimal seesaw model
• Confronting the prediction of leptonic Dirac CP-violating phase with experiments
• A neutrino mixing model based on an $A_4\times Z_3\times Z_4$ flavour symmetry