Report of the Topical Group on Particle Dark Matter for Snowmass 2021

Abstract

This report summarizes the findings of the CF1 Topical Subgroup to Snowmass 2021, which was focused on particle dark matter. One of the most important scientific goals of the next decade is to reveal the nature of dark matter (DM). To accomplish this goal, we must delve deep, to cover high priority targets including weakly-interacting massive particles (WIMPs), and search wide, to explore as much motivated DM parameter space as possible. A diverse, continuous portfolio of experiments at large, medium, and small scales that includes both direct and indirect detection techniques maximizes the probability of discovering particle DM. Detailed calibrations and modeling of signal and background processes are required to make a convincing discovery. In the event that a candidate particle is found through different means, for example at a particle collider, the program described in this report is also essential to show that it is consistent with the actual cosmological DM. The US has a leading role in both direct and indirect detection dark matter experiments -- to maintain this leading role, it is imperative to continue funding major experiments and support a robust R\&D program.

Submitted 30 pages, 11 figures, many references, Report of the CF1 Topical Group for Snowmass 2021

Cited by in corpus (11)

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• Confronting Dark Matter Freeze-In during Reheating with Constraints from Inflation
• LiteBIRD and CMB-S4 Sensitivities to Reheating in Plateau Models of Inflation
• Neutrinos from Earth-Bound Dark Matter Annihilation
• Progress in End-to-End Optimization of Detectors for Fundamental Physics with Differentiable Programming
• Summary of the trigger systems of the Large Hadron Collider experiments ALICE, ATLAS, CMS and LHCb
• Exploring Faraday rotation signatures and population bounds for primordial magnetic black holes
• A Global Fit of Non-Relativistic Effective Dark Matter Operators Including Solar Neutrinos
• Chiral dark matter and radiative neutrino masses from gauged U(1) symmetry
• Design Challenges for a Future Liquid Xenon Observatory
• HydroX, a light dark matter search with hydrogen-doped liquid xenon time projection chambers