Journal
SCIENCE
Volume 357, Issue 6356, Pages 1123-+Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aao0990
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Funding
- Alfred P. Sloan Foundation [BR2014-037]
- Consortium for Nonproliferation Enabling Capabilities grant [DE-NA0002576]
- Institute for Basic Science (Korea) [IBS-R017-G1-2017-a00]
- NSF [PHY-1306942, PHY-1506357, PHY-1614545, HRD-1601174]
- Lawrence Berkeley National Laboratory Directed Research and Development funds
- Russian Foundation for Basic Research [17-02-01077_a]
- Russian Science Foundation [02. a03.21.0005]
- Sandia National Laboratories Directed Research and Development Exploratory Express Funds
- Triangle Universities Nuclear Laboratory
- U.S. Department of Energy (DOE) Office of Science [DE-SC0009824, DE-SC0010007, DE-SC0014249, DE-SC0014558]
- DOE's National Nuclear Security Administration Office of Defense, Nuclear Nonproliferation Research, and Development
- University of Washington Royalty Research Fund [FA124183]
- DOE's National Nuclear Security Administration [DE-NA0003525]
- DOE [DE-AC05-76RL01830]
- National Consortium for Measurement and Signature Intelligence Research Program
- Intelligence Community Postdoctoral Research Fellowship Program
- Kavli Foundation
- Laboratory Directed Research and Development Program of Oak Ridge National Laboratory
- DOE Office of Science, Office of High Energy Physics
- [NSF PHY-1125897]
- U.S. Department of Energy (DOE) [DE-SC0014249, DE-SC0014558] Funding Source: U.S. Department of Energy (DOE)
- Direct For Mathematical & Physical Scien
- Division Of Physics [1461204] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Physics [1506357] Funding Source: National Science Foundation
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The coherent elastic scattering of neutrinos off nuclei has eluded detection for four decades, even though its predicted cross section is by far the largest of all low-energy neutrino couplings. This mode of interaction offers new opportunities to study neutrino properties and leads to a miniaturization of detector size, with potential technological applications. We observed this process at a 6.7s confidence level, using a low-background, 14.6-kilogram CsI[Na] scintillator exposed to the neutrino emissions from the Spallation Neutron Source at Oak Ridge National Laboratory. Characteristic signatures in energy and time, predicted by the standard model for this process, were observed in high signal-to-background conditions. Improved constraints on nonstandard neutrino interactions with quarks are derived from this initial data set.
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