Directional Dark Matter Detection Beyond the Neutrino Bound
  Coherent scattering of solar, atmospheric and diffuse supernovae neutrinos
creates an irreducible background for direct dark matter experiments with
sensitivities to WIMP-nucleon spin-independent scattering cross-sections of
10^(-46)-10^(-48) cm^2, depending on the WIMP mass. Even if one could eliminate
all other backgrounds, this "neutrino floor" will limit future experiments with
projected sensitivities to cross-sections as small as 10^(-48) cm^2.
Direction-sensitive detectors have the potential to study dark matter beyond
the neutrino bound by fitting event distributions in multiple dimensions:
recoil kinetic energy, recoil track angle with respect to the sun, and event
time. This work quantitatively explores the impact of direction-sensitivity on
the neutrino bound in dark matter direct detection.
