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Measurement of the Reactor Antineutrino Flux and Spectrum 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, D.8; Cao, G. F.9; Cao, J.9; Cen, W. R.9
刊名PHYSICAL REVIEW LETTERS
出版日期2016-02-12
卷号116页码:8
ISSN号0031-9007
DOI10.1103/PhysRevLett.116.061801
英文摘要This Letter reports a measurement of the flux and energy spectrum of electron antineutrinos from six 2.9 GW(th) nuclear reactors with six detectors deployed in two near (effective baselines 512 and 561 m) and one far (1579 m) underground experimental halls in the Daya Bay experiment. Using 217 days of data, 296 721 and 41 589 inverse beta decay (IBD) candidates were detected in the near and far halls, respectively. The measured IBD yield is (1.55 +/- 0.04) x 10(-18) cm(2) GW(-1) day(-1) or (5.92 +/- 0.14) x 10(-43) cm(2) fission(-1). This flux measurement is consistent with previous short-baseline reactor antineutrino experiments and is 0.946 +/- 0.022 (0.991 +/- 0.023) relative to the flux predicted with the Huber-Mueller (ILL-Vogel) fissile antineutrino model. The measured IBD positron energy spectrum deviates from both spectral predictions by more than 2 sigma over the full energy range with a local significance of up to similar to 4 sigma between 4-6 MeV. A reactor antineutrino spectrum of IBD reactions is extracted from the measured positron energy spectrum for model-independent predictions.
WOS关键词NEUTRON FISSION-PRODUCTS ; OSCILLATION ; PU-239
资助项目Ministry of Science and Technology of China ; U.S. Department of Energy ; Chinese Academy of Sciences (CAS) ; CAS Center for Excellence in Particle Physics ; National Natural Science Foundation of China ; Guangdong provincial government ; Shenzhen municipal government ; China General Nuclear Power Group, Laboratory Directed Research and Development Program of Institute of High Energy Physics ; 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 from Taiwan ; U.S. National Science Foundation ; Alfred P. Sloan Foundation ; Laboratory Directed Research and Development Program of Berkeley National Laboratory and Brookhaven National Laboratory ; Ministry of Education, Youth, and Sports of the Czech Republic ; Charles University in Prague ; Joint Institute of Nuclear Research in Dubna, Russia ; NSFC-RFBR joint research program ; National Commission of Scientific and Technological Research of Chile
WOS研究方向Physics
语种英语
WOS记录号WOS:000370030800004
出版者AMER PHYSICAL SOC
资助机构Ministry of Science and Technology of China ; U.S. Department of Energy ; Chinese Academy of Sciences (CAS) ; CAS Center for Excellence in Particle Physics ; National Natural Science Foundation of China ; Guangdong provincial government ; Shenzhen municipal government ; China General Nuclear Power Group, Laboratory Directed Research and Development Program of Institute of High Energy Physics ; 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 from Taiwan ; U.S. National Science Foundation ; Alfred P. Sloan Foundation ; Laboratory Directed Research and Development Program of Berkeley National Laboratory and Brookhaven National Laboratory ; Ministry of Education, Youth, and Sports of the Czech Republic ; Charles University in Prague ; Joint Institute of Nuclear Research in Dubna, Russia ; NSFC-RFBR joint research program ; National Commission of Scientific and Technological Research of Chile
源URL[http://119.78.100.186/handle/113462/41787]  
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 36003, Taiwan
7.Joint Inst Nucl Res, Dubna, Moscow Region, Russia
8.Nanjing Univ, Nanjing 210008, Jiangsu, Peoples R China
9.Inst High Energy Phys, Beijing 100039, Peoples R China
10.Chinese Univ Hong Kong, Hong Kong, Hong Kong, Peoples R China
推荐引用方式
GB/T 7714		 An, F. P.,Balantekin, A. B.,Band, H. R.,et al. Measurement of the Reactor Antineutrino Flux and Spectrum at Daya Bay[J]. PHYSICAL REVIEW LETTERS,2016,116:8.
APA An, F. P..,Balantekin, A. B..,Band, H. R..,Bishai, M..,Blyth, S..,...&Zou, J. H..(2016).Measurement of the Reactor Antineutrino Flux and Spectrum at Daya Bay.PHYSICAL REVIEW LETTERS,116,8.
MLA An, F. P.,et al."Measurement of the Reactor Antineutrino Flux and Spectrum at Daya Bay".PHYSICAL REVIEW LETTERS 116(2016):8.

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