Search for low-mass weakly interacting massive particles using voltage-assisted calorimetric ionization detection in the SuperCDMS experiment
- Author(s): Agnese, R
- Anderson, AJ
- Asai, M
- Balakishiyeva, D
- Basu Thakur, R
- 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
- Lopez Asamar, E
- 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. © 2014 American Physical Society.
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