The Neutralino Sector of the Next-to-Minimal Supersymmetric Standard Model

Abstract

The Next-to-Minimal Supersymmetric Standard Model (NMSSM) includes a Higgs iso-singlet superfield in addition to the two Higgs doublet superfields of the minimal extension. If the Higgs fields remain weakly coupled up to the GUT scale, as naturally motivated by the concept of supersymmetry, the mixing between singlet and doublet fields is small and can be treated perturbatively. The mass spectrum and mixing matrix of the neutralino sector can be analyzed analytically and the structure of this 5-state system is under good theoretical control. We also determine decay modes and production channels in sfermion cascade decays to these particles at the LHC and pair production in e+e- colliders.

arXiv comment27 pages, 8 figures

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• Higgs Sector in Extensions of the MSSM
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• Lightest Neutralino in Extensions of the MSSM
• Recoil Detection of the Lightest Neutralino in MSSM Singlet Extensions
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• Light NMSSM Higgs bosons in SUSY cascade decays at the LHC
• Invisible Higgs Decays to Hooperons in the NMSSM
• Collider signatures of a light NMSSM pseudoscalar in neutralino decays in the light of LHC results
• Light Singlino Dark Matter at the LHC
• Multiple Higgs-Portal and Gauge-Kinetic Mixings
• Diphoton Signal of light pseudoscalar in NMSSM at the LHC
• Associated production of a light pseudoscalar Higgs boson with a chargino pair in the NMSSM
• Electroweak Supersymmetry (EWSUSY) in the NMSSM
• Nonminimal supersymmetric standard model with lepton number violation
• Probing the NMSSM via Higgs boson signatures from stop cascade decays at the LHC
• Invisible decays of the lightest Higgs boson in supersymmetric models
• A relatively light, highly bino-like dark matter in the $Z_3$-symmetric NMSSM and recent LHC searches
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• Spontaneous R-parity violating type III seesaw
• LHC/ILC Interplay in SUSY Searches
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• Complementarity of LHC and ILC
• Complementarity of the CERN Large Hadron Collider and the $e^{+}{e}^{-}$ International Linear Collider
• The Higgs and Neutralino Sectors of the Next-to-Minimal Supersymmetric Standard Model