Kavli Affiliate: Noah Kurinsky
| First 5 Authors: SuperCDMS Collaboration, Musaab Al-Bakry, Imran Alkhatib, Dorian Praia do Amaral, Taylor Aralis
| Summary:
In this paper, we present a re-analysis of SuperCDMS data using a profile
likelihood approach to search for sub-GeV dark matter particles (DM) through
two inelastic scattering channels: bremsstrahlung radiation and the Migdal
effect. By considering possible inelastic scattering channels, experimental
sensitivity can be extended to DM masses that would otherwise be undetectable
through the DM-nucleon elastic scattering channel, given the energy threshold
of current experiments. We exclude DM masses down to $220~textrm{MeV}/c^2$ at
$2.7 times 10^{-30}~textrm{cm}^2$ via the bremsstrahlung channel. The Migdal
channel search excludes DM masses down to $30~textrm{MeV}/c^2$ at $5.0 times
10^{-30}~textrm{cm}^2$.
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