Softly broken $μ\leftrightarrowτ$ symmetry in the minimal see-saw model
| dc.creator | Gómez-Izquierdo, Juan Carlos | |
| dc.creator | Pérez-Lorenzana, Abdel | |
| dc.date | 2007-11-01 | |
| dc.date | 2008-06-27 | |
| dc.date.accessioned | 2026-07-07T11:38:28Z | |
| dc.date.available | 2026-07-07T11:38:28Z | |
| dc.description | Neutrino oscillations data indicates that neutrino mixings are consistent with an apparent $ν_μ- ν_τ$ exchange symmetry in neutrino mass matrix. We observe that in the mininimally extended standard model with the see-saw mechanism, one can impose $μ\leftrightarrowτ$ symmetry at the tree level on all Lagrangian terms, but for the mass difference among $μ$ and $τ$ leptons. In the absence of any new extra physics, this mass difference becomes the only source for the breaking of such a symmetry, which induces, via radiative corrections, small but predictable values for $θ_{13}$, and for the deviation of $θ_{ATM}$ from maximallity. In the CP conserving case, the predictions only depend on neutrino mass hierarchy and may provide a unique way to test for new physics with neutrino experiments. | |
| dc.description | Typos corrected. References and short discussions added. Final version, 6 pages, 2 figures | |
| dc.identifier | https://arxiv.org/abs/0711.0045 | |
| dc.identifier | http://arxiv.org/abs/0711.0045 | |
| dc.identifier | Phys.Rev.D77:113015,2008 | |
| dc.identifier | doi:10.1103/PhysRevD.77.113015 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/199577 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Softly broken $μ\leftrightarrowτ$ symmetry in the minimal see-saw model | |
| dc.type | text |