학술논문
Search for Low-Mass Weakly Interacting Massive Particles Using Voltage-Assisted Calorimetric Ionization Detection in the SuperCDMS Experiment
Document Type
article
Author
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
Source
Physical Review Letters. 112(4)
Subject
Language
Abstract
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.