Cosmic ray protons scattering off dark matter produce the Galactic Center gamma-ray excess through inelastic up-scattering followed by decay or direct elastic 2-to-3 photon production.
Light Dark Matter at Neutrino Experiments
5 Pith papers cite this work. Polarity classification is still indexing.
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Pith papers citing it
abstract
Sub-GeV Dark Matter particles upscattered 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.
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hep-ph 5years
2026 5roles
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background 3representative citing papers
The nuclear star cluster around Sgr A* is the dominant source of gravitationally boosted dark matter in the Milky Way, with particles up to ~25,000 km/s that enhance sub-GeV detection prospects independently of the DM model.
Constraints on sub-GeV inelastic dark matter are derived from cosmic-ray cooling in NGC 1068 by including elastic and deep inelastic scattering in a vector-portal model.
Boosted sub-GeV dark matter from atmospheric cosmic ray bremsstrahlung can be probed by direct detection and neutrino experiments, with enhanced sensitivity near vector mediator resonances.