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Cosmic-ray upscattered inelastic dark matter

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 نشر من قبل Jayden Newstead
 تاريخ النشر 2021
  مجال البحث فيزياء
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Light non-relativistic components of the galactic dark matter halo elude direct detection constraints because they lack the kinetic energy to create an observable recoil. However, cosmic-rays can upscatter dark matter to significant energies, giving direct detection experiments access to previously unreachable regions of parameter-space at very low dark matter mass. In this work we extend the cosmic-ray dark matter formalism to models of inelastic dark matter and show that previously inaccessible regions of the mass-splitting parameter space can be probed. Conventional direct detection of non-relativistic halo dark matter is limited to mass splittings of $deltasim10~mathrm{keV}$ and is highly mass dependent. We find that including the effect of cosmic-ray upscattering can extend the reach to mass splittings of $deltasim100~mathrm{MeV}$ and maintain that reach at much lower dark matter mass.



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