The Not-So-Well Tempered Neutralino

Abstract

Light electroweakinos, the neutral and charged fermionic supersymmetric partners of the Standard Model $\mathrm{SU}(2)\times \mathrm{U}(1)$ gauge bosons and of the two $\mathrm{SU}(2)$ Higgs doublets, are an important target for searches for new physics with the Large Hadron Collider (LHC). However, if the lightest neutralino is the dark matter, constraints from direct dark matter detection experiments rule out large swaths of the parameter space accessible to the LHC, including in large part the so-called "well-tempered" neutralinos. We focus on the Minimal Supersymmetric Standard Model (MSSM) and explore in detail which regions of parameter space are not excluded by null results from direct dark matter detection, assuming exclusive thermal production of neutralinos in the early universe, and illustrate the complementarity with current and future LHC searches for electroweak gauginos. We consider both bino-Higgsino and bino-wino "not-so-well-tempered" neutralinos, i.e. we include models where the lightest neutralino constitutes only part of the cosmological dark matter, with the consequent suppression of the constraints from direct and indirect dark matter searches.

14 pages, 6 figures; v2: minor modifications, matches published version

References in corpus (16)

• Parton distributions for the LHC
• LHAPDF6: parton density access in the LHC precision era
• Results from a search for dark matter in the complete LUX exposure
• Implications of CTEQ global analysis for collider observables
• Dark Matter Results from First 98.7-day Data of PandaX-II Experiment
• The Well-Tempered Neutralino
• Blind Spots for neutralino Dark Matter in the MSSM with an intermediate m_A
• Neutralino Dark Matter Detection in Split Supersymmetry Scenarios
• Complementarity Between Non-Standard Higgs Searches and Precision Higgs Measurements in the MSSM
• SUSY under siege from direct and indirect WIMP detection experiments
• The Light and Heavy Higgs Interpretation of the MSSM
• Catching sparks from well-forged neutralinos
• Study of MSSM heavy Higgs bosons decaying into charginos and neutralinos
• Four-lepton LHC events from MSSM Higgs boson decays into neutralino and chargino pairs
• Dark Matter in a Constrained $E_6$ Inspired SUSY Model
• Alignment without Decoupling: the Portal to Light Dark Matter in the MSSM

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• The Waning of the WIMP: Endgame?
• Testing electroweak SUSY for muon $g-2$ and dark matter at the LHC and beyond
• MSSM Higgs Benchmark Scenarios for Run 2 and Beyond: the low $\tan \beta$ region
• Electron and Muon Anomalous Magnetic Moments in the Inverse Seesaw Extended NMSSM
• HL-LHC and ILC sensitivities in the hunt for heavy Higgs bosons
• Searching for heavy Higgs in supersymmetric final states at the LHC
• Impact of the Bounds on the Direct Search for Neutralino Dark Matter on Naturalness
• Probing mild-tempered neutralino dark matter through top-squark production at the LHC
• The hMSSM with a Light Gaugino/Higgsino Sector: Implications for Collider and Astroparticle Physics
• Simplified models for resonant neutral scalar production with missing transverse energy final states
• Search for physics beyond the standard model in final states with two or three soft leptons and missing transverse momentum in proton-proton collisions at $\sqrt{s}=13\text{TeV}$
• Searches for compressed SUSY models in leptonic final states with CMS