Journal
PHYSICAL REVIEW LETTERS
Volume 116, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.116.011301
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Funding
- U.S. National Science Foundation [PHY-1002399]
- ERC [228169]
- Department of Energy [DE-AC02-05CH11231]
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We propose and study a new class of superconducting detectors that are sensitive to O(meV) electron recoils from dark matter- electron scattering. Such devices could detect dark matter as light as the warm dark-matter limit, m(X).greater than or similar to 1 keV. We compute the rate of dark-matter scattering off of free electrons in a (superconducting) metal, including the relevant Pauli blocking factors. We demonstrate that classes of dark matter consistent with terrestrial and cosmological or astrophysical constraints could be detected by such detectors with a moderate size exposure.
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