A side-by-side comparison of Daya Bay antineutrino detectors

preprint2012arXivOpen access
Daya Bay CollaborationF. P. AnQ. AnJ. Z. BaiA. B. BalantekinH. R. BandW. BerigueteM. BishaiS. BlythR. L. BrownG. F. CaoJ. CaoR. CarrJ. F. ChangY. ChangC. ChasmanH. S. ChenS. J. ChenS. M. ChenX. C. ChenX. H. ChenX. S. ChenY. ChenJ. J. CherwinkaM. C. ChuJ. P. CummingsZ. Y. DengY. Y. DingM. V. DiwanE. DraegerX. F. DuD. DwyerW. R. EdwardsS. R. ElyS. D. FangJ. Y. FuZ. W. FuL. Q. GeR. L. GillM. GoncharG. H. GongH. GongY. A. GornushkinL. S. GreenlerW. Q. GuM. Y. GuanX. H. GuoR. W. HackenburgR. L. HahnS. HansH. F. HaoM. HeQ. HeW. S. HeK. M. HeegerY. K. HengP. HinrichsT. H. HoY. K. HorY. B. HsiungB. Z. HuT. HuH. X. HuangH. Z. HuangP. W. HuangX. HuangX. T. HuangP. HuberD. E. JaffeS. JetterX. L. JiX. P. JiH. J. JiangW. Q. JiangJ. B. JiaoR. A. JohnsonL. KangS. H. KettellM. KramerK. K. KwanM. W. KwokT. KwokC. Y. LaiW. C. LaiW. H. LaiK. LauL. LebanowskiM. K. P. LeeR. LeitnerJ. K. C. LeungK. Y. LeungC. A. LewisF. LiG. S. LiJ. LiQ. J. LiS. F. LiW. D. LiX. B. LiX. N. LiX. Q. LiY. LiZ. B. LiH. LiangC. J. LinG. L. LinS. K. LinS. X. LinY. C. LinJ. J. LingJ. M. LinkL. LittenbergB. R. LittlejohnB. J. LiuD. W. LiuJ. C. LiuJ. L. LiuS. LiuX. LiuY. B. LiuC. LuH. Q. LuA. LukK. B. LukX. L. LuoL. H. MaQ. M. MaX. Y. MaY. Q. MaB. MayesK. T. McDonaldM. C. McFarlaneR. D. McKeownY. MengD. MohapatraY. NakajimaJ. NapolitanoD. NaumovI. NemchenokC. NewsomH. Y. NgaiW. K. NgaiY. B. NieZ. NingJ. P. Ochoa-RicouxA. OlshevskiA. PagacS. PattonV. PecJ. C. PengL. E. PiilonenL. PinskyC. S. J. PunF. Z. QiM. QiX. QianR. RoseroB. RoskovecX. C. RuanB. SeilhanB. B. ShaoK. ShihH. SteinerP. StolerG. X. SunJ. L. SunY. H. TamH. K. TanakaX. TangY. TorunS. TrentalangeO. TsaiK. V. TsangR. H. M. TsangC. TullB. VirenV. VorobelC. H. WangL. S. WangL. Y. WangM. WangN. Y. WangR. G. WangW. WangX. WangY. F. WangZ. WangZ. M. WangD. M. WebberY. D. WeiL. J. WenD. L. WenmanK. WhisnantC. G. WhiteL. WhiteheadJ. WilhelmiT. WiseH. L. H. WongJ. WongF. F. WuQ. WuJ. B. XiD. M. XiaQ. XiaoZ. Z. XingG. XuJ. XuJ. L. XuY. XuT. XueC. G. YangL. YangM. YeM. YehY. S. YehB. L. YoungZ. Y. YuL. ZhanC. ZhangF. H. ZhangJ. W. ZhangQ. M. ZhangS. H. ZhangY. C. ZhangY. H. ZhangY. X. ZhangZ. J. ZhangZ. P. ZhangZ. Y. ZhangH. ZhaoJ. ZhaoQ. W. ZhaoY. B. ZhaoL. ZhengW. L. ZhongL. ZhouY. Z. ZhouZ. Y. ZhouH. L. ZhuangJ. H. Zou

Abstract

The Daya Bay Reactor Neutrino Experiment is designed to determine precisely the neutrino mixing angle θ13θ_{13} with a sensitivity better than 0.01 in the parameter sin22θ13^22θ_{13} at the 90% confidence level. To achieve this goal, the collaboration will build eight functionally identical antineutrino detectors. The first two detectors have been constructed, installed and commissioned in Experimental Hall 1, with steady data-taking beginning September 23, 2011. A comparison of the data collected over the subsequent three months indicates that the detectors are functionally identical, and that detector-related systematic uncertainties exceed requirements.

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