LFV in Models with A4 Flavour Symmetry
arXiv:0811.3512 · doi:10.1016/j.nuclphysbps.2009.02.081
Abstract
The approximated tri-bimaximal mixing observed in the neutrino oscillations is a particular feature of a class of models characterized by the spontaneously broken horizontal flavour symmetry A4. In this paper, it is presented an analysis on the predictions of these models for relevant low-energy observables. In an effective operator approach, these effects are dominated by dim-6 operators, suppressed by the scale M of new physics. Indications for M and an upper bound on θ_{13} of a few percent are found.
3 pages, 1 figure, adapted from a talk given at "Now 2008", September 6-13 2008, Conca Specchiulla (Otranto, Italy)
References in corpus (6)
- Tri-Bimaximal Neutrino Mixing, A4 and the Modular Symmetry
- Tri-Bimaximal Neutrino Mixing from Discrete Symmetry in Extra Dimensions
- Tri-bimaximal Neutrino Mixing and Quark Masses from a Discrete Flavour Symmetry
- Tri-bimaximal Neutrino Mixing from Orbifolding
- A predictive A4 model, Charged Lepton Hierarchy and Tri-bimaximal Sum Rule
- Lepton Flavour Violation in Models with A4 Flavour Symmetry