Impact of slepton generation mixing on the search for sneutrinos

Details Impact of slepton generation mixing on the search for sneutrinos Impact of slepton generation mixing on the search for sneutrinos

2007-09-07

arxiv.org/abs/0709.1157v3

Phys.Lett.B660:228-235,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, 8 figures; close to published version

Scientific paper

10.1016/j.physletb.2007.12.040

We perform a systematic study of sneutrino production and decays in the Minimal Supersymmetric Standard Model (MSSM) with slepton generation mixing. We study both fermionic decays like sneutrino \to l^- chargino^+, nu neutralino and bosonic decays such as sneutrino \to slepton^- H^+, slepton^- W^+. We show that the effect of slepton generation mixing on the sneutrino production cross sections and its decay branching ratios can be quite large in a significant part of the MSSM parameter space despite the very strong experimental limits on lepton flavour violating processes. This could have an important impact on the search for sneutrinos and the determination of the MSSM parameters at future colliders, such as LHC, ILC, CLIC and muon collider.

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