Probing Light Dark Matter via Evaporation from the Sun

Abstract

Dark matter particles can be captured by the sun with rates that depend on the dark matter mass and the DM-nucleon cross section. However, for masses below $\sim 3.3$ GeV, the captured dark matter particles evaporate, leading to an equilibrium where the rate of captured particles is equal to the rate of evaporating ones. Unlike dark matter particles from the halo, the evaporating dark matter particles have velocities that are not limited to values below the escape velocity of the galaxy. Despite the fact that high velocities are exponentially suppressed, I demonstrate here that current underground detectors have the possibility to probe/constrain low dark matter parameter space by (not)-observing the high energy tail of the evaporating dark matter particles from the sun. I also show that the functional form of the differential rate of counts with respect to the recoil energy in earth based detectors can identify precisely the mass and the cross section of the dark matter particle in this case.

5 pages, 1 figure

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• Annual Modulation of Dark Matter in the Presence of Streams
• Form factors for dark matter capture by the Sun in effective theories
• Dark matter in the solar system I: The distribution function of WIMPs at the Earth from solar capture
• Dark matter in the solar system III: The distribution function of WIMPs at the Earth from gravitational capture

Cited by in corpus (38)

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• Asymmetric Dark Matter in the Sun and the Diphoton Excess at the LHC
• Solar Atmospheric Neutrinos: A New Neutrino Floor for Dark Matter Searches
• Light Dark Matter from Inelastic Cosmic Ray Collisions
• A Search for the Cosmic Ray Boosted Sub-GeV Dark Matter at the PandaX-II Experiment
• Atmospheric Dark Matter and Xenon1T Excess
• Direct Detection Constraints on Blazar-Boosted Dark Matter
• The Sun as a sub-GeV Dark Matter Accelerator
• Solar Reflection of Dark Matter
• Evaporation of dark matter from celestial bodies
• Blazar-Boosted Dark Matter at Super-Kamiokande
• Diurnal Effect of Sub-GeV Dark Matter Boosted by Cosmic Rays
• Solar reflection of light dark matter with heavy mediators
• A tale of dark matter capture, sub-dominant WIMPs, and neutrino observatories
• Cosmic-ray dark matter confronted by constraints on new light mediators
• Constraints on light dark matter particles using white dwarf stars
• Speeding Up Dark Matter With Solar Neutrinos
• Evaporation Barrier for Dark Matter in Celestial Bodies
• Azimuthal asymmetry in cosmic-ray boosted dark matter flux
• Revisiting the Fermionic Dark Matter Absorption on Electron Target
• Long-range self-interacting dark matter in the Sun
• In-medium screening effects for the Galactic halo and solar-reflected dark matter detection in semiconductor targets
• Fuelling the search for light dark matter-electron scattering with spherical proportional counters
• On the Role of Neutrinos Telescopes in the Search for Dark Matter Annihilations in the Sun
• On the evaporation of solar dark matter: spin-independent effective operators
• On asymmetric dark matter constraints from the asteroseismology of a subgiant star
• The leptophilic dark matter in the Sun: the minimum testable mass
• Dark Matter Raining on DUNE and Other Large Volume Detectors
• Prospects of detecting cosmic ray up-scattered dark matter with DUNE
• Super-Kamiokande Strongly Constrains Leptophilic Dark Matter Capture in the Sun
• Search for Solar Boosted Dark Matter Particles at the PandaX-4T Experiment
• Dark matter scattering in astrophysical media: collective effects
• Impact of Evaporation Barriers on Solar-Captured Dark Matter Distribution and Evaporation Mass
• Blazar-Boosted Dark Matter: Novel Signatures via Elastic and Inelastic Scattering