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$\nu$ limits from Super-Kamiokande on dark matter-electron scattering in the Sun
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abstract
Particle dark matter scattering on electrons in the Sun may gravitationally capture and self-annihilate inside it to neutrinos and anti-neutrinos, or other final states that in turn decay to them. Using up-to-date measurements by Super-Kamiokande of the fluxes of atmospheric electron-type and muon-type neutrinos, we set the most stringent limits on the electron scattering cross sections of dark matter down to about $10^{-40}-10^{-39}$ cm$^2$ over a mass range of 4$-$200 GeV. These outdo direct searches for dark matter-electron scattering and previously set limits at IceCube. We also derive corresponding reaches at Hyper-K, and show that atmospheric neutrino observations restricted to the direction of the Sun can improve sensitivities.
Forward citations
Cited by 3 Pith papers
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Complementary Planetary Spectroscopy Probes of Dark Matter
Dark matter annihilation energy deposited in planetary atmospheres and interiors, compared against existing UV airglow and heat flow measurements, yields new sub-GeV scattering constraints and long-lived mediator reach.
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Search for High-Energy Neutrinos From the Sun Using Ten Years of IceCube Data
No dark matter neutrinos from the Sun appear in ten years of IceCube data, so the collaboration sets new world-leading upper limits on high-mass spin-dependent dark matter-nucleon scattering and on solar atmospheric n...
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Dark Secrets of Baryons: Illuminating Dark Matter-Baryon Interactions with JWST
JWST ultraviolet luminosity function data currently provide the strongest upper limits on velocity-dependent (∝v^{-2}) dark matter–proton scattering for sub-GeV dark matter.
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