Revisiting the texture zero neutrino mass matrices

Understand

In the light of refined and large reactor mixing angle $\theta_{13}$, we have revisited the texture three and two zero neutrino mass matrices in the flavor basis.

• For Majorana neutrinos, it has been explicitly shown that all the texture three zero mass matrices remain ruled out.
• Further, for both normal and inverted mass ordering, for the texture two zero neutrino mass matrices one finds interesting constraints on the Dirac-like CP violating phase $\delta$ and Majorana phases $\rho$ and $\sigma$.