/ hep-ex arXiv:1610.04802


Measurement of electron antineutrino oscillation based on 1230 days of operation of the Daya Bay experiment


An, Feng Peng (East China U. Sci. Tech.) ; Balantekin, Akif Baha (Wisconsin U., Madison) ; Band, Henry Reyer (Yale U.) ; Bishai, Mary R (Brookhaven) ; Blyth, Simon (Natl. United U., Taiwan) ; Cao, De Wen (Nanjing U.) ; Cao, Guo Fu (Beijing, Inst. High Energy Phys.) ; Cao, Jun (Beijing, Inst. High Energy Phys.) ; Wuron, Cen (Beijing, Inst. High Energy Phys.) ; Chan, Yat Long (Hong Kong, Chinese U.) ; Chang, Jin Fan (Beijing, Inst. High Energy Phys.) ; Chang, Li Chu (Taiwan, Natl. Chiao Tung U.) ; Chang, Yun (Natl. United U., Taiwan) ; Chen, He Sheng (Beijing, Inst. High Energy Phys.) ; Chen, Quan You (Shandong U.) ; Chen, Shao Min (Tsinghua U., Beijing) ; Chen, Yixue (Beijing, North China Elec. Power U.) ; Chen, Yu (Shenzhen U.) ; Cheng, Jia Hua (Taiwan, Natl. Chiao Tung U.) ; Cheng, Jie (Shandong U.) ; Cheng, Ya Ping (Beijing, Inst. High Energy Phys.) ; Cheng, Zhaokan (Zhongshan U.) ; Cherwinka, JeffJ (Wisconsin U., Madison) ; Chu, Mingchung (Hong Kong, Chinese U.) ; Chukanov, Artem (Dubna, JINR) ; Cummings, JohnP (Siena Coll., Loudonville) ; Deng, Zi Yan (Beijing, Inst. High Energy Phys.) ; Xuefeng, Ding (Beijing, Inst. High Energy Phys.) ; Ding, Ya Yun (Beijing, Inst. High Energy Phys.) ; Diwan, Milind Vaman (Brookhaven) ; Dolgareva, Maria (Dubna, JINR) ; Dove, Jason (Illinois U., Urbana) ; Dwyer, Daniel A (LBL, Berkeley) ; Edwards, William R (LBL, Berkeley) ; Gonchar, Maxim (Dubna, JINR) ; Gill, Ronald (Brookhaven) ; Gong, Guang Hua (Tsinghua U., Beijing) ; Gong, Hui (Tsinghua U., Beijing) ; Grassi, Marco (Beijing, Inst. High Energy Phys.) ; Gu, Wen Qiang (Shanghai Jiaotong U.) ; Guan, Meng Yun (Beijing, Inst. High Energy Phys.) ; Guo, Lei (Tsinghua U., Beijing) ; Guo, Xin Heng (Beijing Normal U.) ; Guo, Ziyi (Tsinghua U., Beijing) ; Hussain, Ghulam (Tsinghua U., Beijing) ; Hackenburg, Robert W (Brookhaven) ; Han, Ran (Beijing, North China Elec. Power U.) ; Hans, Sunej (Bronx Community College) ; He, Miao (Beijing, Inst. High Energy Phys.) ; Heeger, Karsten Miklas (Yale U.) ; Heng, Yue Kun (Beijing, Inst. High Energy Phys.) ; Higuera, Aaron (Houston U.) ; Hor, Joseph Yuen-Keung (Virginia Tech.) ; Hsiung, Yee Bob (Taiwan, Natl. Taiwan. U.) ; Hu, Bei Zhen (Taiwan, Natl. Taiwan. U.) ; Hu, Tao (Beijing, Inst. High Energy Phys.) ; Hu, Wei (Beijing, Inst. High Energy Phys.) ; Huang, En Chuan (Illinois U., Urbana) ; Huang, Han Xiong (Beijing, Inst. Atomic Energy) ; Huang, Xing Tao (Shandong U.) ; Huber, Patrick (Virginia Tech.) ; Huo, Wenju (Hefei, CUST) ; Jaffe, David Edward (Brookhaven) ; Jaffke, Patrick (Virginia Tech.) ; Jen, Kou Lun (Taiwan, Natl. Chiao Tung U.) ; Jetter, Soeren (Beijing, Inst. High Energy Phys.) ; Ji, Xiang Pan (Tsinghua U., Beijing) ; Ji, Xiao Lu (Beijing, Inst. High Energy Phys.) ; Jiao, Jian Bin (Shandong U.) ; Johnson, Randy Allan (Cincinnati U.) ; Joshi, J (Brookhaven) ; Kang, Li (DongGuan U. Technol.) ; Kettell, Steven H (Brookhaven) ; Kohn, Sam (UC, Berkeley) ; Kramer, Matt (UC, Berkeley) ; Kwan, Kin Keung (Hong Kong, Chinese U.) ; Kwok, Man-wai (Hong Kong, Chinese U.) ; Kwok, Talent (Hong Kong U.) ; Loh, Changwei (Nanjing U.) ; Langford, Thomas J (Yale U.) ; Lau, Kwong Hon (Houston U.) ; Lebanowski, Logan (Tsinghua U., Beijing) ; Lee, Jason (LBL, Berkeley) ; Lee, Jenny HC (Hong Kong U.) ; Lei, Rui Ting (DongGuan U. Technol.) ; Leitner, Rupert (Charles U.) ; KC, Leung John (Hong Kong U.) ; Li, Chao (Shandong U.) ; Li, Deng Jie (Hefei, CUST) ; Li, Fei (Beijing, Inst. High Energy Phys.) ; Li, Gao Song (Shanghai Jiaotong U.) ; Li, Qiu Ju (Beijing, Inst. High Energy Phys.) ; Li, Shanfeng (DongGuan U. Technol.) ; Li, Sheng Chao (Virginia Tech.) ; Li, Wei Dong (Beijing, Inst. High Energy Phys.) ; Li, Xiao Nan (Beijing, Inst. High Energy Phys.) ; Li, Yu Feng (Beijing, Inst. High Energy Phys.) ; Li, Zhi Bing (Zhongshan U.) ; Liang, Hao (Hefei, CUST) ; Lin, Cheng-Ju Stephen (LBL, Berkeley) ; Lin, Guey Lin (Taiwan, Natl. Chiao Tung U.) ; Lin, Shengxin (DongGuan U. Technol.) ; Lin, Shih Kai (Houston U.) ; Lin, Yu-Cheng (Taiwan, Natl. Taiwan. U.) ; Ling, Jia Jie (Zhongshan U.) ; Link, Jonathan Marion (Virginia Tech.) ; Littenberg, Laurence S (Brookhaven) ; Littlejohn, Bryce R (IIT, Chicago) ; Liu, Da Wei (Houston U.) ; Liu, Jiang Lai (Shanghai Jiaotong U.) ; Liu, Jin Chang (Beijing, Inst. High Energy Phys.) ; Lu, Chang Guo (Princeton U.) ; Lu, Hao Qi (Beijing, Inst. High Energy Phys.) ; Lu, Jia Shu (Beijing, Inst. High Energy Phys.) ; Luk, Kam Biu (LBL, Berkeley) ; Lv, Zhipeng (Xian Jiaotong U.) ; Ma, Qiu Mei (Beijing, Inst. High Energy Phys.) ; Ma, Xiao Yan (Beijing, Inst. High Energy Phys.) ; Ma, Xu Bo (Beijing, North China Elec. Power U.) ; Ma, Yu Qian (Beijing, Inst. High Energy Phys.) ; Malyshkin, Yury (Chile U., Catolica) ; Martinez Caicedo, David A (IIT, Chicago) ; McDonald, Kirk T (Princeton U.) ; McKeown, Robert D (William-Mary Coll.) ; Mitchell, Ian (Houston U.) ; Mooney, Michael Ryan (Brookhaven) ; Nakajima, Yasuhiro (LBL, Berkeley) ; Napolitano, James Justin (Temple U.) ; Naumov, Dmitry Vadimovich (Dubna, JINR) ; Naumova, Elena (Dubna, JINR) ; Ngai, Jimmy (Hong Kong U.) ; Ning, Zhe (Beijing, Inst. High Energy Phys.) ; Olshevskiy, Alexander (Dubna, JINR) ; Ochoa-Ricoux, Juan Pedro (Chile U., Catolica) ; Pan, Hsiao-Ru (Taiwan, Natl. Taiwan. U.) ; Park, Jaewon (Virginia Tech.) ; Patton, Simon John (LBL, Berkeley) ; Pec, Viktor (Charles U.) ; Peng, Jen Chieh (Illinois U., Urbana) ; Pinsky, Lawrence S (Houston U.) ; Pun, Jason CS (Hong Kong U.) ; Qi, Fa Zhi (Beijing, Inst. High Energy Phys.) ; Qi, Ming (Nanjing U.) ; Qian, Xin (Brookhaven) ; Ren, Jie (Beijing, Inst. Atomic Energy) ; Raper, Neill (Rensselaer Poly.) ; Rosero, Richard (Brookhaven) ; Roskovec, Bedrich (Charles U.) ; Ruan, Xi Chao (Beijing, Inst. Atomic Energy) ; Steiner, Herbert M (LBL, Berkeley) ; Sun, Gong Xing (Beijing, Inst. High Energy Phys.) ; Sun, Ji Liang (CGNPC, Shenzhen) ; Tang, Wei (Brookhaven) ; Taychenachev, Dmitriy (Dubna, JINR) ; Treskov, Konstantin (Dubna, JINR) ; Tsang, Ka Vang (LBL, Berkeley) ; Tull, Craig E (LBL, Berkeley) ; Viaux, Nicolás (Chile U., Catolica) ; Viren, Brett Michael (Brookhaven) ; Vorobel, Vit (Charles U.) ; Wang, Chung Hsiang (Natl. United U., Taiwan) ; Wang, Meng (Shandong U.) ; Wang, Nai Yan (Beijing Normal U.) ; Wang, Rui Guang (Beijing, Inst. High Energy Phys.) ; Wang, Wei (William-Mary Coll.) ; Wang, Xi (Natl. U. Defense Tech., Hunan) ; Wang, Yi Fang (Beijing, Inst. High Energy Phys.) ; Wang, Zhe (Tsinghua U., Beijing) ; Wang, Zheng (Beijing, Inst. High Energy Phys.) ; Wang, Zhi Min (Beijing, Inst. High Energy Phys.) ; Wei, Han Yu (Tsinghua U., Beijing) ; Wen, Liang Jian (Beijing, Inst. High Energy Phys.) ; Whisnant, Kerry L (Iowa State U.) ; White, Christopher Gerard (IIT, Chicago) ; Whitehead, Lisa Angelika (Houston U.) ; Wise, Thomas S (Wisconsin U., Madison) ; Wong, Hin-Lok Henoch (LBL, Berkeley) ; Wong, Chan Fai (Zhongshan U.) ; Worcester, Elizabeth Turner (Brookhaven) ; Wu, Chia-Hao (Taiwan, Natl. Chiao Tung U.) ; Wu, Qun (Shandong U.) ; Wu, Wenjie (Beijing, Inst. High Energy Phys.) ; Xia, Dong Mei (Chongqing U.) ; Xia, Jing Kai (Beijing, Inst. High Energy Phys.) ; Xing, Zhi Zhong (Beijing, Inst. High Energy Phys.) ; Xu, Jian Yi (Hong Kong, Chinese U.) ; Xu, Ji Lei (Beijing, Inst. High Energy Phys.) ; Xu, Ye (Zhongshan U.) ; Xue, Tao (Tsinghua U., Beijing) ; Yang, Chang Gen (Beijing, Inst. High Energy Phys.) ; Yang, Haibo (Nanjing U.) ; Yang, Lei (DongGuan U. Technol.) ; Yang, Ma Sheng (Beijing, Inst. High Energy Phys.) ; Yang, Meng Ting (Shandong U.) ; Ye, Mei (Beijing, Inst. High Energy Phys.) ; Ye, Ziping (Houston U.) ; Yeh, Min Fang (Brookhaven) ; Young, Bing Lin (Iowa State U.) ; Yu, Ze Yuan (Beijing, Inst. High Energy Phys.) ; Zeng, Shan (Beijing, Inst. High Energy Phys.) ; Zhan, Liang (Beijing, Inst. High Energy Phys.) ; Zhang, Chao (Brookhaven) ; Zhang, Hong Hao (Zhongshan U.) ; Zhang, Jia Wen (Beijing, Inst. High Energy Phys.) ; Zhang, Qing Min (Xian Jiaotong U.) ; Zhang, Xuantong (Beijing, Inst. High Energy Phys.) ; Zhang, Yi Ming (Tsinghua U., Beijing) ; Zhang, Yi Xin (CGNPC, Shenzhen) ; Zhang, Yu Mei (Zhongshan U.) ; Zhang, Zhi Jian (DongGuan U. Technol.) ; Zhang, Zhi Yong (Beijing, Inst. High Energy Phys.) ; Zhang, Zi Ping (Hefei, CUST) ; Zhao, Jie (Beijing, Inst. High Energy Phys.) ; Qiwang, Zhao (Beijing, Inst. High Energy Phys.) ; Zhao, Yu Bin (Beijing, Inst. High Energy Phys.) ; Zhong, Wei Li (Beijing, Inst. High Energy Phys.) ; Zhou, Li (Beijing, Inst. High Energy Phys.) ; Zhou, Nan (Hefei, CUST) ; Zhuang, Hong Lin (Beijing, Inst. High Energy Phys.) ; Zou, Jia Heng (Beijing, Inst. High Energy Phys.) ; Jose, de Arcos (IIT, Chicago)

Pages: 44

Abstract: A measurement of electron antineutrino oscillation by the Daya Bay Reactor Neutrino Experiment is described in detail. Six 2.9-GW$_{\rm th}$ nuclear power reactors of the Daya Bay and Ling Ao nuclear power facilities served as intense sources of $\overline{\nu}_{e}$'s. Comparison of the $\overline{\nu}_{e}$ rate and energy spectrum measured by antineutrino detectors far from the nuclear reactors ($\sim$1500-1950 m) relative to detectors near the reactors ($\sim$350-600 m) allowed a precise measurement of $\overline{\nu}_{e}$ disappearance. More than 2.5 million $\overline{\nu}_{e}$ inverse beta decay interactions were observed, based on the combination of 217 days of operation of six antineutrino detectors (Dec. 2011--Jul. 2012) with a subsequent 1013 days using the complete configuration of eight detectors (Oct. 2012--Jul. 2015). The $\overline{\nu}_{e}$ rate observed at the far detectors relative to the near detectors showed a significant deficit, $R=0.949 \pm 0.002(\mathrm{stat.}) \pm 0.002(\mathrm{syst.})$. The energy dependence of $\overline{\nu}_{e}$ disappearance showed the distinct variation predicted by neutrino oscillation. Analysis using an approximation for the three-flavor oscillation probability yielded the flavor-mixing angle $\sin^22\theta_{13}=0.0841 \pm 0.0027(\mathrm{stat.}) \pm 0.0019(\mathrm{syst.})$ and the effective neutrino mass-squared difference of $\left|{\Delta}m^2_{\mathrm{ee}}\right|=(2.50 \pm 0.06(\mathrm{stat.}) \pm 0.06(\mathrm{syst.})) \times 10^{-3}\ {\rm eV}^2$. Analysis using the exact three-flavor probability found ${\Delta}m^2_{32}=(2.45 \pm 0.06(\mathrm{stat.}) \pm 0.06(\mathrm{syst.})) \times 10^{-3}\ {\rm eV}^2$ assuming the normal neutrino mass hierarchy and ${\Delta}m^2_{32}=(-2.56 \pm 0.06(\mathrm{stat.}) \pm 0.06(\mathrm{syst.})) \times 10^{-3}\ {\rm eV}^2$ for the inverted hierarchy.

Web-Page: http://inspirehep.net/record/1492315/files/arXiv:1610.04802.pdf


Note: 44 pages, 44 figures

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 Record created 2016-11-09, last modified 2016-11-09


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