Natural NMSSM after LHC Run I and the Higgsino dominated dark matter scenario

Abstract

We investigate the impact of the direct searches for SUSY at LHC Run I on the naturalness of the Next-to-Minimal Supersymmetric Standard Model (NMSSM). For this end, we first scan the vast parameter space of the NMSSM to get the region where the fine tuning measures ${\Delta }_Z$ and ${\Delta }_h$ at the electroweak scale are less than about 50, then we implement by simulations the constraints of the direct searches on the parameter points in the region. Our results indicate that although the direct search experiments are effective in excluding the points, the parameter intervals for the region and also the minimum reaches of ${\Delta }_Z$ and ${\Delta }_h$ are scarcely changed by the constraints, which implies that the fine tuning of the NMSSM does not get worse after LHC Run I. Moreover, based on the results we propose a natural NMSSM scenario where the lightest neutralino ${\tilde{\chi }}_1^0$ as the dark matter (DM) candidate is Higgsino-dominated. In this scenario, ${\Delta }_Z$ and ${\Delta }_h$ may be as low as 2 without conflicting with any experimental constraints, and intriguingly ${\tilde{\chi }}_1^0$ can easily reach the measured DM relic density due to its significant Singlino component. We exhibit the features of the scenario which distinguish it from the other natural SUSY scenario, including the properties of its neutralino-chargino sector and scalar top quark sector. We emphasize that the scenario can be tested either through searching for $3l+E_T^{miss}$ signal at 14 TeV LHC or through future DM direct detection experiments.

26 pages, 5 figures

References in corpus (24)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• PYTHIA 6.4 Physics and Manual
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• Indirect search for dark matter with micrOMEGAs2.4
• Search for direct production of charginos, neutralinos and sleptons in final states with two leptons and missing transverse momentum in pp collisions at sqrt(s) = 8 TeV with the ATLAS detector
• Searches for electroweak production of charginos, neutralinos, and sleptons decaying to leptons and W, Z, and Higgs bosons in pp collisions at 8 TeV
• Search for top squark pair production in final states with one isolated lepton, jets, and missing transverse momentum in $\sqrt{s}=$ 8 TeV pp collisions with the ATLAS detector
• Stop the Top Background of the Stop Search
• The 125 GeV Higgs in the NMSSM in light of LHC results and astrophysics constraints
• On the two-loop corrections to the Higgs masses in the NMSSM
• Search for direct top squark pair production in events with a Z boson, b-jets and missing transverse momentum in sqrt(s)=8 TeV pp collisions with the ATLAS detector
• Scalar strangeness content of the nucleon and baryon sigma terms
• NMSSM with a singlino LSP: possible challenges for searches for supersymmetry at the LHC
• SUSY explanation of the Fermi Galactic Center Excess and its test at LHC Run-II
• Multi-channel assault on natural supersymmetry at the high luminosity LHC
• The semi-constrained NMSSM satisfying bounds from the LHC, LUX and Planck
• NMSSM explanations of the Galactic center gamma ray excess and promising LHC searches
• The interpretation for Galactic Center Excess and Electroweak Phase Transition in the NMSSM
• Searching for Singlino-Higgsino Dark Matter in the NMSSM
• The Higgsino-Singlino World at the Large Hadron Collider
• Light Higgsino Decays as a Probe of the NMSSM
• Probing the NMSSM via Higgs boson signatures from stop cascade decays at the LHC
• Light Sparticles from a Light Singlet in Gauge Mediation

Cited by in corpus (33)

• The diphoton signal of the light Higgs boson in Natural NMSSM
• The 96 GeV Diphoton Excess in the Seesaw Extensions of the Natural NMSSM
• Higgs Portals for Thermal Dark Matter - EFT Perspectives and the NMSSM -
• Revisiting fine-tuning in the MSSM
• Is well-tempered neutralino in MSSM still alive after 2016 LUX results?
• 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
• Present Status and Future Tests of the Higgsino-Singlino Sector in the NMSSM
• Current Status of Natural NMSSM in Light of LHC 13TeV Data and XENON-1T Results
• Suppressing the Scattering of WIMP DM with Nucleons in Supersymmetric Theories
• Strong constraints of LUX-2016 results on the natural NMSSM
• Nucleation is More than Critical -- A Case Study of the Electroweak Phase Transition in the NMSSM
• Anomalous Muon Magnetic Moment in the Inverse Seesaw Extended Next-to-Minimal Supersymmetric Standard Model
• A Bayesian analysis of sneutrino DM in the NMSSM with Type-I seesaw mechanism
• The current status of fine-tuning in supersymmetry
• Confronting the neutralino and chargino sector of the NMSSM to the multi-lepton searches at the LHC
• Singlino-dominated dark matter in $Z_3$-NMSSM
• Impact of recent $(g-2{)}_{\mu }$ measurement on the light CP-even Higgs scenario in general Next-to-Minimal Supersymmetric Standard Model
• Light neutral CP-even Higgs boson within Next-to-Minimal Supersymmetric Standard model (NMSSM) at the Large Hadron electron Collider (LHeC)
• Sneutrino DM in the NMSSM with inverse seesaw mechanism
• Electroweak corrections to the fermionic decays of heavy Higgs states
• Spin-dependent constraints on blind spots for thermal singlino-higgsino dark matter with(out) light singlets
• Pair production of Higgs boson in NMSSM at the LHC with next-to-lightest CP-even Higgs boson being SM-like
• Impact of leptonic unitarity and dark matter direct detection experiments on the NMSSM with inverse seesaw mechanism
• Higgsino Asymmetry and Direct-Detection Constraints of Light Dark Matter in the NMSSM with Non-Universal Higgs Masses
• Dominant production of heavier Higgs bosons through vector boson fusion in NMSSM
• Investigating higgsino dark matter in the semi-constrained NMSSM
• Charged Higgs bosons in the NMSSM under current LHC constraints
• Status of ${\mathbb{Z}}_3$-NMSSM featuring a light bino-dominated LSP and a light singlet-like scalar under the LZ Experiment
• Genuine NMSSM deviations in the 125 GeV Higgs boson decays
• Constraining the light Higgs bosons in the GNMSSM with recent Higgs data
• $B_{s(d)}-{\bar{B}}_{s(d)}$ Mixing and $B_s\to {\mu }^{+}{\mu }^{-}$ Decay in the NMSSM with the Flavour Expansion Theorem
• Shedding Light on Dark Matter at the LHC with Machine Learning