Improved measurement of electron antineutrino disappearance at Daya Bay

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Title:	Improved measurement of electron antineutrino disappearance at Daya Bay
Authors:	彭仁傑;An, Q.;Balantekin, A. B.;Band, H. R.;Beriguete, W.;Brown, R. L.;Cao, J.;Carr, R.;Chang, J. F.;Chen, H. Y.;Chen, S. J.;Chen, X. S.;Chen, Y.;Chen, Y. X.;Ding, Y. Y.;Diwan, M. V.;Dwyer, D.;Edwards, W. R.;Fang, S. D.;Fu, Z. W.;Ge, L. Q.;Gill, R. L.;Gong, H.;Guan, M. Y.;Guo, X. H.;He, M.;He, Q.;Hinrichs, P.;Hsiung, Y. B.;Hu, T.;Huang, H. X.;Huang, X. T.;Jaffe, D. E.;Jetter, S.;Jiao, J. B.;Kettell, S. H.;Kwan, K. K.;Kwok, M. W.;Lau, K.;Lebanowski, L.;Lee, J.;Lei, R. T.;Leung, K. Y.;Li, F.;Li, X. Q.;Li, Z. B.;Lin, S. K.;Littenberg, L.;Littlejohn, B. R.;Liu, D. W.;Lu, C.;Lu, H. Q.;McKeown, R. D.;Meng, Y.;Mohapatra, D.;Naumov, D.;Ngai, H. Y.;Ngai, W. K.;Nie, Y. B.;Ochoa-Ricoux, J. P.;Patton, S.;Pec, V.;Piilonen, L. E.;Pinsky, L.;Pun, C. S. J.;Qi, M.;Raper, N.;Ren, J.;Ruan, X. C.;Sun, G. X.;Sun, J. L.;Tagg, N.;Tam, Y. H.;Torun, Y.;Trentalange, S.;Tsai, O.;Tsang, K. V.;Viren, B.;Vorobel, V.;Wang, L. S.;Wang, L. Y.;Wang, M.;Wang, X.;Wang, Z.;Webber, D. M.;Whitehead, L.;Wong, H. L. H.;Worcester, E. T.;Wu, F. F.;Xing, Z. Z.;Yeh, Y. S.;Zhan, L.;Zhang, C.;Zhang, Y. H.;Zhang, Y. X.;Zhang, Z. J.;Zhang, Z. Y.;Zhao, J.;Zhao, Q. W.;Zhong, W. L.;Zhou, Z. Y.
Contributors:	高能與強場物理研究中心
Keywords:	Antineutrinos;Daya Bay;Detectors;Halls;neutrino;neutrino mixing;Neutrinos;oscillation;Oscillations;PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;reactor;Reactors;Standard deviation;Underground;中微子实验;中微子探测器;反应堆;基线检测;大亚湾;测量;电子中微子;相对速率
Date:	2013-01-01
Issue Date:	2026-04-23 12:02:27 (UTC+8)
Publisher:	IOP Publishing Ltd.;United States
Abstract:	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 sin22θ13 with a significance of 7.7 standard deviations. Electron antineutrinos from six reactors of 2.9 GWm th 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 sin22θ13=0.089± 0.010（stat.）±0.005（syst.） in a three-neutrino framework. 其他題名： Chinese Physica C 出版者： United States 出版日期： 2013-01-01 出處： Chinese physics C, 2013-01, Vol.37 (1), p.1-20 資源來源： Institute of Physics Journals 識別號： ISSN: 1674-1137 識別號： EISSN: 0254-3052 識別號： DOI: 10.1088/1674-1137/37/1/011001
Appears in Collections:	[Center for High Energy and High Field Physics (CHiP)] journal & Dissertation

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