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Blazar-Boosted Dark Matter at Super-Kamiokande
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abstract
Dark matter particles near the center of a blazar, after being accelerated by the elastic collisions with relativistic electrons and protons in the blazar jet, can be energetic enough to trigger detectable signals at terrestrial detectors. In this work, focusing on the blazars TXS 0506+056 and BL Lacertae, we derive novel limits on the cross section of the elastic scattering between dark matter and electrons by means of the available Super-Kamiokande data. Thanks to the large blazar-boosted dark matter flux, the limit on the dark matter-electron scattering cross section for dark matter masses below 100 MeV can be as low as $\sim10^{-38}~\text{cm}^2$, which is orders of magnitude stronger than the analogous results from galactic cosmic rays.
Forward citations
Cited by 6 Pith papers
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Inelastic Scattering Effects on Attenuation of Boosted Dark Matter
Resonant excitation of nucleons into Δ(1232) during Earth passage is a non-negligible attenuation channel for boosted dark matter at E_χ ≈ 1–2 GeV, lowering the PandaX-4T upper bound on σ̄_n in the heavy-mediator regime.
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Dark Matter Heating of Compact Stars Beyond Capture: A Relativistic Framework for Energy Deposition by Particle Beams
A new relativistic formalism computes capture and energy deposition of directed particle beams in compact stars, applied to blazar-boosted dark matter heating of white dwarfs and neutron stars.
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Constraints on Sub-MeV Dark Matter from Solar Reflection with DAMIC-M
With ~1.3 kg-day of DAMIC-M skipper-CCD data, solar-reflected dark matter yields 90% CL limits on the DM-electron cross section reaching 3.16e-37 cm2 at 0.1 MeV for an ultralight mediator.
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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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Cosmic-ray boosted inelastic dark matter from neutrino-emitting active galactic nuclei
A cosmic-ray boosted, inelastic dark matter flux from two neutrino-emitting AGNs gives new Super-K and XENONnT limits that reach part of the thermal freeze-out target for sub-GeV dark matter.
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Sub-GeV Dark Matter Under Pressure from Direct Detection
PandaX-4T S2-only data yields world-leading sub-GeV dark matter-electron scattering limits for heavy mediators in the 20-200 MeV range, although the result largely overlaps with the collaboration's own just-released analysis.
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