Measurement of the Electron Antineutrino Oscillation with 1958 Days of Operation at Daya Bay
In: Physical Review Letters, 2018-12-14
Online
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Zugriff:
We report a measurement of electron antineutrino oscillation from the Daya Bay Reactor Neutrino Experiment with nearly 4 million reactor $\overline{\nu}_{e}$ inverse beta decay candidates observed over 1958 days of data collection. The installation of a Flash-ADC readout system and a special calibration campaign using different source enclosures reduce uncertainties in the absolute energy calibration to less than 0.5% for visible energies larger than 2 MeV. The uncertainty in the cosmogenic $^9$Li and $^8$He background is reduced from 45% to 30% in the near detectors. A detailed investigation of the spent nuclear fuel history improves its uncertainty from 100% to 30%. Analysis of the relative $\overline{\nu}_{e}$ rates and energy spectra among detectors yields $\sin^{2}2\theta_{13} = 0.0856\pm 0.0029$ and $\Delta m^2_{32}=(2.471^{+0.068}_{-0.070})\times 10^{-3}~\mathrm{eV}^2$ assuming the normal hierarchy, and $\Delta m^2_{32}=-(2.575^{+0.068}_{-0.070})\times 10^{-3}~\mathrm{eV}^2$ assuming the inverted hierarchy.
Comment: 6 pages, 4 figures, and 1 table. v4: the published version
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Measurement of the Electron Antineutrino Oscillation with 1958 Days of Operation at Daya Bay
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| Autor/in / Beteiligte Person: | Yu, Hongzhao ; Huang, Hanxiong ; Kang, L. ; Leung, J. K. C. ; Wang, Yanchu ; Zhou, Li ; Olshevskiy, Alexander ; Cao, D. ; Kettell, S. H. ; He, Miao ; Ling, J. J. ; Patton, S. J. ; Jaffe, D. E. ; White, Christopher G. ; Ma, X. B. ; Huang, Xingtao ; Bishai, M. ; Ren, Jinjuan ; Chan, Y. L. ; Band, H. R. ; Liang, H. ; Chen, Yixue ; Zhuang, H. L. ; Kohn, S. ; Worcester, E. T. ; Ye, M. ; Wang, Wenxiao ; Li, Haifeng ; Qi, F. Z. ; Peng, Jen-Chieh ; Littenberg, L. S. ; Juan Pedro Ochoa-Ricoux ; Wise, T. ; Gonchar, Maxim ; Huang, Yanping ; Lei, R. T. ; Lin, Y. C. ; Edwards, W. R. ; Taychenachev, D. ; Johnson, R. A. ; Hussain, G. ; Ji, X. L. ; Vorobel, V. ; Hu, Jianrun ; Huber, Patrick ; Wang, X. ; Zhang, Qingmin ; Zhang, Jiawen ; Li, Quanyin ; Zhang, Yinhong ; Yeh, Minfang ; Loh, Chang-Wei ; Littlejohn, B. R. ; Ji, Xiaolu ; Xia, D. M. ; Wei, H. Y. ; Deng, F. S. ; Zhang, X. T. ; Guo, Z. ; Roskovec, B. ; Zhang, R. ; Lebanowski, L. ; Ding, Y. Y. ; Lin, Shengxin ; Cheng, Z. K. ; Zhang, Z. P. ; Liu, Jianglai ; Young, Bing-Lin ; Qian, Xiaohui ; Adey, D. ; Napolitano, Jim ; Lee, J. ; Gong, Honghan ; Zhang, Yaoyu ; Yang, Yang ; D. A. Martinez Caicedo ; Zeng, S. ; Dolgareva, M. ; Kramer, Michael ; L. Mora Lepin ; Chang, Y. H. ; Naumova, E. ; Dwyer, D. A. ; McDonald, K. T. ; Wong, H. L. H. ; Langford, T. J. ; Lin, Guey-Lin ; Lu, Jonathan S. ; Yue, Baobiao ; Zhang, X.F. ; Li, Xiao-yan ; Higuera, A. ; Xing, Zhi-zhong ; Wang, C. H. ; Steiner, H. M. ; Ruan, X. C. ; Zhang, Huijun ; Zheng, P. ; Zhang, Feiyang ; Yang, Haijun ; Guo, L. ; Wang, R. G. ; Qi, M. ; Wu, W. J. ; Siew Cheng Wong ; McKeown, R. D. ; Chen, Ye ; Zhang, Chao ; Park, J. ; Zhan, Liang ; Lin, Changjian ; Heng, Yang ; Zou, Jiaheng ; Yang, Mengsu ; Lu, Haonan ; Li, Shanfeng ; Pan, H. R. ; Hu, T. ; Guo, Xiaohu ; Yang, M. T. ; Lee, J. H. C. ; Hu, B. Z. ; Li, F. ; Liu, Yunzhe ; Tull, C. E. ; Tse, W. H. ; Marshall, Christopher L. ; Chang, J. F. ; Gu, W. ; Yu, Z. Y. ; Jones, D. C. ; Li, Zhibing ; Li, Yufeng ; Link, J. M. ; Cummings, J. P. ; Balantekin, A. B. ; Leitner, Rupert ; Yang, Changgen ; Heeger, K. M. ; Jen, K. L. ; Wang, Jing ; Lu, C. ; Xu, J. L. ; Huo, Wenju ; Lin, S. K. ; Malyshkin, Y. ; Wen, Liangjian ; Cao, Guofu ; Wu, Qinglong ; Kam Biu Luk ; Pun, Chun S. J. ; Chukanov, Artem ; Pinsky, Lawrence ; Hu, Zhuojun ; Chen, Shaomin ; Cao, Jun ; Sun, J. L. ; Li, S. F. ; Xue, Tian ; Zhang, Y. X. ; Blyth, Simon ; Naumov, Dmitry V. ; Wang, M. Z. ; Ming Chung Chu ; Li, C. ; Rosero, Richard ; Tang, W. ; Wang, N. Y. ; Viren, B. ; Wei, L. H. ; Wang, Z. M. ; Ma, Yanhui ; Whisnant, K. ; Cheng, J. ; Liu, Yanlin ; Li, Wei ; Zhang, Zhijian ; Treskov, K. ; Zhang, Zhiyong ; An, F. P. ; Zhang, C. C. ; Chen, Hucheng ; Pec, V. ; Hans, S. ; Hackenburg, R. W. ; Wang, Z. ; Gong, Guanghua ; Cherwinka, J. J. ; Raper, N. ; Koerner, L. W. ; Guo, Yicheng ; Hsiung, Y. B. ; Diwan, M. V. ; Qiu, R. M. ; Li, X. Q. ; Yang, Lin ; Liu, Jinmei ; Zhao, Jing ; Li, S. ; Ma, X. Y. ; Mitchell, I. |
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| Zeitschrift: | Physical Review Letters, 2018-12-14 |
| Veröffentlichung: | APS, 2018 |
| Medientyp: | unknown |
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