Prediction of leptonicCPphase inA4symmetric model

2015/01/29 by Sin Kyu Kang, Morimitsu Tanimoto · 4 citations
Mathematics · Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Mathematics #Neutrino Physics Research #Particle physics theoretical and experimental studies #Phase (matter) #Physics #Quantum mechanics #hep-ph

paper · pdf · doi:10.1103/physrevd.91.073010

published as Phys. Rev. D 91, 073010 (2015) · 15 pages, 3 figures

arxiv created 2015/01/29 · openalex publication_date 2015/04/10 · arxiv updated 2015/04/16 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We consider minimal modifications to the tribimaximal (TBM) mixing matrix which accommodate nonzero mixing angle \ensuremathθ₁₃ and CP violation. We derive four possible forms for the minimal modifications to TBM mixing in a model with A₄ flavor symmetry by incorporating symmetry breaking terms appropriately. We show how possible values of the Dirac-type CP phase \ensuremathδ_D can be predicted with regards to two neutrino mixing angles in the standard parametrization of the neutrino mixing matrix. Carrying out a 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 for the CP phase with the updated fit.

Citations

• Review of Particle Physics
• Remarks on the Unified Model of Elementary Particles
• Nearly tri-bimaximal neutrino mixing and CP violation
• CPviolation in bilarge lepton mixing
• A simplest A4 model for Tri-Bimaximal neutrino mixing

Cited by

• Ameliorating the popular lepton mixings with A4 symmetry: A seesaw model for realistic neutrino masses and mixing
• Neutrino CP violation and sign of baryon asymmetry in the minimal seesaw model
• Scotogenic S3 symmetric generation of realistic neutrino mixing
• Sum rules for leptons