Measurement of the Electron Antineutrino Oscillation with 1958 Days of Operation at Daya Bay

D Adey¹, F P An², A B Balantekin³, H R Band⁴, M Bishai⁵, S Blyth^{6

7}, D Cao⁸, G F Cao¹, J Cao¹, Y L Chan⁹, J F Chang¹, Y Chang⁷, H S Chen¹, S M Chen¹⁰, Y Chen¹¹, Y X Chen¹², J Cheng¹³, Z K Cheng¹⁴, J J Cherwinka³, M C Chu⁹, A Chukanov¹⁵, J P Cummings¹⁶, F S Deng¹⁷, Y Y Ding¹, M V Diwan⁵, M Dolgareva¹⁵, D A Dwyer¹⁸, W R Edwards¹⁸, M Gonchar¹⁵, G H Gong¹⁰, H Gong¹⁰, W Q Gu⁵, L Guo¹⁰, X H Guo¹⁹, Y H Guo²⁰, Z Guo¹⁰, R W Hackenburg⁵, S Hans⁵, M He¹, K M Heeger⁴, Y K Heng¹, A Higuera²¹, Y B Hsiung⁶, B Z Hu⁶, J R Hu¹, T Hu¹, Z J Hu¹⁴, H X Huang²², X T Huang¹³, Y B Huang¹, P Huber²³, W Huo¹⁷, G Hussain¹⁰, D E Jaffe⁵, K L Jen²⁴, X L Ji¹, X P Ji⁵, R A Johnson²⁵, D Jones²⁶, L Kang²⁷, S H Kettell⁵, L W Koerner²¹, S Kohn²⁸, M Kramer^{18

28}, T J Langford⁴, L Lebanowski¹⁰, J Lee¹⁸, J H C Lee²⁹, R T Lei²⁷, R Leitner³⁰, J K C Leung²⁹, C Li¹³, F Li¹, H L Li¹³, Q J Li¹, S Li²⁷, S C Li²³, S J Li¹⁴, W D Li¹, X N Li¹, X Q Li³¹, Y F Li¹, Z B Li¹⁴, H Liang¹⁷, C J Lin¹⁸, G L Lin²⁴, S Lin²⁷, S K Lin²¹, Y-C Lin⁶, J J Ling¹⁴, J M Link²³, L Littenberg⁵, B R Littlejohn³², J C Liu¹, J L Liu³³, Y Liu¹³, Y H Liu⁸, C W Loh⁸, C Lu³⁴, H Q Lu¹, J S Lu¹, K B Luk^{18

28}, X B Ma¹², X Y Ma¹, Y Q Ma¹, Y Malyshkin³⁵, C Marshall¹⁸, D A Martinez Caicedo³², K T McDonald³⁴, R D McKeown^{36

37}, I Mitchell²¹, L Mora Lepin³⁵, J Napolitano²⁶, D Naumov¹⁵, E Naumova¹⁵, J P Ochoa-Ricoux³⁵, A Olshevskiy¹⁵, H-R Pan⁶, J Park²³, S Patton¹⁸, V Pec³⁰, J C Peng³⁸, L Pinsky²¹, C S J Pun²⁹, F Z Qi¹, M Qi⁸, X Qian⁵, R M Qiu¹², N Raper¹⁴, J Ren²², R Rosero⁵, B Roskovec³⁵, X C Ruan²², H Steiner^{18

28}, J L Sun³⁹, W Tang⁵, D Taychenachev¹⁵, K Treskov¹⁵, W-H Tse⁹, C E Tull¹⁸, B Viren⁵, V Vorobel³⁰, C H Wang⁷, J Wang¹⁴, M Wang¹³, N Y Wang¹⁹, R G Wang¹, W Wang^{14

37}, W Wang⁸, X Wang⁴⁰, Y F Wang¹, Z Wang¹, Z Wang¹⁰, Z M Wang¹, H Y Wei⁵, L H Wei¹, L J Wen¹, K Whisnant⁴¹, C G White³², T Wise⁴, H L H Wong^{18

28}, S C F Wong¹⁴, E Worcester⁵, Q Wu¹³, W J Wu¹, D M Xia⁴², Z Z Xing¹, J L Xu¹, T Xue¹⁰, C G Yang¹, H Yang⁸, L Yang²⁷, M S Yang¹, M T Yang¹³, Y Z Yang¹⁴, M Ye¹, M Yeh⁵, B L Young⁴¹, H Z Yu¹⁴, Z Y Yu¹, B B Yue¹⁴, S Zeng¹, L Zhan¹, C Zhang⁵, C C Zhang¹, F Y Zhang³³, H H Zhang¹⁴, J W Zhang¹, Q M Zhang²⁰, R Zhang⁸, X F Zhang¹, X T Zhang¹, Y M Zhang¹⁴, Y M Zhang¹⁰, Y X Zhang³⁹, Y Y Zhang³³, Z J Zhang²⁷, Z P Zhang¹⁷, Z Y Zhang¹, J Zhao¹, P Zheng²⁷, L Zhou¹, H L Zhuang¹, J H Zou¹; Daya Bay Collaboration

Affiliations

¹ Institute of High Energy Physics, Beijing.
² Institute of Modern Physics, East China University of Science and Technology, Shanghai.
³ University of Wisconsin, Madison, Wisconsin 53706.
⁴ Wright Laboratory and Department of Physics, Yale University, New Haven, Connecticut 06520.
⁵ Brookhaven National Laboratory, Upton, New York 11973.
⁶ Department of Physics, National Taiwan University, Taipei.
⁷ National United University, Miao-Li.
⁸ Nanjing University, Nanjing.
⁹ Chinese University of Hong Kong, Hong Kong.
¹⁰ Department of Engineering Physics, Tsinghua University, Beijing.
¹¹ Shenzhen University, Shenzhen.
¹² North China Electric Power University, Beijing.
¹³ Shandong University, Jinan.
¹⁴ Sun Yat-Sen (Zhongshan) University, Guangzhou.
¹⁵ Joint Institute for Nuclear Research, Dubna, Moscow Region.
¹⁶ Siena College, Loudonville, New York 12211.
¹⁷ University of Science and Technology of China, Hefei.
¹⁸ Lawrence Berkeley National Laboratory, Berkeley, California 94720.
¹⁹ Beijing Normal University, Beijing.
²⁰ Department of Nuclear Science and Technology, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an.
²¹ Department of Physics, University of Houston, Houston, Texas 77204.
²² China Institute of Atomic Energy, Beijing.
²³ Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia 24061.
²⁴ Institute of Physics, National Chiao-Tung University, Hsinchu.
²⁵ Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221.
²⁶ Department of Physics, College of Science and Technology, Temple University, Philadelphia, Pennsylvania 19122.
²⁷ Dongguan University of Technology, Dongguan.
²⁸ Department of Physics, University of California, Berkeley, California 94720.
²⁹ Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong.
³⁰ Charles University, Faculty of Mathematics and Physics, Prague.
³¹ School of Physics, Nankai University, Tianjin.
³² Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616.
³³ Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai.
³⁴ Joseph Henry Laboratories, Princeton University, Princeton, New Jersey 08544.
³⁵ Instituto de Física, Pontificia Universidad Católica de Chile, Santiago.
³⁶ California Institute of Technology, Pasadena, California 91125.
³⁷ College of William and Mary, Williamsburg, Virginia 23187.
³⁸ Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801.
³⁹ China General Nuclear Power Group, Shenzhen.
⁴⁰ College of Electronic Science and Engineering, National University of Defense Technology, Changsha.
⁴¹ Iowa State University, Ames, Iowa 50011.
⁴² Chongqing University, Chongqing.

PMID: 30608728
DOI: 10.1103/PhysRevLett.121.241805

Free article

Measurement of the Electron Antineutrino Oscillation with 1958 Days of Operation at Daya Bay

D Adey et al. Phys Rev Lett. 2018.

Free article

. 2018 Dec 14;121(24):241805.

doi: 10.1103/PhysRevLett.121.241805.

Authors

Affiliations

¹ Institute of High Energy Physics, Beijing.
² Institute of Modern Physics, East China University of Science and Technology, Shanghai.
³ University of Wisconsin, Madison, Wisconsin 53706.
⁴ Wright Laboratory and Department of Physics, Yale University, New Haven, Connecticut 06520.
⁵ Brookhaven National Laboratory, Upton, New York 11973.
⁶ Department of Physics, National Taiwan University, Taipei.
⁷ National United University, Miao-Li.
⁸ Nanjing University, Nanjing.
⁹ Chinese University of Hong Kong, Hong Kong.
¹⁰ Department of Engineering Physics, Tsinghua University, Beijing.
¹¹ Shenzhen University, Shenzhen.
¹² North China Electric Power University, Beijing.
¹³ Shandong University, Jinan.
¹⁴ Sun Yat-Sen (Zhongshan) University, Guangzhou.
¹⁵ Joint Institute for Nuclear Research, Dubna, Moscow Region.
¹⁶ Siena College, Loudonville, New York 12211.
¹⁷ University of Science and Technology of China, Hefei.
¹⁸ Lawrence Berkeley National Laboratory, Berkeley, California 94720.
¹⁹ Beijing Normal University, Beijing.
²⁰ Department of Nuclear Science and Technology, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an.
²¹ Department of Physics, University of Houston, Houston, Texas 77204.
²² China Institute of Atomic Energy, Beijing.
²³ Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia 24061.
²⁴ Institute of Physics, National Chiao-Tung University, Hsinchu.
²⁵ Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221.
²⁶ Department of Physics, College of Science and Technology, Temple University, Philadelphia, Pennsylvania 19122.
²⁷ Dongguan University of Technology, Dongguan.
²⁸ Department of Physics, University of California, Berkeley, California 94720.
²⁹ Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong.
³⁰ Charles University, Faculty of Mathematics and Physics, Prague.
³¹ School of Physics, Nankai University, Tianjin.
³² Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616.
³³ Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai.
³⁴ Joseph Henry Laboratories, Princeton University, Princeton, New Jersey 08544.
³⁵ Instituto de Física, Pontificia Universidad Católica de Chile, Santiago.
³⁶ California Institute of Technology, Pasadena, California 91125.
³⁷ College of William and Mary, Williamsburg, Virginia 23187.
³⁸ Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801.
³⁹ China General Nuclear Power Group, Shenzhen.
⁴⁰ College of Electronic Science and Engineering, National University of Defense Technology, Changsha.
⁴¹ Iowa State University, Ames, Iowa 50011.
⁴² Chongqing University, Chongqing.

PMID: 30608728
DOI: 10.1103/PhysRevLett.121.241805

Abstract

We report a measurement of electron antineutrino oscillation from the Daya Bay Reactor Neutrino Experiment with nearly 4 million reactor ν[over ¯]_{e} inverse β decay candidates observed over 1958 days of data collection. The installation of a flash analog-to-digital converter readout system and a special calibration campaign using different source enclosures reduce uncertainties in the absolute energy calibration to less than 0.5% for visible energies larger than 2 MeV. The uncertainty in the cosmogenic ^{9}Li and ^{8}He background is reduced from 45% to 30% in the near detectors. A detailed investigation of the spent nuclear fuel history improves its uncertainty from 100% to 30%. Analysis of the relative ν[over ¯]_{e} rates and energy spectra among detectors yields sin^{2}2θ_{13}=0.0856±0.0029 and Δm_{32}^{2}=(2.471_{-0.070}^{+0.068})×10^{-3} eV^{2} assuming the normal hierarchy, and Δm_{32}^{2}=-(2.575_{-0.070}^{+0.068})×10^{-3} eV^{2} assuming the inverted hierarchy.

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Measurement of the Electron Antineutrino Oscillation with 1958 Days of Operation at Daya Bay

Affiliations

Measurement of the Electron Antineutrino Oscillation with 1958 Days of Operation at Daya Bay

Authors

Affiliations

Abstract

LinkOut - more resources

Full Text Sources

Research Materials