Quark–lepton complementarity with lepton and quark mixing data predict θ13PMNS=(9+1-2)°
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- Chauhan, B., Picariello, M., Pulido, J. et al. Eur. Phys. J. C (2007) 50: 573. doi:10.1140/epjc/s10052-007-0212-z
The complementarity between the quark and lepton mixing matrices is shown to provide a robust prediction for the neutrino mixing angle θ13PMNS. We obtain this prediction by first showing that the matrix VM, product of the CKM and PMNS mixing matrices, may have a zero (1,3) entry, which is favored by the experimental data. Hence models with bimaximal or tribimaximal forms of the correlation matrix VM are quite possible. Any theoretical model with a vanishing (1,3) entry of VM, which is in agreement with the quark data, and the solar and the atmospheric mixing angle leads to θ13PMNS=(9+1-2)°. This value is consistent with the present 90% CL experimental upper limit.