Neutrino mixing and lepton flavour violation in SUSY-gut models
Metadatos
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Jagiellonian University
Materia
Decay Mass
Fecha
2003Referencia bibliográfica
Illana, J.I.; Masip, M. Neutrino mixing and lepton flavour violation in SUSY-gut models. Acta Physica Polonica B, 34(11): 5413-5422 (2003). [http://hdl.handle.net/10481/32470]
Patrocinador
This work has been supported by the Spanish CICYT, the Junta de Andalucía and the European Union under contracts FPA2000-1558, FQM 101, and HPRN-CT-2000-00149, respectively.Resumen
In supersymmetric (SUSY) models the misalignment between fermion
and sfermion families introduces unsuppressed flavour-changing processes.
Even if the mass parameters are chosen to give no flavour violation, family
dependent radiative corrections make this adjustment not stable. In par-
ticular, due to the observed large neutrino mixings and potentially large
neutrino Yukawa couplings, sizable lepton flavour violation (LFV) is ex-
pected. After introducing the basic concepts, the framework and the main
assumptions, we report on a recent study of rare leptonic decays in a class
of SUSY–GUT models with three quasi-degenerate neutrinos. We show
that LFV effects are likely visible in forthcoming experiments.