Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2000-12-13
Phys.Lett.B502:181-188,2001
Physics
High Energy Physics
High Energy Physics - Phenomenology
Standard LaTeX, 11 pages, 4 figures, one reference added
Scientific paper
10.1016/S0370-2693(01)00157-5
We study top-quark decays in models with light sgoldstinos. The off-diagonal entries in the squark mass matrices can lead to FCNC top two-body decays into sgoldstinos and u(c) quarks. We compute the rates for these decays and discuss the corresponding signatures that could manifest the presence of sgoldstinos in top decays at LHC. We expect that a supersymmetry breaking scale $\sqrt{F}$ up to a scale of order 10 TeV could be probed through this process, for a maximal squark mixing with the third generation. Justified by our preliminary analysis, a thorough study of the corresponding signal versus background and systematics in the LHC environment would be most welcome, in order to accurately assess the potential of this promising process in determining $\sqrt{F}$.
Gorbunov Dmitry
Ilyin Valery
Mele Barbara
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