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First Dark Matter Constraints from a SuperCDMS Single-Charge Sensitive Detector

  • Author(s): Agnese, R
  • Aralis, T
  • Aramaki, T
  • Arnquist, IJ
  • Azadbakht, E
  • Baker, W
  • Banik, S
  • Barker, D
  • Bauer, DA
  • Binder, T
  • Bowles, MA
  • Brink, PL
  • Bunker, R
  • Cabrera, B
  • Calkins, R
  • Cartaro, C
  • Cerdeño, DG
  • Chang, YY
  • Cooley, J
  • Cornell, B
  • Cushman, P
  • Di Stefano, PCF
  • Doughty, T
  • Fascione, E
  • Figueroa-Feliciano, E
  • Fink, C
  • Fritts, M
  • Gerbier, G
  • Germond, R
  • Ghaith, M
  • Golwala, SR
  • Harris, HR
  • Hong, Z
  • Hoppe, EW
  • Hsu, L
  • Huber, ME
  • Iyer, V
  • Jardin, D
  • Jena, C
  • Kelsey, MH
  • Kennedy, A
  • Kubik, A
  • Kurinsky, NA
  • Lawrence, RE
  • Leyva, JV
  • Loer, B
  • Lopez Asamar, E
  • Lukens, P
  • Macdonell, D
  • Mahapatra, R
  • Mandic, V
  • Mast, N
  • Miller, EH
  • Mirabolfathi, N
  • Mohanty, B
  • Morales Mendoza, JD
  • Nelson, J
  • Orrell, JL
  • Oser, SM
  • Page, WA
  • Partridge, R
  • Pepin, M
  • Phipps, A
  • Ponce, F
  • Poudel, S
  • Pyle, M
  • Qiu, H
  • Rau, W
  • Reisetter, A
  • Reynolds, T
  • Roberts, A
  • Robinson, AE
  • Rogers, HE
  • Romani, RK
  • Saab, T
  • Sadoulet, B
  • Sander, J
  • Scarff, A
  • Schnee, RW
  • Scorza, S
  • Senapati, K
  • Serfass, B
  • So, J
  • Speller, D
  • Stanford, C
  • Stein, M
  • Street, J
  • Tanaka, HA
  • Toback, D
  • Underwood, R
  • Villano, AN
  • et al.
Abstract

© 2018 authors. Published by the American Physical Society. We present the first limits on inelastic electron-scattering dark matter and dark photon absorption using a prototype SuperCDMS detector having a charge resolution of 0.1 electron-hole pairs (CDMS HVeV, a 0.93 g CDMS high-voltage device). These electron-recoil limits significantly improve experimental constraints on dark matter particles with masses as low as 1 MeV/c2. We demonstrate a sensitivity to dark photons competitive with other leading approaches but using substantially less exposure (0.49 g d). These results demonstrate the scientific potential of phonon-mediated semiconductor detectors that are sensitive to single electronic excitations.

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