Communications in Physics 26
, 1-9 (2016)
ON THE CP VIOLATION PHASE IN A NEUTRINO MIXING MODEL WITH AN A4 FLAVOR SYMMETRY
PHI QUANG VAN AND NGUYEN THI HONG VAN
Neutrino masses and mixing in an extended standard model acquiring an A4 flavor symmetry are considered. The corresponding three-neutrino mixing matrix obtained via a perturbative method allows us to determine the Dirac CP violation phase (𝛳CP) as a function of the mixing angles (𝛳12;𝛳23;𝛳13). Then, numerical values and distributions of 𝛳CP are given. The latter values are quite close to the global fits of the experimental data for both the normal ordering and inverse ordering of the neutrino masses.