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New Measurement of Antineutrino Oscillation with the Full Detector Configuration at Daya Bay

文献类型：期刊论文

作者An, F. P.1; Balantekin, A. B.2; Band, H. R.3; Bishai, M.4; Blyth, S.5,6; Butorov, I.7; Cao, G. F.8; Cao, J.8; Cen, W. R.8; Chan, Y. L.9
刊名PHYSICAL REVIEW LETTERS
出版日期2015-09-11
卷号115页码:8
ISSN号0031-9007
DOI10.1103/PhysRevLett.115.111802
英文摘要We report a new measurement of electron antineutrino disappearance using the fully constructed Daya Bay Reactor Neutrino Experiment. The final two of eight antineutrino detectors were installed in the summer of 2012. Including the 404 days of data collected from October 2012 to November 2013 resulted in a total exposure of 6.9 x 10(5) GW(th) ton days, a 3.6 times increase over our previous results. Improvements in energy calibration limited variations between detectors to 0.2%. Removal of six Am-241-C-13 radioactive calibration sources reduced the background by a factor of 2 for the detectors in the experimental hall furthest from the reactors. Direct prediction of the antineutrino signal in the far detectors based on the measurements in the near detectors explicitly minimized the dependence of the measurement on models of reactor antineutrino emission. The uncertainties in our estimates of sin(2)2 theta(13) and vertical bar Delta m(ee)(2)vertical bar were halved as a result of these improvements. An analysis of the relative antineutrino rates and energy spectra between detectors gave sin(2)2 theta(13) = 0.084 +/- 0.005 and vertical bar Delta m(ee)(2)vertical bar = (2.42 +/- 0.11) x 10(-3) eV(2) in the three-neutrino framework.
WOS关键词NEUTRON FISSION-PRODUCTS ; SPECTRA ; SYSTEM ; PU-239
资助项目Ministry of Science and Technology of China ; U.S. Department of Energy ; Chinese Academy of Sciences ; CAS Center for Excellence in Particle Physics ; National Natural Science Foundation of China ; Guangdong provincial government ; Shenzhen municipal government ; China General Nuclear Power Group, Key Laboratory of Particle and Radiation Imaging (Tsinghua University) ; Ministry of Education, Key Laboratory of Particle Physics and Particle Irradiation (Shandong University) ; Ministry of Education, Shanghai Laboratory for Particle Physics and Cosmology ; Research Grants Council of the Hong Kong Special Administrative Region of China ; University Development Fund of The University of Hong Kong ; MOE program for Research of Excellence at National Taiwan University ; National Chiao-Tung University ; NSC fund support from Taiwan ; U.S. National Science Foundation ; Alfred P. Sloan Foundation ; Ministry of Education, Youth, and Sports of the Czech Republic ; Joint Institute of Nuclear Research in Dubna, Russia ; NSFC-RFBR joint research program ; National Commission of Scientific and Technological Research of Chile ; Tsinghua University Initiative Scientific Research Program
WOS研究方向Physics
语种英语
出版者AMER PHYSICAL SOC
WOS记录号WOS:000361040800001
资助机构Ministry of Science and Technology of China ; U.S. Department of Energy ; Chinese Academy of Sciences ; CAS Center for Excellence in Particle Physics ; National Natural Science Foundation of China ; Guangdong provincial government ; Shenzhen municipal government ; China General Nuclear Power Group, Key Laboratory of Particle and Radiation Imaging (Tsinghua University) ; Ministry of Education, Key Laboratory of Particle Physics and Particle Irradiation (Shandong University) ; Ministry of Education, Shanghai Laboratory for Particle Physics and Cosmology ; Research Grants Council of the Hong Kong Special Administrative Region of China ; University Development Fund of The University of Hong Kong ; MOE program for Research of Excellence at National Taiwan University ; National Chiao-Tung University ; NSC fund support from Taiwan ; U.S. National Science Foundation ; Alfred P. Sloan Foundation ; Ministry of Education, Youth, and Sports of the Czech Republic ; Joint Institute of Nuclear Research in Dubna, Russia ; NSFC-RFBR joint research program ; National Commission of Scientific and Technological Research of Chile ; Tsinghua University Initiative Scientific Research Program
源URL[http://119.78.100.186/handle/113462/40672]  
专题中国科学院近代物理研究所
通讯作者An, F. P.
作者单位1.E China Univ Sci & Technol, Inst Modern Phys, Shanghai 200237, Peoples R China
2.Univ Wisconsin, Madison, WI USA
3.Yale Univ, Dept Phys, New Haven, CT USA
4.Brookhaven Natl Lab, Upton, NY 11973 USA
5.Natl Taiwan Univ, Dept Phys, Taipei, Taiwan
6.Natl United Univ, Miaoli, Taiwan
7.Joint Inst Nucl Res, Dubna, Moscow Region, Russia
8.Inst High Energy Phys, Beijing 100039, Peoples R China
9.Chinese Univ Hong Kong, Hong Kong, Hong Kong, Peoples R China
10.Natl Chiao Tung Univ, Inst Phys, Hsinchu, Taiwan
推荐引用方式
GB/T 7714		 An, F. P.,Balantekin, A. B.,Band, H. R.,et al. New Measurement of Antineutrino Oscillation with the Full Detector Configuration at Daya Bay[J]. PHYSICAL REVIEW LETTERS,2015,115:8.
APA An, F. P..,Balantekin, A. B..,Band, H. R..,Bishai, M..,Blyth, S..,...&Zou, J. H..(2015).New Measurement of Antineutrino Oscillation with the Full Detector Configuration at Daya Bay.PHYSICAL REVIEW LETTERS,115,8.
MLA An, F. P.,et al."New Measurement of Antineutrino Oscillation with the Full Detector Configuration at Daya Bay".PHYSICAL REVIEW LETTERS 115(2015):8.

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