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Updated: Jan 24, 2026

Light/dark Transition Test for Mice
Published on: November 13, 2006
Novel Direct Detection Constraints on Light Dark Matter
Torsten Bringmann1, Maxim Pospelov2,3
1Department of Physics, University of Oslo, Box 1048, N-0371 Oslo, Norway.
Abstract:
All attempts to directly detect particle dark matter (DM) scattering on nuclei suffer from the partial or total loss of sensitivity for DM masses in the GeV range or below. We derive novel constraints from the inevitable existence of a subdominant, but highly energetic, component of DM generated through collisions with cosmic rays. Subsequent scattering inside conventional DM detectors, as well as neutrino detectors sensitive to nuclear recoils, limits the DM-nucleon scattering cross section to be below 10^{-31} cm^{2} for both spin-independent and spin-dependent scattering of light DM.
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