Connecting Direct Dark Matter Detection Experiments to Cosmologically Motivated Halo Models

Abstract

Several direct detection experiments, including recently CDMS-II, have reported signals consistent with 5 to 10 GeV dark matter (DM) that appear to be in tension with null results from XENON and LUX experiments; these indicate a careful review of the theoretical basis, including the galactic DM velocity distribution function (VDF). We establish a VDF parameter space from DM-only cosmological simulations and illustrate that seemingly contradictory experimental results can be made consistent within this parameter space. Future experimental limits should be reported after they are marginalized over a range of VDF parameters.

Accepted by PRD, in print; 6 pages, 4 figures; matches the version in print in PRD

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Cited by in corpus (37)

• The Connection between Galaxies and their Dark Matter Halos
• Scalar Simplified Models for Dark Matter
• Low-Mass Dark Matter Search with CDMSlite
• A review of the discovery reach of directional Dark Matter detection
• Astrophysical uncertainties on the local dark matter distribution and direct detection experiments
• NIHAO project II: Halo shape, phase-space density and velocity distribution of dark matter in galaxy formation simulations
• Tests on NaI(Tl) crystals for WIMP search at the Yangyang Underground Laboratory
• Dark Shards: velocity substructure from Gaia and direct searches for dark matter
• Xenophobic Dark Matter
• Dark matter astrophysical uncertainties and the neutrino floor
• Dark matter effective field theory scattering in direct detection experiments
• Directional detection of dark matter in universal bound states
• No $\nu$ floors: Effective field theory treatment of the neutrino background in direct dark matter detection experiments
• Limits on Sub-GeV Dark Matter from the PROSPECT Reactor Antineutrino Experiment
• The highest-speed local dark matter particles come from the Large Magellanic Cloud
• Directional detection of dark matter streams
• Dark Matter vs. Neutrinos: The effect of astrophysical uncertainties and timing information on the neutrino floor
• New Experimental Constraints in a New Landscape for Composite Dark Matter
• Search for Low-Mass Dark Matter with CsI(Tl) Crystal Detectors
• Thermal conduction by dark matter with velocity and momentum-dependent cross-sections
• The Past and Future of Light Dark Matter Direct Detection
• Characterizing Higgs portal dark matter models at the ILC
• Halo-Independent Direct Detection Analyses Without Mass Assumptions
• Implications of the Gaia Sausage for Dark Matter Nuclear Interactions
• Spin-dependent sub-GeV Inelastic Dark Matter-electron scattering and Migdal effect: (I). Velocity Independent Operator
• Halo uncertainties in electron recoil events at direct detection experiments
• Form Factor Effects in the Direct Detection of Isospin-Violating Dark Matter
• Prospects for discovery and spin discrimination of dark matter in Higgs portal DM models and their extensions at 100 TeV $pp$ collider
• Harmonics in the Dark-Matter Sky: Directional Detection in the Fourier-Bessel Basis
• New Limits on Thermally annihilating Dark Matter from Neutrino Telescopes
• Asymmetric Dark Matter
• Stellar convective cores as dark matter probes
• Enhancing Direct Detection of Higgsino Dark Matter
• Discrimination of anisotropy in dark matter velocity distribution with directional detectors
• Bayesian Reconstruction of the Velocity Distribution of Weakly Interacting Massive Particles from Direct Dark Matter Detection Data
• Bayesian analysis of multiple direct detection experiments
• AMIDAS-II: Upgrade of the AMIDAS Package and Website for Direct Dark Matter Detection Experiments and Phenomenology