Lepton Flavour Violation in Unified Models with U(1)-Family Symmetries

Details Lepton Flavour Violation in Unified Models with U(1)-Family Symmetries Lepton Flavour Violation in Unified Models with U(1)-Family Symmetries

1998-03-12

arxiv.org/abs/hep-ph/9803320v1

Phys.Lett. B431 (1998) 90-97

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 1 figure included in the ps file, uses epsfig.sty

Scientific paper

10.1016/S0370-2693(98)00474-2

Lepton flavour non-conserving processes are examined in the context of unified models with U(1)-family symmetries which reproduce successfully the low-energy hierarchy of the fermion mass spectrum and the Kobayashi - Maskawa mixing. These models usually imply mixing effects in the supersymmetric scalar sector. We construct the fermion and scalar mass matrices in two viable models, and calculate the mixing effects on the $\mu \to e\gamma$, $\mu \to 3 e$ and $\tau \to \mu\gamma$ rare decays. The relevant constraints on the sparticle mass spectrum as well as the role of various MSSM parameters are discussed.

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