Kavli Affiliate: Blas Cabrera
| 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 $220~textrmMeV/c^2$ at $2.7 times 10^-30~textrmcm^2$ via the bremsstrahlung channel. The Migdal channel search excludes DM masses down to $30~textrmMeV/c^2$ at $5.0 times 10^-30~textrmcm^2$.
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