The same method based on the rotation of generation numbers in the diagonal mass matrix is used in the electron–neutrino sector of theory, where neutrino mass matrix is determined by the Majorano see-saw approach. The hierarchy of neutrino masses, much smaller than for quarks, was used including all existing (even preliminary) experimental data on neutrino mixing.
The leptonic mass matrix found in this way includes the unknown value of the leptonic CP-phase. It leads to large νμντ oscillations and suppresses the νeντ and also νeνμ oscillations. The explicit expressions for the probabilities of neutrino oscillation were obtained in order to specify the role of leptonic CP-phase. The value of time reversal effect (proportional to sin δ′) was found to be small 1%. However, a dependence of the values of νeνμ,νeντ transition probabilities, averaged over oscillations, on the leptonic CP-phase has found to be not small – of order of ten percent. 相似文献