Corrections for tribimaximal, bimaximal and democratic neutrino mixing matrices

In this work we analyze the corrections to tribimaximal (TBM), bimaximal (BM) and democratic (DC) mixing matrices for explaining large reactor mixing angle θ13 and checking the consistency with other neutrino mixing angles. The corrections are parameterized in terms of small orthogonal rotations (R) with corresponding modified PMNS matrix of the form R_ij · U · R_kl where R_ij is rotation in ij sector and U is any one of these special matrices. We showed the rotations R₁₃ · U · R23, R₁₂ · U · R₁₃ for BM and R₁₃ · U · R₁₃ for TBM perturbative case successfully fit all neutrino mixing angles within 1σ range. The perturbed PMNS matrix R₁₂ · U · R₁₃ for DC, TBM and R23 · U · R23 for TBM case is successful in producing mixing angles at 2σ level. The other rotation schemes are either excluded or successful in producing mixing angles at 3σ level.