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1. Charged-current non-standard neutrino interactions at Daya Bay

Author

The Daya Bay collaboration, F. P. An, W. D. Bai, A. B. Balantekin, M. Bishai, S. Blyth, G. F. Cao, J. Cao, J. F. Chang, Y. Chang, H. S. Chen, H. Y. Chen, S. M. Chen, Y. Chen, Y. X. Chen, Z. Y. Chen, J. Cheng, Y.-C. Cheng, Z. K. Cheng, J. J. Cherwinka, M. C. Chu, J. P. Cummings, O. Dalager, F. S. Deng, X. Y. Ding, Y. Y. Ding, M. V. Diwan, T. Dohnal, D. Dolzhikov, J. Dove, K. V. Dugas, H. Y. Duyang, D. A. Dwyer, J. P. Gallo, M. Gonchar, G. H. Gong, H. Gong, W. Q. Gu, J. Y. Guo, L. Guo, X. H. Guo, Y. H. Guo, Z. Guo, R. W. Hackenburg, Y. Han, S. Hans, M. He, K. M. Heeger, Y. K. Heng, Y. K. Hor, Y. B. Hsiung, B. Z. Hu, J. R. Hu, T. Hu, Z. J. Hu, H. X. Huang, J. H. Huang, X. T. Huang, Y. B. Huang, P. Huber, D. E. Jaffe, K. L. Jen, X. L. Ji, X. P. Ji, R. A. Johnson, D. Jones, L. Kang, S. H. Kettell, S. Kohn, M. Kramer, T. J. Langford, J. Lee, J. H. C. Lee, R. T. Lei, R. Leitner, J. K. C. Leung, F. Li, H. L. Li, J. J. Li, Q. J. Li, R. H. Li, S. Li, S. C. Li, W. D. Li, X. N. Li, X. Q. Li, Y. F. Li, Z. B. Li, H. Liang, C. J. Lin, G. L. Lin, S. Lin, J. J. Ling, J. M. Link, L. Littenberg, B. R. Littlejohn, J. C. Liu, J. L. Liu, J. X. Liu, C. Lu, H. Q. Lu, K. B. Luk, B. Z. Ma, X. B. Ma, X. Y. Ma, Y. Q. Ma, R. C. Mandujano, C. Marshall, K. T. McDonald, R. D. McKeown, Y. Meng, J. Napolitano, D. Naumov, E. Naumova, T. M. T. Nguyen, J. P. Ochoa-Ricoux, A. Olshevskiy, J. Park, S. Patton, J. C. Peng, C. S. J. Pun, F. Z. Qi, M. Qi, X. Qian, N. Raper, J. Ren, C. Morales Reveco, R. Rosero, B. Roskovec, X. C. Ruan, B. Russell, H. Steiner, J. L. Sun, T. Tmej, W.-H. Tse, C. E. Tull, Y. C. Tung, B. Viren, V. Vorobel, C. H. Wang, J. Wang, M. Wang, N. Y. Wang, R. G. Wang, W. Wang, X. Wang, Y. F. Wang, Z. Wang, Z. M. Wang, H. Y. Wei, L. H. Wei, W. Wei, L. J. Wen, K. Whisnant, C. G. White, H. L. H. Wong, E. Worcester, D. R. Wu, Q. Wu, W. J. Wu, D. M. Xia, Z. Q. Xie, Z. Z. Xing, H. K. Xu, J. L. Xu, T. Xu, T. Xue, C. G. Yang, L. Yang, Y. Z. Yang, H. F. Yao, M. Ye, M. Yeh, B. L. Young, H. Z. Yu, Z. Y. Yu, B. B. Yue, V. Zavadskyi, S. Zeng, Y. Zeng, L. Zhan, C. Zhang, F. Y. Zhang, H. H. Zhang, J. L. Zhang, J. W. Zhang, Q. M. Zhang, S. Q. Zhang, X. T. Zhang, Y. M. Zhang, Y. X. Zhang, Y. Y. Zhang, Z. J. Zhang, Z. P. Zhang, Z. Y. Zhang, J. Zhao, R. Z. Zhao, L. Zhou, H. L. Zhuang, and J. H. Zou

Subjects
Neutrino Mixing, Non-Standard Neutrino Properties, Neutrino Interactions, SMEFT, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

Abstract The full data set of the Daya Bay reactor neutrino experiment is used to probe the effect of the charged current non-standard interactions (CC-NSI) on neutrino oscillation experiments. Two different approaches are applied and constraints on the corresponding CC-NSI parameters are obtained with the neutrino flux taken from the Huber-Mueller model with a 5% uncertainty. For the quantum mechanics-based approach (QM-NSI), the constraints on the CC-NSI parameters ϵ eα and ϵ eα s $$ {\epsilon}_{e\alpha}^s $$ are extracted with and without the assumption that the effects of the new physics are the same in the production and detection processes, respectively. The approach based on the weak effective field theory (WEFT-NSI) deals with four types of CC-NSI represented by the parameters [ε X ] eα . For both approaches, the results for the CC-NSI parameters are shown for cases with various fixed values of the CC-NSI and the Dirac CP-violating phases, and when they are allowed to vary freely. We find that constraints on the QM-NSI parameters ϵ eα and ϵ eα s $$ {\epsilon}_{e\alpha}^s $$ from the Daya Bay experiment alone can reach the order O $$ \mathcal{O} $$ (0.01) for the former and O $$ \mathcal{O} $$ (0.1) for the latter, while for WEFT-NSI parameters [ε X ] eα , we obtain O $$ \mathcal{O} $$ (0.1) for both cases.

Published
2024
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2. A high precision calibration of the nonlinear energy response at Daya Bay

Author

X. L. Ji, E. Naumova, D. A. Dwyer, T. J. Langford, L. Mora Lepin, H. M. Steiner, Y. Q. Ma, Xiao-yan Li, J. J. Cherwinka, N. Raper, Rupert Leitner, A. Higuera, Zhi-zhong Xing, Qinglong Wu, Kam Biu Luk, Christopher G. White, M. Qi, Tian Xue, J. L. Sun, S. H. Kettell, Artem Chukanov, X. B. Ma, Y. K. Heng, K. Whisnant, C. Li, Lawrence Pinsky, Jinjuan Ren, J. Park, Q. J. Li, Y. Z. Yang, X.F. Zhang, Tao Hu, N. Y. Wang, B. Viren, Maxim Gonchar, L. H. Wei, R. T. Lei, Qingmin Zhang, F. S. Deng, R. A. Johnson, Jiawen Zhang, J. H. C. Lee, Guanghua Gong, C. C. Zhang, Minfang Yeh, B. Z. Hu, Wei Wang, S. J. Patton, Lei Zhou, B. R. Littlejohn, Jia Xu, Yufeng Li, Y. M. Zhang, Jim Napolitano, Hongzhao Yu, K. L. Jen, Bing-Lin Young, Jianrun Hu, J. P. Cummings, Z. Guo, L. Guo, Y. Chang, Patrick Huber, Hanxiong Huang, L. Kang, Jun Cheng, Chao Zhang, X. T. Zhang, Baobiao Yue, H. L. Zhuang, Alexander Olshevskiy, J. K. C. Leung, Guey-Lin Lin, Honghan Gong, Shanfeng Li, Jonathan S. Lu, Yaoyu Zhang, Y. B. Huang, E. T. Worcester, F. Z. Qi, Vit Vorobel, Shengxin Lin, H. H. Zhang, Wei Li, S. Jetter, Yi Chen, Yunzhe Liu, Yuhang Guo, Siew Cheng Wong, N. Dash, K. T. McDonald, W. H. Tse, D. C. Jones, Meng Ye, Christopher L. Marshall, J. F. Chang, Jiaheng Zou, Y. K. Hor, J. J. Ling, D. A. Martinez Caicedo, Zhiyong Zhang, B. Roskovec, Zhijian Zhang, Zhibing Li, A. B. Balantekin, Richard Rosero, Z. M. Wang, H. R. Band, Changgen Yang, Jianglai Liu, X. C. Ruan, Mengsu Yang, K. Treskov, X. H. Guo, M. Dvořák, Feiyang Zhang, H. R. Pan, Michael Kramer, V. Pec, L. Lebanowski, Y. Y. Ding, C. Lu, Rui Zhang, S. Hans, R. G. Wang, Xingtao Huang, Simon Blyth, Yixue Chen, M. Z. Wang, Ming Chung Chu, R. W. Hackenburg, Chun S. J. Pun, Liang Zhan, M. Bishai, F. P. An, D. M. Xia, Z. Wang, Zhuojun Hu, K. M. Heeger, Changjian Lin, Shaomin Chen, Jun Cao, Xiaolu Ji, L. S. Littenberg, Z. K. Cheng, Z. P. Zhang, S. F. Li, Y. X. Zhang, W. J. Wu, Dmitry V. Naumov, D. Adey, L. W. Koerner, X. Wang, R. D. McKeown, D. Cao, D. E. Jaffe, C. E. Tull, Miao He, Haoqi Lu, Y. F. Wang, Haosheng Chen, J. M. Link, Yanlin Liu, Hongliang Li, Jing Wang, S. K. Lin, Hai Liang, Liangjian Wen, Guofu Cao, Jingyuan Guo, Juan Pedro Ochoa-Ricoux, Jen-Chieh Peng, Xiaohui Qian, J. Lee, H. Y. Wei, J. Dove, Yuda Zeng, S. Zeng, H. L. H. Wong, Yuman Wang, W. Q. Gu, Zeyuan Yu, S. Kohn, Chunjie Wang, M. V. Diwan, X. Q. Li, Tadeas Dohnal, Lin Yang, Jinmei Liu, Jing Zhao, S. Li, X. Y. Ma, I. Mitchell, Y. B. Hsiung, and Feng Li

Subjects
Physics, Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, Scintillation counter, Detector, Calibration, Daya Bay Reactor Neutrino Experiment, Neutrino, Scintillator, Kinetic energy, Instrumentation, Energy (signal processing), Computational physics
Abstract

A high precision calibration of the nonlinearity in the energy response of the Daya Bay Reactor Neutrino Experiment’s antineutrino detectors is presented in detail. The energy nonlinearity originates from the particle-dependent light yield of the scintillator and charge-dependent electronics response. The nonlinearity model is constrained by γ calibration points from deployed and naturally occurring radioactive sources, the β spectrum from ^(12)B decays, and a direct measurement of the electronics nonlinearity with a new flash analog-to-digital converter readout system. Less than 0.5% uncertainty in the energy nonlinearity calibration is achieved for positrons of kinetic energies greater than 1 MeV.

Published
2019

3. Antineutrino Energy Spectrum Unfolding Based on the Daya Bay Measurement and Its Applications

Author

Jinjuan Ren, Dmitry Dolzhikov, Haifeng Li, Yuman Wang, S. Zeng, W. Q. Gu, Z. M. Wang, X. L. Ji, Minfang Yeh, Y. X. Zhang, C. Morales Reveco, Michael Kramer, Yufeng Li, K. L. Jen, Tomas Tmej, J. P. Gallo, Chun S. J. Pun, Zhuojun Hu, Shaomin Chen, Jun Cao, Haifeng Yao, J. J. Cherwinka, S. F. Li, Bangzheng Ma, Dmitry V. Naumov, Yinhong Zhang, Yongzhu Chen, Yue Meng, Q. J. Li, H. R. Pan, Kam-Biu Luk, N. Raper, H. Liang, Yixue Chen, Hongzhao Yu, Olivia Dalager, Z. Guo, D. C. Jones, Hanxiong Huang, L. Kang, N. Y. Wang, B. Viren, X. T. Huang, Tianpeng Xu, A. B. Balantekin, C. G. Yang, Zhi-zhong Xing, Baobiao Yue, W. J. Wu, Y. Z. Yang, R. D. McKeown, C. E. Tull, S. Kohn, L. H. Wei, Rong Zhao, R. T. Lei, F. Li, Simon Blyth, R. C. Mandujano, Guanghua Gong, Li Zhou, S. Hans, M. Z. Wang, Ming Chung Chu, W. H. Tse, Diru Wu, M. Ye, Jingyuan Guo, Chi Lin, K. T. McDonald, F. L. Wu, Jen-Chieh Peng, Y. K. Hor, Jianrun Hu, Qinglong Wu, Junwei Huang, Jianglai Liu, J. Dove, Yuda Zeng, J. M. Link, J. P. Cummings, L. Guo, Alexander Olshevskiy, M. Qi, Tian Xue, M. Bishai, Chao Zhang, S. J. Patton, Y. K. Heng, H. S. Chen, Xiaohui Qian, J. Lee, H. Y. Wei, K. M. Heeger, Zhijian Zhang, Rupert Leitner, L. S. Littenberg, H. L. H. Wong, H. H. Zhang, H. L. Zhuang, K. Treskov, Richard Rosero, Juan Pedro Ochoa-Ricoux, X. Wang, J. J. Ling, B. R. Littlejohn, M. Grassi, D. E. Jaffe, Miao He, E. Naumova, D. A. Dwyer, B. Z. Hu, Haoqi Lu, T. J. Langford, Ruhui Li, Yaoyu Zhang, Y. B. Huang, Vitalii Zavadskyi, Y. F. Wang, Y. H. Chang, Vit Vorobel, S. Zhang, Jing Wang, T. Hu, Xiaolu Ji, Wei Li, H. M. Steiner, R. W. Hackenburg, Y. Q. Ma, Z. Wang, Honghan Gong, K. Whisnant, Zhiyong Zhang, J. Cheng, Yuhang Guo, B. Roskovec, Jiaheng Zou, D. M. Xia, F. S. Deng, Bing-Lin Young, Liangjian Wen, Guofu Cao, X. C. Ruan, Z. K. Cheng, Z. P. Zhang, Jianmin Li, Y. Y. Ding, Fengpeng An, Zhangquan Xie, Qingmin Zhang, Jim Napolitano, W. Wang, Y. B. Hsiung, Z. Y. Yu, M. V. Diwan, X. Q. Li, H. K. Xu, Patrick Huber, Tadeas Dohnal, J. L. Sun, X. T. Zhang, J. Park, T. M. T. Nguyen, J. H. C. Lee, Z. B. Li, Shengxin Lin, E. T. Worcester, Lin Yang, F. Z. Qi, Jinmei Liu, Jing Zhao, X. Y. Ma, Christopher L. Marshall, J. F. Chang, X. H. Guo, Jiawen Zhang, M. Dvořák, C. H. Wang, R. G. Wang, Feiyang Zhang, Liang Zhan, Christopher G. White, C. Lu, J. L. Xu, Shanfeng Li, Guey-Lin Lin, Jian Liu, J. K. C. Leung, S. H. Kettell, X. B. Ma, Maxim Gonchar, Xinglong Li, and R. A. Johnson

Subjects
Physics, Nuclear and High Energy Physics, Isotope, Fissile material, 010308 nuclear & particles physics, Fission, Detector, FOS: Physical sciences, Astronomy and Astrophysics, 01 natural sciences, Spectral line, Physics::Geophysics, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Inverse beta decay, 0103 physical sciences, Energy spectrum, High Energy Physics::Experiment, 010306 general physics, Nuclear Experiment, Instrumentation, Energy (signal processing)
Abstract

The prediction of reactor antineutrino spectra will play a crucial role as reactor experiments enter the precision era. The positron energy spectrum of 3.5 million antineutrino inverse beta decay reactions observed by the Daya Bay experiment, in combination with the fission rates of fissile isotopes in the reactor, is used to extract the positron energy spectra resulting from the fission of specific isotopes. This information can be used to produce a precise, data-based prediction of the antineutrino energy spectrum in other reactor antineutrino experiments with different fission fractions than Daya Bay. The positron energy spectra are unfolded to obtain the antineutrino energy spectra by removing the contribution from detector response with the Wiener-SVD unfolding method. Consistent results are obtained with other unfolding methods. A technique to construct a data-based prediction of the reactor antineutrino energy spectrum is proposed and investigated. Given the reactor fission fractions, the technique can predict the energy spectrum to a 2% precision. In addition, we illustrate how to perform a rigorous comparison between the unfolded antineutrino spectrum and a theoretical model prediction that avoids the input model bias of the unfolding method., 22 pages, 10 figures, 6 supplemental materials

Published
2021

4. Improved Constraints on Sterile Neutrino Mixing from Disappearance Searches in the MINOS, MINOS+ , Daya Bay, and Bugey-3 Experiments

Author

J. L. Sun, E. T. Worcester, F. Z. Qi, Jingyuan Guo, X. H. Guo, M. Dvořák, C. H. Wang, Feiyang Zhang, Richard Rosero, Jen-Chieh Peng, X. L. Ji, J. Park, J. H. C. Lee, J. P. Gallo, Miao He, A. E. Kreymer, S. V. Cao, J. Dove, Yuda Zeng, P. Lucas, Marvin L Marshak, Shanfeng Li, Chun S. J. Pun, Zhuojun Hu, D. C. Jones, Li Zhou, Christopher L. Marshall, J. F. Chang, A. B. Balantekin, Diru Wu, N. Poonthottathil, Yunzhe Liu, D. M. Xia, Shaomin Chen, Jun Cao, R. Chen, N. Graf, Y. Y. Ding, S. Hans, C. Lu, J. L. Xu, Rakesh Sharma, R. W. Hackenburg, S. R. Hahn, Haifeng Yao, S. Childress, S. H. Kettell, X. B. Ma, A. Aurisano, Honghan Gong, Maxim Gonchar, Xinglong Li, Z. Wang, S. F. Li, R. A. Johnson, H. H. Zhang, Jiawen Zhang, Fengpeng An, Yuhang Guo, Alexander Olshevskiy, Siew Cheng Wong, H. R. Band, Guey-Lin Lin, Jonathan S. Lu, Dmitry V. Naumov, Lin Yang, J. K. Nelson, D. E. Jaffe, H. Liang, Yixue Chen, G. B. Mills, Z. Y. Yu, Z. K. Cheng, K. Whisnant, J. J. Ling, Karol Lang, Z. P. Zhang, J. R. Meier, Jinmei Liu, Simon Blyth, J. Cheng, M. Kordosky, Jing Zhao, S. Li, X. Y. Ma, R. Mehdiyev, S. J. Patton, J. Schneps, Andrew Blake, M. Z. Wang, Ming Chung Chu, Zhangquan Xie, H. L. Zhuang, Michael Kramer, I. Anghel, A. Timmons, C. Morales Reveco, F. L. Wu, Y. X. Zhang, M. M. Pfützner, R. K. Plunkett, Yufeng Li, K. L. Jen, Ž. Pavlović, W. J. Wu, Vit Vorobel, R. D. McKeown, Wei Li, Artem Chukanov, N. Dash, Yue Meng, P. Sail, M. V. Diwan, Zhiyong Zhang, B. Roskovec, John Evans, X. Q. Li, M. Qi, M. Bishai, Tadeas Dohnal, Hongzhao Yu, Jing Wang, A. Schreckenberger, Nasir Shaheed, Hanxiong Huang, Z. B. Li, Y. Z. Yang, L. Kang, Qingmin Zhang, J. K. C. Leung, Gregory J Pawloski, R. T. Lei, Hongliang Li, P. Gouffon, X. Qiu, M. Ye, W. Wang, B. Z. Hu, N. Y. Wang, M. A. Thomson, D. Naples, B. Viren, Jianrun Hu, Stanley G. Wojcicki, L. Guo, Zhijian Zhang, Jiachen Li, J. O'Connor, Alec Habig, Y. B. Hsiung, Chao Zhang, K. Grzelak, J. J. Cherwinka, Xiaolu Ji, Liangjian Wen, D. D. Phan, Guofu Cao, L. H. Wei, K. Treskov, N. Raper, Jinjuan Ren, Q. J. Li, W. A. Mann, R. Hatcher, R. A. Gomes, Jim Napolitano, N. Tagg, A. Radovic, Qinglong Wu, G.D. Barr, Junwei Huang, Kam Biu Luk, G. J. Feldman, Yinhong Zhang, Z. Guo, Tian Xue, A. Holin, Juergen Thomas, Y. K. Heng, K. T. McDonald, J. Todd, Yanhui Liu, A. C. Weber, A. Perch, X. C. Ruan, Xin Qian, Guanghua Gong, Joao A B Coelho, Chi Lin, Juan Pedro Ochoa-Ricoux, L. Mora Lepin, A. Higuera, X. T. Huang, C. G. Yang, H. R. Pan, Zhi-zhong Xing, S. De Rijck, C. E. Tull, D. Torretta, J. Lee, H. Y. Wei, H. L. H. Wong, J. Hartnell, H. S. Chen, T. J. Carroll, P. Adamson, Y. K. Hor, Jianglai Liu, L. W. Koerner, X. Wang, Haoqi Lu, Y. F. Wang, W. Flanagan, T. Tmej, S. Kohn, S. Germani, Warner A. Miller, R. Toner, E. Naumova, D. A. Dwyer, T. J. Langford, A. Sousa, Yuman Wang, S. Zeng, W. Q. Gu, H. M. Steiner, P. Vahle, Y. Q. Ma, F. S. Deng, Bing-Lin Young, B. R. Littlejohn, Yaoyu Zhang, Y. B. Huang, Patrick Huber, Y. H. Chang, X. T. Zhang, Shengxin Lin, C. M. Castromonte, T. Hu, D. A. Martinez Caicedo, Minfang Yeh, Yongzhu Chen, Baobiao Yue, F. Li, R. G. Wang, W. H. Tse, R. J. Nichol, N. Mayer, Liang Zhan, K. M. Heeger, Christopher G. White, S. C. Tognini, Rupert Leitner, D. Dolzhikov, T. Xu, J. M. Link, J. P. Cummings, mrow, Leigh H. Whitehead, M. Y. Gabrielyan, L. S. Littenberg, M. C. Sanchez, R. B. Pahlka, and Z. M. Wang

Subjects
Physics, Particle physics, Sterile neutrino, Muon, General Physics and Astronomy, 01 natural sciences, MiniBooNE, MINOS, 0103 physical sciences, Muon neutrino, Neutron, 010306 general physics, Electron neutrino, Mixing (physics)
Abstract

Searches for electron antineutrino, muon neutrino, and muon antineutrino disappearance driven by sterile neutrino mixing have been carried out by the Daya Bay and MINOS+ collaborations. This Letter presents the combined results of these searches, along with exclusion results from the Bugey-3 reactor experiment, framed in a minimally extended four-neutrino scenario. Significantly improved constraints on the θ_{μe} mixing angle are derived that constitute the most constraining limits to date over five orders of magnitude in the mass-squared splitting Δm_{41}^{2}, excluding the 90% C.L. sterile-neutrino parameter space allowed by the LSND and MiniBooNE observations at 90% CL_{s} for Δm_{41}^{2}

Published
2020

5. Search For Electron-Antineutrinos Associated With Gravitational-Wave Events GW150914, GW151012, GW151226, GW170104, GW170608, GW170814, and GW170817 at Daya Bay

Author

B. R. Littlejohn, Yaoyu Zhang, Y. B. Huang, J. P. Gallo, R. W. Hackenburg, Y. H. Chang, Z. Wang, Chun S. J. Pun, Zhuojun Hu, Shaomin Chen, Y. K. Hor, Jun Cao, Hongzhao Yu, Hanxiong Huang, L. Kang, Haifeng Yao, Jianglai Liu, S. F. Li, Dmitry V. Naumov, Xin Qian, Z. Y. Yu, S. J. Patton, K. Whisnant, J. Cheng, X. Wang, Haoqi Lu, A. Higuera, X. T. Huang, C. G. Yang, Olivia Dalager, M. V. Diwan, X. Q. Li, Tadeas Dohnal, J. K. C. Leung, X. C. Ruan, Zhi-zhong Xing, Z. B. Li, D. M. Xia, H. L. Zhuang, Y. F. Wang, Michael Kramer, E. T. Worcester, F. Z. Qi, S. H. Kettell, X. B. Ma, Jinjuan Ren, Christopher L. Marshall, J. F. Chang, Christopher G. White, H. R. Band, H. Liang, Yixue Chen, N. Y. Wang, B. Viren, Q. J. Li, Y. Z. Yang, L. H. Wei, H. S. Chen, R. T. Lei, W. J. Wu, R. D. McKeown, Qingmin Zhang, Maxim Gonchar, Xinglong Li, R. A. Johnson, X. L. Ji, Rupert Leitner, Z. M. Wang, D. E. Jaffe, Guanghua Gong, C. Lu, Chi Lin, Jim Napolitano, Jiawen Zhang, Jingyuan Guo, Jen-Chieh Peng, Jianrun Hu, Qinglong Wu, Yinhong Zhang, Z. Guo, J. J. Cherwinka, Li Zhou, J. Dove, Yuda Zeng, N. Raper, Tian Xue, Miao He, L. Guo, Xiaolu Ji, C. Morales Reveco, Chao Zhang, X. H. Guo, Guey-Lin Lin, Jonathan S. Lu, D. A. Martinez Caicedo, Jia Xu, Yufeng Li, Y. K. Heng, K. T. McDonald, M. Dvořák, C. H. Wang, Vit Vorobel, K. L. Jen, Tomas Tmej, Feiyang Zhang, Jianmin Li, M. Ye, Wei Li, S. Kohn, Y. Y. Ding, D. C. Jones, H. H. Zhang, R. G. Wang, A. B. Balantekin, Liang Zhan, F. L. Wu, Zhiyong Zhang, B. Roskovec, Fengpeng An, Tianpeng Xu, Patrick Huber, X. T. Zhang, Minfang Yeh, Shengxin Lin, Shanfeng Li, S. Hans, J. L. Sun, Juan Pedro Ochoa-Ricoux, J. Park, J. H. C. Lee, Alexander Olshevskiy, Yongzhu Chen, J. J. Ling, Baobiao Yue, Honghan Gong, Zhijian Zhang, J. Lee, H. Y. Wei, Yuhang Guo, H. L. H. Wong, Jiaheng Zou, K. Treskov, T. Hu, F. Li, Richard Rosero, W. H. Tse, H. R. Pan, C. E. Tull, Y. X. Zhang, K. M. Heeger, Yue Meng, Kam-Biu Luk, Simon Blyth, M. Z. Wang, Ming Chung Chu, Yuman Wang, S. Zeng, W. Q. Gu, M. Qi, M. Bishai, B. Z. Hu, F. S. Deng, Bing-Lin Young, Diru Wu, L. S. Littenberg, E. Naumova, D. A. Dwyer, W. Wang, T. J. Langford, Y. B. Hsiung, Lin Yang, Jinmei Liu, Jing Zhao, X. Y. Ma, H. M. Steiner, Y. Q. Ma, J. M. Link, J. P. Cummings, Jing Wang, Liangjian Wen, Guofu Cao, Z. K. Cheng, Z. P. Zhang, and Zhangquan Xie

Subjects
Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Nuclear and High Energy Physics, Range (particle radiation), Physics - Instrumentation and Detectors, 010308 nuclear & particles physics, Gravitational wave, FOS: Physical sciences, Astronomy and Astrophysics, Electron, Astrophysics, Instrumentation and Detectors (physics.ins-det), 01 natural sciences, Spectral line, High Energy Physics - Experiment, Neutron star, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, GW151226, Monochromatic color, Neutrino, 010306 general physics, Astrophysics - High Energy Astrophysical Phenomena, Instrumentation
Abstract

Providing a possible connection between neutrino emission and gravitational-wave (GW) bursts is important to our understanding of the physical processes that occur when black holes or neutron stars merge. In the Daya Bay experiment, using data collected from December 2011 to August 2017, a search has been performed for electron-antineutrino signals coinciding with detected GW events, including GW150914, GW151012, GW151226, GW170104, GW170608, GW170814, and GW170817. We used three time windows of $\mathrm{\pm 10~s}$, $\mathrm{\pm 500~s}$, and $\mathrm{\pm 1000~s}$ relative to the occurrence of the GW events, and a neutrino energy range of 1.8 to 100 MeV to search for correlated neutrino candidates. The detected electron-antineutrino candidates are consistent with the expected background rates for all the three time windows. Assuming monochromatic spectra, we found upper limits (90% confidence level) on electron-antineutrino fluence of $(1.13~-~2.44) \times 10^{11}~\rm{cm^{-2}}$ at 5 MeV to $8.0 \times 10^{7}~\rm{cm^{-2}}$ at 100 MeV for the three time windows. Under the assumption of a Fermi-Dirac spectrum, the upper limits were found to be $(5.4~-~7.0)\times 10^{9}~\rm{cm^{-2}}$ for the three time windows., Comment: 16 pages, 12 figures, 9 tables

Published
2020
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6. Extraction of the U235 and Pu239 Antineutrino Spectra at Daya Bay

Author

W. Wang, J. Park, Yuman Wang, S. Zeng, W. Q. Gu, Y. B. Hsiung, J. H. C. Lee, Hongzhao Yu, J. K. C. Leung, Minfang Yeh, Hanxiong Huang, L. Kang, V. Pec, S. Hans, Patrick Huber, S. H. Kettell, X. B. Ma, M. Qi, Yongzhu Chen, Alexander Olshevskiy, M. Bishai, Baobiao Yue, Jingyuan Guo, Jen-Chieh Peng, S. J. Patton, X. T. Zhang, Yunzhe Liu, J. Dove, Yuda Zeng, Miao He, H. H. Zhang, J. J. Ling, E. T. Worcester, M. V. Diwan, Shengxin Lin, Maxim Gonchar, Honghan Gong, F. Z. Qi, Michael Kramer, F. Li, B. Z. Hu, X. Q. Li, Xinglong Li, W. J. Wu, R. D. McKeown, H. L. Zhuang, R. A. Johnson, W. H. Tse, Vit Vorobel, Z. Y. Yu, Z. K. Cheng, Z. P. Zhang, D. C. Jones, Wei Li, A. B. Balantekin, Yuhang Guo, Y. Z. Yang, R. T. Lei, D. M. Xia, Siew Cheng Wong, Jiaheng Zou, Tadeas Dohnal, Jiawen Zhang, N. Dash, L. S. Littenberg, H. S. Chen, Y. X. Zhang, Yinhong Zhang, J. P. Cummings, Z. Guo, Jianrun Hu, Zhiyong Zhang, B. Roskovec, S. Kohn, X. C. Ruan, Rui Zhang, X. H. Guo, Xiaolu Ji, D. A. Martinez Caicedo, M. Dvořák, C. H. Wang, Feiyang Zhang, Kam-Biu Luk, K. M. Heeger, D. Cao, K. T. McDonald, Z. B. Li, J. J. Cherwinka, X. L. Ji, Richard Rosero, R. W. Hackenburg, D. E. Jaffe, Z. Wang, Yanhui Liu, N. Raper, Haifeng Li, E. Naumova, Juan Pedro Ochoa-Ricoux, Guey-Lin Lin, Jonathan S. Lu, Y. K. Hor, Lin Yang, J. M. Link, T. Hu, Y. Y. Ding, H. R. Band, Zhijian Zhang, Jianglai Liu, H. Liang, Yixue Chen, B. R. Littlejohn, K. Treskov, K. Whisnant, R. G. Wang, Shanfeng Li, J. Cheng, Jinmei Liu, Jing Zhao, Li Zhou, D. A. Dwyer, J. L. Sun, T. J. Langford, D. Adey, Yaoyu Zhang, Y. B. Huang, C. Li, Xin Qian, Liang Zhan, Simon Blyth, M. Z. Wang, S. Li, Ming Chung Chu, X. Y. Ma, Y. H. Chang, Guanghua Gong, Jing Wang, Chi Lin, L. Mora Lepin, Fengpeng An, Christopher L. Marshall, J. F. Chang, I. Mitchell, Artem Chukanov, Lawrence Pinsky, N. Y. Wang, B. Viren, Qingmin Zhang, A. Higuera, X. T. Huang, C. G. Yang, L. Guo, Zhi-zhong Xing, Chao Zhang, C. C. Zhang, L. H. Wei, Jinjuan Ren, Q. J. Li, Mengsu Yang, C. Lu, J. L. Xu, Christopher G. White, Qinglong Wu, Jim Napolitano, J. Lee, Tian Xue, Liangjian Wen, H. Y. Wei, Y. K. Heng, Guofu Cao, H. M. Steiner, H. L. H. Wong, Y. Q. Ma, H. R. Pan, C. E. Tull, F. S. Deng, M. Ye, Bing-Lin Young, Yufeng Li, K. L. Jen, Z. M. Wang, Chun S. J. Pun, Zhuojun Hu, Shaomin Chen, Jun Cao, S. F. Li, Dmitry V. Naumov, L. W. Koerner, X. Wang, Haoqi Lu, Y. F. Wang, Rupert Leitner, and X.F. Zhang

Subjects
Physics, Semileptonic decay, Isotope, Fission, General Physics and Astronomy, Inverse, 01 natural sciences, Spectral line, Nuclear physics, Inverse beta decay, 0103 physical sciences, 010306 general physics, Spectroscopy, Energy (signal processing)
Abstract

This Letter reports the first extraction of individual antineutrino spectra from ^{235}U and ^{239}Pu fission and an improved measurement of the prompt energy spectrum of reactor antineutrinos at Daya Bay. The analysis uses 3.5×10^{6} inverse beta-decay candidates in four near antineutrino detectors in 1958 days. The individual antineutrino spectra of the two dominant isotopes, ^{235}U and ^{239}Pu, are extracted using the evolution of the prompt spectrum as a function of the isotope fission fractions. In the energy window of 4-6 MeV, a 7% (9%) excess of events is observed for the ^{235}U (^{239}Pu) spectrum compared with the normalized Huber-Mueller model prediction. The significance of discrepancy is 4.0σ for ^{235}U spectral shape compared with the Huber-Mueller model prediction. The shape of the measured inverse beta-decay prompt energy spectrum disagrees with the prediction of the Huber-Mueller model at 5.3σ. In the energy range of 4-6 MeV, a maximal local discrepancy of 6.3σ is observed.

Published
2019

7. Improved measurement of the reactor antineutrino flux at Daya Bay

Author

Yinhong Zhang, J. P. Cummings, Z. Guo, X. L. Ji, H. S. Chen, K. T. McDonald, H. Y. Wei, F. S. Deng, Christopher L. Marshall, J. F. Chang, Jing Wang, S. K. Lin, F. Li, Z. K. Cheng, Z. P. Zhang, Y. Malyshkin, Liangjian Wen, Guofu Cao, Bing-Lin Young, W. H. Tse, C. Lu, T. Wise, M. Qi, J. J. Cherwinka, Li Zhou, Lin Yang, N. Raper, Jinmei Liu, Jing Zhao, S. Li, Jianglai Liu, X. Y. Ma, Yang Yang, H. R. Band, I. Mitchell, Yi Chen, Artem Chukanov, Michael Kramer, K. M. Heeger, Y. Chang, B. Z. Hu, Lawrence Pinsky, Chun S. J. Pun, Zhuojun Hu, Chang-Wei Loh, L. Mora Lepin, S. Kohn, Shanfeng Li, C. Li, H. Liang, Yixue Chen, S. J. Patton, Hongliang Li, L. Lebanowski, Y. Y. Ding, W. R. Edwards, Shaomin Chen, Jun Cao, Xiao-yan Li, A. Higuera, C. G. Yang, E. Naumova, D. A. Dwyer, W. Wang, J. M. Link, T. J. Langford, H. L. Zhuang, Rupert Leitner, Zhi-zhong Xing, Christopher G. White, Jinjuan Ren, Y. C. Lin, T. Hu, S. F. Li, Q. J. Li, Y. L. Chan, L. W. Koerner, H. M. Steiner, X.F. Zhang, X. Wang, M. Ye, Dmitry V. Naumov, Y. B. Hsiung, M. T. Yang, Haoqi Lu, Minfang Yeh, Y. F. Wang, Y. Q. Ma, M. V. Diwan, Honghan Gong, D. C. Jones, R. M. Qiu, X. Q. Li, Haijun Yang, Baobiao Yue, J. Park, B. R. Littlejohn, W. J. Wu, D. A. Martinez Caicedo, W. Gu, Jia Xu, Yufeng Li, K. L. Jen, Yuhang Guo, Siew Cheng Wong, A. B. Balantekin, R. D. McKeown, R. G. Wang, Jiaheng Zou, Z. M. Wang, Wenju Huo, N. Y. Wang, Liang Zhan, B. Viren, Patrick Huber, Yaoyu Zhang, Y. B. Huang, X. T. Zhang, Juan Pedro Ochoa-Ricoux, Shengxin Lin, Miao He, Yunzhe Liu, S. H. Kettell, X. B. Ma, Richard Rosero, Simon Blyth, M. Z. Wang, Ming Chung Chu, Maxim Gonchar, L. H. Wei, G. Hussain, R. A. Johnson, Yang Liu, Rui Zhang, Jiawen Zhang, J. H. C. Lee, Hongzhao Yu, Hanxiong Huang, L. Kang, K. Whisnant, Guey-Lin Lin, Jonathan S. Lu, J. Cheng, J. K. C. Leung, Chunjie Wang, Z. Y. Yu, R. W. Hackenburg, L. Guo, Qinglong Wu, Kam Biu Luk, H. H. Zhang, Tian Xue, Z. Wang, Chao Zhang, Y. K. Heng, Zhibing Li, Jen-Chieh Peng, H. R. Pan, J. Dove, X. C. Ruan, Guanghua Gong, C. E. Tull, Chi Lin, D. Adey, Xiaohui Qian, J. Lee, S. Zeng, M. Dolgareva, H. L. H. Wong, J. L. Sun, E. T. Worcester, F. Z. Qi, Xiaolu Ji, B. Roskovec, D. M. Xia, X. H. Guo, P. Zheng, Feiyang Zhang, Qingmin Zhang, D. Cao, R. T. Lei, D. E. Jaffe, Alexander Olshevskiy, Jim Napolitano, J. J. Ling, Zhijian Zhang, K. Treskov, F. P. An, Y. X. Zhang, C. C. Zhang, Xingtao Huang, M. Bishai, L. S. Littenberg, V. Pec, S. Hans, Mengsu Yang, Vit Vorobel, Wei Li, and Zhiyong Zhang

Subjects
Physics, Physics - Instrumentation and Detectors, hep-ex, 010308 nuclear & particles physics, Fission, Daya bay, Astrophysics::High Energy Astrophysical Phenomena, Analytical chemistry, FOS: Physical sciences, Flux, Instrumentation and Detectors (physics.ins-det), Detailed data, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Yield ratio, Neutron, High Energy Physics::Experiment, 010306 general physics, physics.ins-det
Abstract

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 dominant uncertainty on the neutron detection efficiency is reduced by 56% with respect to the previous measurement through a comprehensive neutron calibration and detailed data and simulation analysis. The new average IBD yield is determined to be $(5.91\pm0.09)\times10^{-43}~\rm{cm}^2/\rm{fission}$ with total uncertainty improved by 29%. The corresponding mean fission fractions from the four main fission isotopes $^{235}$U, $^{238}$U, $^{239}$Pu, and $^{241}$Pu are 0.564, 0.076, 0.304, and 0.056, respectively. The ratio of measured to predicted antineutrino yield is found to be $0.952\pm0.014\pm0.023$ ($1.001\pm0.015\pm0.027$) for the Huber-Mueller (ILL-Vogel) model, where the first and second uncertainty are experimental and theoretical model uncertainty, respectively. This measurement confirms the discrepancy between the world average of reactor antineutrino flux and the Huber-Mueller model., 10 pages, 9 figures, and 2 tables

Published
2019

8. Extraction of the ^{235}U and ^{239}Pu Antineutrino Spectra at Daya Bay

Author

D, Adey, F P, An, A B, Balantekin, H R, Band, M, Bishai, S, Blyth, D, Cao, G F, Cao, J, Cao, J F, Chang, Y, Chang, H S, Chen, S M, Chen, Y, Chen, Y X, Chen, J, Cheng, Z K, Cheng, J J, Cherwinka, M C, Chu, A, Chukanov, J P, Cummings, N, Dash, F S, Deng, Y Y, Ding, M V, Diwan, T, Dohnal, J, Dove, M, Dvořák, D A, Dwyer, M, Gonchar, G H, Gong, H, Gong, W Q, Gu, J Y, Guo, L, Guo, X H, Guo, Y H, Guo, Z, Guo, R W, Hackenburg, S, Hans, M, He, K M, Heeger, Y K, Heng, A, Higuera, Y K, Hor, Y B, Hsiung, B Z, Hu, J R, Hu, T, Hu, Z J, Hu, H X, Huang, X T, Huang, Y B, Huang, P, Huber, D E, Jaffe, K L, Jen, X L, Ji, X P, Ji, R A, Johnson, D, Jones, L, Kang, S H, Kettell, L W, Koerner, S, Kohn, M, Kramer, T J, Langford, J, Lee, J H C, Lee, R T, Lei, R, Leitner, J K C, Leung, C, Li, F, Li, H L, Li, Q J, Li, S, Li, S C, Li, S J, Li, W D, Li, X N, Li, X Q, Li, Y F, Li, Z B, Li, H, Liang, C J, Lin, G L, Lin, S, Lin, J J, Ling, J M, Link, L, Littenberg, B R, Littlejohn, J C, Liu, J L, Liu, Y, Liu, Y H, Liu, C, Lu, H Q, Lu, J S, Lu, K B, Luk, X B, Ma, X Y, Ma, Y Q, Ma, C, Marshall, D A, Martinez Caicedo, K T, McDonald, R D, McKeown, I, Mitchell, L, Mora Lepin, J, Napolitano, D, Naumov, E, Naumova, J P, Ochoa-Ricoux, A, Olshevskiy, H-R, Pan, J, Park, S, Patton, V, Pec, J C, Peng, L, Pinsky, C S J, Pun, F Z, Qi, M, Qi, X, Qian, N, Raper, J, Ren, R, Rosero, B, Roskovec, X C, Ruan, H, Steiner, J L, Sun, K, Treskov, W-H, Tse, C E, Tull, B, Viren, V, Vorobel, C H, Wang, J, Wang, M, Wang, N Y, Wang, R G, Wang, W, Wang, X, Wang, Y, Wang, Y F, Wang, Z, Wang, Z M, Wang, H Y, Wei, L H, Wei, L J, Wen, K, Whisnant, C G, White, H L H, Wong, S C F, Wong, E, Worcester, Q, Wu, W J, Wu, D M, Xia, Z Z, Xing, J L, Xu, T, Xue, C G, Yang, L, Yang, M S, Yang, Y Z, Yang, M, Ye, M, Yeh, B L, Young, H Z, Yu, Z Y, Yu, B B, Yue, S, Zeng, Y, Zeng, L, Zhan, C, Zhang, C C, Zhang, F Y, Zhang, H H, Zhang, J W, Zhang, Q M, Zhang, R, Zhang, X F, Zhang, X T, Zhang, Y M, Zhang, Y X, Zhang, Y Y, Zhang, Z J, Zhang, Z P, Zhang, Z Y, Zhang, J, Zhao, L, Zhou, H L, Zhuang, and J H, Zou

Abstract

This Letter reports the first extraction of individual antineutrino spectra from ^{235}U and ^{239}Pu fission and an improved measurement of the prompt energy spectrum of reactor antineutrinos at Daya Bay. The analysis uses 3.5×10^{6} inverse beta-decay candidates in four near antineutrino detectors in 1958 days. The individual antineutrino spectra of the two dominant isotopes, ^{235}U and ^{239}Pu, are extracted using the evolution of the prompt spectrum as a function of the isotope fission fractions. In the energy window of 4-6 MeV, a 7% (9%) excess of events is observed for the ^{235}U (^{239}Pu) spectrum compared with the normalized Huber-Mueller model prediction. The significance of discrepancy is 4.0σ for ^{235}U spectral shape compared with the Huber-Mueller model prediction. The shape of the measured inverse beta-decay prompt energy spectrum disagrees with the prediction of the Huber-Mueller model at 5.3σ. In the energy range of 4-6 MeV, a maximal local discrepancy of 6.3σ is observed.

Published
2019

9. Measurement of the Electron Antineutrino Oscillation with 1958 Days of Operation at Daya Bay

Author

Hongzhao Yu, Hanxiong Huang, L. Kang, J. K. C. Leung, Yanchu Wang, Li Zhou, Alexander Olshevskiy, D. Cao, S. H. Kettell, Miao He, J. J. Ling, S. J. Patton, D. E. Jaffe, Christopher G. White, X. B. Ma, Xingtao Huang, M. Bishai, Jinjuan Ren, Y. L. Chan, H. R. Band, H. Liang, Yixue Chen, H. L. Zhuang, S. Kohn, E. T. Worcester, M. Ye, Wenxiao Wang, Haifeng Li, F. Z. Qi, Jen-Chieh Peng, L. S. Littenberg, Juan Pedro Ochoa-Ricoux, T. Wise, Maxim Gonchar, Yanping Huang, R. T. Lei, Y. C. Lin, W. R. Edwards, D. Taychenachev, R. A. Johnson, G. Hussain, X. L. Ji, V. Vorobel, Jianrun Hu, Patrick Huber, X. Wang, Qingmin Zhang, Jiawen Zhang, Quanyin Li, Yinhong Zhang, Minfang Yeh, Chang-Wei Loh, B. R. Littlejohn, Xiaolu Ji, D. M. Xia, H. Y. Wei, F. S. Deng, X. T. Zhang, Z. Guo, B. Roskovec, R. Zhang, L. Lebanowski, Y. Y. Ding, Shengxin Lin, Z. K. Cheng, Z. P. Zhang, Jianglai Liu, Bing-Lin Young, Xiaohui Qian, D. Adey, Jim Napolitano, J. Lee, Honghan Gong, Yaoyu Zhang, Yang Yang, D. A. Martinez Caicedo, S. Zeng, M. Dolgareva, Michael Kramer, L. Mora Lepin, Y. H. Chang, E. Naumova, D. A. Dwyer, K. T. McDonald, H. L. H. Wong, T. J. Langford, Guey-Lin Lin, Jonathan S. Lu, Baobiao Yue, X.F. Zhang, Xiao-yan Li, A. Higuera, Zhi-zhong Xing, C. H. Wang, H. M. Steiner, X. C. Ruan, Huijun Zhang, P. Zheng, Feiyang Zhang, Haijun Yang, L. Guo, R. G. Wang, M. Qi, W. J. Wu, Siew Cheng Wong, R. D. McKeown, Ye Chen, Chao Zhang, J. Park, Liang Zhan, Changjian Lin, Yang Heng, Jiaheng Zou, Mengsu Yang, Haonan Lu, Shanfeng Li, H. R. Pan, T. Hu, Xiaohu Guo, M. T. Yang, J. H. C. Lee, B. Z. Hu, F. Li, Yunzhe Liu, C. E. Tull, W. H. Tse, Christopher L. Marshall, J. F. Chang, W. Gu, Z. Y. Yu, D. C. Jones, Zhibing Li, Yufeng Li, J. M. Link, J. P. Cummings, A. B. Balantekin, Rupert Leitner, Changgen Yang, K. M. Heeger, K. L. Jen, Jing Wang, C. Lu, J. L. Xu, Wenju Huo, S. K. Lin, Y. Malyshkin, Liangjian Wen, Guofu Cao, Qinglong Wu, Kam Biu Luk, Chun S. J. Pun, Artem Chukanov, Lawrence Pinsky, Zhuojun Hu, Shaomin Chen, Jun Cao, J. L. Sun, S. F. Li, Tian Xue, Y. X. Zhang, Simon Blyth, Dmitry V. Naumov, M. Z. Wang, Ming Chung Chu, C. Li, Richard Rosero, W. Tang, N. Y. Wang, B. Viren, L. H. Wei, Z. M. Wang, Yanhui Ma, K. Whisnant, J. Cheng, Yanlin Liu, Wei Li, Zhijian Zhang, K. Treskov, Zhiyong Zhang, F. P. An, C. C. Zhang, Hucheng Chen, V. Pec, S. Hans, R. W. Hackenburg, Z. Wang, Guanghua Gong, J. J. Cherwinka, N. Raper, L. W. Koerner, Yicheng Guo, Y. B. Hsiung, M. V. Diwan, R. M. Qiu, X. Q. Li, Lin Yang, Jinmei Liu, Jing Zhao, S. Li, X. Y. Ma, and I. Mitchell

Subjects
Physics, Physics - Instrumentation and Detectors, 010308 nuclear & particles physics, Oscillation, hep-ex, Daya bay, General Physics and Astronomy, Inverse, FOS: Physical sciences, Daya Bay Reactor Neutrino Experiment, Instrumentation and Detectors (physics.ins-det), 01 natural sciences, Spectral line, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, 010306 general physics, Electron neutrino, physics.ins-det, Energy (signal processing)
Abstract

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

Published
2018

10. Seasonal variation of the underground cosmic muon flux observed at Daya Bay

Author

T. J. Langford, K. V. Tsang, H. M. Steiner, Y. Q. Ma, Artem Chukanov, Lawrence Pinsky, Michael Kramer, J. J. Cherwinka, Patrick Huber, S. J. Patton, W. Q. Gu, X. T. Zhang, Qinglong Wu, S. H. Kettell, X. B. Ma, Shengxin Lin, A. Khan, Tian Xue, W. J. Wu, Chang-Wei Loh, R. D. McKeown, Xiaohu Guo, Richard Rosero, L. Lebanowski, H. L. Zhuang, Y. K. Heng, Y. Y. Ding, M. Ye, T. Wise, J. F. Chang, M. Qi, Alexander Olshevskiy, M. T. Yang, Maxim Gonchar, D. C. Jones, D. Taychenachev, S. Hans, Changgen Yang, K. Whisnant, J. Cheng, E. T. Worcester, Y. Xu, E. C. Huang, A. B. Balantekin, G. Hussain, Y. Nakajima, H. S. Chen, C. Li, W. Tang, K. K. Kwan, Y. L. Chan, F. Z. Qi, Chun S. J. Pun, R. A. Johnson, M. W. Kwok, N. Y. Wang, C. Lu, B. Viren, J. J. Ling, Shaomin Chen, Jun Cao, N. Viaux, J. L. Xu, X. L. Ji, Christopher G. White, B. Z. Hu, Xin Qian, Jiawen Zhang, H. H. Zhang, Minfang Yeh, J. B. Jiao, Vit Vorobel, S. F. Li, W. R. Edwards, Guisen Li, Honghan Gong, Rupert Leitner, Zhijian Zhang, Z. Guo, Dmitry V. Naumov, H. R. Band, C. H. Wang, R. T. Lei, Hanxiong Huang, L. Kang, Xingtao Huang, Yang Yang, Y. C. Lin, B. Roskovec, Xiao-yan Li, K. Treskov, Wei Li, A. Higuera, S. Zeng, J. Park, Jen-Chieh Peng, Siew Cheng Wong, L. H. Whitehead, Zhi-zhong Xing, Z. Y. Yu, X. Wang, Li Zhou, H. Y. Wei, F. P. An, Wenju Huo, Yicheng Guo, K. T. McDonald, Haoqi Lu, H. Liang, Yixue Chen, Jiaheng Zou, Jinjuan Ren, D. A. Martinez Caicedo, M. Bishai, J. H. C. Lee, Haijun Yang, Q. J. Li, Dejun Li, Y. F. Wang, Yi Chen, Y. B. Hsiung, Shanfeng Li, Bing-Lin Young, J. Dove, B. R. Littlejohn, Wei Wang, C. C. Zhang, C. H. Wu, M. V. Diwan, L. S. Littenberg, R. M. Qiu, X. Q. Li, T. Kwok, Guey-Lin Lin, R. W. Hackenburg, R. G. Wang, Z. Wang, Simon Blyth, M. Z. Wang, Ming Chung Chu, Yufeng Li, K. L. Jen, N. Raper, Jonathan S. Lu, Z. Ye, Liang Zhan, Marco Grassi, Miao He, Y. X. Zhang, X. C. Ruan, Kam-Biu Luk, S. K. Lin, L. Guo, Y. H. Chang, F. Li, H. R. Pan, D. M. Xia, Chao Zhang, Z. B. Li, Zhiyong Zhang, S. Jetter, Y. Malyshkin, J. L. Sun, Lin Yang, Z. M. Wang, Jinmei Liu, C. Sebastiani, Liangjian Wen, Jing Zhao, X. Y. Ma, Guofu Cao, I. Mitchell, Jianglai Liu, S. Kohn, D. Cao, Guanghua Gong, C. E. Tull, Z. K. Cheng, Z. P. Zhang, D. E. Jaffe, Chi Lin, Juan Pedro Ochoa-Ricoux, Qingmin Zhang, Q. Y. Chen, Jim Napolitano, Y. M. Zhang, J. M. Link, J. P. Cummings, J. Lee, M. Dolgareva, H. L. H. Wong, Kwong Lau, K. M. Heeger, V. Pec, X. P. Ji, Mengsu Yang, J. K. Xia, T. Hu, H. Y. Ngai, R. L. Gill, E. Naumova, and D. A. Dwyer

Subjects
Physics - Instrumentation and Detectors, Correlation coefficient, Physics::Instrumentation and Detectors, cosmic ray experiments, neutrino detectors, neutrino experiments, Flux, FOS: Physical sciences, Atmospheric sciences, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, medicine, 010306 general physics, Physics, COSMIC cancer database, Muon, 010308 nuclear & particles physics, Astronomy and Astrophysics, Instrumentation and Detectors (physics.ins-det), Seasonality, Atmospheric temperature, medicine.disease, Overburden, Neutrino detector, High Energy Physics::Experiment
Abstract

The Daya Bay Experiment consists of eight identically designed detectors located in three underground experimental halls named as EH1, EH2, EH3, with 250, 265 and 860 meters of water equivalent vertical overburden, respectively. Cosmic muon events have been recorded over a two-year period. The underground muon rate is observed to be positively correlated with the effective atmospheric temperature and to follow a seasonal modulation pattern. The correlation coefficient $\alpha$, describing how a variation in the muon rate relates to a variation in the effective atmospheric temperature, is found to be $\alpha_{\text{EH1}} = 0.362\pm0.031$, $\alpha_{\text{EH2}} = 0.433\pm0.038$ and $\alpha_{\text{EH3}} = 0.641\pm0.057$ for each experimental hall., Comment: Updated to be identical to the published version

Published
2018

11. Improved measurement of the reactor antineutrino flux and spectrum at Daya Bay

Author

P. Jaffke, Y. K. Hor, L. Guo, H. H. Zhang, J. Lee, F. Li, Chao Zhang, S. Zeng, M. Dolgareva, Jen-Chieh Peng, C. Li, H. L. H. Wong, Y. X. Zhang, Marco Grassi, Miao He, J. Dove, J. P. Cummings, S. H. Kettell, X. B. Ma, J. J. Cherwinka, Z. M. Wang, S. J. Patton, W. Q. Gu, X. P. Ji, X. C. Ruan, J. B. Jiao, J. Joshi, Z. Guo, Michael Kramer, Chun S. J. Pun, Hanxiong Huang, L. Kang, Yi-Fang Zhao, Maxim Gonchar, K. M. Heeger, W. Tang, H. L. Zhuang, M. V. Diwan, Haosheng Chen, Shaomin Chen, Jun Cao, Rupert Leitner, K. T. McDonald, J. M. Link, S. K. Lin, R. A. Johnson, N. Y. Wang, M. Qi, Vit Vorobel, S. F. Li, C. H. Wu, W. J. Wu, Changgen Yang, Changjian Lin, B. Viren, Richard Rosero, R. D. McKeown, J. K. Xia, Jiawen Zhang, Yanchu Wang, Y. Malyshkin, Dmitry V. Naumov, R. T. Lei, H. R. Band, D. C. Jones, Wei Li, A. B. Balantekin, Kwong Lau, X. L. Ji, C. Lu, J. L. Xu, H. Y. Ngai, R. L. Gill, Meng Wang, H. Liang, Yixue Chen, G. X. Sun, N. Viaux, Liangjian Wen, Y. C. Lin, Guofu Cao, H. Y. Wei, T. Hu, Y. L. Chan, Mengsu Yang, Bing-Lin Young, Haijun Yang, X. Wang, M. Mooney, W. R. Cen, Xingtao Huang, D. W. Liu, Minfang Yeh, T. Kwok, M. Bishai, Qinglong Wu, Kam Biu Luk, D. M. Xia, Zhiyong Zhang, Haoqi Lu, Dejun Li, Guey-Lin Lin, Y. Nakajima, Jonathan S. Lu, Z. Ye, H. R. Pan, L. S. Littenberg, L. H. Whitehead, Yi Chen, Chunjie Wang, N. Raper, Tian Xue, J. H. Cheng, M. W. Kwok, E. Naumova, D. A. Dwyer, B. Roskovec, Zhi Ning, Y. Chang, Q. J. Li, Xiaohu Guo, M. T. Yang, Chang-Wei Loh, Xuefeng Ding, T. J. Langford, Y. K. Heng, Mengyun Guan, K. V. Tsang, Yufeng Li, K. L. Jen, Li Zhou, B. R. Littlejohn, C. E. Tull, Shanfeng Li, H. M. Steiner, L. Lebanowski, Y. Y. Ding, Z. K. Cheng, D. Cao, Y. Q. Ma, Z. P. Zhang, Zhijian Zhang, M. Ye, K. Whisnant, J. Cheng, Artem Chukanov, Juan Pedro Ochoa-Ricoux, Nan Zhou, Zhibing Li, K. Treskov, D. Taychenachev, Alexander Olshevskiy, Lawrence Pinsky, K. K. Kwan, G. Hussain, R. P. Guo, Y. Xu, E. C. Huang, Yaping Cheng, Qingmin Zhang, V. Pec, J. J. Ling, Q. W. Zhao, Q. Y. Chen, S. Hans, B. Z. Hu, Guisen Li, Jim Napolitano, Li Chang, W. L. Zhong, F. P. An, Honghan Gong, Qingming Ma, Siew Cheng Wong, W. R. Edwards, Y. B. Hsiung, Ran Han, Jiaheng Zou, Lin Yang, Jinmei Liu, Jing Zhao, X. Y. Ma, J. Y. Xu, I. Mitchell, S. Jetter, Wenju Huo, Simon Blyth, Ming Chung Chu, W. Hu, Zeyuan Yu, Xin Qian, S. Kohn, Xiao-yan Li, A. Higuera, Zhi-zhong Xing, Ziyan Deng, Jianglai Liu, Jinjuan Ren, W. H. Wang, R. W. Hackenburg, Z. Wang, Guanghua Gong, Y. M. Zhang, D. E. Jaffe, T. Wise, Patrick Huber, J. F. Chang, X. T. Zhang, Shengxin Lin, D. A. Martinez Caicedo, J. L. Sun, R. G. Wang, J. Park, J. H. C. Lee, Liang Zhan, E. T. Worcester, Z. Lv, F. Z. Qi, J. de Arcos, and Christopher G. White

Subjects
Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, Daya bay, energy spectrum, Flux, FOS: Physical sciences, Daya Bay Reactor Neutrino Experiment, antineutrino flux, Daya Bay, reactor, 01 natural sciences, High Energy Physics - Experiment, Positron energy, Physics::Geophysics, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Energy spectrum, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, Instrumentation, Physics, 010308 nuclear & particles physics, Astronomy and Astrophysics, Instrumentation and Detectors (physics.ins-det), Inverse beta decay, High Energy Physics::Experiment
Abstract

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$_{\mathrm{th}}$ nuclear reactors and detected by eight antineutrino detectors deployed in two near (560~m and 600~m flux-weighted baselines) and one far (1640~m flux-weighted baseline) underground experimental halls. With 621 days of data, more than 1.2 million inverse beta decay (IBD) candidates were detected. The IBD yield in the eight detectors was measured, and the ratio of measured to predicted flux was found to be $0.946\pm0.020$ ($0.992\pm0.021$) for the Huber+Mueller (ILL+Vogel) model. A 2.9~$\sigma$ deviation was found in the measured IBD positron energy spectrum compared to the predictions. In particular, an excess of events in the region of 4-6~MeV was found in the measured spectrum, with a local significance of 4.4~$\sigma$. A reactor antineutrino spectrum weighted by the IBD cross section is extracted for model-independent predictions., Comment: version published in Chinese Physics C

Published
2017

12. Limits on Active to Sterile Neutrino Oscillations from Disappearance Searches in the MINOS, Daya Bay, and Bugey-3 Experiments

Author

Rakesh Sharma, S. Childress, Wenju Huo, H. H. Zhang, D. Cao, A. Schreckenberger, N. Graf, C. D. Moore, R. Gran, Carlos Escobar, Simon Blyth, R. K. Plunkett, X. L. Ji, S. Moed Sher, Haosheng Chen, M. Z. Wang, Ming Chung Chu, D. Torretta, W. Hu, G. J. Bock, J. M. Link, N. Poonthottathil, Jen-Chieh Peng, J. K. Xia, J. Lee, R. W. Hackenburg, S. Zeng, X. Qiu, M. Dolgareva, Carl White, Z. Wang, J. Dove, Chun S. J. Pun, C. M. Castromonte, J. Joshi, J. P. Cummings, M. M. Medeiros, Michael Kramer, L. Corwin, W. J. Wu, R. D. McKeown, P. Sail, Shaomin Chen, Jun Cao, Xuefeng Ding, Z. K. Cheng, Z. P. Zhang, H. L. H. Wong, Y. X. Zhang, X. P. Ji, J. Hartnell, P. Lucas, Hanxiong Huang, S. C. Tognini, Rupert Leitner, M. Qi, Changjian Lin, Gregory J Pawloski, J. Park, L. Kang, J. K. C. Leung, Li Zhou, R. Mehdiyev, K. L. Jen, S. H. Kettell, Yaping Cheng, T. Hu, X. B. Ma, R. B. Patterson, Zhijian Zhang, T. Wise, A. B. Balantekin, S. F. Li, C. Li, Lin Yang, S. R. Mishra, C. James, Yanchu Wang, C. Rosenfeld, X. T. Zhang, M. Mooney, Vit Vorobel, K. Treskov, Dmitry V. Naumov, M. Orchanian, H. Y. Ngai, R. L. Gill, Marco Grassi, Miao He, A. E. Kreymer, D. D. Phan, N. Viaux, S. R. Hahn, Kwong Lau, P. Schreiner, Y. L. Chan, R. Toner, B. Z. Hu, R. Hatcher, D. Cronin-Hennessy, G. X. Sun, B. Rebel, H. A. Rubin, S. K. Lin, J. H. C. Lee, T. Kafka, Jinmei Liu, Jing Zhao, Alec Habig, K. Grzelak, Z. Isvan, L. Mualem, X. Y. Ma, J. Y. Xu, Wei Li, W. A. Mann, F. P. An, T. J. Carroll, P. Adamson, Yanfeng Zhang, S. J. Patton, W. Q. Gu, Y. C. Lin, Mengsu Yang, H. R. Gallagher, Maxim Gonchar, D. W. Liu, Minfang Yeh, Y. Malyshkin, A. Perch, A. Radovic, J. Schneps, I. Mitchell, Harvey B Newman, W. Tang, S. M. S. Kasahara, Marvin L Marshak, X. Wang, P. Gouffon, Liangjian Wen, S. De Rijck, R. A. Johnson, A. Holin, Guofu Cao, Guanghua Gong, X. Tian, Alexander Olshevskiy, M. Bishai, K. T. McDonald, S. Jetter, Haoqi Lu, Dejun Li, W. Flanagan, Wei Wang, B. Roskovec, Jiawen Zhang, Zengcai V. Guo, Y. K. Hor, L. Guo, J. Cheng, Chao Zhang, Jianglai Liu, E. T. Worcester, Z. Lv, F. Z. Qi, H. L. Zhuang, E. Falk, Haijun Yang, J. de Arcos, J. Urheim, Guisen Li, J. J. Cherwinka, G. M. Irwin, Zhiyong Zhang, Honghan Gong, Z. Y. Deng, C. E. Tull, N. Y. Wang, Jinjuan Ren, B. Viren, J. H. Cheng, G. J. Feldman, L. S. Littenberg, C. H. Wu, Zhi Ning, I. Anghel, M. A. Thomson, D. Naples, Stanley G. Wojcicki, Li Chang, Y. Xu, E. C. Huang, Karol Lang, Q. W. Zhao, F. Li, B. R. Littlejohn, H. Y. Wei, Yi-Fang Zhao, G. Koizumi, Qingming Ma, V. Pec, R. L. Talaga, J. J. Ling, Yufeng Li, J. O'Connor, J. Hylen, Y. B. Hsiung, R. J. Nichol, W. L. Zhong, M. C. Goodman, M. V. Frohne, T. Kwok, N. Tagg, N. Mayer, J. B. Jiao, R. A. Gomes, M. C. Sanchez, M. V. Diwan, Guey-Lin Lin, Jonathan S. Lu, Z. Ye, R. B. Pahlka, Qinglong Wu, G.D. Barr, Junwei Huang, Leigh H. Whitehead, Kam Biu Luk, Chunjie Wang, M. Y. Gabrielyan, Siew Cheng Wong, Tian Xue, W. R. Cen, R. T. Lei, K. M. Heeger, J. R. Meier, Xin Qian, Juergen Thomas, Y. K. Heng, Z. M. Wang, Q. J. Li, S. V. Cao, J. A. Nowak, Ran Han, Jiaheng Zou, S. Hans, Mengyun Guan, J. A. Musser, Xiao-yan Li, A. Higuera, X. T. Huang, J. M. Paley, K. Whisnant, Zhi-zhong Xing, Joao A B Coelho, Juan Pedro Ochoa-Ricoux, H. R. Band, K. V. Tsang, H. Liang, Yixue Chen, M. Kordosky, Andrew Blake, J. L. Sun, Artem Chukanov, Lawrence Pinsky, A. Timmons, N. Raper, Richard Rosero, J. F. Chang, Changgen Yang, C. Lu, J. L. Xu, L. H. Whitehead, Ning Zhou, Y. Chang, Shanfeng Li, J. J. Evans, M. M. Pfützner, D. E. Jaffe, Y. Nakajima, Yi Chen, R. C. Webb, M. W. Kwok, L. Lebanowski, Y. Y. Ding, D. M. Xia, J. K. De Jong, S. Phan-Budd, A. Sousa, K. K. Kwan, N. E. Devenish, P. J. Litchfield, R. P. Guo, G. Tzanakos, C. L. McGivern, S. Kohn, S. Germani, Warner A. Miller, A. V. Devan, Bing-Lin Young, D. Bogert, A. Aurisano, W. R. Edwards, E. Naumova, D. A. Dwyer, T. J. Langford, H. M. Steiner, P. Vahle, Y. Q. Ma, Patrick Huber, Shengxin Lin, D. A. Martinez Caicedo, J. K. Nelson, R. G. Wang, D. A. Jensen, Liang Zhan, M. D. Messier, A. C. Weber, X. C. Ruan, Qingmin Zhang, Q. Y. Chen, Jim Napolitano, Xiaohu Guo, M. T. Yang, Hao Pan, C. W. Loh, Z. Y. Yu, Zhibing Li, M. Ye, D. Taychenachev, G. Hussain, J. Todd, P. Jaffke, and R. Chen

Subjects
Physics, Particle physics, Sterile neutrino, Liquid Scintillator Neutrino Detector, 010308 nuclear & particles physics, Physics::Instrumentation and Detectors, High Energy Physics::Phenomenology, General Physics and Astronomy, FOS: Physical sciences, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, MiniBooNE, High Energy Physics - Experiment (hep-ex), MINOS, 0103 physical sciences, Measurements of neutrino speed, High Energy Physics::Experiment, Neutrino, 010306 general physics, Neutrino oscillation, Electron neutrino, QC
Abstract

Searches for a light sterile neutrino have been performed independently by the MINOS and the Daya Bay experiments using the muon (anti)neutrino and electron antineutrino disappearance channels, respectively. In this Letter, results from both experiments are combined with those from the Bugey-3 reactor neutrino experiment to constrain oscillations into light sterile neutrinos. The three experiments are sensitive to complementary regions of parameter space, enabling the combined analysis to probe regions allowed by the LSND and MiniBooNE experiments in a minimally extended four-neutrino flavor framework. Stringent limits on $\sin^2 2\theta_{\mu e}$ are set over 6 orders of magnitude in the sterile mass-squared splitting $\Delta m^2_{41}$. The sterile-neutrino mixing phase space allowed by the LSND and MiniBooNE experiments is excluded for $\Delta m^2_{41} < 0.8$ eV$^2$ at 95% CL$_s$., Comment: 8 pages, 4 figures, published in Physical Review Letters. Data release found at http://www-numi.fnal.gov/PublicInfo/forscientists.html and at https://wiki.bnl.gov/dayabay/index.php?title=Daya_Bay%27s_Sterile_Neutrino_Results_in_2016

Published
2016

13. Improved Search for a Light Sterile Neutrino with the Full Configuration of the Daya Bay Experiment

Author

W. Tang, Hanxiong Huang, L. Kang, J. K. C. Leung, Simon Blyth, M. Z. Wang, Ming Chung Chu, N. Y. Wang, Jiawen Zhang, B. Viren, W. Hu, Jen-Chieh Peng, Yanchu Wang, Vit Vorobel, Guisen Li, Wei Li, J. J. Cherwinka, J. Dove, X. C. Ruan, J. P. Cummings, Honghan Gong, D. Cao, H. Y. Wei, Zhijian Zhang, Qingming Ma, M. Qi, C. Li, Kwong Lau, Qinglong Wu, Kam Biu Luk, K. Treskov, Bing-Lin Young, Y. K. Hor, Siew Cheng Wong, K. T. McDonald, G. X. Sun, Tian Xue, Guanghua Gong, D. A. Martinez Caicedo, Ning Zhou, L. Guo, Ran Han, Jiaheng Zou, J. Cheng, Michael Kramer, Mengsu Yang, Zhiyong Zhang, Y. K. Heng, F. P. An, S. Hans, Mengyun Guan, L. Lebanowski, Y. Y. Ding, Y. M. Zhang, F. Li, T. Kwok, Chao Zhang, Guey-Lin Lin, M. Ye, S. J. Patton, W. Q. Gu, Jonathan S. Lu, Dongmei Xia, C. H. Wu, D. E. Jaffe, Li Chang, Z. Ye, Yi-Fang Zhao, W. J. Wu, R. D. McKeown, Richard Rosero, Ziyan Deng, K. K. Kwan, K. Whisnant, R. G. Wang, Jianglai Liu, D. Taychenachev, T. Wise, Chunjie Wang, Qingmin Zhang, Y. B. Hsiung, G. Hussain, R. P. Guo, H. L. Zhuang, Xin Qian, Q. Y. Chen, Liang Zhan, B. Z. Hu, M. V. Diwan, P. Jaffke, J. L. Sun, Alexander Olshevskiy, Z. K. Cheng, Z. P. Zhang, Jim Napolitano, Y. Nakajima, Xiao-yan Li, A. Higuera, Haosheng Chen, Juan Pedro Ochoa-Ricoux, E. T. Worcester, Z. Lv, Y. Xu, Zhi-zhong Xing, E. C. Huang, F. Z. Qi, S. H. Kettell, M. W. Kwok, X. B. Ma, Jinjuan Ren, Xiaohu Guo, M. T. Yang, H. H. Zhang, X. L. Ji, J. M. Link, J. de Arcos, Marco Grassi, J. J. Ling, Miao He, W. R. Cen, W. R. Edwards, H. R. Pan, K. V. Tsang, Xingtao Huang, Q. W. Zhao, Yi Chen, E. Naumova, D. A. Dwyer, Q. J. Li, C. W. Loh, M. Bishai, Artem Chukanov, T. J. Langford, K. L. Jen, V. Pec, Yaping Cheng, Lin Yang, J. Joshi, R. W. Hackenburg, Maxim Gonchar, Z. Y. Yu, L. S. Littenberg, Lawrence Pinsky, J. B. Jiao, Z. Wang, H. M. Steiner, Y. Q. Ma, C. E. Tull, J. Park, Jinmei Liu, Rupert Leitner, Jing Zhao, Zhibing Li, X. Y. Ma, J. Y. Xu, Christopher G. White, Zhi Ning, Xuefeng Ding, S. Kohn, S. Jetter, W. L. Zhong, Li Zhou, I. Mitchell, R. A. Johnson, J. H. C. Lee, R. T. Lei, J. Lee, H. R. Band, K. M. Heeger, Y. L. Chan, H. Liang, Yixue Chen, A. B. Balantekin, S. K. Lin, Wei Wang, S. Zeng, M. Dolgareva, H. L. H. Wong, Y. X. Zhang, N. Raper, Y. Malyshkin, D. W. Liu, Liangjian Wen, Guofu Cao, Zengcai V. Guo, X. P. Ji, Minfang Yeh, B. Roskovec, Patrick Huber, X. T. Zhang, H. Y. Ngai, R. L. Gill, N. Viaux, J. K. Xia, T. Hu, Shengxin Lin, Changjian Lin, Haijun Yang, L. H. Whitehead, Yufeng Li, M. Mooney, Y. Chang, Chun S. J. Pun, Shaomin Chen, Jun Cao, Shanfeng Li, S. F. Li, Dmitry V. Naumov, J. H. Cheng, Y. C. Lin, J. F. Chang, B. R. Littlejohn, X. Wang, Changgen Yang, Haoqi Lu, Dejun Li, C. Lu, J. L. Xu, Zhiyuan Wang, and Wenju Huo

Subjects
Physics, Range (particle radiation), Sterile neutrino, Particle physics, 010308 nuclear & particles physics, Daya bay, General Physics and Astronomy, FOS: Physical sciences, Daya Bay Reactor Neutrino Experiment, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Calibration, Neutrino, 010306 general physics, Electron neutrino, Mixing (physics)
Abstract

This Letter reports an improved search for light sterile neutrino mixing in the electron antineutrino disappearance channel with the full configuration of the Daya Bay Reactor Neutrino Experiment. With an additional 404 days of data collected in eight antineutrino detectors, this search benefits from 3.6 times the statistics available to the previous publication, as well as from improvements in energy calibration and background reduction. A relative comparison of the rate and energy spectrum of reactor antineutrinos in the three experimental halls yields no evidence of sterile neutrino mixing in the $2\times10^{-4} \lesssim |\Delta m^{2}_{41}| \lesssim 0.3$ eV$^{2}$ mass range. The resulting limits on $\sin^{2}2\theta_{14}$ are improved by approximately a factor of 2 over previous results and constitute the most stringent constraints to date in the $|\Delta m^{2}_{41}| \lesssim 0.2$ eV$^{2}$ region., Comment: 6 pages, 3 figures, 1 table

Published
2016
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14. Deformation Behavior of Braced Excavation and Its Influence on Adjacent Piles

Author

Z. K. Cheng, G. H. Li, J. H. Wang, and Y. C. Ding

Subjects
Metro station, Engineering, business.industry, Numerical modeling, Deformation control, Geotechnical engineering, Excavation, Structural engineering, Deformation (meteorology), business, Retaining wall, Field monitoring
Abstract

A three-dimensional numerical modeling combined with in-situ measurements was performed to investigate the deformation behavior of a braced excavation for construction of underground metro station and its influence on the adjacent piles. The computed lateral deformation of the retaining wall agrees well with those of the field monitoring, indicating that it is feasible to use numerical model to predict the deformation of the embedded piles, which can not be acquired at the site. The study reveals that the design and construction countermeasures adopted in this project restrict the deformation of the retaining structures as well as the embedded piles, and ensure the safety of the structures effectively.

Published
2013

15. Analysis of Waterfront Excavation Adjacent to Pile-supported Wharves

Author

J. H. Wang, Y. C. Ding, Z. K. Cheng, D. G. Wang, J. Z. Hang, and Q. Gu

Subjects
Safety factor, Lateral earth pressure, Sheet pile, Bending stiffness, Composite number, Geotechnical engineering, Excavation, musculoskeletal system, Pile, Geology, Diaphragm (structural system)
Abstract

The two-dimensional numerical simulations were carried out to investigate the performances of the diaphragm wall scheme and the composite steel sheet pile wall scheme for a waterfront braced excavation adjacent to the pile-supported wharves, of which the lateral displacement as well as the safety factor of stability of the two retaining structures were analyzed. The results reveal that the composite steel sheet pile wall can exert the greater global bending stiffness and reduce the lateral soil pressure. Therefore, the maximum lateral displacement of the composite steel sheet pile wall is only one-third that of the diaphragm wall and the safety factor against basal heave is higher than the diaphragm wall.

Published
2013

16. Numerical Analysis on Deformation of Braced Excavation with Top-down Method

Author

J. C. Liu, D. G. Wang, K. H. Gu, Y. C. Ding, J. H. Wang, and Z. K. Cheng

Subjects
Computer simulation, Settlement (structural), business.industry, Numerical analysis, Excavation, Geotechnical engineering, Structural engineering, Deformation (meteorology), business, Retaining wall, Subsoil, Lateral displacement, Geology
Abstract

A three-dimensional numerical simulation based on FLAC3D was carried out to investigate the deformation characteristics of a braced excavation with top-down method in typical Shanghai soft soil deposits. The lateral displacement of the retaining wall, the ground surface settlement, and the subsoil movement outside the excavation were studied in detail. The predicted ground surface settlement curves agree well with the empirical ones, therefore, the reliability of the calculated results is verified, which can provide a useful guidance for engineers in design and analysis of similar excavation projects with top-down method.

Published
2013

17. Genomic characterization of Rim2 / Hipa elements reveals a CACTA-like transposon superfamily with unique features in the rice genome.

Author

G.-D. Wang, P.-F. Tian, Z.-K. Cheng, G. Wu, J.-M. Jiang, D.-B. Li, Q. Li, and Z.-H. He

Subjects
RICE genetics, TRANSPOSONS, PATHOGENIC microorganisms, GLYCOPROTEINS, GENETIC code
Abstract

The availability of huge amounts of rice genome sequence now permits large-scale analysis of the structure and molecular characteristics of the previously identified transposase-encoding Rim2 (also called Hipa) element, which is transcriptionally activated by infection with the fungal pathogen Magnaporthe grisea and by treatment with the corresponding fungal elicitor. Based on genomic cloning and data mining from 230 Mb of rice genome sequence, 347 Rim2 elements, with an average size of 5.8 kb, were identified. This indicates that an estimated total of 600?700 Rim2 elements are present in the whole genome. Rim2 insertions occur non-randomly on the chromosomes, as visualized by fluorescence in situ hybridization. The elements harbor 16-bp terminal inverted repeats with the core sequence CACTG, 16-bp sub-terminal repeats, internal variable regions, 3-bp target sequence duplications in the flanking regions, and genes coding for Rim2 proteins (the putative transposase) and hydroxyproline-rich glycoproteins. High levels of insertion into genic regions are observed for members of this family, and the transposition history of the family can be deduced from the high level of shared sequences and analysis of repeat target sites of the elements. Phylogenetic analysis indicates that the putative RIM2 proteins fall into a subgroup distinct from the TNP2-like subgroup of transposases. Southern hybridization with genomic DNA from monocotyledonous and dicotyledonous plants demonstrates that the RIM2-coding sequence is unique to the Oryza genome. Our results demonstrate that the Rim2 elements from rice belong to a distinct superfamily of CACTA-like elements with evolutionary diversity. [ABSTRACT FROM AUTHOR]

Published
2003

18. The tomato genome sequence provides insights into fleshy fruit evolution

Author

Sato, Shusei, Tabata, Satoshi, Hirakawa, Hideki, Asamizu, Erika, Shirasawa, Kenta, Isobe, Sachiko, Kaneko, Takakazu, Nakamura, Yasukazu, Shibata, Daisuke, Aoki, Koh, Egholm, Michael, Knight, James, Bogden, Robert, Changbao, Shuang, Yang, Xun, Pan, Shengkai, Cheng, Shifeng, Liu, Xin, Ren, Yuanyuan, Wang, Jun, Albiero, Alessandro, Dal Pero, Francesca, Todesco, Sara, Van Eck, Joyce, Buels, Robert M., Bombarely, Aureliano, Gosselin, Joseph R., Huang, Minyun, Leto, Jonathan A., Menda, Naama, Strickler, Susan, Mao, Linyong, Gao, Shan, Tecle, Isaak Y., York, Thomas, Zheng, Vrebalov, Julia T., Lee, JeMin, Zhong, Silin, Mueller, Lukas A., Stiekema, Willem J., Ribeca, Paolo, Alioto, Tyler, Wencai, Sanwen, Yongchen, Zhang, Zhonghua, Jianchang, Guo, Yanmei, Xiaoxuan, Ying, Chuanyou, Zhukuan, Zuo, Jianru, Jianfeng, Zhao, Jiuhai, Yan, Liuhua, Jiang, Hongling, Bao, Hongshuang, Zhenjun, Fuyou, Chen, Bingtang, Han, Bin, Feng, Fan, Danlin, Ling, Hongqing, Xue, Yongbiao, Ware, Doreen, McCombie, W. Richard, Lippman, Zachary B., Chia, Jer-Ming, Pasternak, Shiran, Gelley, Laura, Kramer, Melissa, Anderson, Lorinda K., Chang, Song-Bin, Royer, Suzanne M., Shearer, Lindsay A., Stack, Stephen M., Rose, Jocelyn K. C., Yimin, Eannetta, Nancy, Matas, Antonio J., McQuinn, Ryan, Tanksley, Steven D., Camara, Francisco, Guigo, Roderic, Rombauts, Stephane, Fawcett, Jeffrey, Van de Peer, Yves, Zamir, Dani, Liang, Chunbo, Spannagl, Manuel, Gundlach, Heidrun, Bruggmann, Remy, Mayer, Klaus, Jia, Zhiqi, Junhong, Zhibiao, Bishop, Gerard J., Butcher, Sarah, Lopez-Cobollo, Rosa, Buchan, Daniel, Filippis, Ioannis, Abbott, Dixit, Rekha, Singh, Manju, Archana, Pal, Jitendra Kumar, Pandit, Awadhesh, Pradeep Kumar, Mahato, Ajay Kumar, Dogra, Vivek, Gaikwad, Kishor, Sharma, Tilak Raj, Mohapatra, Trilochan, Nagendra Kumar, Causse, Mathilde, Rothan, Christophe, Schiex, Noirot, Celine, Bellec, Arnaud, Klopp, Delalande, Corinne, Berges, Helene, Mariette, Jerome, Frasse, Pierre, Vautrin, Sonia, Zouine, Mohamed, Latche, Alain, Rousseau, Christine, Regad, Farid, Pech, Jean-Claude, Philippot, Murielle, Bouzayen, Mondher, Pericard, Osorio, Fernandez del Carmen, Asuncion, Monforte, Antonio, Granell, Fernandez-Munoz, Rafael, Conte, Mariana, Lichtenstein, Gabriel, Carrari, Fernando, De Bellis, Gianluca, Fuligni, Fabio, Peano, Clelia, Grandillo, Silvana, Termolino, Pasquale, Pietrella, Marco, Fantini, Elio, Falcone, Giulia, Fiore, Alessia, Giuliano, Giovanni, Lopez, Loredana, Facella, Perrotta, Gaetano, Daddiego, Loretta, Bryan, Glenn, Orozco, Modesto, Pastor, Xavier, Torrents, David, van Schriek, Keygene N. V. Marco G. M., Feron, Richard M. C., van Oeveren, Jan, de Heer, Peter, daPonte, Lorena, Jacobs-Oomen, Saskia, Cariaso, Mike, Prins, Marcel, van Eijk, Michiel J. T., Janssen, Antoine, van Haaren, Mark J. J., Sung-Hwan, Kim, Jungeun, Kwon, Suk-Yoon, Sangmi, Koo, Dal-Hoe, Sanghyeob, Hur, Cheol-Goo, Clouser, Christopher, Rico, Hallab, Asis, Gebhardt, Christiane, Klee, Kathrin, Joecker, Anika, Warfsmann, Jens, Goebel, Ulrike, Kawamura, Shingo, Yano, Kentaro, Sherman, Jamie D., Fukuoka, Hiroyuki, Negoro, Satomi, Bhutty, Sarita, Chowdhury, Parul, Chattopadhyay, Debasis, Datema, Erwin, Smit, Sandra, Schijlen, Eliog. W. M., van de Belt, Jose, van Haarst, Jan C., Peters, Sander A., van Staveren, Marjo J., Henkens, Marleen H. C., Mooyman, Paul J. W., Hesselink, Thamara, van Ham, Roeland C. H. J., Guoyong, Droege, Marcus, Choi, Doil, Kang, Byung-Cheol, Byung Dong, Park, Minkyu, Seungill, Yeom, Seon-In, Yong-Hwan, Yang-Do, Guangcun, Jianwei, Yongsheng, Shengxiong, Fernandez-Pedrosa, Victoria, Collado, Carmen, Zuniga, Sheila, Guoping, Cade, Rebecca, Dietrich, Robert A., Rogers, Jane, Knapp, Fei, Zhangjun, White, Ruth A., Thannhauser, Theodore W., Giovannoni, James J., Angel Botella, Miguel, Gilbert, Louise, Gonzalez, Ramon, Goicoechea, Jose Luis, Yeisoo, Kudrna, Collura, Kristi, Wissotski, Marina, Wing, Rod, Schoof, Heiko, Meyers, Blake C., Gurazada, Aishwarya Bala, Green, Pamela J., Mathur, Saloni, Vyas, Shailendra, Solanke, Amolkumar U., Kumar, Rahul, Gupta, Vikrant, Arun K., Khurana, Paramjit, Jitendra P., Tyagi, Akhilesh K., Dalmay, Tamas, Mohorianu, Irina, Walts, Brandon, Chamala, Srikar, Barbazuk, W. Brad, Jingping, Hui, Tae-Ho, Yupeng, Dong, Paterson, Andrew H., Xiyin, Tang, Haibao, Barone, Amalia, Chiusano, Maria Luisa, Ercolano, Maria Raffaella, D'Agostino, Nunzio, Di Filippo, Miriam, Traini, Alessandra, Sanseverino, Walter, Frusciante, Luigi, Seymour, Graham B., Elharam, Mounir, Hua, Axin, Kenton, Steven, Lewis, Jennifer, Lin, Shaoping, Najar, Fares, Lai, Hongshing, Qin, Baifang, Chunmei, Shi, Ruihua, Douglas, Xing, Yanbo, Keqin, Jing, Yao, Ziyun, Zhou, Liping, Roe, Bruce A., Vezzi, D'Angelo, Michela, Zimbello, Rosanna, Schiavon, Riccardo, Caniato, Elisa, Rigobello, Chiara, Campagna, Davide, Vitulo, Nicola, Valle, Giorgio, Nelson, David R., De Paoli, Emanuele, Szinay, Dora, de Jong, Hans H., Bai, Yuling, Visser, Richard G. F., Lankhorst, Rene M. Klein, Beasley, Helen, McLaren, Karen, Nicholson, Riddle, Claire, Gianese, Giulio, Tomato Genome Consortium, S., Sato, S., Tabata, H., Hirakawa, E., Asamizu, K., Shirasawa, S., Isobe, T., Kaneko, Y., Nakamura, D., Shibata, K., Aoki, M., Egholm, J., Knight, R., Bogden, C. B., Li, Y., Shuang, X., Xu, S. K., Pan, S. F., Cheng, X., Liu, Y. Y., Ren, J., Wang, A., Albiero, F. D., Pero, S., Todesco, J. V., Eck, R. M., Buel, A., Bombarely, J. R., Gosselin, M. Y., Huang, J. A., Leto, N., Menda, S., Strickler, L. Y., Mao, S., Gao, I. Y., Tecle, T., York, Y., Zheng, J. T., Vrebalov, J., Lee, S. L., Zhong, L. A., Mueller, W. J., Stiekema, P., Ribeca, T., Alioto, W. C., Yang, S. W., Huang, Y. C., Du, Z. H., Zhang, J. C., Gao, Y. M., Guo, X. X., Wang, Y., Li, J., He, C. Y., Li, Z. K., Cheng, J. R., Zuo, J. F., Ren, J. H., Zhao, L. H., Yan, H. L., Jiang, B., Wang, H. S., Li, Z. J., Li, F. Y., Fu, B. T., Chen, B., Han, Q., Feng, D. L., Fan, Y., Wang, H. Q., Ling, Y. B., A., D., Ware, W. R., Mccombie, Z. B., Lippman, J. M., Chia, K., Jiang, S., Pasternak, L., Gelley, M., Kramer, L. K., Anderson, S. B., Chang, S. M., Royer, L. A., Shearer, S. M., Stack, J. K., C., Y. M., Xu, N., Eannetta, A. J., Mata, R., Mcquinn, S. D., Tanksley, F., Camara, R., Guigo, S., Rombaut, J., Fawcett, Y. V., De, D., Zamir, C. B., Liang, M., Spannagl, H., Gundlach, R., Bruggmann, K., Mayer, Z. Q., Jia, J. H., Zhang, Z. B., A., G. J., Bishop, S., Butcher, R., Lopez Cobollo, D., Buchan, I., Filippi, J., Abbott, R., Dixit, M., Singh, A., Singh, J. K., Pal, A., Pandit, P. K., Singh, A. K., Mahato, V., Dogra, K., Gaikwad, T. R., Sharma, T., Mohapatra, N. K., Singh, M., Causse, C., Rothan, T., Schiex, C., Noirot, A., Bellec, C., Klopp, C., Delalande, H., Berge, J., Mariette, P., Frasse, S., Vautrin, M., Zouine, A., Latche, C., Rousseau, F., Regad, J. C., Pech, M., Philippot, M., Bouzayen, P., Pericard, S., Osorio, A. F., Del, A., Monforte, A., Granell, R., Fernandez Munoz, M., Conte, G., Lichtenstein, F., Carrari, G. D., Belli, F., Fuligni, C., Peano, S., Grandillo, P., Termolino, M., Pietrella, E., Fantini, G., Falcone, A., Fiore, G., Giuliano, L., Lopez, P., Facella, G., Perrotta, L., Daddiego, G., Bryan, M., Orozco, X., Pastor, D., Torrent, K. N. V., R. M. C., J. v., Oeveren, P. d., Heer, L., Daponte, S., Jacobs Oomen, M., Cariaso, M., Prin, M. J., T., A., Janssen, M. J., J., S. H., Jo, J., Kim, S. Y., Kwon, S., Kim, D. H., Koo, S., Lee, C. G., Hur, C., Clouser, A., Rico, A., Hallab, C., Gebhardt, K., Klee, A., Jocker, J., Warfsmann, U., Gobel, S., Kawamura, K., Yano, J. D., Sherman, H., Fukuoka, S., Negoro, S., Bhutty, P., Chowdhury, D., Chattopadhyay, E., Datema, S., Smit, E. W., M., J. v., De, J. C., Van, S. A., Peter, M. J., Van, M. H. C., P. J. W., T., Hesselink, R. C., H., G. Y., Jiang, M., Droege, D., Choi, B. C., Kang, B. D., Kim, M., Park, S. I., Yeom, Y. H., Lee, Y. D., Choi, G. C., Li, J. W., Gao, Y. S., Liu, S. X., Huang, V., Fernandez Pedrosa, C., Collado, S., Zuniga, G. P., Wang, R., Cade, R. A., Dietrich, J., Roger, S., Knapp, Z. J., Fei, R. A., White, T. W., Thannhauser, J. J., Giovannoni, M. A., Botella, L., Gilbert, R., Gonzalez, J. L., Goicoechea, Y., Yu, D., Kudrna, K., Collura, M., Wissotski, R., Wing, H., Schoof, B. C., Meyer, A. B., Gurazada, P. J., Green, S., Mathur, S., Vya, A. U., Solanke, R., Kumar, V., Gupta, A. K., Sharma, P., Khurana, J. P., Khurana, A. K., Tyagi, T., Dalmay, I., Mohorianu, B., Walt, S., Chamala, W. B., Barbazuk, J. P., Li, H., Guo, T. H., Lee, Y. P., Wang, D., Zhang, A. H., Paterson, X. Y., Wang, H. B., Tang, Barone, Amalia, Chiusano, MARIA LUISA, Ercolano, MARIA RAFFAELLA, D'Agostino, Nunzio, M. D., Filippo, A., Traini, W., Sanseverino, Frusciante, Luigi, G. B., Seymour, M., Elharam, Y., Fu, A., Hua, S., Kenton, J., Lewi, S. P., Lin, F., Najar, H. S., Lai, B. F., Qin, C. M., Qu, R. H., Shi, D., White, J., White, Y. B., Xing, K. Q., Yang, J., Yi, Z. Y., Yao, L. P., Zhou, B. A., Roe, A., Vezzi, M., D'Angelo, R., Zimbello, R., Schiavon, E., Caniato, C., Rigobello, D., Campagna, N., Vitulo, G., Valle, D. R., Nelson, E. D., Paoli, D., Szinay, H. H., De, Y. L., Bai, R. G. F., R. M. K., H., Beasley, K., Mclaren, C., Nicholson, C., Riddle, G., Gianese, Kazusa DNA Research Institute (KDRI), 454 Life Sciences, Amplicon Express Inc., Beijing Academy of Agriculture and Forestry Sciences, Chinese Academy of Sciences (CAS), Beijing Genomics Institute [Shenzhen] (BGI), BMR Genomics S.R.L., Partenaires INRAE, Boyce Thompson Inst Plant Res, Cornell University [New York], Centre for Biosystems Genomics, CNAG-CRG, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), 08028 Barcelona, Spain, China Agricultural University (CAU), Chinese Academy of Agricultural Sciences (CAAS), Inst Genet & Dev Biol, State Key Lab Plant Cell & Chromosome Engn, Chinese Academy of Sciences [Beijing] (CAS), Cold Spring Harbor, Cold Spring Harbor Laboratory, Colorado State University [Fort Collins] (CSU), National Taiwan University, Génétique et Amélioration des Fruits et Légumes (GAFL), Institut National de la Recherche Agronomique (INRA), Biologie du fruit et pathologie (BFP), Université Bordeaux Segalen - Bordeaux 2-Institut National de la Recherche Agronomique (INRA)-Université Sciences et Technologies - Bordeaux 1, Unité de Biométrie et Intelligence Artificielle (UBIA), Centre National de Ressources Génomiques Végétales (CNRGV), This work was supported by: Argentina: INTA and CONICET. Belgium: Flemish Institute for Biotechnology and Ghent University. China: The State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Ministry of Science and Technology (2006AA10A116, 2004CB720405, 2006CB101907, 2007DFB30080) Ministry of Agriculture (‘948’ Program: 2007-Z5), National Natural Science Foundation (36171319), Postdoctoral Science Foundation (20070420446). European Union: FP6 Integrated Project EU-SOL PL 016214. France: Institute National de la Recherche Agronomique and Agence Nationale de la Recherche. Germany: the Max Planck Society. India: Department of Biotechnology, Government of India, Indian Council of Agricultural Research. Italy: Ministry of Research (FIRB-SOL, FIRB-Parallelomics, ItaLyco and GenoPOM projects), Ministry of Agriculture (Agronanotech and Biomassval projects), FILAS foundation, ENEA, CNR-ENEA project L. 191/2009. Japan: Kazusa DNA Research Institute Foundation and National Institute of Vegetable and Tea Science. Korea: KRIBB Basic Research Fund and Crop Functional Genomics Research Center (CFGC), MEST. Netherlands: Centre for BioSystems Genomics, Netherlands Organization for Scientific Research. Spain: Fundación Genoma España, Cajamar, FEPEX, Fundación Séneca, ICIA, IFAPA, Fundación Manrique de Lara, Instituto Nacional de Bioinformatica. UK: BBSRC grant BB/C509731/1, DEFRA, SEERAD. USA: NSF (DBI-0116076, DBI-0421634, DBI-0606595, IOS-0923312, DBI-0820612, DBI-0605659, DEB-0316614, DBI 0849896 and MCB 1021718), USDA (2007-02773 and 2007-35300-19739), USDA-ARS. We acknowledge the Potato Genome Sequencing Consortium for sharing data before publication, potato RNA-Seq data was provided by C. R. Buell from the NSF-funded Potato Genome Sequence and Annotation project, tomato RNA-Seq data by the USDA-funded SolCAP project, N. Sinha and J. Maloof, the Amplicon Express team for BAC pooling services, construction of the Whole Genome Profiling (WGP) physical map was supported by EnzaZaden, RijkZwaan, Vilmorin & Cie, and Takii & Co. Keygene N.V. owns patents and patent applications covering its AFLP and Whole Genome Profiling technologies, AFLP and Keygene are registered trademarks of Keygene N.V. The following individuals are also acknowledged for their contribution to the work described: J. Park, B. Wang, C. Niu, D. Liu, F. Cojutti, S. Pescarolo, A. Zambon, G. Xiao, J. Chen, J. Shi, L. Zhang, L. Zeng, M. Caccamo, D. Bolser, D. Martin, M. Gonzalez, P. A. Bedinger, P. A. Covey, P. Pachori, R. R. Pousada, S. Hakim, S. Sims, V. Cahais, W. Long, X. Zhou, Y. Lu, W. Haso, C. Lai, S. Lepp, C. Peluso, H. Teramu, H. De Jong, R. Lizarralde, E. R. May and Z. Li. M. Zabeau is thanked for his support and encouragement and S. van den Brink for her secretarial support., Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Institut National de la Recherche Agronomique - INRA (FRANCE), Université de Bordeaux 1 (FRANCE), Université de Bordeaux 2 - Victor Segalen (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), and Universitat de Barcelona

Subjects
0106 biological sciences, [SDV]Life Sciences [q-bio], Laboratory of Virology, tomato, 01 natural sciences, Genome, Laboratorium voor Plantenveredeling, Arabidopsis, Genetic Variation, Genome, Plant, Genomics, Lycopersicon esculentum, Molecular Sequence Data, Phylogeny, RNA, Plant, Sequence Analysis, DNA, Solanum tuberosum, Soybeans, Synteny, Evolution, Molecular, Solanum lycopersicum, Génétique des plantes, Tomàquets, Wild tomato, Genome Sequencing, Lycopersicon-esculentum, gene, diversification : arabidopsis, patterns, ortholog, history, sorghum, potato, ComputingMilieux_MISCELLANEOUS, 2. Zero hunger, 0303 health sciences, Multidisciplinary, Solanum chilense, biology, EPS-4, BioSolar Cells, food and beverages, Solanum pimpinellifolium, BIOS Applied Metabolic Systems, Neofunctionalization, Laboratory of Genetics, Sequence Analysis, diversification, Génomique, Transcriptomique et Protéomique, Evolution, Bioinformatics, Laboratorium voor Erfelijkheidsleer, Article, Genètica molecular, Laboratorium voor Virologie, 03 medical and health sciences, BIOS Applied Bioinformatics, Tomatoes, Botany, Bioinformatica, Genetics, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology, Genomes, Laboratorium voor Nematologie, lycopersicon-esculentum, 030304 developmental biology, fungi, Molecular, Plant, DNA, Genètica evolutiva, 15. Life on land, biology.organism_classification, Tomato genome, Plant Breeding, arabidopsis, Genòmica, RNA, Solanum, Laboratory of Nematology, Plant sciences, 010606 plant biology & botany
Abstract

[EN] Tomato (Solanum lycopersicum) is a major crop plant and a model system for fruit development. Solanum is one of the largest angiosperm genera(1) and includes annual and perennial plants from diverse habitats. Here we present a high-quality genome sequence of domesticated tomato, a draft sequence of its closest wild relative, Solanum pimpinellifolium(2), and compare them to each other and to the potato genome (Solanum tuberosum). The two tomato genomes show only 0.6% nucleotide divergence and signs of recent admixture, but show more than 8% divergence from potato, with nine large and several smaller inversions. In contrast to Arabidopsis, but similar to soybean, tomato and potato small RNAs map predominantly to gene-rich chromosomal regions, including gene promoters. The Solanum lineage has experienced two consecutive genome triplications: one that is ancient and shared with rosids, and a more recent one. These triplications set the stage for the neofunctionalization of genes controlling fruit characteristics, such as colour and fleshiness., This work was supported by: Argentina: INTA and CONICET. Belgium: Flemish Institute for Biotechnology and Ghent University. China: The State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences; Ministry of Science and Technology (2006AA10A116, 2004CB720405, 2006CB101907, 2007DFB30080) Ministry of Agriculture ('948' Program: 2007-Z5); National Natural Science Foundation (36171319); Postdoctoral Science Foundation (20070420446). European Union: FP6 Integrated Project EU-SOL PL 016214. France: Institute National de la Recherche Agronomique and Agence Nationale de la Recherche. Germany: the Max Planck Society. India: Department of Biotechnology, Government of India; Indian Council of Agricultural Research. Italy: Ministry of Research (FIRB-SOL, FIRB-Parallelomics, ItaLyco and GenoPOM projects); Ministry of Agriculture (Agronanotech and Biomassval projects); FILAS foundation; ENEA; CNR-ENEA project L. 191/2009. Japan: Kazusa DNA Research Institute Foundation and National Institute of Vegetable and Tea Science. Korea: KRIBB Basic Research Fund and Crop Functional Genomics Research Center (CFGC), MEST. Netherlands: Centre for BioSystemsGenomics, Netherlands Organization for Scientific Research. Spain: Fundacion Genoma Espana; Cajamar; FEPEX; Fundacion Seneca; ICIA; IFAPA; Fundacion Manrique de Lara; Instituto Nacional de Bioinformatica. UK: BBSRC grant BB/C509731/1; DEFRA; SEERAD. USA: NSF (DBI-0116076; DBI-0421634; DBI-0606595; IOS-0923312; DBI-0820612; DBI-0605659; DEB-0316614; DBI 0849896 and MCB 1021718); USDA (2007-02773 and 2007-35300-19739); USDA-ARS. We acknowledge the Potato Genome Sequencing Consortium for sharing data before publication; potato RNA-Seq data was provided by C. R. Buell from the NSF-funded Potato Genome Sequence and Annotation project; tomato RNA-Seq data by the USDA-funded SolCAP project, N. Sinha and J. Maloof; the Amplicon Express team for BAC pooling services; construction of the Whole Genome Profiling (WGP) physical map was supported by EnzaZaden, RijkZwaan, Vilmorin&Cie, and Takii & Co. Keygene N. V. owns patents and patent applications covering its AFLP and Whole Genome Profiling technologies; AFLP and Keygene are registered trademarks of Keygene N. V.

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