Deviations from tri-bimaximal mixing

Rodejohann, Werner

doi:10.1016/j.nuclphysbps.2009.02.078

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Deviations from tri-bimaximal mixing

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Rodejohann, Werner
Werner Rodejohann - ERC Starting Grant, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society;

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Rodejohann, W. (2009). Deviations from tri-bimaximal mixing.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-761F-D

Abstract

Current data indicates that lepton mixing is very close to the tri-bimaximal mixing scenario. In general, however, one expects deviations from any mixing scenario. We discuss several examples to perturb tri-bimaximal mixing, namely soft breaking, renormalization group running and charged lepton corrections. We also present a convenient parametrization of the PMNS matrix which takes advantage of the apparently close to tri-bimaximal mixing pattern. Finally, it is discussed how to generate values of U_{e3} which correspond to the recently found hint for non-zero U_{e3}.