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Search for low-mass weakly interacting massive particles with SuperCDMS.

  • Author(s): Agnese, R;
  • Anderson, AJ;
  • Asai, M;
  • Balakishiyeva, D;
  • Basu Thakur, R;
  • Bauer, DA;
  • Beaty, J;
  • Billard, J;
  • Borgland, A;
  • Bowles, MA;
  • Brandt, D;
  • Brink, PL;
  • Bunker, R;
  • Cabrera, B;
  • Caldwell, DO;
  • Cerdeno, DG;
  • Chagani, H;
  • Chen, Y;
  • Cherry, M;
  • Cooley, J;
  • Cornell, B;
  • Crewdson, CH;
  • Cushman, P;
  • Daal, M;
  • DeVaney, D;
  • Di Stefano, PCF;
  • Silva, E Do Couto E;
  • Doughty, T;
  • Esteban, L;
  • Fallows, S;
  • Figueroa-Feliciano, E;
  • Godfrey, GL;
  • Golwala, SR;
  • Hall, J;
  • Hansen, S;
  • Harris, HR;
  • Hertel, SA;
  • Hines, BA;
  • Hofer, T;
  • Holmgren, D;
  • Hsu, L;
  • Huber, ME;
  • Jastram, A;
  • Kamaev, O;
  • Kara, B;
  • Kelsey, MH;
  • Kenany, S;
  • Kennedy, A;
  • Kiveni, M;
  • Koch, K;
  • Leder, A;
  • Loer, B;
  • Lopez Asamar, E;
  • Mahapatra, R;
  • Mandic, V;
  • Martinez, C;
  • McCarthy, KA;
  • Mirabolfathi, N;
  • Moffatt, RA;
  • Nelson, RH;
  • Novak, L;
  • Page, K;
  • Partridge, R;
  • Pepin, M;
  • Phipps, A;
  • Platt, M;
  • Prasad, K;
  • Pyle, M;
  • Qiu, H;
  • Rau, W;
  • Redl, P;
  • Reisetter, A;
  • Resch, RW;
  • Ricci, Y;
  • Ruschman, M;
  • Saab, T;
  • Sadoulet, B;
  • Sander, J;
  • Schmitt, RL;
  • Schneck, K;
  • Schnee, RW;
  • Scorza, S;
  • Seitz, DN;
  • Serfass, B;
  • Shank, B;
  • Speller, D;
  • Tomada, A;
  • Upadhyayula, S;
  • Villano, AN;
  • Welliver, B;
  • Wright, DH;
  • Yellin, S;
  • Yen, JJ;
  • Young, BA;
  • Zhang, J;
  • (SuperCDMS Collaboration)
  • et al.
Abstract

We report a first search for weakly interacting massive particles (WIMPs) using the background rejection capabilities of SuperCDMS. An exposure of 577 kg days was analyzed for WIMPs with mass <30  GeV/c(2), with the signal region blinded. Eleven events were observed after unblinding. We set an upper limit on the spin-independent WIMP-nucleon cross section of 1.2×10(-42)  cm(2) at 8  GeV/c(2). This result is in tension with WIMP interpretations of recent experiments and probes new parameter space for WIMP-nucleon scattering for WIMP masses <6  GeV/c(2).

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