1. Observation of coherent elastic neutrino-nucleus scattering.
- Author
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Akimov D, Albert JB, An P, Awe C, Barbeau PS, Becker B, Belov V, Brown A, Bolozdynya A, Cabrera-Palmer B, Cervantes M, Collar JI, Cooper RJ, Cooper RL, Cuesta C, Dean DJ, Detwiler JA, Eberhardt A, Efremenko Y, Elliott SR, Erkela EM, Fabris L, Febbraro M, Fields NE, Fox W, Fu Z, Galindo-Uribarri A, Green MP, Hai M, Heath MR, Hedges S, Hornback D, Hossbach TW, Iverson EB, Kaufman LJ, Ki S, Klein SR, Khromov A, Konovalov A, Kremer M, Kumpan A, Leadbetter C, Li L, Lu W, Mann K, Markoff DM, Miller K, Moreno H, Mueller PE, Newby J, Orrell JL, Overman CT, Parno DS, Penttila S, Perumpilly G, Ray H, Raybern J, Reyna D, Rich GC, Rimal D, Rudik D, Scholberg K, Scholz BJ, Sinev G, Snow WM, Sosnovtsev V, Shakirov A, Suchyta S, Suh B, Tayloe R, Thornton RT, Tolstukhin I, Vanderwerp J, Varner RL, Virtue CJ, Wan Z, Yoo J, Yu CH, Zawada A, Zettlemoyer J, and Zderic AM
- Abstract
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 6.7σ 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., (Copyright © 2017, American Association for the Advancement of Science.)
- Published
- 2017
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