Measurement of the Reactor Antineutrino Flux and Spectrum at Daya Bay.

  title={Measurement of the Reactor Antineutrino Flux and Spectrum at Daya Bay.},
  author={Fengpeng An and A Baha Balantekin and H. R. Band and M. R. Bishai and S Blyth and Ilya Butorov and D. Cao and G. F. Cao and J. Cao and W. R. Cen and Yat Long Chan and J. F. Chang and L. C. Chang and Y. Y. Chang and H S Chen and Q. Y. Chen and Shui-ming Chen and Y X Chen and Ye-Wang Chen and J. Cheng and J. Cheng and Y. P. Cheng and J. J. Cherwinka and Ming-chung Chu and John P. Cummings and J de Arcos and Ziyan Deng and X. F. Ding and Y. Y. Ding and Milind Vaman Diwan and J. Dove and Emily Draeger and Daniel A. Dwyer and W. R. Edwards and S. Ryland Ely and Ronald Lee Gill and Maxim Gonchar and G. H. Gong and Hui Gong and Marco Grassi and W. Q. Gu and Meng-yun Guan and L . B. Guo and X. H. Guo and R. W. Hackenburg and Ran Han and Sunej Hans and Miao He and Karsten M. Heeger and Yuekun. Heng and A. Higuera and Y. K. Hor and Yee Bob Hsiung and B. Z. Hu and L. M. Hu and L. J. Hu and Tao Hu and W. L. Hu and E. C. Huang and H. X. Huang and X. T. Huang and Patrick Huber and Ghulam Hussain and David E. Jaffe and Patrick John Jaffke and K. L. Jen and S. Jetter and Xiangpan Ji and Xiao-li Ji and J. Jiao and R. A. Johnson and Li Kang and Steven Kettell and Saul A. Kohn and Michael Kramer and K. K. Kwan and M. W. Kwok and T. Kwok and Thomas Langford and Kwong Lau and Logan Lebanowski and J R I Lee and Ruiting Lei and R. Leitner and Kwok Yin Leung and John Kon Chong Leung and C. A. Lewis and D. J. Li and F. Li and G. S. Li and Q. J. Li and S. C. Li and W. G. Li and Xinyi Li and Xiangfei Li and Yanchun Li and Z B Li and H Y Liang and C. J. Lin and G. L. Lin and P. Y. Lin and S. K. Lin and Jiajie Ling and Jonathan Link and Laurence S. Littenberg and B. R. Littlejohn and D. W. Liu and Haoying Liu and Juelin Liu and J Y Liu and S S Liu and C. D. Lu and H. Q. Lu and J. S. Lu and K. B. Luk and Q. M. Ma and X. Ma and X. B. Ma and Y. Q. Ma and D. A. Martinez Caicedo and Kirk McDonald and Robert D. McKeown and Yue Meng and Ian Mitchell and J Monari Kebwaro and Yasuyuki Nakajima and James Napolitano and D. V. Naumov and Elena Arkadyevna Naumova and Ho-yin Ngai and Zhi Ning and J. P. Ochoa-Ricoux and Alexander Olshevski and H. Pan and J. S. Park and Simon J. Patton and Viktor Pě{\vc} and J. -C. Peng and Leo Piilonen and Lawrence S. Pinsky and Chun Shing Jason Pun and F. Z. Qi and Ming Qi and Xin Qian and Neill Raper and Bin Ren and J. R. Ren and Richard Rosero and Bedřich Roskovec and Xichao Ruan and Bei-bei Shao and Herbert M. Steiner and Gongxing Sun and J. L. Sun and W. Tang and D. V. Taychenachev and Ka Vang Tsang and Craig E. Tull and Yi-Chung Tung and Nicol'as Viaux and Brett Viren and V. Vorobel and C. H. Wang and M. Wang and N. Y. Wang and R. G. Wang and Weiqing Wang and Weizhi Wang and Xianghan Wang and Y F Wang and Zhibo Wang and Ziqiang Wang and Ziqiang Wang and H Wei and Liangjian Wen and Kerry Whisnant and C. G. White and L. H. Whitehead and T. Wise and H. L. H. Wong and S. C. F. Wong and E. Worcester and Q. K. Wu and Dongmei Xia and Jingkai Xia and Xin Xia and Zhi-zhong Xing and J. Y. Xu and J. L. Xu and J. L. Xu and Y. Xu and Tao Xue and J. L. Yan and C. G. Yang and L. Yang and M. S. Yang and M. T. Yang and M. Ye and Minfang Yeh and Bing-lin Young and G. Y. Yu and Z. Y. Yu and Shi Lei Zang and L. Zhan and C. C. Zhang and Haoyang Zhang and J. Zhang and Q. M. Zhang and Yun-Yi Zhang and Yuhan Zhang and Y. M. Zhang and Zhicong Zhang and Zherui Zhang and Zhenghao Zhang and J. Zhao and Q. W. Zhao and Y. F. Zhao and Y. B. Zhao and L. Zheng and Weili Zhong and L. P. Zhou and N. Zhou and H L Zhuang and Jia Heng Zou},
  journal={Physical review letters},
  volume={116 6},
This Letter reports a measurement of the flux and energy spectrum of electron antineutrinos from six 2.9 GWth nuclear reactors with six detectors deployed in two near (effective baselines 512 and 561 m) and one far (1579 m) underground experimental halls in the Daya Bay experiment. Using 217 days of data, 296 721 and 41 589 inverse β decay (IBD) candidates were detected in the near and far halls, respectively. The measured IBD yield is (1.55±0.04) ×10(-18)  cm(2) GW(-1) day(-1) or (5.92±0.14… Expand
Improved Measurement of the Reactor Antineutrino Flux and Spectrum at Daya Bay
A new measurement of the reactor antineutrino flux and energy spectrum by the Daya Bay reactor neutrino experiment is reported. The antineutrinos were generated by six 2.9~GW$_{\mathrm{th}}$ nuclearExpand
Improved measurement of the reactor antineutrino flux at Daya Bay
This work reports a precise measurement of the reactor antineutrino flux using 2.2 million inverse beta decay (IBD) events collected with the Daya Bay near detectors in 1230 days. The dominantExpand
New measurement of antineutrino oscillation with the full detector configuration at Daya Bay.
Improvements in energy calibration limited variations between detectors to 0.2%. Expand
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A Measurement of the Absolute Reactor Antineutrino Flux and Spectrum at Daya Bay
  • F. An
  • Environmental Science
  • 2017
The Daya Bay Reactor Neutrino Experiment uses an array of eight underground detectors to study antineutrinos from six reactor cores with different baselines. Since the start of data-taking from lateExpand
Cosmogenic neutron production at Daya Bay
Neutrons produced by cosmic ray muons are an important background for underground experiments studying neutrino oscillations, neutrinoless double beta decay, dark matter, and other rare-eventExpand
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Predictions of antineutrino fluxes produced by fission isotopes in a nuclear reactor have recently received increased scrutiny due to observed differences in predicted and measured inverse beta decayExpand
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The antineutrino and electron spectra associated with various nuclear fuels are calculated. While there are substantial differences between the spectra of different uranium and plutonium isotopes,Expand
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We revisit the reactor antineutrino anomaly using the recent reactor flux independent determination of sizable theta?13 by considering the full set of the absolute reactor electron antineutrino fluxExpand
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Reactor neutrino oscillation experiments, such as Daya Bay, Double Chooz and RENO are designed to determine the neutrino mixing angle theta(13) with a sensitivity of 0.01-0.03 in sin(2) 2 theta(13)Expand
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In this paper we study the effect of, well-known, higher order corrections to the allowed beta decay spectrum on the determination of anti-neutrino spectra resulting from the decays of fissionExpand
Experimental beta-spectra from 239Pu and 235U thermal neutron fission products and their correlated antineutrino spectra☆
Abstract The beta spectrum from 239Pu thermal neutron fission fragments was measured on-line with a magnetic spectrometer in the energy interval Eβ = 1.5 to 8.0 MeV. The beta spectrum was convertedExpand