Lepton flavor mixing and C P symmetry
Abstract
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.
- Publication:
-
Physical Review D
- Pub Date:
- February 2015
- DOI:
- 10.1103/PhysRevD.91.033003
- arXiv:
- arXiv:1412.8352
- Bibcode:
- 2015PhRvD..91c3003C
- Keywords:
-
- 14.60.Pq;
- 11.30.Er;
- Neutrino mass and mixing;
- Charge conjugation parity time reversal and other discrete symmetries;
- High Energy Physics - Phenomenology
- E-Print:
- 24 pages, 3 figures