Halo Independent Direct Detection of Momentum-Dependent Dark Matter

Abstract

We show that the momentum dependence of dark matter interactions with nuclei can be probed in direct detection experiments without knowledge of the dark matter velocity distribution. This is one of the few properties of DM microphysics that can be determined with direct detection alone, given a signal of dark matter in multiple direct detection experiments with different targets. Long-range interactions arising from the exchange of a light mediator are one example of momentum-dependent DM. For data produced from the exchange of a massless mediator we find for example that the mediator mass can be constrained to be $\lesssim 10$ MeV for DM in the 20-1000 GeV range in a halo-independent manner.

15 pages, 4 figures; updated to match published version

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Cited by in corpus (14)

• Self-Interacting Dark Matter through the Higgs Portal
• A possible indication of momentum-dependent asymmetric dark matter in the Sun
• Scattering of Dark Particles with Light Mediators
• On the Direct Detection of Dark Matter Annihilation
• Exploring light mediators with low-threshold direct detection experiments
• Understanding WIMP-baryon interactions with direct detection: A Roadmap
• Studying generalised dark matter interactions with extended halo-independent methods
• What is the probability that direct detection experiments have observed Dark Matter?
• Assessing Compatibility of Direct Detection Data: Halo-Independent Global Likelihood Analyses
• Discretising the velocity distribution for directional dark matter experiments
• Halo-Independent Analysis of Direct Dark Matter Detection Through Electron Scattering
• Halo-Independent Dark Matter Electron Scattering Analysis with In-Medium Effects
• A halo-independent lower bound on the dark matter capture rate in the Sun from a direct detection signal
• AMIDAS-II: Upgrade of the AMIDAS Package and Website for Direct Dark Matter Detection Experiments and Phenomenology