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.
Bounds on Cosmic Ray-Boosted Dark Matter in Simplified Models and its Corresponding Neutrino-Floor
5 Pith papers cite this work. Polarity classification is still indexing.
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abstract
We study direct detection bounds on cosmic ray-upscattered dark matter in simplified models including light mediators. We find that the energy dependence in the scattering cross section is significant, and produces stronger bounds than previously found (which assumed constant cross sections) by many orders of magnitude at low DM mass. Finally, we compute the "neutrino-floor" that will limit future direct detection searches for cosmic ray-upscattered dark matter. While we focus on vector interactions for illustration, we emphasize that the energy dependence is critical in determining accurate bounds on any particle physics model of Dark Matter-CR interactions from experimental data on this scenario.
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hep-ph 5years
2026 5representative citing papers
Paleo-detectors can achieve high sensitivity to sub-GeV dark matter boosted by cosmic rays and supernovae, covering previously inaccessible parameter space with orders of magnitude better reach than current experiments.
SNO data combined with CANDU reactor production excludes spin-dependent χ-nucleon cross sections above ~10^{-33} cm² for m_χ ≤ 1.5 MeV.
ANTARES Galactic Ridge neutrino observations constrain DM-nucleon elastic scattering cross sections down to keV-scale DM masses via cosmic ray–dark matter deep inelastic scattering.
Hawking-evaporating primordial black holes could boost light dark matter to detectable energies, and the new electron-recoil constraints from XENONnT, LZ, and PandaX-4T tighten limits on its mass and cross-section.
citing papers explorer
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Producing the GeV Galactic Center Excess via Cosmic Ray-Dark Matter Scattering
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.
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Probing Cosmic-Ray-Boosted and Supernova-Sourced Sub-GeV Dark Matter with Paleo-Detectors
Paleo-detectors can achieve high sensitivity to sub-GeV dark matter boosted by cosmic rays and supernovae, covering previously inaccessible parameter space with orders of magnitude better reach than current experiments.
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Novel Constraints on Spin-Dependent Light Dark Matter Scattering
SNO data combined with CANDU reactor production excludes spin-dependent χ-nucleon cross sections above ~10^{-33} cm² for m_χ ≤ 1.5 MeV.
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Galactic Center Neutrinos from Cosmic Ray-Dark Matter Interactions
ANTARES Galactic Ridge neutrino observations constrain DM-nucleon elastic scattering cross sections down to keV-scale DM masses via cosmic ray–dark matter deep inelastic scattering.
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Primordial black holes as cosmic accelerators of light dark matter: Novel direct detection constraints
Hawking-evaporating primordial black holes could boost light dark matter to detectable energies, and the new electron-recoil constraints from XENONnT, LZ, and PandaX-4T tighten limits on its mass and cross-section.