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Creators/Authors contains: "Fink, C. W."

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  1. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review Letters)
    We present results of a search for spin-independent dark matter-nucleus interactions in a 1     cm 2 by 1 mm thick (0.233 g) high-resolution silicon athermal phonon detector operated above ground. For interactions in the substrate, this detector achieves an rms baseline energy resolution of 361.5 ( 4 )     m eV (statistical error), the best for any athermal phonon detector to date. With an exposure of 0.233     g × 12 hours, we place the most stringent constraints on dark matter masses between 44 and 87     M eV / c 2 , with the lowest unexplored cross section of 4 × 10 − 32     c m 2 at 87     M eV / c 2 . We employ a conservative salting technique to reach the lowest dark matter mass ever probed via direct detection experiment. This constraint is enabled by two-channel rejection of low energy backgrounds that are coupled to individual sensors. 
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  2. ; ; ; ; ; ; ; ; ; ; et al (, Applied Physics Letters)
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  3. ; ; ; ; ; ; ; ; ; ; et al (, AIP Advances)
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  4. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review D)
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  5. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review Letters)
    We measured the nuclear-recoil ionization yield in silicon with a cryogenic phonon-sensitive gram-scale detector. Neutrons from a monoenergetic beam scatter off of the silicon nuclei at angles corresponding to energy depositions from 4 keV down to 100 eV, the lowest energy probed so far. The results show no sign of an ionization production threshold above 100 eV. These results call for further investigation of the ionization yield theory and a comprehensive determination of the detector response function at energies below the keV scale. 
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  6. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review D)
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  9. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review Letters)
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  10. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review Letters)
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