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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, Y-Y;
  • 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;
  • von Krosigk, B;
  • Watkins, SL;
  • Wilson, JS;
  • Wilson, MJ;
  • Winchell, J;
  • Wright, DH;
  • Yellin, S;
  • Young, BA;
  • Zhang, X;
  • Zhao, X
  • et al.
Abstract

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/c^{2}. 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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