The reactor mixing angle and CP violation with two texture zeros in the light of T2K

We reconsider the phenomenological implications of two texture zeros in symmetric neutrino mass matrices in the light of the recent T2K results for the reactor angle and the new global analysis which gives also best fit values for the Dirac CP phase δ. The most important results of the analysis are: Among the viable cases classified by Frampton et al. only A1 and A2 predict θ13θ13 to be different from zero at 3σ. Furthermore these two cases are compatible only with a normal mass spectrum in the allowed region for the reactor angle. At the best fit value A1 and A2 predict 0.024⩾sin2θ13⩾0.012 and 0.014⩽sin2θ13⩽0.032, respectively, where the bounds on the right and the left correspond to cosδ=−1 and cosδ=1, respectively. The cases B1, B2, B3 and B4 predict nearly maximal CP violation, i.e. cosδ≈0.