Improved Search for a Light Sterile Neutrino with the Full Configuration of the Daya Bay Experiment

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

6}, D Cao⁷, G F Cao⁸, J Cao⁸, W R Cen⁸, Y L Chan⁹, J F Chang⁸, L C Chang¹⁰, Y Chang⁶, H S Chen⁸, Q Y Chen¹¹, S M Chen¹², Y X Chen¹³, Y Chen¹⁴, J-H Cheng¹⁰, J Cheng¹¹, Y P Cheng⁸, Z K Cheng¹⁵, J J Cherwinka², M C Chu⁹, A Chukanov¹⁶, J P Cummings¹⁷, J de Arcos¹⁸, Z Y Deng⁸, X F Ding⁸, Y Y Ding⁸, M V Diwan⁴, M Dolgareva¹⁶, J Dove¹⁹, D A Dwyer²⁰, W R Edwards²⁰, R Gill⁴, M Gonchar¹⁶, G H Gong¹², H Gong¹², M Grassi⁸, W Q Gu²¹, M Y Guan⁸, L Guo¹², R P Guo⁸, X H Guo²², Z Guo¹², R W Hackenburg⁴, R Han¹³, S Hans⁴, M He⁸, K M Heeger³, Y K Heng⁸, A Higuera²³, Y K Hor²⁴, Y B Hsiung⁵, B Z Hu⁵, T Hu⁸, W Hu⁸, E C Huang¹⁹, H X Huang²⁵, X T Huang¹¹, P Huber²⁴, W Huo²⁶, G Hussain¹², D E Jaffe⁴, P Jaffke²⁴, K L Jen¹⁰, S Jetter⁸, X P Ji^{12

27}, X L Ji⁸, J B Jiao¹¹, R A Johnson²⁸, J Joshi⁴, L Kang²⁹, S H Kettell⁴, S Kohn³⁰, M Kramer^{20

30}, K K Kwan⁹, M W Kwok⁹, T Kwok³¹, T J Langford³, K Lau²³, L Lebanowski¹², J Lee²⁰, J H C Lee³¹, R T Lei²⁹, R Leitner³², J K C Leung³¹, C Li¹¹, D J Li²⁶, F Li⁸, G S Li²¹, Q J Li⁸, S Li²⁹, S C Li^{24

31}, W D Li⁸, X N Li⁸, Y F Li⁸, Z B Li¹⁵, H Liang²⁶, C J Lin²⁰, G L Lin¹⁰, S Lin²⁹, S K Lin²³, Y-C Lin⁵, J J Ling¹⁵, J M Link²⁴, L Littenberg⁴, B R Littlejohn¹⁸, D W Liu²³, J L Liu²¹, J C Liu⁸, C W Loh⁷, C Lu³³, H Q Lu⁸, J S Lu⁸, K B Luk^{20

30}, Z Lv³⁴, Q M Ma⁸, X Y Ma⁸, X B Ma¹³, Y Q Ma⁸, Y Malyshkin³⁵, D A Martinez Caicedo¹⁸, K T McDonald³³, R D McKeown^{36

37}, I Mitchell²³, M Mooney⁴, Y Nakajima²⁰, J Napolitano³⁸, D Naumov¹⁶, E Naumova¹⁶, H Y Ngai³¹, Z Ning⁸, J P Ochoa-Ricoux³⁵, A Olshevskiy¹⁶, H-R Pan⁵, J Park²⁴, S Patton²⁰, V Pec³², J C Peng¹⁹, L Pinsky²³, C S J Pun³¹, F Z Qi⁸, M Qi⁷, X Qian⁴, N Raper³⁹, J Ren²⁵, R Rosero⁴, B Roskovec³², X C Ruan²⁵, H Steiner^{20

30}, G X Sun⁸, J L Sun⁴⁰, W Tang⁴, D Taychenachev¹⁶, K Treskov¹⁶, K V Tsang²⁰, C E Tull²⁰, N Viaux³⁵, B Viren⁴, V Vorobel³², C H Wang⁶, M Wang¹¹, N Y Wang²², R G Wang⁸, W Wang^{15

37}, X Wang⁴¹, Y F Wang⁸, Z Wang¹², Z Wang⁸, Z M Wang⁸, H Y Wei¹², L J Wen⁸, K Whisnant⁴², C G White¹⁸, L Whitehead²³, T Wise², H L H Wong^{20

30}, S C F Wong¹⁵, E Worcester⁴, C-H Wu¹⁰, Q Wu¹¹, W J Wu⁸, D M Xia⁴³, J K Xia⁸, Z Z Xing⁸, J Y Xu⁹, J L Xu⁸, Y Xu¹⁵, T Xue¹², C G Yang⁸, H Yang⁷, L Yang²⁹, M S Yang⁸, M T Yang¹¹, M Ye⁸, Z Ye²³, M Yeh⁴, B L Young⁴², Z Y Yu⁸, S Zeng⁸, L Zhan⁸, C Zhang⁴, H H Zhang¹⁵, J W Zhang⁸, Q M Zhang³⁴, X T Zhang⁸, Y M Zhang¹², Y X Zhang⁴⁰, Y M Zhang¹⁵, Z J Zhang²⁹, Z Y Zhang⁸, Z P Zhang²⁶, J Zhao⁸, Q W Zhao⁸, Y B Zhao⁸, W L Zhong⁸, L Zhou⁸, N Zhou²⁶, H L Zhuang⁸, J H Zou⁸; Daya Bay Collaboration

Affiliations

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

PMID: 27768341
DOI: 10.1103/PhysRevLett.117.151802

Free article

Improved Search for a Light Sterile Neutrino with the Full Configuration of the Daya Bay Experiment

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

Free article

. 2016 Oct 7;117(15):151802.

doi: 10.1103/PhysRevLett.117.151802. Epub 2016 Oct 7.

Authors

Affiliations

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

PMID: 27768341
DOI: 10.1103/PhysRevLett.117.151802

Abstract

This Letter reports an improved search for light sterile neutrino mixing in the electron antineutrino disappearance channel with the full configuration of the Daya Bay Reactor Neutrino Experiment. With an additional 404 days of data collected in eight antineutrino detectors, this search benefits from 3.6 times the statistics available to the previous publication, as well as from improvements in energy calibration and background reduction. A relative comparison of the rate and energy spectrum of reactor antineutrinos in the three experimental halls yields no evidence of sterile neutrino mixing in the 2×10^{-4}≲|Δm_{41}^{2}|≲0.3 eV^{2} mass range. The resulting limits on sin^{2}2θ_{14} are improved by approx imately a factor of 2 over previous results and constitute the most stringent constraints to date in the |Δm_{41}^{2}|≲0.2 eV^{2} region.

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Improved Search for a Light Sterile Neutrino with the Full Configuration of the Daya Bay Experiment

Affiliations

Improved Search for a Light Sterile Neutrino with the Full Configuration of the Daya Bay Experiment

Authors

Affiliations

Abstract

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