Accelerated light dark matter

Abstract

Light dark matter particles (MeV range) carry too little energy to be seen with current dark matter detectors. Considerable efforts are being spent on lowering the energy thresholds for detection. I will show that these models can be successfully constrained using a double collision scheme. First collision with e.g. solar electrons/cosmic ray particles/accelerator beam can bring the dark matter to detectable energies, with subsequent scattering of accelerated dark matter leaving detectable energy deposition in large neutrino and/or dark matter detectors. This scheme currently provides leading sensitivity to light dark matter in a wide range of masses and cross sections.