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- W1985168957 abstract "The Daya Bay Collaboration has recently reported its first bar{nu}_e to bar{nu}_e oscillation result which points to theta_{13} simeq 8.8^circ pm 0.8^circ (best-fit pm 1sigma range) or theta_{13} neq 0^circ at the 5.2sigma level. The fact that this smallest neutrino mixing angle is not strongly suppressed motivates us to look into the underlying structure of lepton flavor mixing and CP violation. Two phenomenological strategies are outlined: (1) the lepton flavor mixing matrix U consists of a constant leading term U_0 and a small perturbation term Delta U; and (2) the mixing angles of U are associated with the lepton mass ratios. Some typical patterns of U_0 are reexamined by constraining their respective perturbations with current experimental data. We illustrate a few possible ways to minimally correct U_0 in order to fit the observed values of three mixing angles. We point out that the structure of U may exhibit an approximate mu-tau permutation symmetry in modulus, and reiterate the geometrical description of CP violation in terms of the leptonic unitarity triangles. The salient features of nine distinct parametrizations of U are summarized, and its Wolfenstein-like expansion is presented by taking U_0 to be the democratic mixing pattern." @default.
- W1985168957 created "2016-06-24" @default.
- W1985168957 creator A5050803462 @default.
- W1985168957 date "2012-03-12" @default.
- W1985168957 modified "2023-09-25" @default.
- W1985168957 title "Implications of the Daya Bay observation of θ <sub>13</sub> on the leptonic flavor mixing structure and <i>CP</i> violation" @default.
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- W1985168957 doi "https://doi.org/10.1088/1674-1137/36/4/l01" @default.
- W1985168957 hasPublicationYear "2012" @default.
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