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Production of singlino dominated neutralinos in extended supersymmetric models
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Neutralinos with a large singlino component may appear in extended supersymmetric models with additional singlet Higgs fields. Since singlinos do not couple to (s)fermions and gauge bosons, the cross sections for the production of singlino dominated neutralinos are generally small. Within the framework of the Next-to-Minimal Supersymmetric Standard Model (NMSSM) and an E_6 inspired model we study neutralino production e^+ e^- --> neutralino_1 neutralino_2 (neutralino_1,2 neutralino_3) with a singlino dominated neutralino_2 (neutralino_3). It is shown that neutralinos with a singlino contribution up to 99 % can be produced with a cross section larger than 1 fb and may therefore be detected at a high luminosity e^+ e^- linear collider even if they are not the LSP.
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Cited by 1 Pith paper
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Shedding Light on Dark Matter at the LHC with Machine Learning
A machine-learned LHC analysis projects 5-sigma sensitivity to singlino-dominated NMSSM dark matter via radiative higgsino decays to photons, covering higgsino masses up to 225 GeV.
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