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Improved measurement of electron antineutrino disappearance at Daya Bay

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【作者】 安丰鹏安琪白景芝A.B.BalantekinH.R.BandW.BerigueteM.BishaiS.BlythR.L.Brown曹国富曹俊R.CarrW.T.Chan常劲帆Y.ChangC.Chasman陈和生H.Y.Chen陈申见陈少敏陈潇聪陈晓辉陈晓苏陈羽陈义学J.J.Cherwinka朱明中J.P.Cummings邓子艳丁雅韵M.V.DiwanE.Draeger杜小峰D.DwyerW.R.EdwardsS.R.Ely方绍东付金煜付在伟葛良全R.L.Gi11M.Gonchar龚光华宫辉Y.A.Gornushkin顾文强关梦云郭新恒R.W.HackenburgR.L.HahnS.Hans郝慧峰何苗贺青K.M.Heeger衡月昆P.HinrichsY.K.HorY.B.HsiungB.z.Hu胡涛黄翰雄H.z.Huang黄性涛P.HuberV.Issakovz.IsvanD.E.JaffeS.Jetter季筱璐季向盼姜海静焦健斌R.A.Johnson康丽S.H.KettellM.Kramer关健强郭文伟郭人能C.Y.Lai赖万昌W.H.LaiK.LauL.LebanowskiJ.Lee雷瑞霆R.Leitner梁干庄梁嘉怡C.A.Lewis李飞李高嵩李秋菊李卫东李小波李小男李学潜李仪李志斌梁昊林政儒C.L.LinS.K.Lin林延畅凌家杰J.M.LinkL.LittenbergB.R.LittlejohnD.W.Liu刘金昌刘江来刘颖彪陆昌国路浩奇陆永康K.B.Luk马秋梅马续波马骁妍马宇蒨K.T.McDonaldM.C.McFarlaneR.D.McKeownY.MengD.MohapatraY.NakajimaJ.NapolitanoD.NaumovI.Nemchenok倪浩然W.K.Ngai聂阳波宁哲J.P.Ochoa-RicouxA.OlshevskiS.PattonV.PecJ.C.PengL.E.PiilonenL.Pinsky潘振声齐法制祁鸣钱鑫N.Raper任杰R.RoseroB.Roskovec阮锡超邵贝贝师恺H.Steiner孙功星孙吉良N.Tagg谭耀豪H.K.Tanaka唐晓H.ThemannY.TorunS.TrentalangeO.TsaiK.V.TsangR.H.M.TsangC.E.TullY.C.TungB.VirenV.Vorobe1C.H.Wang王灵淑王玲玉王龙泽王萌王乃彦王瑞光W.Wang王玺王贻芳王喆王铮王志民D.M.Webber魏瀚宇魏亚东温良剑K.WhisnantC.G.WhiteL.WhiteheadY.WilliamsonT.WiseH.L.H.WongE.T.WorcesterF.F.Wu吴群习建博夏冬梅邢志忠徐建一徐晶徐吉磊徐晔薛涛杨长根杨雷叶梅M.YehY.S.YehB.L.Young于泽源占亮C.Zhang章飞虹张家文张清民张书华张一纯张银鸿张一心张志坚张子平张智勇赵洁赵庆旺赵豫斌郑磊钟玮丽周莉周祖英庄红林邹佳恒

【Author】 F. P. An 1 Q. An 2 J. Z. Bai 1 A. B. Balantekin 3 H. R. Band 3 W. Beriguete 4 M. Bishai 4 S. Blyth 5 R. L. Brown 4 G. F. Cao 1 J. Cao 1 R. Carr 6 W. T. Chan 4 J. F. Chang 1 Y. Chang 5 C. Chasman 4 H. S. Chen 1 H. Y. Chen 7 S. J. Chen 8 S. M. Chen 9 X. C. Chen 10 X. H. Chen 1 X. S. Chen 1 Y. Chen 11 Y. X. Chen 12 J. J. Cherwinka 3 M. C. Chu 10 J. P. Cummings 13 Z. Y. Deng 1 Y. Y. Ding 1 M. V. Diwan 4 E. Draeger 14 X. F. Du 1 D. Dwyer 6 W. R. Edwards 15,16 S. R. Ely 17 S. D. Fang 8 J. Y. Fu 1 Z. W. Fu 8 L. Q. Ge 18 R. L. Gill 4 M. Gonchar 19 G. H. Gong 9 H. Gong 9 Y. A. Gornushkin 19 W. Q. Gu 20 M. Y. Guan 1 X. H. Guo 21 R. W. Hackenburg 4 R. L. Hahn 4 S. Hans 4 H. F. Hao 2 M. He 1 Q. He 22 K. M. Heeger 3 Y. K. Heng 1 P. Hinrichs 3 Y. K. Hor 23 Y. B. Hsiung 24 B. Z. Hu 7 T. Hu 1 H. X. Huang 25 H. Z. Huang 26 X. T. Huang 27 P. Huber 23 V. Issakov 4 Z. Isvan 4 D. E. Jaffe 4 S. Jetter 1 X. L. Ji 1 X. P. Ji 28 H. J. Jiang 18 J. B. Jiao 27 R. A. Johnson 29 L. Kang 30 S. H. Kettell 4 M. Kramer 15,16 K. K. Kwan 10 M. W. Kwok 10 T. Kwok31 C. Y. Lai 24 W. C. Lai 18 W. H. Lai 7 K. Lau 32 L. Lebanowski 32 J. Lee 15 R. T. Lei 30 R. Leitner 33 J. K. C. Leung 31 K. Y. Leung 31 C. A. Lewis 3 F. Li 1 G. S. Li 20 Q. J. Li 1 W. D. Li 1 X. B. Li 1 X. N. Li 1 X. Q. Li 28 Y. Li 30 Z. B. Li 34 H. Liang 2 C. J. Lin 15 G. L. Lin 7 S. K. Lin 32 Y. C. Lin 10,18,31 J. J. Ling 4 J. M. Link 23 L. Littenberg 4 B. R. Littlejohn 3,29 D. W. Liu 17 J. C. Liu 1 J. L. Liu 20 Y. B. Liu 1 C. Lu 22 H. Q. Lu 1 A. Luk 10 K. B. Luk 15,16 Q. M. Ma 1 X. B. Ma 12 X. Y. Ma 1 Y. Q. Ma 1 K. T. McDonald 22 M. C. McFarlane 3 R. D. McKeown 6,35 Y. Meng 23 D. Mohapatra 23 Y. Nakajima 15 J. Napolitano 36 D. Naumov 19 I. Nemchenok 19 H. Y. Ngai 31 W. K. Ngai 17 Y. B. Nie 25 Z. Ning 1 J. P. Ochoa-Ricoux 15 A. Olshevski 19 S. Patton 15 V. Pec 33 J. C. Peng 17 L. E. Piilonen 23 L. Pinsky 32 C. S. J. Pun 31 F. Z. Qi 1 M. Qi 8 X. Qian 6 N. Raper 36 J. Ren 25 R. Rosero 4 B. Roskovec 33 X. C. Ruan 25 B. B. Shao 9 K. Shih 10 H. Steiner 15,16 G. X. Sun 1 J. L. Sun 37 N. Tagg 4 Y. H. Tam 10 H. K. Tanaka 4 X. Tang 1 H. Themann 4 Y. Torun 14 S. Trentalange 26 O. Tsai 26 K. V. Tsang 15 R. H. M. Tsang 6 C. E. Tull 15 Y. C. Tung 24 B. Viren 4 V. Vorobel 33 C. H. Wang 5 L. S. Wang 1 L. Y. Wang 1 L. Z. Wang 12 M. Wang 27 N. Y. Wang 21 R. G. Wang 1 W. Wang 35 X. Wang 9 Y. F. Wang 1 Z. Wang 9 Z. Wang 1 Z. M. Wang 1 D. M. Webber 3 H. Y. Wei 9 Y. D. Wei 30 L. J. Wen 1 K. Whisnant 38 C. G. White 14 L. Whitehead 32 Y. Williamson 4 T. Wise 3 H. L. H. Wong 15,16 E. T. Worcester 4 F. F. Wu 6 Q. Wu 27 J. B. Xi 2 D. M. Xia 1 Z. Z. Xing 1 J. Xu 10 J. Xu 21 J. L. Xu 1Y. Xu 28 T. Xue 9 C. G. Yang 1 L. Yang 30 M. Ye 1 M. Yeh 4 Y. S. Yeh 7 B. L. Young 38 Z. Y. Yu 1 L. Zhan 1 C. Zhang 4 F. H. Zhang 1 J. W. Zhang 1 Q. M. Zhang 39 S. H. Zhang 1 Y. C. Zhang 2 Y. H. Zhang 1 Y. X. Zhang 37 Z. J. Zhang 30 Z. P. Zhang 2 Z. Y. Zhang 1 J. Zhao 1 Q. W. Zhao 1 Y. B. Zhao 1 L. Zheng 2 W. L. Zhong 1 L. Zhou 1 Z. Y. Zhou 25 H. L. Zhuang 1 J. H. Zou 1 1 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 2 University of Science and Technology of China, Hefei 230026 3 University of Wisconsin, Madison, WI 4 Brookhaven National Laboratory, Upton, NY 5 National United University, Miao-Li 6 California Institute of Technology, Pasadena, CA 7 Institute of Physics, National Chiao-Tung University, Hsinchu 8 Nanjing University, Nanjing 210093 9 Department of Engineering Physics, Tsinghua University, Beijing 100084 10 Chinese University of Hong Kong, Hong Kong 11 Shenzhen Univeristy, Shenzhen 518060 12 North China Electric Power University, Beijing 102206 13 Siena College, Loudonville, NY 14 Department of Physics, Illinois Institute of Technology, Chicago, IL 15 Lawrence Berkeley National Laboratory, Berkeley, CA 16 Department of Physics, University of California, Berkeley, CA 17 Department of Physics, University of Illinois at Urbana-Champaign, Urbana, IL 18 Chengdu University of Technology, Chengdu 610059 19 Joint Institute for Nuclear Research, Dubna, Moscow Region 20 Shanghai Jiao Tong University, Shanghai 200240 21 Beijing Normal University, Beijing 100875 22 Joseph Henry Laboratories, Princeton University, Princeton, NJ 23 Center for Neutrino Physics, Virginia Tech, Blacksburg, VA 24 Department of Physics, National Taiwan University, Taipei 25 China Institute of Atomic Energy, Beijing 102413 26 University of California, Los Angeles, CA 27 Shandong University, Jinan 250100 28 School of Physics, Nankai University, Tianjin 300371 29 University of Cincinnati, Cincinnati, OH 30 Dongguan University of Technology, Dongguan 523808 31 Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong 32 Department of Physics, University of Houston, Houston, TX 33 Charles University, Faculty of Mathematics and Physics, Prague 34 Sun Yat-Sen (Zhongshan) University, Guangzhou 510275 35 College of William and Mary, Williamsburg, VA 36 Rensselaer Polytechnic Institute, Troy, NY 37 China Guangdong Nuclear Power Group, Shenzhen 518028 38 Iowa State University, Ames, IA 39 Xi’an Jiaotong University, Xi’an 710049

【机构】 Institute of High Energy Physics,Chinese Academy of SciencesUniversity of Science and Technology of ChinaUniversity of WisconsinBrookhaven National LaboratoryNational United UniversityCalifornia Institute of TechnologyNanjing UniversityDepartment of Engineering Physics,Tsinghua UniversityChinese University of Hong KongShenzhen UniveristyNorth China Electric Power UniversitySiena CollegeDepartment of Physics,Illinois Institute of TechnologyLawrence Berkeley National LaboratoryDepartment of Physics,University of CaliforniaDepartment of Physics,University of Illinois at Urbana-ChampaignChengdu University of TechnologyJoint Institute for Nuclear ResearchShanghai Jiao Tong UniversityBeijing Normal UniversityJoseph Henry Laboratories,Princeton UniversityCenter for Neutrino Physics,Virginia TechDepartment of Physics,National Taiwan UniversityInstitute of Physics,National Chiao-Tung UniversityChina Institute of Atomic EnergyUniversity of CaliforniaShandong UniversitySchool of Physics,Nankai UniversityUniversity of CincinnatiDongguan University of TechnologyDepartment of Physics,The University of Hong KongDepartment of Physics,University of HoustonCharles University,Faculty of Mathematics and PhysicsSun Yat-Sen(Zhongshan)UniversityCollege of William and MaryRensselaer Polytechnic InstituteChina Guangdong Nuclear Power GroupIowa State UniversityXi’an Jiaotong University

【摘要】 We report an improved measurement of the neutrino mixing angle θ13 from the Daya Bay Reactor Neutrino Experiment. We exclude a zero value for sin2 θ13 with a significance of 7.7 standard deviations. Electron antineutrinos from six reactors of 2.9 GWth were detected in six antineutrino detectors deployed in two near (flux-weighted baselines of 470 m and 576 m) and one far (1648 m) underground experimental halls. Using 139 days of data, 28909 (205308) electron antineutrino candidates were detected at the far hall (near halls). The ratio of the observed to the expected number of antineutrinos assuming no oscillations at the far hall is 0.944±0.007(stat.)±0.003(syst.). An analysis of the relative rates in six detectors finds sin2 θ13 =0.089±0.010(stat.)±0.005(syst.) in a three-neutrino framework.

【Abstract】 We report an improved measurement of the neutrino mixing angle θ13 from the Daya Bay Reactor Neutrino Experiment. We exclude a zero value for sin2 θ13 with a significance of 7.7 standard deviations. Electron antineutrinos from six reactors of 2.9 GWth were detected in six antineutrino detectors deployed in two near (flux-weighted baselines of 470 m and 576 m) and one far (1648 m) underground experimental halls. Using 139 days of data, 28909 (205308) electron antineutrino candidates were detected at the far hall (near halls). The ratio of the observed to the expected number of antineutrinos assuming no oscillations at the far hall is 0.944±0.007(stat.)±0.003(syst.). An analysis of the relative rates in six detectors finds sin2 θ13 =0.089±0.010(stat.)±0.005(syst.) in a three-neutrino framework.

【基金】 Supported by the Ministry of Science and Technology of China;the United States Department of Energy;the Chinese Academy of Sciences;the National Natural Science Foundation of China;the Guangdong provincial government;the Shenzhen municipal government;the China Guangdong Nuclear Power Group;Shanghai Laboratory for Particle Physics and Cosmology;the Research Grants Council of the Hong Kong Special Administrative Region of China;University Development Fund of The University of Hong Kong;the MOE program for Research of Excellence at NTU, NCTU;NSC fund support from Taipei;the U.S. National Science Foundation;the Alfred P. Sloan Foundation;the Ministry of Education;Youth and Sports of the Czech Republic;the Czech Science Foundation;the Joint Institute of Nuclear Research in Dubna,Russia
  • 【文献出处】 Chinese Physics C ,中国物理C , 编辑部邮箱 ,2013年01期
  • 【分类号】O572.321
  • 【下载频次】169
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