Agnese, R. and Chang, Y. and Cornell, B. D. and Golwala, S. R. (2018) Results from the Super Cryogenic Dark Matter Search Experiment at Soudan. Physical Review Letters, 120 (6). Art. No. 061802. ISSN 0031-899X. https://resolver.caltech.edu/CaltechAUTHORS:20180209-102230885
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Abstract
We report the result of a blinded search for weakly interacting massive particles (WIMPs) using the majority of the SuperCDMS Soudan data set. With an exposure of 1690 kg d, a single candidate event is observed, consistent with expected backgrounds. This analysis (combined with previous Ge results) sets an upper limit on the spin-independent WIMP–nucleon cross section of 1.4 × 10^(−44) (1.0 × 10^(−44) cm^2 at 46 GeV/c^2. These results set the strongest limits for WIMP–germanium-nucleus interactions for masses > 12 GeV/c^2.
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| Additional Information: | © 2018 Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3. Received 31 August 2017; revised manuscript received 2 January 2018; published 9 February 2018. The SuperCDMS Collaboration gratefully acknowledges technical assistance from the staff of the Soudan Underground Laboratory and the Minnesota Department of Natural Resources. The iZIP detectors were fabricated in the Stanford Nanofabrication Facility, which is a member of the National Nanofabrication Infrastructure Network, sponsored and supported by the NSF. Part of the research described in this Letter was conducted under the Ultra Sensitive Nuclear Measurements Initiative and under Contract No. DE-AC05-76RL01830 at Pacific Northwest National Laboratory, which is operated by Battelle for the U.S. Department of Energy. Funding and support were received from the National Science Foundation, the Department of Energy, Fermilab URA Visiting Scholar Grant No. 15-S-33, NSERC Canada, and MultiDark (Spanish MINECO). This document was prepared by SuperCDMS using the resources of the Fermi National Accelerator Laboratory (Fermilab), a U.S. Department of Energy, Office of Science, HEP User Facility. Fermilab is managed by Fermi Research Alliance, LLC (FRA), acting under Contract No. DE-AC02-07CH11359. SLAC is operated under Contract No. DEAC02-76SF00515 with the United States Department of Energy. | ||||||||||||||||||
| Group: | Astronomy Department | ||||||||||||||||||
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| Issue or Number: | 6 | ||||||||||||||||||
| Record Number: | CaltechAUTHORS:20180209-102230885 | ||||||||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20180209-102230885 | ||||||||||||||||||
| Official Citation: | Results from the Super Cryogenic Dark Matter Search Experiment at Soudan R. Agnese et al. (SuperCDMS Collaboration) Phys. Rev. Lett. 120, 061802 (2018) – Published 9 February 2018 | ||||||||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||||||
| ID Code: | 84763 | ||||||||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||||||||
| Deposited By: | Ruth Sustaita | ||||||||||||||||||
| Deposited On: | 10 Feb 2018 00:11 | ||||||||||||||||||
| Last Modified: | 03 Oct 2019 19:22 |
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