Predicting Lepton Flavor Mixing from $\Delta (48)$ and Generalized CP Symmetries

Abstract

We propose to understand the mixing angles and CP-violating phases from the $\Delta (48)$ family symmetry combined with the generalized CP symmetry. A model-independent analysis is performed by scanning all the possible symmetry breaking chains. We find a new mixing pattern with only one free parameter, excellent agreement with the observed mixing angles can be achieved and all the CP-violating phases are predicted to take nontrivial values. This mixing pattern is testable in the near future neutrino oscillation and neutrinoless double-beta decay experiments. Finally, a flavor model is constructed to realize this mixing pattern.

Comments: 5 pages, 2 figures, minor corrections, accepted for publication in Chin. Phys. C