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. 2016 Oct 7;117(15):151802.
doi: 10.1103/PhysRevLett.117.151802. Epub 2016 Oct 7.

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

F P An  1 , A B Balantekin  2 , H R Band  3 , M Bishai  4 , S Blyth  5   6 , D Cao  7 , G F Cao  8 , J Cao  8 , W R Cen  8 , Y L Chan  9 , J F Chang  8 , L C Chang  10 , Y Chang  6 , H S Chen  8 , Q Y Chen  11 , S M Chen  12 , Y X Chen  13 , Y Chen  14 , J-H Cheng  10 , J Cheng  11 , Y P Cheng  8 , Z K Cheng  15 , J J Cherwinka  2 , M C Chu  9 , A Chukanov  16 , J P Cummings  17 , J de Arcos  18 , Z Y Deng  8 , X F Ding  8 , Y Y Ding  8 , M V Diwan  4 , M Dolgareva  16 , J Dove  19 , D A Dwyer  20 , W R Edwards  20 , R Gill  4 , M Gonchar  16 , G H Gong  12 , H Gong  12 , M Grassi  8 , W Q Gu  21 , M Y Guan  8 , L Guo  12 , R P Guo  8 , X H Guo  22 , Z Guo  12 , R W Hackenburg  4 , R Han  13 , S Hans  4 , M He  8 , K M Heeger  3 , Y K Heng  8 , A Higuera  23 , Y K Hor  24 , Y B Hsiung  5 , B Z Hu  5 , T Hu  8 , W Hu  8 , E C Huang  19 , H X Huang  25 , X T Huang  11 , P Huber  24 , W Huo  26 , G Hussain  12 , D E Jaffe  4 , P Jaffke  24 , K L Jen  10 , S Jetter  8 , X P Ji  12   27 , X L Ji  8 , J B Jiao  11 , R A Johnson  28 , J Joshi  4 , L Kang  29 , S H Kettell  4 , S Kohn  30 , M Kramer  20   30 , K K Kwan  9 , M W Kwok  9 , T Kwok  31 , T J Langford  3 , K Lau  23 , L Lebanowski  12 , J Lee  20 , J H C Lee  31 , R T Lei  29 , R Leitner  32 , J K C Leung  31 , C Li  11 , D J Li  26 , F Li  8 , G S Li  21 , Q J Li  8 , S Li  29 , S C Li  24   31 , W D Li  8 , X N Li  8 , Y F Li  8 , Z B Li  15 , H Liang  26 , C J Lin  20 , G L Lin  10 , S Lin  29 , S K Lin  23 , Y-C Lin  5 , J J Ling  15 , J M Link  24 , L Littenberg  4 , B R Littlejohn  18 , D W Liu  23 , J L Liu  21 , J C Liu  8 , C W Loh  7 , C Lu  33 , H Q Lu  8 , J S Lu  8 , K B Luk  20   30 , Z Lv  34 , Q M Ma  8 , X Y Ma  8 , X B Ma  13 , Y Q Ma  8 , Y Malyshkin  35 , D A Martinez Caicedo  18 , K T McDonald  33 , R D McKeown  36   37 , I Mitchell  23 , M Mooney  4 , Y Nakajima  20 , J Napolitano  38 , D Naumov  16 , E Naumova  16 , H Y Ngai  31 , Z Ning  8 , J P Ochoa-Ricoux  35 , A Olshevskiy  16 , H-R Pan  5 , J Park  24 , S Patton  20 , V Pec  32 , J C Peng  19 , L Pinsky  23 , C S J Pun  31 , F Z Qi  8 , M Qi  7 , X Qian  4 , N Raper  39 , J Ren  25 , R Rosero  4 , B Roskovec  32 , X C Ruan  25 , H Steiner  20   30 , G X Sun  8 , J L Sun  40 , W Tang  4 , D Taychenachev  16 , K Treskov  16 , K V Tsang  20 , C E Tull  20 , N Viaux  35 , B Viren  4 , V Vorobel  32 , C H Wang  6 , M Wang  11 , N Y Wang  22 , R G Wang  8 , W Wang  15   37 , X Wang  41 , Y F Wang  8 , Z Wang  12 , Z Wang  8 , Z M Wang  8 , H Y Wei  12 , L J Wen  8 , K Whisnant  42 , C G White  18 , L Whitehead  23 , T Wise  2 , H L H Wong  20   30 , S C F Wong  15 , E Worcester  4 , C-H Wu  10 , Q Wu  11 , W J Wu  8 , D M Xia  43 , J K Xia  8 , Z Z Xing  8 , J Y Xu  9 , J L Xu  8 , Y Xu  15 , T Xue  12 , C G Yang  8 , H Yang  7 , L Yang  29 , M S Yang  8 , M T Yang  11 , M Ye  8 , Z Ye  23 , M Yeh  4 , B L Young  42 , Z Y Yu  8 , S Zeng  8 , L Zhan  8 , C Zhang  4 , H H Zhang  15 , J W Zhang  8 , Q M Zhang  34 , X T Zhang  8 , Y M Zhang  12 , Y X Zhang  40 , Y M Zhang  15 , Z J Zhang  29 , Z Y Zhang  8 , Z P Zhang  26 , J Zhao  8 , Q W Zhao  8 , Y B Zhao  8 , W L Zhong  8 , L Zhou  8 , N Zhou  26 , H L Zhuang  8 , J H Zou  8 ; Daya Bay Collaboration
Affiliations
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. .
Free article

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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