Perturbation to TBM mixing and its phenomenological implications

作者：Sruthilaya M^*; Gollu Srinu

来源：Modern Physics Letters A, 2016, 31(38): 1650207.

DOI：10.1142/S0217732316502072

• Neutrino oscillation
• TBM mixing

To accommodate the recently observed nonzero reactor mixing angle 1913, we consider the lepton mixing matrix as tri-bimaximal mixing (TBM) form in the leading order along with a perturbation in neutrino sector. The perturbation is taken to be a rotation in 23 plane followed by a rotation in 13 plane, i.e. R-23(0'(23)) R-13(0'(13), phi). We obtain the allowed values of the parameters theta'(23), theta'(13) and phi, which can accommodate all the observed mixing angles consistently and calculate the phenomenological observables such as the Dirac CP violating phase (delta(CP)), Jarlskog invariant (J(CP)), effective Majorana mass M-ee(nu) and m(nu e), the electron neutrino mass. We find that delta(CP) can take any values between 0 and -pi/2 and M-ee(nu), always comes below its experimental upper limit.

• 出版日期2016-12-14