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arXiv:1708.01294nucl-ex

Observation of Coherent Elastic Neutrino-Nucleus Scattering

D. Akimov, J. B. Albert, P. An, C. Awe, P. S. Barbeau, B. Becker, V. Belov, A. Brown, A. Bolozdynya, B. Cabrera-Palmer, M. Cervantes, J. I. Collar, R. J. Cooper, R. L. Cooper, C. Cuesta, D. J. Dean, J. A. Detwiler, A. Eberhardt, Y. Efremenko, S. R. Elliott, E. M. Erkela, L. Fabris, M. Febbraro, N. E. Fields, W. Fox, Z. Fu, A. Galindo-Uribarri, M. P. Green, M. Hai, M. R. Heath, S. Hedges, D. Hornback, T. W. Hossbach, E. B. Iverson, L. J. Kaufman, S. Ki, S. R. Klein, A. Khromov, A. Konovalov, M. Kremer, A. Kumpan, C. Leadbetter, L. Li, W. Lu, K. Mann, D. M. Markoff, K. Miller, H. Moreno, P. E. Mueller, J. Newby, J. L. Orrell, C. T. Overman, D. S. Parno, S. Penttila, G. Perumpilly, H. Ray, J. Raybern, D. Reyna, G. C. Rich, D. Rimal, D. Rudik, K. Scholberg, B. J. Scholz, G. Sinev, W. M. Snow, V. Sosnovtsev, A. Shakirov, S. Suchyta, B. Suh, R. Tayloe, R. T. Thornton, I. Tolstukhin, J. Vanderwerp, R. L. Varner, C. J. Virtue, Z. Wan, J. Yoo, C. -H. Yu, A. Zawada, J. Zettlemoyer, A. M. Zderic

Abstract

The coherent elastic scattering of neutrinos off nuclei has eluded detection for four decades, even though its predicted cross-section is the largest by far of all low-energy neutrino couplings. This mode of interaction provides new opportunities to study neutrino properties, and leads to a miniaturization of detector size, with potential technological applications. We observe this process at a 6.7-sigma confidence level, using a low-background, 14.6-kg CsI[Na] scintillator exposed to the neutrino emissions from the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory. Characteristic signatures in energy and time, predicted by the Standard Model for this process, are observed in high signal-to-background conditions. Improved constraints on non-standard neutrino interactions with quarks are derived from this initial dataset.

arXiv comments
Journal reference
DOI
doi:10.1126/science.aao0990
Subjects
nucl-exNuclear Experiment hep-exHigh Energy Physics, Experiment hep-phHigh Energy Physics, Phenomenology nucl-thNuclear Theory

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  1. Neutrinos from Deep Inside Earth Provide a New Picture of the Mantle 1 comment

    • Every time I see a story like this I wonder what happened to the small neutrino detectors enabled by coherent elastic neutrino-nucleus scattering [1] [2]. I'm guessing that these detectors aren't useful for a lot of the types of neutrinos that are interesting or something? If…

      jmward01View on HNParent context

  2. SETI spots dozens of new mysterious signals emanating from distant galaxy 1 comment

    • Neŭtrino detectors are coming along nicely! For example, see this paper on the compact COHERENT detector, which is theoretically portable! https://arxiv.org/pdf/1708.01294 It can only detect neutrinos <50 MeV but still, wow. Production, modulation and beam forming (and then…

      sterlindView on HNParent context

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