Light Dark Matter at Neutrino Experiments

Ema, Yohei (DESY, Notkestraße 85, D-22607 Hamburg, Germany) (KEK Theory Center, Tsukuba 305-0801, Japan) ; Sala, Filippo (DESY, Notkestraße 85, D-22607 Hamburg, Germany) ; Sato, Ryosuke (DESY, Notkestraße 85, D-22607 Hamburg, Germany)

08 May 2019

Abstract: Sub-GeV dark matter particles up-scattered by cosmic rays gain enough kinetic energy to pass the thresholds of large volume detectors on Earth. We then use public Super-Kamiokande and MiniBooNE data to derive a novel limit on the scattering cross section of dark matter with electrons that extends down to sub-keV masses, closing a previously allowed wide region of parameter space. We finally discuss search strategies and prospects at existing and planned neutrino facilities.

Published in: Physical Review Letters 122 (2019)
Published by: APS
DOI: 10.1103/PhysRevLett.122.181802
arXiv: 1811.00520
License: CC-BY-4.0

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