New Simple A_4 Neutrino Model for Nonzero θ_{13} and Large δ_{CP}

In a new simple application of the non-Abelian discrete symmetry $A_4$ to charged-lepton and neutrino mass matrices, we show that for the current experimental central value of $\sin^2 2 θ_{13} \simeq 0.1$, leptonic CP violation is necessarily large, i.e. $|\tan δ_{CP}| > 1.3$.

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