The strategy of constraining the lepton flavor mixing from remnant C P symmetry is investigated in a rather general way. The neutrino mass matrix generally admits four remnant C P transformations which can be derived from the measured lepton mixing matrix in the charged lepton diagonal basis. Conversely, the lepton mixing matrix can be reconstructed from the postulated remnant C P transformations. All mixing angles and C P -violating phases can be completely determined by the full set of remnant C P transformations or three of them. When one or two remnant C P transformations are preserved, the resulting lepton mixing matrix would depend on three real parameters or one real parameter, respectively, in addition to the parameters characterizing the remnant C P . The concrete form of the mixing matrix is also presented. The phenomenological predictions for the mixing parameters are discussed. The conditions leading to vanishing or maximal Dirac C P violation are studied.
Physical Review D
- Pub Date:
- February 2015
- Neutrino mass and mixing;
- Charge conjugation parity time reversal and other discrete symmetries;
- High Energy Physics - Phenomenology
- 24 pages, 3 figures