- Main
Search for Low-Mass Weakly Interacting Massive Particles Using Voltage-Assisted Calorimetric Ionization Detection in the SuperCDMS Experiment
- Agnese, R;
- Anderson, AJ;
- Asai, M;
- Balakishiyeva, D;
- Thakur, R Basu;
- Bauer, DA;
- Billard, J;
- Borgland, A;
- Bowles, MA;
- Brandt, D;
- Brink, PL;
- Bunker, R;
- Cabrera, B;
- Caldwell, DO;
- Cerdeno, DG;
- Chagani, H;
- Cooley, J;
- Cornell, B;
- Crewdson, CH;
- Cushman, P;
- Daal, M;
- Di Stefano, PCF;
- Doughty, T;
- Esteban, L;
- Fallows, S;
- Figueroa-Feliciano, E;
- Godfrey, GL;
- Golwala, SR;
- Hall, J;
- Harris, HR;
- Hertel, SA;
- Hofer, T;
- Holmgren, D;
- Hsu, L;
- Huber, ME;
- Jastram, A;
- Kamaev, O;
- Kara, B;
- Kelsey, MH;
- Kennedy, A;
- Kiveni, M;
- Koch, K;
- Loer, B;
- Asamar, E Lopez;
- Mahapatra, R;
- Mandic, V;
- Martinez, C;
- McCarthy, KA;
- Mirabolfathi, N;
- Moffatt, RA;
- Moore, DC;
- Nadeau, P;
- Nelson, RH;
- Page, K;
- Partridge, R;
- Pepin, M;
- Phipps, A;
- Prasad, K;
- Pyle, M;
- Qiu, H;
- Rau, W;
- Redl, P;
- Reisetter, A;
- Ricci, Y;
- Saab, T;
- Sadoulet, B;
- Sander, J;
- Schneck, K;
- Schnee, RW;
- Scorza, S;
- Serfass, B;
- Shank, B;
- Speller, D;
- Villano, AN;
- Welliver, B;
- Wright, DH;
- Yellin, S;
- Yen, JJ;
- Young, BA;
- Zhang, J
- et al.
Published Web Location
https://doi.org/10.1103/physrevlett.112.041302Abstract
SuperCDMS is an experiment designed to directly detect weakly interacting massive particles (WIMPs), a favored candidate for dark matter ubiquitous in the Universe. In this Letter, we present WIMP-search results using a calorimetric technique we call CDMSlite, which relies on voltage-assisted Luke-Neganov amplification of the ionization energy deposited by particle interactions. The data were collected with a single 0.6 kg germanium detector running for ten live days at the Soudan Underground Laboratory. A low energy threshold of 170 eVee (electron equivalent) was obtained, which allows us to constrain new WIMP-nucleon spin-independent parameter space for WIMP masses below 6 GeV/c2.
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