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.

34 pages, 4 figures

References in corpus (19)

• A Theory of Dark Matter
• Secluded WIMP Dark Matter
• Secluded U(1) below the weak scale
• New Fixed-Target Experiments to Search for Dark Gauge Forces
• The Well-Tempered Neutralino
• Exciting Dark Matter and the INTEGRAL/SPI 511 keV signal
• Non-Abelian Dark Sectors and Their Collider Signatures
• Probing a Secluded U(1) at B-factories
• Probing Dark Forces and Light Hidden Sectors at Low-Energy e+e- Colliders
• Kinetic Mixing as the Origin of Light Dark Scales
• Breaking the Dark Force
• Dark matter and sub-GeV hidden U(1) in GMSB models
• Measuring lifetimes of long-lived charged massive particles stopped in LHC detectors
• Measuring the Dark Force at the LHC
• A Unified Theory of Matter Genesis: Asymmetric Freeze-In
• Natural Implementation of Neutralino Dark Matter
• Displaced Dark Matter at Colliders
• Singlet Portal to the Hidden Sector
• Dark Matter Stabilization Symmetries and Long-Lived Particles at the Large Hadron Collider

Cited by in corpus (12)

• The Dawn of FIMP Dark Matter: A Review of Models and Constraints
• Asymmetric Dark Matter from Leptogenesis
• A Supersymmetric One Higgs Doublet Model
• Revisiting Dark Matter Freeze-in and Freeze-out through Phase-Space Distribution
• 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
• 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
• Distinguishing thermal histories of dark matter from structure formation
• Scalaron-driven Dark Matter during Warm Inflation via UV Freeze--in