Two natural scenarios for dark matter particles coexisting with supersymmetry

Abstract

We describe two natural scenarios in which both dark matter WIMPs (weakly interacting massive particles) and a variety of supersymmetric partners should be discovered in the foreseeable future. In the first scenario, the WIMPs are neutralinos, but they are only one component of the dark matter, which is dominantly composed of other relic particles such as axions. (This is the multicomponent model of Baer, Barger, Sengupta, and Tata.) In the second scenario, the WIMPs result from an extended Higgs sector and may be the only dark matter component. In either scenario, both the dark matter WIMP and a plethora of other neutral and charged particles await discovery at many experimental facilities. The new particles in the second scenario have far weaker cross-sections for direct and indirect detection via their gauge interactions, which are either momentum-dependent or second-order. However, as we point out here, they should have much stronger interactions via the Higgs. We estimate that their interactions with fermions will then be comparable to (although not equal to) those of neutralinos with a corresponding Higgs interaction. It follows that these newly proposed dark matter particles should be within reach of emerging and proposed facilities for direct, indirect, and collider-based detection.

arXiv comment7 pages, to be published in Modern Physics Letters A

References in corpus (14)

• Particle Dark Matter: Evidence, Candidates and Constraints
• Supersymmetric Dark Matter
• Dark Matter Search Results from a One Tonne$\times$Year Exposure of XENON1T
• WIMP dark matter candidates and searches - current status and future prospects
• Dark matter direct-detection experiments
• Galactic Searches for Dark Matter
• The moment of truth for WIMP Dark Matter
• SUSY models under siege: LHC constraints and electroweak fine-tuning
• Is natural higgsino-only dark matter excluded?
• Supersymmetry at a 28 TeV hadron collider: HE-LHC
• What hadron collider is required to discover or falsify natural supersymmetry?
• Dark matter candidate with well-defined mass and couplings
• Saving supersymmetry and dark matter WIMPs -- a new kind of dark matter candidate with well-defined mass and couplings
• Searches for strong production of supersymmetry at ATLAS and CMS

Cited by in corpus (4)

• The sounds of science: a symphony for many instruments and voices
• Search for inelastic WIMP-iodine scattering with COSINE-100
• Experimental signatures of a new dark matter WIMP
• Gauge couplings in a multicomponent dark matter scenario