Spectral Measurement of Electron Antineutrino Oscillation Amplitude and Frequency at Daya Bay
Daya Bay Collaboration
刊名PHYSICAL REVIEW LETTERS
2014
卷号112期号:6
关键词NEUTRON FISSION-PRODUCTS PU-239 DECAY LI-9
学科分类Physics
DOI10.1103/PhysRevLett.112.061801
通讯作者An, FP (reprint author), Inst High Energy Phys, Beijing 100039, Peoples R China.
英文摘要A measurement of the energy dependence of antineutrino disappearance at the Daya Bay reactor neutrino experiment is reported. Electron antineutrinos ((v) over bar (e)) from six 2.9 GW(th) reactors were detected with six detectors deployed in two near (effective baselines 512 and 561 m) and one far (1579 m) underground experimental halls. Using 217 days of data, 41 589 (203 809 and 92 912) antineutrino candidates were detected in the far hall (near halls). An improved measurement of the oscillation amplitude sin(2) 2 theta(13) = 0.090(-0.009)(+0.008) and the first direct measurement of the (v) over bar (e) mass-squared difference vertical bar Delta m(ee)(2)vertical bar = (2.59(-0.20)(+0.19) x 10(-3) eV(2)) is obtained using the observed (v) over bar (e) rates and energy spectra in a three-neutrino framework. This value of vertical bar Delta m(ee)(2)vertical bar eejis consistent with vertical bar Delta m(mu mu)(2)vertical bar measured by muon neutrino disappearance, supporting the three-flavor oscillation model.
类目[WOS]Physics, Multidisciplinary
收录类别SCI
语种英语
WOS记录号WOS:000331951000002
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被引频次:163[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/213665
专题中国科学院高能物理研究所_实验物理中心_期刊论文
作者单位中国科学院高能物理研究所
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Daya Bay Collaboration. Spectral Measurement of Electron Antineutrino Oscillation Amplitude and Frequency at Daya Bay[J]. PHYSICAL REVIEW LETTERS,2014,112(6).
APA Daya Bay Collaboration.(2014).Spectral Measurement of Electron Antineutrino Oscillation Amplitude and Frequency at Daya Bay.PHYSICAL REVIEW LETTERS,112(6).
MLA Daya Bay Collaboration."Spectral Measurement of Electron Antineutrino Oscillation Amplitude and Frequency at Daya Bay".PHYSICAL REVIEW LETTERS 112.6(2014).
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