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Award ID contains: 2411598

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  1. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review D)
    This article presents constraints on dark-matter-electron interactions obtained from the first underground data-taking campaign with multiple SuperCDMS HVeV detectors operated in the same housing. An exposure of 7.63     g − days is used to set upper limits on the dark-matter-electron scattering cross section for dark matter masses between 0.5 and 1000     MeV / c 2 , as well as upper limits on dark photon kinetic mixing and axionlike particle axioelectric coupling for masses between 1.2 and 23.3     eV / c 2 . Compared to an earlier HVeV search, sensitivity was improved as a result of an increased overburden of 225 meters of water equivalent, an anticoincidence event selection, and better pile-up rejection. In the case of dark-matter-electron scattering via a heavy mediator, an improvement by up to a factor of 25 in cross section sensitivity was achieved. Published by the American Physical Society2025 
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    Free, publicly-accessible full text available January 1, 2026
  2. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review D)