Oscillating neutrinos and mu --> e, gamma
| dc.creator | Casas, J. A. | |
| dc.creator | Ibarra, A. | |
| dc.date | 2001-03-06 | |
| dc.date | 2001-11-07 | |
| dc.date.accessioned | 2026-07-07T10:32:50Z | |
| dc.date.available | 2026-07-07T10:32:50Z | |
| dc.description | If neutrino masses and mixings are suitable to explain the atmospheric and solar neutrino fluxes, this amounts to contributions to FCNC processes, in particular mu --> e, gamma. If the theory is supersymmetric and the origin of the masses is a see-saw mechanism, we show that the prediction for BR(mu --> e, gamma) is in general larger than the experimental upper bound, especially if the largest Yukawa coupling is O(1) and the solar data are explained by a large angle MSW effect, which recent analyses suggest as the preferred scenario. Our analysis is bottom-up and completely general, i.e. it is based just on observable low-energy data. The work generalizes previous results of the literature, identifying the dominant contributions. Application of the results to scenarios with approximate top-neutrino unification, like SO(10) models, rules out most of them unless the leptonic Yukawa matrices satisfy very precise requirements. Other possible ways-out, like gauge mediated SUSY breaking, are also discussed. | |
| dc.description | 42 pages, LaTeX, 13 PS figures. References added and minor details corrected | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0103065 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0103065 | |
| dc.identifier | Nucl.Phys.B618:171-204,2001 | |
| dc.identifier | doi:10.1016/S0550-3213(01)00475-8 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/178891 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Oscillating neutrinos and mu --> e, gamma | |
| dc.type | text |