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 theta(13) 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 R-13 . U . R-23 . U > R-13 for BM and R-13 . U . R-13 for TBM perturbative case successfully fit all neutrino mixing angles within 1 sigma range. The perturbed PMNS matrix R-12 .U . R-13 for DC, TBM and R-23 . U . R-23 for TBM case is successful in prodeucing mising angles at 2 sigma level. The other rotation schemes are either excluded or successful in producing mixing angles at 3 sigma level.