Alternative Schemes of Predicting Lepton Mixing Parameters from Discrete Flavor and CP Symmetry

Understand

We suggest two alternative schemes to predict lepton mixing angles as well as $CP$ violating phases from a discrete flavor symmetry group combined with $CP$ symmetry.

• In the first scenario, the flavor and $CP$ symmetry is broken to the residual groups of the structure $Z_2\times CP$ in the neutrino and charged lepton sectors.
• The resulting lepton mixing matrix depends on two free parameters $\theta_{\nu}$ and $\theta_{l}$.
• This type of breaking pattern is extended to the quark sector.