Detecting Sub-GeV Dark Matter with Superconducting Nanowires.

  title={Detecting Sub-GeV Dark Matter with Superconducting Nanowires.},
  author={Yonit Hochberg and Ilya Charaev and Sae Woo Nam and Varun B. Verma and Marco Colangelo and Karl K. Berggren},
  journal={Physical review letters},
  volume={123 15},
We propose the use of superconducting nanowires as both target and sensor for direct detection of sub-GeV dark matter. With excellent sensitivity to small energy deposits on electrons and demonstrated low dark counts, such devices could be used to probe electron recoils from dark matter scattering and absorption processes. We demonstrate the feasibility of this idea using measurements of an existing fabricated tungsten-silicide nanowire prototype with 0.8-eV energy threshold and 4.3 ng with 10… 

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