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Neutrino backgrounds to dark matter searches

Jocelyn Monroe*

Peter Fisher

  • Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

  • Laboratory for Nuclear Science, MIT Kavli Institute for Astrophysics and Space Research, Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

  • *jmonroe@mit.edu
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Phys. Rev. D 76, 033007 – Published 30 August, 2007

DOI: https://doi.org/10.1103/PhysRevD.76.033007

Abstract

Neutrino coherent scattering cross sections can be as large as 10−39  cm2, while current dark matter experiments have sensitivities to WIMP coherent scattering cross sections 5 orders of magnitude smaller; future experiments plan to have sensitivities to cross sections as small as 10−48  cm2. With large target masses and few keV recoil energy detection thresholds, neutral current coherent scattering of solar neutrinos becomes an irreducible background in dark matter searches. In the current zero-background analysis paradigm, neutrino coherent scattering will limit the achievable sensitivity to dark matter scattering cross sections, at the level of 10−46  cm2.

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Phys. Rev. D 76, 033007– Published 30 August, 2007
  • Received 20 June 2007

© 2007 American Physical Society

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