Constraints on leptophilic light dark matter from internal heat flux of Earth

Abstract

Dark Matter in Earth intersecting orbits can scatter off the electrons and lose energy, and finally be gravitationally bound to Earth. Eventually they lose enough energy and accumulate at the core. It is assumed that DM annihilates/decays predominantly into Standard Model particles inside Earth. The heat flux from these processes is compared with the experimentally measured value of internal heat flux of Earth which is 44 TW. Assuming steady state between capture and annihilation/decay, we put constraints on the scattering cross section of DM with electrons as a function of their mass. For low mass regions ($<10^{-2}$GeV), these constraints on leptophilic DM are better than ones obtained from direct-detection experiments.

Journal version to appear in Phys Rev D

References in corpus (8)

• First Direct Detection Limits on sub-GeV Dark Matter from XENON10
• The WIMPless Miracle: Dark Matter Particles without Weak-scale Masses or Weak Interactions
• Dark Matter: A Primer
• Semiconductor Probes of Light Dark Matter
• Towards Closing the Window on Strongly Interacting Dark Matter: Far-Reaching Constraints from Earth's Heat Flow
• Uranus's anomalously low excess heat constrains strongly interacting dark matter
• Planet-bound dark matter and the internal heat of Uranus, Neptune, and hot-Jupiter exoplanets
• Closing the Window on Strongly Interacting Dark Matter

Cited by in corpus (9)

• Detection of sub-MeV Dark Matter with Three-Dimensional Dirac Materials
• Capture of Leptophilic Dark Matter in Neutron Stars
• Exoplanets as Sub-GeV Dark Matter Detectors
• Accelerating Composite Dark Matter Discovery with Nuclear Recoils and the Migdal Effect
• Model-independent Astrophysical Constraints on Leptophilic Dark Matter in the Framework of Tsallis Statistics
• EFT analysis of leptophilic dark matter at future electron-positron colliders in the mono-photon and mono-$Z$ channels
• Optimal Celestial Bodies for Dark Matter Detection
• Neutrinos from the Sun can discover dark matter-electron scattering
• Probing Superheavy Dark Matter with Exoplanets