Halo-independent direct detection of momentum-dependent dark matter

Journal Article · Wed Oct 01 00:00:00 EDT 2014 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2014/10/022· OSTI ID:22375836

Cherry, John F. ^[1]; Frandsen, Mads T.

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1. Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

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 ∼< 10 MeV for DM in the 20-1000 GeV range in a halo-independent manner.

• OSTI ID: 22375836
• Journal Information: Journal of Cosmology and Astroparticle Physics, Vol. 2014, Issue 10; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
DETECTION
DISTRIBUTION
GEV RANGE 100-1000
GEV RANGE 10-100
INTERACTION RANGE
INTERACTIONS
MASS
MEV RANGE
NONLUMINOUS MATTER
NUCLEI
SIGNALS
VELOCITY