• Corpus ID: 230433854

Resonant Scattering between Dark Matter and Baryons: Revised Direct Detection and CMB Limits

@inproceedings{Xu2021ResonantSB,
  title={Resonant Scattering between Dark Matter and Baryons: Revised Direct Detection and CMB Limits},
  author={Xingchen Xu and Glennys R. Farrar},
  year={2021}
}
Traditional dark matter (DM) models, eg. WIMPs, assume dark matter is weakly coupled to the standard model so that elastic scattering between DM and baryons can be described perturbatively by Born approximation. Most direct detection experiments are analyzed according to that assumption. We show that when the interaction is attractive and strong, DM-nucleus scattering exhibits rich resonant behavior with a highly non-trivial dependence on atomic mass. The scattering is non-perturbative in much… 
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