Nonzero $θ_{13}$ and CP Violation from Broken $μ-τ$ Symmetry

Nonzero and relatively large of $θ_{13}$ mixing angle has some phenomenological consequences on neutrino physics beyond the standard model. One of the consequences if the mixing angle $θ_{13}\neq 0$ is the possibility of the CP violation on the neutrino sector. In order to obtain nonzero $θ_{13}$ mixing angle, we break the neutrino mass matrix that obey $μ-τ$ symmetry by introducing a complex parameter and determine the Jarlskog invariant as a measure of CP violation existence. By using the experimental data as input, we determine the Dirac phase $δ$ as function of mixing angle $θ_{13}$

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