Parametrizing the lepton mixing matrix in terms of deviations from tri-bimaximal mixing
arXiv:0710.0530 · doi:10.1016/j.physletb.2007.10.078
Abstract
We propose a parametrization of the lepton mixing matrix in terms of an expansion in powers of the deviations of the reactor, solar and atmospheric mixing angles from their tri-bimaximal values. We show that unitarity triangles and neutrino oscillation formulae have a very compact form when expressed in this parametrization, resulting in considerable simplifications when dealing with neutrino phenomenology. The parametrization, which is completely general, should help to establish possible relations between the deviations of the reactor, solar and atmospheric mixing angles from their tri-bimaximal values, and hence enable models which predict such relations to be more directly compared to experiment.
More references added. 14 pages, 2 figures
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Cited by in corpus (5)
- TriMinimal Parametrization of the Neutrino Mixing Matrix
- Group space scan of flavor symmetries for nearly tribimaximal lepton mixing
- Non-unitary deviation from the tri-bimaximal lepton mixing and its implications on neutrino oscillations
- Unified parametrization of quark and lepton mixing matrices in tri-bimaximal pattern
- Deviation from Tri-Bimaximal Neutrino mixing from the Charged Lepton Sector