Directional Detection of Light Dark Matter in Superconductors
  Superconducting detectors have been proposed as outstanding targets for the
direct detection of light dark matter scattering at masses as low as a keV. We
study the prospects for directional detection of dark matter in isotropic
superconducting targets from the angular distribution of excitations produced
in the material. We find that dark matter scattering produces initial
excitations with an anisotropic distribution, and further show that this
directional information can be preserved as the initial excitations relax. Our
results demonstrate that directional detection is possible for a wide range of
dark matter masses, and pave the way for light dark matter discovery with bulk
superconducting targets.
