Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-09-16
Phys.Rev. D66 (2002) 113006
Physics
High Energy Physics
High Energy Physics - Phenomenology
11 pages. Final version to be published in PRD
Scientific paper
10.1103/PhysRevD.66.113006
We propose a scheme of lepton mixing in which the unitary matrix that diagonalizes the neutrino mass matrix is bimaximal and the deviation from bimaximal of the lepton mixing matrix is due to the unitary matrix that diagonalizes the charged-lepton mass matrix. This matrix is assumed to be hierarchical, like the quark mixing matrix. It is shown that in general it is possible to have a sizable value for |U_{e3}| together with an effective two-neutrino maximal mixing in solar neutrino experiments. If the effective mixing in solar neutrino experiments is less than maximal, as indicated by current data, |U_{e3}| is bounded from below. Furthermore, in general the violation of CP could be relatively large.
Giunti Carlo
Tanimoto Morimitsu
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