2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/40882If neutrino masses and mixings are suitable to explain the atmospheric and solar neutrino fluxes, this amounts to contributions to FCNC processes, in particular $μ\to e, γ$. If the theory is supersymmetric and the origin of the masses is a see-saw mechanism, we show that the prediction for BR($μ\to e, γ$) is in general larger than the experimental upper bound, especially if the solar data are explained by a large angle MSW effect, which recent analyses suggest as the preferred scenario.10 pages, 3 figures, Talk given at Cairo International Conference on High Energy Physics, Cairo (CICHEP 2001), Egypt, 9-14, January 2001High Energy Physics - Phenomenologytext