Top flavour violating decays in general supersymmetric models

Details Top flavour violating decays in general supersymmetric models Top flavour violating decays in general supersymmetric models

2004-06-23

arxiv.org/abs/hep-ph/0406264v1

Phys.Lett. B599 (2004) 62-74

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, 3 figures

Scientific paper

10.1016/j.physletb.2004.08.025

We analyse the top flavour violating decays in general supersymmetric model using the mass insertion approximation. In particular, we discuss the impact of a light right-handed top-squark and large mixing between the first or second and third generation of up-squarks on processes as t -> q gamma,g . We also take into account the relevant experimental constraints from B-physics and the requirements for a successfull electroweak baryogenesis on squark mixings. We show that for general large mixings in squarks mass matrix, the branching ratio of the t -> q gamma, g (q=u,c) can be as large as 10^{-6}.

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