Measurement of the Reactor Antineutrino Flux and Spectrum at Daya Bay

F P An¹, A B Balantekin², H R Band³, M Bishai⁴, S Blyth^{5

6}, I Butorov⁷, D Cao⁸, G F Cao⁹, J Cao⁹, W R Cen⁹, Y L Chan¹⁰, J F Chang⁹, L C Chang¹¹, Y Chang⁶, H S Chen⁹, Q Y Chen¹², S M Chen¹³, Y X Chen¹⁴, Y Chen¹⁵, J H Cheng¹¹, J Cheng¹², Y P Cheng⁹, J J Cherwinka², M C Chu¹⁰, J P Cummings¹⁶, J de Arcos¹⁷, Z Y Deng⁹, X F Ding⁹, Y Y Ding⁹, M V Diwan⁴, J Dove¹⁸, E Draeger¹⁷, D A Dwyer¹⁹, W R Edwards¹⁹, S R Ely¹⁸, R Gill⁴, M Gonchar⁷, G H Gong¹³, H Gong¹³, M Grassi⁹, W Q Gu²⁰, M Y Guan⁹, L Guo¹³, X H Guo²¹, R W Hackenburg⁴, R Han¹⁴, S Hans⁴, M He⁹, K M Heeger³, Y K Heng⁹, A Higuera²², Y K Hor²³, Y B Hsiung⁵, B Z Hu⁵, L M Hu⁴, L J Hu²¹, T Hu⁹, W Hu⁹, E C Huang¹⁸, H X Huang²⁴, X T Huang¹², P Huber²³, G Hussain¹³, D E Jaffe⁴, P Jaffke²³, K L Jen¹¹, S Jetter⁹, X P Ji^{13

25}, X L Ji⁹, J B Jiao¹², R A Johnson²⁶, L Kang²⁷, S H Kettell⁴, S Kohn²⁸, M Kramer^{19

28}, K K Kwan¹⁰, M W Kwok¹⁰, T Kwok²⁹, T J Langford³, K Lau²², L Lebanowski¹³, J Lee¹⁹, R T Lei²⁷, R Leitner³⁰, K Y Leung²⁹, J K C Leung²⁹, C A Lewis², D J Li³¹, F Li⁹, G S Li²⁰, Q J Li⁹, S C Li²⁹, W D Li⁹, X N Li⁹, X Q Li²⁵, Y F Li⁹, Z B Li³², H Liang³¹, C J Lin¹⁹, G L Lin¹¹, P Y Lin¹¹, S K Lin²², J J Ling^{4

18

32}, J M Link²³, L Littenberg⁴, B R Littlejohn^{17

26}, D W Liu²², H Liu²², J L Liu²⁰, J C Liu⁹, S S Liu²⁹, C Lu³³, H Q Lu⁹, J S Lu⁹, K B Luk^{19

28}, Q M Ma⁹, X Y Ma⁹, X B Ma¹⁴, Y Q Ma⁹, D A Martinez Caicedo¹⁷, K T McDonald³³, R D McKeown^{34

35}, Y Meng²³, I Mitchell²², J Monari Kebwaro³⁶, Y Nakajima¹⁹, J Napolitano³⁷, D Naumov⁷, E Naumova⁷, H Y Ngai²⁹, Z Ning⁹, J P Ochoa-Ricoux³⁸, A Olshevski⁷, H-R Pan⁵, J Park²³, S Patton¹⁹, V Pec³⁰, J C Peng¹⁸, L E Piilonen²³, L Pinsky²², C S J Pun²⁹, F Z Qi⁹, M Qi⁸, X Qian⁴, N Raper³⁹, B Ren²⁷, J Ren²⁴, R Rosero⁴, B Roskovec³⁰, X C Ruan²⁴, B B Shao¹³, H Steiner^{19

28}, G X Sun⁹, J L Sun⁴⁰, W Tang⁴, D Taychenachev⁷, K V Tsang¹⁹, C E Tull¹⁹, Y C Tung⁵, N Viaux³⁸, B Viren⁴, V Vorobel³⁰, C H Wang⁶, M Wang¹², N Y Wang²¹, R G Wang⁹, W Wang^{32

35}, W W Wang⁸, X Wang⁴¹, Y F Wang⁹, Z Wang¹³, Z Wang⁹, Z M Wang⁹, H Y Wei¹³, L J Wen⁹, K Whisnant⁴², C G White¹⁷, L Whitehead²², T Wise², H L H Wong^{19

28}, S C F Wong^{10

32}, E Worcester⁴, Q Wu¹², D M Xia^{9

43}, J K Xia⁹, X Xia¹², Z Z Xing⁹, J Y Xu¹⁰, J L Xu⁹, J Xu²¹, Y Xu²⁵, T Xue¹³, J Yan³⁶, C G Yang⁹, L Yang²⁷, M S Yang⁹, M T Yang¹², M Ye⁹, M Yeh⁴, B L Young⁴², G Y Yu⁸, Z Y Yu⁹, S L Zang⁸, L Zhan⁹, C Zhang⁴, H H Zhang³², J W Zhang⁹, Q M Zhang³⁶, Y M Zhang¹³, Y X Zhang⁴⁰, Y M Zhang³², Z J Zhang²⁷, Z Y Zhang⁹, Z P Zhang³¹, J Zhao⁹, Q W Zhao⁹, Y F Zhao¹⁴, Y B Zhao⁹, L Zheng³¹, W L Zhong⁹, L Zhou⁹, N Zhou³¹, H L Zhuang⁹, J H Zou⁹; Daya Bay Collaboration

Affiliations

¹ Institute of Modern Physics, East China University of Science and Technology, Shanghai, China.
² University of Wisconsin, Madison, Wisconsin, USA.
³ Department of Physics, Yale University, New Haven, Connecticut, USA.
⁴ Brookhaven National Laboratory, Upton, New York, USA.
⁵ Department of Physics, National Taiwan University, Taipei, Taiwan.
⁶ National United University, Miao-Li, Taiwan.
⁷ Joint Institute for Nuclear Research, Dubna, Moscow Region, Russia.
⁸ Nanjing University, Nanjing, China.
⁹ Institute of High Energy Physics, Beijing, China.
¹⁰ Chinese University of Hong Kong, Hong Kong, China.
¹¹ Institute of Physics, National Chiao-Tung University, Hsinchu, Taiwan.
¹² Shandong University, Jinan, China.
¹³ Department of Engineering Physics, Tsinghua University, Beijing, China.
¹⁴ North China Electric Power University, Beijing, China.
¹⁵ Shenzhen University, Shenzhen, China.
¹⁶ Siena College, Loudonville, New York, USA.
¹⁷ Department of Physics, Illinois Institute of Technology, Chicago, Illinois, USA.
¹⁸ Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA.
¹⁹ Lawrence Berkeley National Laboratory, Berkeley, California, USA.
²⁰ Shanghai Jiao Tong University, Shanghai, China.
²¹ Beijing Normal University, Beijing, China.
²² Department of Physics, University of Houston, Houston, Texas, USA.
²³ Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia, USA.
²⁴ China Institute of Atomic Energy, Beijing, China.
²⁵ School of Physics, Nankai University, Tianjin, China.
²⁶ Department of Physics, University of Cincinnati, Cincinnati, Ohio, USA.
²⁷ Dongguan University of Technology, Dongguan, China.
²⁸ Department of Physics, University of California, Berkeley, California, USA.
²⁹ Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong, China.
³⁰ Charles University, Faculty of Mathematics and Physics, Prague, Czech Republic.
³¹ University of Science and Technology of China, Hefei, China.
³² Sun Yat-Sen (Zhongshan) University, Guangzhou, China.
³³ Joseph Henry Laboratories, Princeton University, Princeton, New Jersey, USA.
³⁴ California Institute of Technology, Pasadena, California, USA.
³⁵ College of William and Mary, Williamsburg, Virginia, USA.
³⁶ Xi'an Jiaotong University, Xi'an, China.
³⁷ Department of Physics, College of Science and Technology, Temple University, Philadelphia, Pennsylvania, USA.
³⁸ Instituto de Física, Pontificia Universidad Católica de Chile, Santiago, Chile.
³⁹ Department of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute, Troy, New York, USA.
⁴⁰ China General Nuclear Power Group, China.
⁴¹ College of Electronic Science and Engineering, National University of Defense Technology, Changsha, China.
⁴² Iowa State University, Ames, Iowa, USA.
⁴³ Chongqing University, Chongqing, China.

PMID: 26918980
DOI: 10.1103/PhysRevLett.116.061801

Free article

Measurement of the Reactor Antineutrino Flux and Spectrum at Daya Bay

F P An et al. Phys Rev Lett. 2016.

Free article

. 2016 Feb 12;116(6):061801.

doi: 10.1103/PhysRevLett.116.061801. Epub 2016 Feb 12.

Authors

Affiliations

¹ Institute of Modern Physics, East China University of Science and Technology, Shanghai, China.
² University of Wisconsin, Madison, Wisconsin, USA.
³ Department of Physics, Yale University, New Haven, Connecticut, USA.
⁴ Brookhaven National Laboratory, Upton, New York, USA.
⁵ Department of Physics, National Taiwan University, Taipei, Taiwan.
⁶ National United University, Miao-Li, Taiwan.
⁷ Joint Institute for Nuclear Research, Dubna, Moscow Region, Russia.
⁸ Nanjing University, Nanjing, China.
⁹ Institute of High Energy Physics, Beijing, China.
¹⁰ Chinese University of Hong Kong, Hong Kong, China.
¹¹ Institute of Physics, National Chiao-Tung University, Hsinchu, Taiwan.
¹² Shandong University, Jinan, China.
¹³ Department of Engineering Physics, Tsinghua University, Beijing, China.
¹⁴ North China Electric Power University, Beijing, China.
¹⁵ Shenzhen University, Shenzhen, China.
¹⁶ Siena College, Loudonville, New York, USA.
¹⁷ Department of Physics, Illinois Institute of Technology, Chicago, Illinois, USA.
¹⁸ Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA.
¹⁹ Lawrence Berkeley National Laboratory, Berkeley, California, USA.
²⁰ Shanghai Jiao Tong University, Shanghai, China.
²¹ Beijing Normal University, Beijing, China.
²² Department of Physics, University of Houston, Houston, Texas, USA.
²³ Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia, USA.
²⁴ China Institute of Atomic Energy, Beijing, China.
²⁵ School of Physics, Nankai University, Tianjin, China.
²⁶ Department of Physics, University of Cincinnati, Cincinnati, Ohio, USA.
²⁷ Dongguan University of Technology, Dongguan, China.
²⁸ Department of Physics, University of California, Berkeley, California, USA.
²⁹ Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong, China.
³⁰ Charles University, Faculty of Mathematics and Physics, Prague, Czech Republic.
³¹ University of Science and Technology of China, Hefei, China.
³² Sun Yat-Sen (Zhongshan) University, Guangzhou, China.
³³ Joseph Henry Laboratories, Princeton University, Princeton, New Jersey, USA.
³⁴ California Institute of Technology, Pasadena, California, USA.
³⁵ College of William and Mary, Williamsburg, Virginia, USA.
³⁶ Xi'an Jiaotong University, Xi'an, China.
³⁷ Department of Physics, College of Science and Technology, Temple University, Philadelphia, Pennsylvania, USA.
³⁸ Instituto de Física, Pontificia Universidad Católica de Chile, Santiago, Chile.
³⁹ Department of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute, Troy, New York, USA.
⁴⁰ China General Nuclear Power Group, China.
⁴¹ College of Electronic Science and Engineering, National University of Defense Technology, Changsha, China.
⁴² Iowa State University, Ames, Iowa, USA.
⁴³ Chongqing University, Chongqing, China.

PMID: 26918980
DOI: 10.1103/PhysRevLett.116.061801

Erratum in

Erratum: Measurement of the reactor antineutrino flux and spectrum at Daya Bay [Phys. Rev. Lett. 116, 061801 (2016)].
An FP, Anonymous; Daya Bay Collaboration. An FP, et al. Phys Rev Lett. 2017 Mar 3;118(9):099902. doi: 10.1103/PhysRevLett.118.099902. Epub 2017 Mar 1. Phys Rev Lett. 2017. PMID: 28306297

Abstract

This Letter reports a measurement of the flux and energy spectrum of electron antineutrinos from six 2.9 GWth 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 β decay (IBD) candidates were detected in the near and far halls, respectively. The measured IBD yield is (1.55±0.04) ×10(-18) cm(2) GW(-1) day(-1) or (5.92±0.14) ×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 2σ over the full energy range with a local significance of up to ∼4σ between 4-6 MeV. A reactor antineutrino spectrum of IBD reactions is extracted from the measured positron energy spectrum for model-independent predictions.

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Measurement of the Reactor Antineutrino Flux and Spectrum at Daya Bay

Affiliations

Measurement of the Reactor Antineutrino Flux and Spectrum at Daya Bay

Authors

Affiliations

Erratum in

Abstract

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