Natural NMSSM with a Light Singlet Higgs and Singlino LSP

Abstract

Supersymmetry (SUSY) is an attractive extension of the Standard Model (SM) of particle physics which solves the SM hierarchy problem. Motivated by the theoretical $\mu$-term problem of the Minimal Supersymmetric Model (MSSM), the Next-to MSSM (NMSSM) can also account for experimental deviations from the SM like the anomalous muon magnetic moment and the dark matter relic density. Natural SUSY, motivated by naturalness considerations, exhibits small fine tuning and a characteristic phenomenology with light higgsinos, stops and gluinos. We describe a scan in NMSSM parameter space motivated by Natural SUSY and guided by the phenomenology of an NMSSM with a slightly broken Peccei-Quinn symmetry and a lightly coupled singlet. We identify a scenario which survives experimental constraints with a light singlet Higgs and a singlino lightest SUSY particle. We then discuss how the scenario is not presently excluded by searches at the Large Hadron Collider (LHC) and which channels are promising for discovery at the LHC and International Linear Collider.

Added results of checks on LHC Run 1 exclusion with CheckMATE

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Cited by in corpus (22)

• The diphoton signal of the light Higgs boson in Natural NMSSM
• Natural NMSSM after LHC Run I and the Higgsino dominated dark matter scenario
• The higgsino-singlino sector of the NMSSM: Combined constraints from dark matter and the LHC
• The semi-constrained NMSSM in light of muon g-2, LHC, and dark matter constraints
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• Current Status of Natural NMSSM in Light of LHC 13TeV Data and XENON-1T Results
• Light Singlino Dark Matter at the LHC
• Searching for Singlino-Higgsino Dark Matter in the NMSSM
• Can we discover a light singlet-like NMSSM Higgs boson at the LHC?
• Investigating light NMSSM pseudoscalar states with boosted ditau tagging
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• A relatively light, highly bino-like dark matter in the $Z_3$-symmetric NMSSM and recent LHC searches
• Naughty or Nice? The Role of the `N' in the Natural NMSSM for the LHC
• An effective scanning method of the NMSSM parameter space
• Sbottoms of Natural NMSSM at the LHC
• Impact of LHC Higgs couplings measurements on bosonic decays of the neutral Higgs sector in the scNMSSM
• Model Characterization and Dark Matter in the Secluded $U(1{)}^{\prime }$ Model
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