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
 EPrint:
 24 pages, 3 figures