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arXiv 1708.01294nucl-exhep-exhep-phnucl-th
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中微子-核相干弹性散射的观测

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… 展开作者

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

摘要:

40年来,中微子从原子核上的相干弹性散射一直没有被探测到,尽管它的预测截面是迄今为止所有低能中微子耦合中最大的。这种相互作用模式为研究中微子性质提供了新的机会,并导致探测器尺寸的小型化,具有潜在的技术应用。我们观察到这个过程在6.7西格玛的置信水平,使用低背景,14.6公斤碘化铯[钠]闪烁体暴露于中微子排放的Spectron中子源(SNS)在橡树岭国家实验室。能量和时间的特征签名,预测的标准模型为这个过程中,在高信号背景条件下观察。改进的非标准中微子与夸克相互作用的约束来自这个初始数据集。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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