Origins of Hidden Sector Dark Matter II: Collider Physics

Abstract

We consider a broad class of supersymmetric theories in which dark matter (DM) is the lightest superpartner (LSP) of a hidden sector that couples very weakly to visible sector fields. Portal interactions connecting visible and hidden sectors mediate the decay of the lightest observable superpartner (LOSP) into the LSP, allowing the LHC to function as a spectacular probe of the origin of hidden sector DM. As shown in a companion paper, this general two-sector framework allows only for a handful of DM production mechanisms, each of which maps to a distinctive window in lifetimes and cross-sections for the LOSP. In the present work we perform a systematic collider study of LOSP candidates and portal interactions, and for each case evaluate the prospects for successfully reconstructing the origin of DM at the LHC. If, for instance, DM arises from Freeze-Out and Decay, this may be verified if the LOSP is a bino or right-handed slepton decaying to the LSP through a variety of portal interactions, and with an annihilation cross-section within a narrow range. On the other hand, the Freeze-In mechanism may be verified for a complimentary set of LOSP candidates, and within a narrow range of LOSP lifetimes. In all cases, the LOSP is relatively long-lived on collider time scales, leading to events with displaced vertices. Furthermore, scenarios with a charged or colored LOSP are particularly promising.

arXiv comment34 pages, 4 figures

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Cited by in corpus (27)

• The Dawn of FIMP Dark Matter: A Review of Models and Constraints
• The Four Basic Ways of Creating Dark Matter Through a Portal
• Asymmetric Dark Matter from Leptogenesis
• UltraViolet Freeze-in
• Production Regimes for Self-Interacting Dark Matter
• Collider Searches for Long-Lived Particles Beyond the Standard Model
• $Z_2$ SIMP Dark Matter
• Baryogenesis and Dark Matter from $B$ Mesons
• A Supersymmetric One Higgs Doublet Model
• Closing in on Asymmetric Dark Matter I: Model independent limits for interactions with quarks
• Absorption of Fermionic Dark Matter by Nuclear Targets
• "L=R" - $U(1{)}_R$ as the Origin of Leptonic 'RPV'
• Absorption of Sub-MeV Fermionic Dark Matter by Electron Targets
• Revisiting Dark Matter Freeze-in and Freeze-out through Phase-Space Distribution
• The Cosmological Axino Problem
• Light Dark Matter from Leptogenesis
• Electroweak Baryogenesis and Dark Matter with an approximate R-symmetry
• Making the Universe at 20 MeV
• Self-interacting freeze-in dark matter in a singlet doublet scenario
• Regenerating WIMPs in the light of direct and indirect detection
• Freeze-in Dark Matter from Secret Neutrino Interactions
• LHC prospects for minimal decaying Dark Matter
• Towards Cogenesis via Asymmetric Freeze-in: The $\chi$ Who Came-in from the Cold
• Baryon asymmetry and dark matter from soft leptogenesis
• Visualizing Invisible Dark Matter Annihilation with the CMB and Matter Power Spectrum
• Distinguishing thermal histories of dark matter from structure formation
• Scalaron-driven Dark Matter during Warm Inflation via UV Freeze--in