J. K. Leung - Daya Bay Collaboration

J. K. Leung
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J. K. Leung
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Daya Bay Collaboration
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High Energy Physics - Experiment (26)
 
Physics - Instrumentation and Detectors (12)
 
Nuclear Experiment (7)
 
High Energy Physics - Phenomenology (3)
 
Quantitative Biology - Tissues and Organs (2)
 
Statistics - Theory (1)
 
Mathematics - Statistics (1)
 
Computer Science - Performance (1)
 
Physics - Optics (1)
 
Computer Science - Networking and Internet Architecture (1)
 
General Relativity and Quantum Cosmology (1)
 
Quantitative Biology - Other (1)
 
Cosmology and Nongalactic Astrophysics (1)
 
High Energy Physics - Theory (1)
 
Physics - Medical Physics (1)
 
Computer Science - Computer Vision and Pattern Recognition (1)

Publications Authored By J. K. Leung

2017Apr
Authors: F. P. An, A. B. Balantekin, H. R. Band, M. Bishai, S. Blyth, D. Cao, G. F. Cao, J. Cao, Y. L. Chan, J. F. Chang, Y. Chang, H. S. Chen, Q. Y. Chen, S. M. Chen, Y. X. Chen, Y. Chen, J. Cheng, Z. K. Cheng, J. J. Cherwinka, M. C. Chu, A. Chukanov, J. P. Cummings, Y. Y. Ding, M. V. Diwan, M. Dolgareva, J. Dove, D. A. Dwyer, W. R. Edwards, R. Gill, M. Gonchar, G. H. Gong, H. Gong, M. Grassi, W. Q. Gu, 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. B. Hsiung, B. Z. Hu, T. Hu, E. C. Huang, H. X. Huang, X. T. Huang, Y. B. Huang, P. Huber, W. Huo, G. Hussain, D. E. Jaffe, K. L. Jen, X. P. Ji, X. L. Ji, J. B. Jiao, R. A. Johnson, D. Jones, L. Kang, S. H. Kettell, A. Khan, S. Kohn, M. Kramer, K. K. Kwan, M. W. Kwok, T. J. Langford, K. Lau, L. Lebanowski, J. Lee, J. H. C. Lee, R. T. Lei, R. Leitner, J. K. C. Leung, C. Li, D. J. Li, F. Li, G. S. Li, Q. J. 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, S. K. Lin, Y. -C. Lin, J. J. Ling, J. M. Link, L. Littenberg, B. R. Littlejohn, J. L. Liu, J. C. Liu, C. W. Loh, C. Lu, H. Q. Lu, J. S. Lu, K. B. Luk, X. Y. Ma, X. B. Ma, Y. Q. Ma, Y. Malyshkin, D. A. Martinez Caicedo, K. T. McDonald, R. D. McKeown, I. Mitchell, Y. Nakajima, J. Napolitano, D. Naumov, E. Naumova, H. Y. Ngai, 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, R. M. Qiu, N. Raper, J. Ren, R. Rosero, B. Roskovec, X. C. Ruan, H. Steiner, P. Stoler, J. L. Sun, W. Tang, D. Taychenachev, K. Treskov, K. V. Tsang, C. E. Tull, N. Viaux, B. Viren, V. Vorobel, C. H. Wang, M. Wang, N. Y. Wang, R. G. Wang, W. Wang, X. Wang, Y. F. Wang, Z. Wang, Z. Wang, Z. M. Wang, H. Y. Wei, L. J. Wen, K. Whisnant, C. G. White, L. Whitehead, T. Wise, H. L. H. Wong, S. C. F. Wong, E. Worcester, C. -H. Wu, Q. Wu, W. J. Wu, D. M. Xia, J. K. Xia, Z. Z. Xing, J. L. Xu, Y. Xu, T. Xue, C. G. Yang, H. Yang, L. Yang, M. S. Yang, M. T. Yang, Y. Z. Yang, M. Ye, Z. Ye, M. Yeh, B. L. Young, Z. Y. Yu, S. Zeng, L. Zhan, C. Zhang, C. C. Zhang, H. H. Zhang, J. W. Zhang, Q. M. Zhang, R. Zhang, X. T. Zhang, Y. M. Zhang, Y. X. Zhang, Y. M. Zhang, Z. J. Zhang, Z. Y. Zhang, Z. P. Zhang, J. Zhao, L. Zhou, H. L. Zhuang, J. H. Zou

The Daya Bay experiment has observed correlations between reactor core fuel evolution and changes in the reactor antineutrino flux and energy spectrum. Four antineutrino detectors in two experimental halls were used to identify 2.2 million inverse beta decays (IBDs) over 1230 days spanning multiple fuel cycles for each of six 2. Read More

Bonner Spheres have been used widely for the measurement of neutron spectra with neutron energies ranged from thermal up to at least 20 MeV. A Bonner Sphere neutron spectrometer (BSS) was developed by extending a Berthold LB 6411 neutron-dose-rate meter. The BSS consists of a $^{3}$He thermal-neutron detector with integrated electronics, a set of eight polyethylene spherical shells and two optional lead shells of various sizes. Read More

Introduction: This study evaluated algorithm-based qualitative (ABQ) method for vertebral fracture (VF) evaluation with reference to semi-quantitative (SQ) method and bone mineral density (BMD) measurement. Methods: Mr. OS (Hong Kong) and Ms. Read More

The epidemiology of lumbar degenerative spondylolisthesis (DS) remains controversial. We performed a systemic review with the aim to have a better understanding of DS's prevalence in general population. The results showed the prevalence of DS is very gender specific and age specific. Read More

2016Oct
Authors: Daya Bay Collaboration, F. P. An, A. B. Balantekin, H. R. Band, M. Bishai, S. Blyth, D. Cao, G. F. Cao, J. Cao, W. R. Cen, Y. L. Chan, J. F. Chang, L. C. Chang, Y. Chang, H. S. Chen, Q. Y. Chen, S. M. Chen, Y. X. Chen, Y. Chen, J. -H. Cheng, J. Cheng, Y. P. Cheng, Z. K. Cheng, J. J. Cherwinka, M. C. Chu, A. Chukanov, J. P. Cummings, J. de Arcos, Z. Y. Deng, X. F. Ding, Y. Y. Ding, M. V. Diwan, M. Dolgareva, J. Dove, D. A. Dwyer, W. R. Edwards, R. Gill, M. Gonchar, G. H. Gong, H. Gong, M. Grassi, W. Q. Gu, M. Y. Guan, L. Guo, X. H. Guo, Z. Guo, R. W. Hackenburg, R. Han, S. Hans, M. He, K. M. Heeger, Y. K. Heng, A. Higuera, Y. K. Hor, Y. B. Hsiung, B. Z. Hu, T. Hu, W. Hu, E. C. Huang, H. X. Huang, X. T. Huang, P. Huber, W. Huo, G. Hussain, D. E. Jaffe, P. Jaffke, K. L. Jen, S. Jetter, X. P. Ji, X. L. Ji, J. B. Jiao, R. A. Johnson, D. Jones, J. Joshi, L. Kang, S. H. Kettell, S. Kohn, M. Kramer, K. K. Kwan, M. W. Kwok, T. Kwok, T. J. Langford, K. Lau, L. Lebanowski, J. Lee, J. H. C. Lee, R. T. Lei, R. Leitner, J. K. C. Leung, C. Li, D. J. Li, F. Li, G. S. Li, Q. J. Li, S. Li, S. C. Li, W. D. Li, X. N. Li, Y. F. Li, Z. B. Li, H. Liang, C. J. Lin, G. L. Lin, S. Lin, S. K. Lin, Y. -C. Lin, J. J. Ling, J. M. Link, L. Littenberg, B. R. Littlejohn, D. W. Liu, J. L. Liu, J. C. Liu, C. W. Loh, C. Lu, H. Q. Lu, J. S. Lu, K. B. Luk, Z. Lv, Q. M. Ma, X. Y. Ma, X. B. Ma, Y. Q. Ma, Y. Malyshkin, D. A. Martinez Caicedo, K. T. McDonald, R. D. McKeown, I. Mitchell, M. Mooney, Y. Nakajima, J. Napolitano, D. Naumov, E. Naumova, H. Y. Ngai, Z. Ning, 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, G. X. Sun, J. L. Sun, W. Tang, D. Taychenachev, K. Treskov, K. V. Tsang, C. E. Tull, N. Viaux, B. Viren, V. Vorobel, C. H. Wang, M. Wang, N. Y. Wang, R. G. Wang, W. Wang, X. Wang, Y. F. Wang, Z. Wang, Z. Wang, Z. M. Wang, H. Y. Wei, L. J. Wen, K. Whisnant, C. G. White, L. Whitehead, T. Wise, H. L. H. Wong, S. C. F. Wong, E. Worcester, C. -H. Wu, Q. Wu, W. J. Wu, D. M. Xia, J. K. Xia, Z. Z. Xing, J. Y. Xu, J. L. Xu, Y. Xu, T. Xue, C. G. Yang, H. Yang, L. Yang, M. S. Yang, M. T. Yang, M. Ye, Z. Ye, M. Yeh, B. L. Young, Z. Y. Yu, S. Zeng, L. Zhan, C. Zhang, H. H. Zhang, J. W. Zhang, Q. M. Zhang, X. T. Zhang, Y. M. Zhang, Y. X. Zhang, Y. M. Zhang, Z. J. Zhang, Z. Y. Zhang, Z. P. Zhang, J. Zhao, Q. W. Zhao, Y. B. Zhao, W. L. Zhong, L. Zhou, N. Zhou, H. L. Zhuang, J. H. Zou

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. Read More

2016Aug
Authors: F. P. An, A. B. Balantekin, H. R. Band, M. Bishai, S. Blyth, D. Cao, G. F. Cao, J. Cao, W. R. Cen, Y. L. Chan, J. F. Chang, L. C. Chang, Y. Chang, H. S. Chen, Q. Y. Chen, S. M. Chen, Y. X. Chen, Y. Chen, J. -H. Cheng, J. Cheng, Y. P. Cheng, Z. K. Cheng, J. J. Cherwinka, M. C. Chu, A. Chukanov, J. P. Cummings, J. de Arcos, Z. Y. Deng, X. F. Ding, Y. Y. Ding, M. V. Diwan, M. Dolgareva, J. Dove, D. A. Dwyer, W. R. Edwards, R. Gill, M. Gonchar, G. H. Gong, H. Gong, M. Grassi, W. Q. Gu, M. Y. Guan, L. Guo, X. H. Guo, Z. Guo, R. W. Hackenburg, R. Han, S. Hans, M. He, K. M. Heeger, Y. K. Heng, A. Higuera, Y. K. Hor, Y. B. Hsiung, B. Z. Hu, T. Hu, W. Hu, E. C. Huang, H. X. Huang, X. T. Huang, P. Huber, W. Huo, G. Hussain, D. E. Jaffe, P. Jaffke, K. L. Jen, S. Jetter, X. P. Ji, X. L. Ji, J. B. Jiao, R. A. Johnson, J. Joshi, L. Kang, S. H. Kettell, S. Kohn, M. Kramer, K. K. Kwan, M. W. Kwok, T. Kwok, T. J. Langford, K. Lau, L. Lebanowski, J. Lee, J. H. C. Lee, R. T. Lei, R. Leitner, J. K. C. Leung, C. Li, D. J. Li, F. Li, G. S. Li, Q. J. Li, S. Li, S. C. Li, W. D. Li, X. N. Li, Y. F. Li, Z. B. Li, H. Liang, C. J. Lin, G. L. Lin, S. Lin, S. K. Lin, Y. -C. Lin, J. J. Ling, J. M. Link, L. Littenberg, B. R. Littlejohn, D. W. Liu, J. L. Liu, J. C. Liu, C. W. Loh, C. Lu, H. Q. Lu, J. S. Lu, K. B. Luk, Z. Lv, Q. M. Ma, X. Y. Ma, X. B. Ma, Y. Q. Ma, Y. Malyshkin, D. A. Martinez Caicedo, R. D. McKeown, I. Mitchell, M. Mooney, Y. Nakajima, J. Napolitano, D. Naumov, E. Naumova, H. Y. Ngai, Z. Ning, 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, G. X. Sun, J. L. Sun, W. Tang, D. Taychenachev, K. Treskov, K. V. Tsang, C. E. Tull, N. Viaux, B. Viren, V. Vorobel, C. H. Wang, M. Wang, N. Y. Wang, R. G. Wang, W. Wang, X. Wang, Y. F. Wang, Z. Wang, Z. Wang, Z. M. Wang, H. Y. Wei, L. J. Wen, K. Whisnant, C. G. White, L. Whitehead, T. Wise, H. L. H. Wong, S. C. F. Wong, E. Worcester, C. -H. Wu, Q. Wu, W. J. Wu, D. M. Xia, J. K. Xia, Z. Z. Xing, J. Y. Xu, J. L. Xu, Y. Xu, T. Xue, C. G. Yang, H. Yang, L. Yang, M. S. Yang, M. T. Yang, M. Ye, Z. Ye, M. Yeh, B. L. Young, Z. Y. Yu, S. Zeng, L. Zhan, C. Zhang, H. H. Zhang, J. W. Zhang, Q. M. Zhang, X. T. Zhang, Y. M. Zhang, Y. X. Zhang, Y. M. Zhang, Z. J. Zhang, Z. Y. Zhang, Z. P. Zhang, J. Zhao, Q. W. Zhao, Y. B. Zhao, W. L. Zhong, L. Zhou, N. Zhou, H. L. Zhuang, J. H. Zou

The disappearance of reactor $\bar{\nu}_e$ observed by the Daya Bay experiment is examined in the framework of a model in which the neutrino is described by a wave packet with a relative intrinsic momentum dispersion $\sigma_\text{rel}$. Three pairs of nuclear reactors and eight antineutrino detectors, each with good energy resolution, distributed among three experimental halls, supply a high-statistics sample of $\bar{\nu}_e$ acquired at nine different baselines. This provides a unique platform to test the effects which arise from the wave packet treatment of neutrino oscillation. Read More

2016Jul
Authors: The Daya Bay collaboration, F. P. An, A. B. Balantekin, H. R. Band, M. Bishai, S. Blyth, D. Cao, G. F. Cao, J. Cao, W. R. Cen, Y. L. Chan, J. F. Chang, L. C. Chang, Y. Chang, H. S. Chen, Q. Y. Chen, S. M. Chen, Y. X. Chen, Y. Chen, J. -H. Cheng, J. Cheng, Y. P. Cheng, Z. K. Cheng, J. J. Cherwinka, M. C. Chu, A. Chukanov, J. P. Cummings, J. de Arcos, Z. Y. Deng, X. F. Ding, Y. Y. Ding, M. V. Diwan, M. Dolgareva, J. Dove, D. A. Dwyer, W. R. Edwards, R. Gill, M. Gonchar, G. H. Gong, H. Gong, M. Grassi, W. Q. Gu, M. Y. Guan, L. Guo, R. P. Guo, X. H. Guo, Z. Guo, R. W. Hackenburg, R. Han, S. Hans, M. He, K. M. Heeger, Y. K. Heng, A. Higuera, Y. K. Hor, Y. B. Hsiung, B. Z. Hu, T. Hu, W. Hu, E. C. Huang, H. X. Huang, X. T. Huang, P. Huber, W. Huo, G. Hussain, D. E. Jaffe, P. Jaffke, K. L. Jen, S. Jetter, X. P. Ji, X. L. Ji, J. B. Jiao, R. A. Johnson, J. Joshi, L. Kang, S. H. Kettell, S. Kohn, M. Kramer, K. K. Kwan, M. W. Kwok, T. Kwok, T. J. Langford, K. Lau, L. Lebanowski, J. Lee, J. H. C. Lee, R. T. Lei, R. Leitner, J. K. C. Leung, C. Li, D. J. Li, F. Li, G. S. Li, Q. J. Li, S. Li, S. C. Li, W. D. Li, X. N. Li, Y. F. Li, Z. B. Li, H. Liang, C. J. Lin, G. L. Lin, S. Lin, S. K. Lin, Y. -C. Lin, J. J. Ling, J. M. Link, L. Littenberg, B. R. Littlejohn, D. W. Liu, J. L. Liu, J. C. Liu, C. W. Loh, C. Lu, H. Q. Lu, J. S. Lu, K. B. Luk, Z. Lv, Q. M. Ma, X. Y. Ma, X. B. Ma, Y. Q. Ma, Y. Malyshkin, D. A. Martinez Caicedo, K. T. McDonald, R. D. McKeown, I. Mitchell, M. Mooney, Y. Nakajima, J. Napolitano, D. Naumov, E. Naumova, H. Y. Ngai, Z. Ning, 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, G. X. Sun, J. L. Sun, W. Tang, D. Taychenachev, K. Treskov, K. V. Tsang, C. E. Tull, N. Viaux, B. Viren, V. Vorobel, C. H. Wang, M. Wang, N. Y. Wang, R. G. Wang, W. Wang, X. Wang, Y. F. Wang, Z. Wang, Z. Wang, Z. M. Wang, H. Y. Wei, L. J. Wen, K. Whisnant, C. G. White, L. Whitehead, T. Wise, H. L. H. Wong, S. C. F. Wong, E. Worcester, C. -H. Wu, Q. Wu, W. J. Wu, D. M. Xia, J. K. Xia, Z. Z. Xing, J. Y. Xu, J. L. Xu, Y. Xu, T. Xue, C. G. Yang, H. Yang, L. Yang, M. S. Yang, M. T. Yang, M. Ye, Z. Ye, M. Yeh, B. L. Young, Z. Y. Yu, S. Zeng, L. Zhan, C. Zhang, H. H. Zhang, J. W. Zhang, Q. M. Zhang, X. T. Zhang, Y. M. Zhang, Y. X. Zhang, Y. M. Zhang, Z. J. Zhang, Z. Y. Zhang, Z. P. Zhang, J. Zhao, Q. W. Zhao, Y. B. Zhao, W. L. Zhong, L. Zhou, N. Zhou, H. L. Zhuang, J. H. Zou

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. Read More

2016Jul
Authors: Daya Bay, MINOS Collaborations, :, P. Adamson, F. P. An, I. Anghel, A. Aurisano, A. B. Balantekin, H. R. Band, G. Barr, M. Bishai, A. Blake, S. Blyth G. J. Bock, D. Bogert, D. Cao, G. F. Cao, J. Cao, S. V. Cao, T. J. Carroll, C. M. Castromonte, W. R. Cen, Y. L. Chan, J. F. Chang, L. C. Chang, Y. Chang, H. S. Chen, Q. Y. Chen, R. Chen, S. M. Chen, Y. Chen, Y. X. Chen, J. Cheng, J. -H. Cheng, Y. P. Chen, Z. K. Cheng, J. J. Cherwinka, S. Childress, M. C. Chu, A. Chukanov, J. A. B. Coelho, L. Corwin, D. Cronin-Hennessy, J. P. Cummings, J. de Arcos, S. De Rijck, Z. Y. Deng, A. V. Devan, N. E. Devenish, X. F. Ding, Y. Y. Ding, M. V. Diwan, M. Dolgareva, J. Dove, D. A. Dwyer, W. R. Edwards, C. O. Escobar, J. J. Evans, E. Falk, G. J. Feldman, W. Flanagan, M. V. Frohne, M. Gabrielyan, H. R. Gallagher, S. Germani, R. Gill, R. A. Gomes, M. Gonchar, G. H. Gong, H. Gong, M. C. Goodman, P. Gouffon, N. Graf, R. Gran, M. Grassi, K. Grzelak, W. Q. Gu, M. Y. Guan, L. Guo, R. P. Guo, X. H. Guo, Z. Guo, A. Habig, R. W. Hackenburg, S. R. Hahn, R. Han, S. Hans, J. Hartnell, R. Hatcher, M. He, K. M. Heeger, Y. K. Heng, A. Higuera, A. Holin, Y. K. Hor, Y. B. Hsiung, B. Z. Hu, T. Hu, W. Hu, E. C. Huang, H. X. Huang, J. Huang, X. T. Huang, P. Huber, W. Huo, G. Hussain, J. Hylen, G. M. Irwin, Z. Isvan, D. E. Jaffe, P. Jaffke, C. James, K. L. Jen, D. Jensen, S. Jetter, X. L. Ji, X. P. Ji, J. B. Jiao, R. A. Johnson, J. K. de Jong, J. Joshi, T. Kafka, L. Kang, S. M. S. Kasahara, S. H. Kettell, S. Kohn, G. Koizumi, M. Kordosky, M. Kramer, A. Kreymer, 1 K. K. Kwan, M. W. Kwok, T. Kwok, K. Lang, T. J. Langford, K. Lau, L. Lebanowski, J. Lee, J. H. C. Lee, R. T. Lei, R. Leitner, J. K. C. Leung, C. Li, D. J. Li, F. Li, G. S. Li, Q. J. Li, S. Li, S. C. Li, W. D. Li, X. N. Li, Y. F. Li, Z. B. Li, H. Liang, C. J. Lin, G. L. Lin, S. Lin, S. K. Lin, Y. -C. Lin, J. J. Ling J. M. Link, P. J. Litchfield, L. Littenberg, B. R. Littlejohn, D. W. Liu, J. C. Liu, J. L. Liu, C. W. Loh, C. Lu, H. Q. Lu, J. S. Lu, P. Lucas, K. B. Luk, Z. Lv, Q. M. Ma, X. B. Ma, X. Y. Ma, Y. Q. Ma, Y. Malyshkin, W. A. Mann, M. L. Marshak, D. A. Martinez Caicedo, N. Mayer, K. T. McDonald, C. McGivern, R. D. McKeown, M. M. Medeiros, R. Mehdiyev, J. R. Meier, M. D. Messier, W. H. Miller, S. R. Mishra, I. Mitchell, M. Mooney, C. D. Moore, L. Mualem, J. Musser, Y. Nakajima, D. Naples, J. Napolitano, D. Naumov, E. Naumova, J. K. Nelson, H. B. Newman, H. Y. Ngai, R. J. Nichol, Z. Ning, A. Nowak, J. O'Connor, J. P. Ochoa-Ricoux, A. Olshevskiy, M. Orchanian, R., R. B. Pahlka, J. Paley, H. -R. Pan, J. Park, R. B. Patterson, S. Patton, G. Pawloski, V. Pec, J. C. Peng, A. Perch, M. M. Pfutzner, D. D. Phan, S. Phan-Budd, L. Pinsky, R. K. Plunkett, N. Poonthottathil, C. S. J. Pun, F. Z. Qi, M. Qi, X. Qian, X. Qiu, A. Radovic, N. Raper, B. Rebel, J. Ren, C. Rosenfeld, R. Rosero, B. Roskovec, X. C. Ruan, H. A. Rubin, P. Sail, M. C. Sanchez, J. Schneps, A. Schreckenberger, P. Schreiner, R. Sharma, S. Moed Sher, A. Sousa, H. Steiner, G. X. Sun, J. L. Sun, N. Tagg, R. L. Talaga, W. Tang, D. Taychenachev, J. Thomas, M. A. Thomson, X. Tian A. Timmons, J. Todd, S. C. Tognini, R. Toner, D. Torretta, K. Treskov, K. V. Tsang, C. E. Tull, G. Tzanakos, J. Urheim, P. Vahle, N. Viaux, B. Viren, V. Vorobel, C. H. Wang, M. Wang, N. Y. Wang, R. G. Wang, W. Wang, X. Wang, Y. F. Wang, Z. Wang, Z. M. Wang, R. C. Webb, A. Weber, H. Y. Wei, L. J. Wen, K. Whisnant, C. White, L. Whitehead L. H. Whitehead, T. Wise, S. G. Wojcicki, H. L. H. Wong, S. C. F. Wong, E. Worcester, C. -H. Wu, Q. Wu, W. J. Wu, D. M. Xia, J. K. Xia, Z. Z. Xing, J. L. Xu, J. Y. Xu, Y. Xu, T. Xue, C. G. Yang, H. Yang, L. Yang, M. S. Yang, M. T. Yang, M. Ye., Z. Ye, M. Yeh, B. L. Young, Z. Y. Yu, S. Zeng, L. ZhanC. Zhang, H. H. Zhang, J. W. Zhang, Q. M. Zhang, X. T. Zhang, Y. M. Zhang, Y. X. Zhang, Z. J. Zhang, Z. P. Zhang, Z. Y. Zhang, J. Zhao, Q. W. Zhao, Y. B. Zhao, W. L. Zhong, L. Zhou, N. Zhou, H. L. Zhuang, J. H. Zou

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. Read More

We use effective field theory (EFT) formalism to forecast the constraint on Horndeski class of dark energy models with future supernova and galaxy surveys. Previously (Gleyzes {\it et al.}) computed unmarginalized constraints (68\% CL error $\sim 10^{-3}$--$10^{-2}$) on EFT dark energy parameters by fixing all other parameters. Read More

Cardiovascular monitoring is important to prevent diseases from progressing. The jugular venous pulse (JVP) waveform offers important clinical information about cardiac health, but is not routinely examined due to its invasive catheterisation procedure. Here, we demonstrate for the first time that the JVP can be consistently observed in a non-contact manner using a novel light-based photoplethysmographic imaging system, coded hemodynamic imaging (CHI). Read More

2016Mar
Authors: Daya Bay Collaboration, F. P. An, A. B. Balantekin, H. R. Band, M. Bishai, S. Blyth, D. Cao, G. F. Cao, J. Cao, W. R. Cen, Y. L. Chan, J. F. Chang, L. C. Chang, Y. Chang, H. S. Chen, Q. Y. Chen, S. M. Chen, Y. X. Chen, Y. Chen, J. H. Cheng, J. -H. Cheng, J. Cheng, Y. P. Cheng, Z. K. Cheng, J. J. Cherwinka, M. C. Chu, A. Chukanov, J. P. Cummings, J. de Arcos, Z. Y. Deng, X. F. Ding, Y. Y. Ding, M. V. Diwan, M. Dolgareva, J. Dove, D. A. Dwyer, W. R. Edwards, R. Gill, M. Gonchar, G. H. Gong, H. Gong, M. Grassi, W. Q. Gu, M. Y. Guan, L. Guo, R. P. Guo, X. H. Guo, Z. Guo, R. W. Hackenburg, R. Han, S. Hans, M. He, K. M. Heeger, Y. K. Heng, A. Higuera, Y. K. Hor, Y. B. Hsiung, B. Z. Hu, T. Hu, W. Hu, E. C. Huang, H. X. Huang, X. T. Huang, P. Huber, W. Huo, G. Hussain, D. E. Jaffe, P. Jaffke, K. L. Jen, S. Jetter, X. P. Ji, X. L. Ji, J. B. Jiao, R. A. Johnson, J. Joshi, L. Kang, S. H. Kettell, S. Kohn, M. Kramer, K. K. Kwan, M. W. Kwok, T. Kwok, T. J. Langford, K. Lau, L. Lebanowski, J. Lee, J. H. C. Lee, R. T. Lei, R. Leitner, J. K. C. Leung, C. Li, D. J. Li, F. Li, G. S. Li, Q. J. Li, S. Li, S. C. Li, W. D. Li, X. N. Li, Y. F. Li, Z. B. Li, H. Liang, C. J. Lin, G. L. Lin, S. Lin, S. K. Lin, Y. -C. Lin, J. J. Ling, J. M. Link, L. Littenberg, B. R. Littlejohn, D. W. Liu, J. J. Liu, J. L. Liu, J. C. Liu, C. W. Loh, C. Lu, H. Q. Lu, J. S. Lu, K. B. Luk, Z. Lv, Q. M. Ma, X. Y. Ma, X. B. Ma, Y. Q. Ma, Y. Malyshkin, D. A. Martinez Caicedo, K. T. McDonald, R. D. McKeown, I. Mitchell, M. Mooney, Y. Nakajima, J. Napolitano, D. Naumov, E. Naumova, H. Y. Ngai, Z. Ning, 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, G. X. Sun, J. L. Sun, W. Tang, D. Taychenachev, T. Konstantin, K. V. Tsang, C. E. Tull, N. Viaux, B. Viren, V. Vorobel, C. H. Wang, M. Wang, N. Y. Wang, R. G. Wang, W. Wang, W. W. Wang, X. Wang, Y. F. Wang, Z. Wang, Z. Wang, Z. M. Wang, H. Y. Wei, L. J. Wen, K. Whisnant, C. G. White, L. Whitehead, T. Wise, H. L. H. Wong, S. C. F. Wong, E. Worcester, C. -H. Wu, Q. Wu, D. M. Xia, J. K. Xia, Z. Z. Xing, J. Y. Xu, J. L. Xu, J. Xu, Y. Xu, T. Xue, J. Yan, C. G. Yang, H. Yang, L. Yang, M. S. Yang, M. T. Yang, M. Ye, Z. Ye, M. Yeh, B. L. Young, G. Y. Yu, Z. Y. Yu, L. Zhan, C. Zhang, H. H. Zhang, J. W. Zhang, Q. M. Zhang, X. T. Zhang, Y. M. Zhang, Y. X. Zhang, Y. M. Zhang, Z. J. Zhang, Z. Y. Zhang, Z. P. Zhang, J. Zhao, Q. W. Zhao, Y. F. Zhao, Y. B. Zhao, W. L. Zhong, L. Zhou, N. Zhou, H. L. Zhuang, J. H. Zou

This article reports an improved independent measurement of neutrino mixing angle $\theta_{13}$ at the Daya Bay Reactor Neutrino Experiment. Electron antineutrinos were identified by inverse $\beta$-decays with the emitted neutron captured by hydrogen, yielding a data-set with principally distinct uncertainties from that with neutrons captured by gadolinium. With the final two of eight antineutrino detectors installed, this study used 621 days of data including the previously reported 217-day data set with six detectors. Read More

We developed a highly sensitive, reliable and portable automatic system (H$^{3}$) to monitor the radon concentration of the underground experimental halls of the Daya Bay Reactor Neutrino Experiment. H$^{3}$ is able to measure radon concentration with a statistical error less than 10\% in a 1-hour measurement of dehumidified air (R.H. Read More

We consider the problem of estimating the s-th derivative of a density function f by the tilted Kernel estimator introduced in Hall and Doosti (2012). Then we further show this estimator achieves the same convergence rate, in probability, the wavelet estimators achieved as shown in Hall and Patil (1995). Read More

2015Sep
Affiliations: 1Aberdeen Tunnel Experiment Collaboration, 2Aberdeen Tunnel Experiment Collaboration, 3Aberdeen Tunnel Experiment Collaboration, 4Aberdeen Tunnel Experiment Collaboration, 5Aberdeen Tunnel Experiment Collaboration, 6Aberdeen Tunnel Experiment Collaboration, 7Aberdeen Tunnel Experiment Collaboration, 8Aberdeen Tunnel Experiment Collaboration, 9Aberdeen Tunnel Experiment Collaboration, 10Aberdeen Tunnel Experiment Collaboration, 11Aberdeen Tunnel Experiment Collaboration, 12Aberdeen Tunnel Experiment Collaboration, 13Aberdeen Tunnel Experiment Collaboration, 14Aberdeen Tunnel Experiment Collaboration, 15Aberdeen Tunnel Experiment Collaboration, 16Aberdeen Tunnel Experiment Collaboration, 17Aberdeen Tunnel Experiment Collaboration, 18Aberdeen Tunnel Experiment Collaboration, 19Aberdeen Tunnel Experiment Collaboration, 20Aberdeen Tunnel Experiment Collaboration, 21Aberdeen Tunnel Experiment Collaboration, 22Aberdeen Tunnel Experiment Collaboration, 23Aberdeen Tunnel Experiment Collaboration, 24Aberdeen Tunnel Experiment Collaboration, 25Aberdeen Tunnel Experiment Collaboration, 26Aberdeen Tunnel Experiment Collaboration, 27Aberdeen Tunnel Experiment Collaboration, 28Aberdeen Tunnel Experiment Collaboration, 29Aberdeen Tunnel Experiment Collaboration, 30Aberdeen Tunnel Experiment Collaboration, 31Aberdeen Tunnel Experiment Collaboration, 32Aberdeen Tunnel Experiment Collaboration, 33Aberdeen Tunnel Experiment Collaboration, 34Aberdeen Tunnel Experiment Collaboration

We have measured the muon flux and production rate of muon-induced neutrons at a depth of 611 m water equivalent. Our apparatus comprises three layers of crossed plastic scintillator hodoscopes for tracking the incident cosmic-ray muons and 760 L of gadolinium-doped liquid scintillator for producing and detecting neutrons. The vertical muon intensity was measured to be $I_{\mu} = (5. Read More

2015Aug
Authors: Daya Bay Collaboration, F. P. An, A. B. Balantekin, H. R. Band, M. Bishai, S. Blyth, I. Butorov, D. Cao, G. F. Cao, J. Cao, W. R. Cen, Y. L. Chan, J. F. Chang, L. C. Chang, Y. Chang, H. S. Chen, Q. Y. Chen, S. M. Chen, Y. X. Chen, Y. Chen, J. H. Cheng, J. Cheng, Y. P. Cheng, J. J. Cherwinka, M. C. Chu, J. P. Cummings, J. de Arcos, Z. Y. Deng, X. F. Ding, Y. Y. Ding, M. V. Diwan, J. Dove, E. Draeger, D. A. Dwyer, W. R. Edwards, S. R. Ely, R. Gill, M. Gonchar, G. H. Gong, H. Gong, M. Grassi, W. Q. Gu, M. Y. Guan, L. Guo, X. H. Guo, R. W. Hackenburg, R. Han, S. Hans, M. He, K. M. Heeger, Y. K. Heng, A. Higuera, Y. K. Hor, Y. B. Hsiung, B. Z. Hu, L. M. Hu, L. J. Hu, T. Hu, W. Hu, E. C. Huang, H. X. Huang, X. T. Huang, P. Huber, G. Hussain, D. E. Jaffe, P. Jaffke, K. L. Jen, S. Jetter, X. P. Ji, X. L. Ji, J. B. Jiao, R. A. Johnson, L. Kang, S. H. Kettell, S. Kohn, M. Kramer, K. K. Kwan, M. W. Kwok, T. Kwok, T. J. Langford, K. Lau, L. Lebanowski, J. Lee, R. T. Lei, R. Leitner, K. Y. Leung, J. K. C. Leung, C. A. Lewis, D. J. Li, F. Li, G. S. Li, Q. J. 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, P. Y. Lin, S. K. Lin, J. J. Ling, J. M. Link, L. Littenberg, B. R. Littlejohn, D. W. Liu, H. Liu, J. L. Liu, J. C. Liu, S. S. Liu, C. Lu, H. Q. Lu, J. S. Lu, K. B. Luk, Q. M. Ma, X. Y. Ma, X. B. Ma, Y. Q. Ma, D. A. Martinez Caicedo, K. T. McDonald, R. D. McKeown, Y. Meng, I. Mitchell, J. Monari Kebwaro, Y. Nakajima, J. Napolitano, D. Naumov, E. Naumova, H. Y. Ngai, Z. Ning, J. P. Ochoa-Ricoux, A. Olshevski, H. -R. Pan, J. Park, S. Patton, V. Pec, J. C. Peng, L. E. Piilonen, L. Pinsky, C. S. J. Pun, F. Z. Qi, M. Qi, X. Qian, N. Raper, B. Ren, J. Ren, R. Rosero, B. Roskovec, X. C. Ruan, B. B. Shao, H. Steiner, G. X. Sun, J. L. Sun, W. Tang, D. Taychenachev, K. V. Tsang, C. E. Tull, Y. C. Tung, N. Viaux, B. Viren, V. Vorobel, C. H. Wang, M. Wang, N. Y. Wang, R. G. Wang, W. Wang, W. W. Wang, X. Wang, Y. F. Wang, Z. Wang, Z. Wang, Z. M. Wang, H. Y. Wei, L. J. Wen, K. Whisnant, C. G. White, L. Whitehead, T. Wise, H. L. H. Wong, S. C. F. Wong, E. Worcester, Q. Wu, D. M. Xia, J. K. Xia, X. Xia, Z. Z. Xing, J. Y. Xu, J. L. Xu, J. Xu, Y. Xu, T. Xue, J. Yan, C. G. Yang, L. Yang, M. S. Yang, M. T. Yang, M. Ye, M. Yeh, B. L. Young, G. Y. Yu, Z. Y. Yu, S. L. Zang, L. Zhan, C. Zhang, H. H. Zhang, J. W. Zhang, Q. M. Zhang, Y. M. Zhang, Y. X. Zhang, Y. M. Zhang, Z. J. Zhang, Z. Y. Zhang, Z. P. Zhang, J. Zhao, Q. W. Zhao, Y. F. Zhao, Y. B. Zhao, L. Zheng, W. L. Zhong, L. Zhou, N. Zhou, H. L. Zhuang, J. H. Zou

This Letter reports a measurement of the flux and energy spectrum of electron antineutrinos from six 2.9~GW$_{th}$ nuclear reactors with six detectors deployed in two near (effective baselines 512~m and 561~m) and one far (1,579~m) underground experimental halls in the Daya Bay experiment. Using 217 days of data, 296,721 and 41,589 inverse beta decay (IBD) candidates were detected in the near and far halls, respectively. Read More

2015Aug
Authors: F. P. An, J. Z. Bai, A. B. Balantekin, H. R. Band, D. Beavis, W. Beriguete, M. Bishai, S. Blyth, R. L. Brown, I. Butorov, D. Cao, G. F. Cao, J. Cao, R. Carr, W. R. Cen, W. T. Chan, Y. L. Chan, J. F. Chang, L. C. Chang, Y. Chang, C. Chasman, H. Y. Chen, H. S. Chen, M. J. Chen, Q. Y. Chen, S. J. Chen, S. M. Chen, X. C. Chen, X. H. Chen, X. S. Chen, Y. X. Chen, Y. Chen, J. H. Cheng, J. Cheng, Y. P. Cheng, J. J. Cherwinka, S. Chidzik, K. Chow, M. C. Chu, J. P. Cummings, J. de Arcos, Z. Y. Deng, X. F. Ding, Y. Y. Ding, M. V. Diwan, L. Dong, J. Dove, E. Draeger, X. F. Du, D. A. Dwyer, W. R. Edwards, S. R. Ely, S. D. Fang, J. Y. Fu, Z. W. Fu, L. Q. Ge, V. Ghazikhanian, R. Gill, J. Goett, M. Gonchar, G. H. Gong, H. Gong, Y. A. Gornushkin, M. Grassi, L. S. Greenler, W. Q. Gu, M. Y. Guan, R. P. Guo, X. H. Guo, R. W. Hackenburg, R. L. Hahn, R. Han, S. Hans, M. He, Q. He, W. S. He, K. M. Heeger, Y. K. Heng, A. Higuera, P. Hinrichs, T. H. Ho, M. Hoff, Y. K. Hor, Y. B. Hsiung, B. Z. Hu, L. M. Hu, L. J. Hu, T. Hu, W. Hu, E. C. Huang, H. Z. Huang, H. X. Huang, P. W. Huang, X. Huang, X. T. Huang, P. Huber, G. Hussain, Z. Isvan, D. E. Jaffe, P. Jaffke, K. L. Jen, S. Jetter, X. P. Ji, X. L. Ji, H. J. Jiang, W. Q. Jiang, J. B. Jiao, R. A. Johnson, J. Joseph, L. Kang, S. H. Kettell, S. Kohn, M. Kramer, K. K. Kwan, M. W. Kwok, T. Kwok, C. Y. Lai, W. C. Lai, W. H. Lai, T. J. Langford, K. Lau, L. Lebanowski, J. Lee, M. K. P. Lee, R. T. Lei, R. Leitner, J. K. C. Leung, K. Y. Leung, C. A. Lewis, B. Li, C. Li, D. J. Li, F. Li, G. S. Li, J. Li, N. Y. Li, Q. J. Li, S. F. Li, S. C. Li, W. D. Li, X. B. Li, X. N. Li, X. Q. Li, Y. Li, Y. F. Li, Z. B. Li, H. Liang, J. Liang, C. J. Lin, G. L. Lin, P. Y. Lin, S. X. Lin, S. K. Lin, Y. C. Lin, J. J. Ling, J. M. Link, L. Littenberg, B. R. Littlejohn, B. J. Liu, C. Liu, D. W. Liu, H. Liu, J. L. Liu, J. C. Liu, S. Liu, S. S. Liu, X. Liu, Y. B. Liu, C. Lu, H. Q. Lu, J. S. Lu, A. Luk, K. B. Luk, T. Luo, X. L. Luo, L. H. Ma, Q. M. Ma, X. Y. Ma, X. B. Ma, Y. Q. Ma, B. Mayes, K. T. McDonald, M. C. McFarlane, R. D. McKeown, Y. Meng, I. Mitchell, D. Mohapatra, J. Monari Kebwaro, J. E. Morgan, Y. Nakajima, J. Napolitano, D. Naumov, E. Naumova, C. Newsom, H. Y. Ngai, W. K. Ngai, Y. B. Nie, Z. Ning, J. P. Ochoa-Ricoux, A. Olshevskiy, A. Pagac, H. -R. Pan, S. Patton, C. Pearson, V. Pec, J. C. Peng, L. E. Piilonen, L. Pinsky, C. S. J. Pun, F. Z. Qi, M. Qi, X. Qian, N. Raper, B. Ren, J. Ren, R. Rosero, B. Roskovec, X. C. Ruan, W. R. Sands III, B. Seilhan, B. B. Shao, K. Shih, W. Y. Song, H. Steiner, P. Stoler, M. Stuart, G. X. Sun, J. L. Sun, N. Tagg, Y. H. Tam, H. K. Tanaka, W. Tang, X. Tang, D. Taychenachev, H. Themann, Y. Torun, S. Trentalange, O. Tsai, K. V. Tsang, R. H. M. Tsang, C. E. Tull, Y. C. Tung, N. Viaux, B. Viren, S. Virostek, V. Vorobel, C. H. Wang, L. S. Wang, L. Y. Wang, L. Z. Wang, M. Wang, N. Y. Wang, R. G. Wang, T. Wang, W. Wang, W. W. Wang, X. T. Wang, X. Wang, Y. F. Wang, Z. Wang, Z. Wang, Z. M. Wang, D. M. Webber, H. Y. Wei, Y. D. Wei, L. J. Wen, D. L. Wenman, K. Whisnant, C. G. White, L. Whitehead, C. A. Whitten Jr., J. Wilhelmi, T. Wise, H. C. Wong, H. L. H. Wong, J. Wong, S. C. F. Wong, E. Worcester, F. F. Wu, Q. Wu, D. M. Xia, J. K. Xia, S. T. Xiang, Q. Xiao, Z. Z. Xing, G. Xu, J. Y. Xu, J. L. Xu, J. Xu, W. Xu, Y. Xu, T. Xue, J. Yan, C. G. Yang, L. Yang, M. S. Yang, M. T. Yang, M. Ye, M. Yeh, Y. S. Yeh, K. Yip, B. L. Young, G. Y. Yu, Z. Y. Yu, S. Zeng, L. Zhan, C. Zhang, F. H. Zhang, H. H. Zhang, J. W. Zhang, K. Zhang, Q. X. Zhang, Q. M. Zhang, S. H. Zhang, X. T. Zhang, Y. C. Zhang, Y. H. Zhang, Y. M. Zhang, Y. X. Zhang, Y. M. Zhang, Z. J. Zhang, Z. Y. Zhang, Z. P. Zhang, J. Zhao, Q. W. Zhao, Y. F. Zhao, Y. B. Zhao, L. Zheng, W. L. Zhong, L. Zhou, N. Zhou, Z. Y. Zhou, H. L. Zhuang, S. Zimmerman, J. H. Zou

The Daya Bay experiment was the first to report simultaneous measurements of reactor antineutrinos at multiple baselines leading to the discovery of $\bar{\nu}_e$ oscillations over km-baselines. Subsequent data has provided the world's most precise measurement of $\rm{sin}^22\theta_{13}$ and the effective mass splitting $\Delta m_{ee}^2$. The experiment is located in Daya Bay, China where the cluster of six nuclear reactors is among the world's most prolific sources of electron antineutrinos. Read More

2015May
Authors: Daya Bay Collaboration, F. P. An, A. B. Balantekin, H. R. Band, M. Bishai, S. Blyth, I. Butorov, G. F. Cao, J. Cao, W. R. Cen, Y. L. Chan, J. F. Chang, L. C. Chang, Y. Chang, H. S. Chen, Q. Y. Chen, S. M. Chen, Y. X. Chen, Y. Chen, J. H. Cheng, J. Cheng, Y. P. Cheng, J. J. Cherwinka, M. C. Chu, J. P. Cummings, J. de Arcos, Z. Y. Deng, X. F. Ding, Y. Y. Ding, M. V. Diwan, E. Draeger, D. A. Dwyer, W. R. Edwards, S. R. Ely, R. Gill, M. Gonchar, G. H. Gong, H. Gong, M. Grassi, W. Q. Gu, M. Y. Guan, L. Guo, X. H. Guo, R. W. Hackenburg, R. Han, S. Hans, M. He, K. M. Heeger, Y. K. Heng, Y. K. Hor, Y. B. Hsiung, B. Z. Hu, L. M. Hu, L. J. Hu, T. Hu, W. Hu, E. C. Huang, H. X. Huang, X. T. Huang, P. Huber, G. Hussain, D. E. Jaffe, P. Jaffke, K. L. Jen, S. Jetter, X. P. Ji, X. L. Ji, J. B. Jiao, R. A. Johnson, L. Kang, S. H. Kettell, M. Kramer, K. K. Kwan, M. W. Kwok, T. Kwok, T. J. Langford, K. Lau, L. Lebanowski, J. Lee, R. T. Lei, R. Leitner, A. Leung, J. K. C. Leung, C. A. Lewis, D. J. Li, F. Li, G. S. Li, Q. J. 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, P. Y. Lin, S. K. Lin, J. J. Ling, J. M. Link, L. Littenberg, B. R. Littlejohn, D. W. Liu, H. Liu, J. L. Liu, J. C. Liu, S. S. Liu, C. Lu, H. Q. Lu, J. S. Lu, K. B. Luk, Q. M. Ma, X. Y. Ma, X. B. Ma, Y. Q. Ma, K. T. McDonald, R. D. McKeown, Y. Meng, I. Mitchell, J. Monari Kebwaro, Y. Nakajima, J. Napolitano, D. Naumov, E. Naumova, H. Y. Ngai, Z. Ning, J. P. Ochoa-Ricoux, A. Olshevski, S. Patton, V. Pec, J. C. Peng, L. E. Piilonen, L. Pinsky, C. S. J. Pun, F. Z. Qi, M. Qi, X. Qian, N. Raper, B. Ren, J. Ren, R. Rosero, B. Roskovec, X. C. Ruan, B. B. Shao, H. Steiner, G. X. Sun, J. L. Sun, W. Tang, H. Themann, K. V. Tsang, C. E. Tull, Y. C. Tung, N. Viaux, B. Viren, V. Vorobel, C. H. Wang, M. Wang, N. Y. Wang, R. G. Wang, W. Wang, W. W. Wang, X. Wang, Y. F. Wang, Z. Wang, Z. Wang, Z. M. Wang, H. Y. Wei, L. J. Wen, K. Whisnant, C. G. White, L. Whitehead, T. Wise, H. L. H. Wong, S. C. F. Wong, E. Worcester, Q. Wu, D. M. Xia, J. K. Xia, X. Xia, Z. Z. Xing, J. Y. Xu, J. L. Xu, J. Xu, Y. Xu, T. Xue, J. Yan, C. G. Yang, L. Yang, M. S. Yang, M. T. Yang, M. Ye, M. Yeh, Y. S. Yeh, B. L. Young, G. Y. Yu, Z. Y. Yu, S. L. Zang, L. Zhan, C. Zhang, H. H. Zhang, J. W. Zhang, Q. M. Zhang, Y. M. Zhang, Y. X. Zhang, Y. M. Zhang, Z. J. Zhang, Z. Y. Zhang, Z. P. Zhang, J. Zhao, Q. W. Zhao, Y. F. Zhao, Y. B. Zhao, L. Zheng, W. L. Zhong, L. Zhou, N. Zhou, H. L. Zhuang, J. H. Zou

We report a new measurement of electron antineutrino disappearance using the fully-constructed Daya Bay Reactor Neutrino Experiment. The final two of eight antineutrino detectors were installed in the summer of 2012. Including the 404 days of data collected from October 2012 to November 2013 resulted in a total exposure of 6. Read More

2014Jul
Authors: F. P. An1, A. B. Balantekin2, H. R. Band3, W. Beriguete4, M. Bishai5, S. Blyth6, I. Butorov7, G. F. Cao8, J. Cao9, Y. L. Chan10, J. F. Chang11, L. C. Chang12, Y. Chang13, C. Chasman14, H. Chen15, Q. Y. Chen16, S. M. Chen17, X. Chen18, X. Chen19, Y. X. Chen20, Y. Chen21, Y. P. Cheng22, J. J. Cherwinka23, M. C. Chu24, J. P. Cummings25, J. de Arcos26, Z. Y. Deng27, Y. Y. Ding28, M. V. Diwan29, E. Draeger30, X. F. Du31, D. A. Dwyer32, W. R. Edwards33, S. R. Ely34, J. Y. Fu35, L. Q. Ge36, R. Gill37, M. Gonchar38, G. H. Gong39, H. Gong40, M. Grassi41, W. Q. Gu42, M. Y. Guan43, X. H. Guo44, R. W. Hackenburg45, G. H. Han46, S. Hans47, M. He48, K. M. Heeger49, Y. K. Heng50, P. Hinrichs51, Y. K. Hor52, Y. B. Hsiung53, B. Z. Hu54, L. M. Hu55, L. J. Hu56, T. Hu57, W. Hu58, E. C. Huang59, H. Huang60, X. T. Huang61, P. Huber62, G. Hussain63, Z. Isvan64, D. E. Jaffe65, P. Jaffke66, K. L. Jen67, S. Jetter68, X. P. Ji69, X. L. Ji70, H. J. Jiang71, J. B. Jiao72, R. A. Johnson73, L. Kang74, S. H. Kettell75, M. Kramer76, K. K. Kwan77, M. W. Kwok78, T. Kwok79, W. C. Lai80, K. Lau81, L. Lebanowski82, J. Lee83, R. T. Lei84, R. Leitner85, A. Leung86, J. K. C. Leung87, C. A. Lewis88, D. J. Li89, F. Li90, G. S. Li91, Q. J. Li92, W. D. Li93, X. N. Li94, X. Q. Li95, Y. F. Li96, Z. B. Li97, H. Liang98, C. J. Lin99, G. L. Lin100, P. Y. Lin101, S. K. Lin102, Y. C. Lin103, J. J. Ling104, J. M. Link105, L. Littenberg106, B. R. Littlejohn107, D. W. Liu108, H. Liu109, J. L. Liu110, J. C. Liu111, S. S. Liu112, Y. B. Liu113, C. Lu114, H. Q. Lu115, K. B. Luk116, Q. M. Ma117, X. Y. Ma118, X. B. Ma119, Y. Q. Ma120, K. T. McDonald121, M. C. McFarlane122, R. D. McKeown123, Y. Meng124, I. Mitchell125, J. Monari Kebwaro126, Y. Nakajima127, J. Napolitano128, D. Naumov129, E. Naumova130, I. Nemchenok131, H. Y. Ngai132, Z. Ning133, J. P. Ochoa-Ricoux134, A. Olshevski135, S. Patton136, V. Pec137, J. C. Peng138, L. E. Piilonen139, L. Pinsky140, C. S. J. Pun141, F. Z. Qi142, M. Qi143, X. Qian144, N. Raper145, B. Ren146, J. Ren147, R. Rosero148, B. Roskovec149, X. C. Ruan150, B. B. Shao151, H. Steiner152, G. X. Sun153, J. L. Sun154, Y. H. Tam155, X. Tang156, H. Themann157, K. V. Tsang158, R. H. M. Tsang159, C. E. Tull160, Y. C. Tung161, B. Viren162, V. Vorobel163, C. H. Wang164, L. S. Wang165, L. Y. Wang166, M. Wang167, N. Y. Wang168, R. G. Wang169, W. Wang170, W. W. Wang171, X. Wang172, Y. F. Wang173, Z. Wang174, Z. Wang175, Z. M. Wang176, D. M. Webber177, H. Y. Wei178, Y. D. Wei179, L. J. Wen180, K. Whisnant181, C. G. White182, L. Whitehead183, T. Wise184, H. L. H. Wong185, S. C. F. Wong186, E. Worcester187, Q. Wu188, D. M. Xia189, J. K. Xia190, X. Xia191, Z. Z. Xing192, J. Y. Xu193, J. L. Xu194, J. Xu195, Y. Xu196, T. Xue197, J. Yan198, C. C. Yang199, L. Yang200, M. S. Yang201, M. T. Yang202, M. Ye203, M. Yeh204, Y. S. Yeh205, B. L. Young206, G. Y. Yu207, J. Y. Yu208, Z. Y. Yu209, S. L. Zang210, B. Zeng211, L. Zhan212, C. Zhang213, F. H. Zhang214, J. W. Zhang215, Q. M. Zhang216, Q. Zhang217, S. H. Zhang218, Y. C. Zhang219, Y. M. Zhang220, Y. H. Zhang221, Y. X. Zhang222, Z. J. Zhang223, Z. Y. Zhang224, Z. P. Zhang225, J. Zhao226, Q. W. Zhao227, Y. Zhao228, Y. B. Zhao229, L. Zheng230, W. L. Zhong231, L. Zhou232, Z. Y. Zhou233, H. L. Zhuang234, J. H. Zou235
Affiliations: 1Daya Bay Collaboration, 2Daya Bay Collaboration, 3Daya Bay Collaboration, 4Daya Bay Collaboration, 5Daya Bay Collaboration, 6Daya Bay Collaboration, 7Daya Bay Collaboration, 8Daya Bay Collaboration, 9Daya Bay Collaboration, 10Daya Bay Collaboration, 11Daya Bay Collaboration, 12Daya Bay Collaboration, 13Daya Bay Collaboration, 14Daya Bay Collaboration, 15Daya Bay Collaboration, 16Daya Bay Collaboration, 17Daya Bay Collaboration, 18Daya Bay Collaboration, 19Daya Bay Collaboration, 20Daya Bay Collaboration, 21Daya Bay Collaboration, 22Daya Bay Collaboration, 23Daya Bay Collaboration, 24Daya Bay Collaboration, 25Daya Bay Collaboration, 26Daya Bay Collaboration, 27Daya Bay Collaboration, 28Daya Bay Collaboration, 29Daya Bay Collaboration, 30Daya Bay Collaboration, 31Daya Bay Collaboration, 32Daya Bay Collaboration, 33Daya Bay Collaboration, 34Daya Bay Collaboration, 35Daya Bay Collaboration, 36Daya Bay Collaboration, 37Daya Bay Collaboration, 38Daya Bay Collaboration, 39Daya 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Bay Collaboration, 190Daya Bay Collaboration, 191Daya Bay Collaboration, 192Daya Bay Collaboration, 193Daya Bay Collaboration, 194Daya Bay Collaboration, 195Daya Bay Collaboration, 196Daya Bay Collaboration, 197Daya Bay Collaboration, 198Daya Bay Collaboration, 199Daya Bay Collaboration, 200Daya Bay Collaboration, 201Daya Bay Collaboration, 202Daya Bay Collaboration, 203Daya Bay Collaboration, 204Daya Bay Collaboration, 205Daya Bay Collaboration, 206Daya Bay Collaboration, 207Daya Bay Collaboration, 208Daya Bay Collaboration, 209Daya Bay Collaboration, 210Daya Bay Collaboration, 211Daya Bay Collaboration, 212Daya Bay Collaboration, 213Daya Bay Collaboration, 214Daya Bay Collaboration, 215Daya Bay Collaboration, 216Daya Bay Collaboration, 217Daya Bay Collaboration, 218Daya Bay Collaboration, 219Daya Bay Collaboration, 220Daya Bay Collaboration, 221Daya Bay Collaboration, 222Daya Bay Collaboration, 223Daya Bay Collaboration, 224Daya Bay Collaboration, 225Daya Bay Collaboration, 226Daya Bay Collaboration, 227Daya Bay Collaboration, 228Daya Bay Collaboration, 229Daya Bay Collaboration, 230Daya Bay Collaboration, 231Daya Bay Collaboration, 232Daya Bay Collaboration, 233Daya Bay Collaboration, 234Daya Bay Collaboration, 235Daya Bay Collaboration

A search for light sterile neutrino mixing was performed with the first 217 days of data from the Daya Bay Reactor Antineutrino Experiment. The experiment's unique configuration of multiple baselines from six 2.9~GW$_{\rm th}$ nuclear reactors to six antineutrino detectors deployed in two near (effective baselines 512~m and 561~m) and one far (1579~m) underground experimental halls makes it possible to test for oscillations to a fourth (sterile) neutrino in the $10^{\rm -3}~{\rm eV}^{2} < |\Delta m_{41}^{2}| < 0. Read More

2014Jun
Authors: Daya Bay Collaboration, F. P. An, A. B. Balantekin, H. R. Band, W. Beriguete, M. Bishai, S. Blyth, I. Butorov, G. F. Cao, J. Cao, Y. L. Chan, J. F. Chang, L. C. Chang, Y. Chang, C. Chasman, H. Chen, Q. Y. Chen, S. M. Chen, X. Chen, X. Chen, Y. X. Chen, Y. Chen, Y. P. Cheng, J. J. Cherwinka, M. C. Chu, J. P. Cummings, J. de Arcos, Z. Y. Deng, Y. Y. Ding, M. V. Diwan, E. Draeger, X. F. Du, D. A. Dwyer, W. R. Edwards, S. R. Ely, J. Y. Fu, L. Q. Ge, R. Gill, M. Gonchar, G. H. Gong, H. Gong, W. Q. Gu, M. Y. Guan, X. H. Guo, R. W. Hackenburg, G. H. Han, S. Hans, M. He, K. M. Heeger, Y. K. Heng, P. Hinrichs, Y. K. Hor, Y. B. Hsiung, B. Z. Hu, L. M. Hu, L. J. Hu, T. Hu, W. Hu, E. C. Huang, H. Huang, X. T. Huang, P. Huber, G. Hussain, Z. Isvan, D. E. Jaffe, P. Jaffke, K. L. Jen, S. Jetter, X. P. Ji, X. L. Ji, H. J. Jiang, J. B. Jiao, R. A. Johnson, L. Kang, S. H. Kettell, M. Kramer, K. K. Kwan, M. W. Kwok, T. Kwok, W. C. Lai, K. Lau, L. Lebanowski, J. Lee, R. T. Lei, R. Leitner, A. Leung, J. K. C. Leung, C. A. Lewis, D. J. Li, F. Li, G. S. Li, Q. 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, P. Y. Lin, S. K. Lin, Y. C. Lin, J. J. Ling, J. M. Link, L. Littenberg, B. R. Littlejohn, D. W. Liu, H. Liu, J. L. Liu, J. C. Liu, S. S. Liu, Y. B. Liu, C. Lu, H. Q. Lu, K. -B. Luk, Q. M. Ma, X. Y. Ma, X. B. Ma, Y. Q. Ma, K. T. McDonald, M. C. McFarlane, R. D. McKeown, Y. Meng, I. Mitchell, J. Monari Kebwaro, Y. Nakajima, J. Napolitano, D. Naumov, E. Naumova, I. Nemchenok, H. Y. Ngai, Z. Ning, J. P. Ochoa-Ricoux, A. Olshevski, S. Patton, V. Pec, J. C. Peng, L. E. Piilonen, L. Pinsky, C. S. J. Pun, F. Z. Qi, M. Qi, X. Qian, N. Raper, B. Ren, J. Ren, R. Rosero, B. Roskovec, X. C. Ruan, B. B. Shao, H. Steiner, G. X. Sun, J. L. Sun, Y. H. Tam, X. Tang, H. Themann, K. V. Tsang, R. H. M. Tsang, C. E. Tull, Y. C. Tung, B. Viren, V. Vorobel, C. H. Wang, L. S. Wang, L. Y. Wang, M. Wang, N. Y. Wang, R. G. Wang, W. Wang, W. W. Wang, X. Wang, Y. F. Wang, Z. Wang, Z. Wang, Z. M. Wang, D. M. Webber, H. Y. Wei, Y. D. Wei, L. J. Wen, K. Whisnant, C. G. White, L. Whitehead, T. Wise, H. L. H. Wong, S. C. F. Wong, E. Worcester, Q. Wu, D. M. Xia, J. K. Xia, X. Xia, Z. Z. Xing, J. Y. Xu, J. L. Xu, J. Xu, Y. Xu, T. Xue, J. Yan, C. C. Yang, L. Yang, M. S. Yang, M. T. Yang, M. Ye, M. Yeh, Y. S. Yeh, B. L. Young, G. Y. Yu, J. Y. Yu, Z. Y. Yu, S. L. Zang, B. Zeng, L. Zhan, C. Zhang, F. H. Zhang, J. W. Zhang, Q. M. Zhang, Q. Zhang, S. H. Zhang, Y. C. Zhang, Y. M. Zhang, Y. H. Zhang, Y. X. Zhang, Z. J. Zhang, Z. Y. Zhang, Z. P. Zhang, J. Zhao, Q. W. Zhao, Y. Zhao, Y. B. Zhao, L. Zheng, W. L. Zhong, L. Zhou, Z. Y. Zhou, H. L. Zhuang, J. H. Zou

A new measurement of the $\theta_{13}$ mixing angle has been obtained at the Daya Bay Reactor Neutrino Experiment via the detection of inverse beta decays tagged by neutron capture on hydrogen. The antineutrino events for hydrogen capture are distinct from those for gadolinium capture with largely different systematic uncertainties, allowing a determination independent of the gadolinium-capture result and an improvement on the precision of $\theta_{13}$ measurement. With a 217-day antineutrino data set obtained with six antineutrino detectors and from six 2. Read More

2013Oct
Authors: Daya Bay Collaboration, F. P. An, A. B. Balantekin, H. R. Band, W. Beriguete, M. Bishai, S. Blyth, R. L. Brown, I. Butorov, G. F. Cao, J. Cao, R. Carr, Y. L. Chan, J. F. Chang, Y. Chang, C. Chasman, H. S. Chen, H. Y. Chen, S. J. Chen, S. M. Chen, X. C. Chen, X. H. Chen, Y. Chen, Y. X. Chen, Y. P. Cheng, J. J. Cherwinka, M. C. Chu, J. P. Cummings, J. de Arcos, Z. Y. Deng, Y. Y. Ding, M. V. Diwan, E. Draeger, X. F. Du, D. A. Dwyer, W. R. Edwards, S. R. Ely, J. Y. Fu, L. Q. Ge, R. Gill, M. Gonchar, G. H. Gong, H. Gong, Y. A. Gornushkin, W. Q. Gu, M. Y. Guan, X. H. Guo, R. W. Hackenburg, R. L. Hahn, G. H. Han, S. Hans, M. He, K. M. Heeger, Y. K. Heng, P. Hinrichs, yk. Hor, Y. B. Hsiung, B. Z. Hu, L. J. Hu, L. M. Hu, T. Hu, W. Hu, E. C. Huang, H. X. Huang, H. Z. Huang, X. T. Huang, P. Huber, G. Hussain, Z. Isvan, D. E. Jaffe, P. Jaffke, S. Jetter, X. L. Ji, X. P. Ji, H. J. Jiang, J. B. Jiao, R. A. Johnson, L. Kang, S. H. Kettell, M. Kramer, K. K. Kwan, M. W. Kwok, T. Kwok, W. C. Lai, W. H. Lai, K. Lau, L. Lebanowski, J. Lee, R. T. Lei, R. Leitner, A. Leung, J. K. C. Leung, C. A. Lewis, D. J. Li, F. Li, G. S. Li, Q. 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. K. Lin, Y. C. Lin, J. J. Ling, J. M. Link, L. Littenberg, B. R. Littlejohn, D. W. Liu, H. Liu, J. C. Liu, J. L. Liu, S. S. Liu, Y. B. Liu, C. Lu, H. Q. Lu, K. B. Luk, Q. M. Ma, X. B. Ma, X. Y. Ma, Y. Q. Ma, K. T. McDonald, M. C. McFarlane, R. D. McKeown, Y. Meng, I. Mitchell, Y. Nakajima, J. Napolitano, D. Naumov, E. Naumova, I. Nemchenok, H. Y. Ngai, W. K. Ngai, Z. Ning, J. P. Ochoa-Ricoux, A. Olshevski, S. Patton, V. Pec, J. C. Peng, L. E. Piilonen, L. Pinsky, C. S. J. Pun, F. Z. Qi, M. Qi, X. Qian, N. Raper, B. Ren, J. Ren, R. Rosero, B. Roskovec, X. C. Ruan, B. B. Shao, H. Steiner, G. X. Sun, J. L. Sun, Y. H. Tam, H. K. Tanaka, X. Tang, H. Themann, S. Trentalange, O. Tsai, K. V. Tsang, R. H. M. Tsang, C. E. Tull, Y. C. Tung, B. Viren, V. Vorobel, C. H. Wang, L. S. Wang, L. Y. Wang, L. Z. Wang, M. Wang, N. Y. Wang, R. G. Wang, W. Wang, W. W. Wang, X. Wang, Y. F. Wang, Z. Wang, Z. Wang, Z. M. Wang, D. M. Webber, H. Wei, Y. D. Wei, L. J. Wen, K. Whisnant, C. G. White, L. Whitehead, T. Wise, H. L. H. Wong, S. C. F. Wong, E. Worcester, Q. Wu, D. M. Xia, J. K. Xia, X. Xia, Z. Z. Xing, J. Xu, J. L. Xu, J. Y. Xu, Y. Xu, T. Xue, J. Yan, C. G. Yang, L. Yang, M. S. Yang, M. Ye, M. Yeh, Y. S. Yeh, B. L. Young, G. Y. Yu, J. Y. Yu, Z. Y. Yu, S. L. Zang, L. Zhan, C. Zhang, F. H. Zhang, J. W. Zhang, Q. M. Zhang, S. H. Zhang, Y. C. Zhang, Y. H. Zhang, Y. M. Zhang, Y. X. Zhang, Z. J. Zhang, Z. P. Zhang, Z. Y. Zhang, J. Zhao, Q. W. Zhao, Y. B. Zhao, L. Zheng, W. L. Zhong, L. Zhou, Z. Y. Zhou, H. L. Zhuang, J. H. Zou

A measurement of the energy dependence of antineutrino disappearance at the Daya Bay Reactor Neutrino Experiment is reported. Electron antineutrinos ($\overline{\nu}_{e}$) from six $2.9$ GW$_{\rm th}$ reactors were detected with six detectors deployed in two near (effective baselines 512 m and 561 m) and one far (1579 m) underground experimental halls. Read More

In this paper, we describe the design, construction and performance of an apparatus installed in the Aberdeen Tunnel laboratory in Hong Kong for studying spallation neutrons induced by cosmic-ray muons under a vertical rock overburden of 611 meter water equivalent (m.w.e. Read More

2012Oct
Authors: Daya Bay Collaboration, F. P. An, Q. An, J. Z. Bai, A. B. Balantekin, H. R. Band, W. Beriguete, M. Bishai, S. Blyth, R. L. Brown, G. F. Cao, J. Cao, R. Carr, W. T. Chan, J. F. Chang, Y. Chang, C. Chasman, H. S. Chen, H. Y. Chen, S. J. Chen, S. M. Chen, X. C. Chen, X. H. Chen, X. S. Chen, Y. Chen, Y. X. Chen, J. J. Cherwinka, M. C. Chu, J. P. Cummings, Z. Y. Deng, Y. Y. Ding, M. V. Diwan, E. Draeger, X. F. Du, D. Dwyer, W. R. Edwards, S. R. Ely, S. D. Fang, J. Y. Fu, Z. W. Fu, L. Q. Ge, R. L. Gill, M. Gonchar, G. H. Gong, H. Gong, Y. A. Gornushkin, W. Q. Gu, M. Y. Guan, X. H. Guo, R. W. Hackenburg, R. L. Hahn, S. Hans, H. F. Hao, M. He, Q. He, K. M. Heeger, Y. K. Heng, P. Hinrichs, Y. K. Hor, Y. B. Hsiung, B. Z. Hu, T. Hu, H. X. Huang, H. Z. Huang, X. T. Huang, P. Huber, V. Issakov, Z. Isvan, D. E. Jaffe, S. Jetter, X. L. Ji, X. P. Ji, H. J. Jiang, J. B. Jiao, R. A. Johnson, L. Kang, S. H. Kettell, M. Kramer, K. K. Kwan, M. W. Kwok, T. Kwok, C. Y. Lai, W. C. Lai, W. H. Lai, K. Lau, L. Lebanowski, J. Lee, R. T. Lei, R. Leitner, J. K. C. Leung, K. Y. Leung, C. A. Lewis, F. Li, G. S. Li, Q. J. Li, W. D. Li, X. B. Li, X. N. Li, X. Q. Li, Y. Li, Z. B. Li, H. Liang, C. J. Lin, G. L. Lin, S. K. Lin, Y. C. Lin, J. J. Ling, J. M. Link, L. Littenberg, B. R. Littlejohn, D. W. Liu, J. C. Liu, J. L. Liu, Y. B. Liu, C. Lu, H. Q. Lu, A. Luk, K. B. Luk, Q. M. Ma, X. B. Ma, X. Y. Ma, Y. Q. Ma, K. T. McDonald, M. C. McFarlane, R. D. McKeown, Y. Meng, D. Mohapatra, Y. Nakajima, J. Napolitano, D. Naumov, I. Nemchenok, H. Y. Ngai, W. K. Ngai, Y. B. Nie, Z. Ning, J. P. Ochoa-Ricoux, A. Olshevski, S. Patton, V. Pec, J. C. Peng, L. E. Piilonen, L. Pinsky, C. S. J. Pun, F. Z. Qi, M. Qi, X. Qian, N. Raper, J. Ren, R. Rosero, B. Roskovec, X. C. Ruan, B. B. Shao, K. Shih, H. Steiner, G. X. Sun, J. L. Sun, N. Tagg, Y. H. Tam, H. K. Tanaka, X. Tang, H. Themann, Y. Torun, S. Trentalange, O. Tsai, K. V. Tsang, R. H. M. Tsang, C. E. Tull, Y. C. Tung, B. Viren, V. Vorobel, C. H. Wang, L. S. Wang, L. Y. Wang, L. Z. Wang, M. Wang, N. Y. Wang, R. G. Wang, W. Wang, X. Wang, Y. F. Wang, Z. Wang, Z. Wang, Z. M. Wang, D. M. Webber, H. Y. Wei, Y. D. Wei, L. J. Wen, K. Whisnant, C. G. White, L. Whitehead, Y. Williamson, T. Wise, H. L. H. Wong, E. T. Worcester, F. F. Wu, Q. Wu, J. B. Xi, D. M. Xia, Z. Z. Xing, J. Xu, J. Xu, J. L. Xu, Y. Xu, T. Xue, C. G. Yang, L. Yang, M. Ye, M. Yeh, Y. S. Yeh, B. L. Young, Z. Y. Yu, L. Zhan, C. Zhang, F. H. Zhang, J. W. Zhang, Q. M. Zhang, S. H. Zhang, Y. C. Zhang, Y. H. Zhang, Y. X. Zhang, Z. J. Zhang, Z. P. Zhang, Z. Y. Zhang, J. Zhao, Q. W. Zhao, Y. B. Zhao, L. Zheng, W. L. Zhong, L. Zhou, Z. Y. Zhou, H. L. Zhuang, J. H. Zou

We report an improved measurement of the neutrino mixing angle $\theta_{13}$ from the Daya Bay Reactor Neutrino Experiment. We exclude a zero value for $\sin^22\theta_{13}$ with a significance of 7.7 standard deviations. Read More

2012May
Authors: M. Ablikim, M. N. Achasov, D. J. Ambrose, F. F. An, Q. An, Z. H. An, J. Z. Bai, Y. Ban, J. Becker, N. Berger, M. Bertani, J. M. Bian, E. Boger, O. Bondarenko, I. Boyko, R. A. Briere, V. Bytev, X. Cai, A. Calcaterra, G. F. Cao, J. F. Chang, G. Chelkov, G. Chen, H. S. Chen, J. C. Chen, M. L. Chen, S. J. Chen, Y. Chen, Y. B. Chen, H. P. Cheng, Y. P. Chu, D. Cronin-Hennessy, H. L. Dai, J. P. Dai, D. Dedovich, Z. Y. Deng, A. Denig, I. Denysenko, M. Destefanis, W. M. Ding, Y. Ding, L. Y. Dong, M. Y. Dong, S. X. Du, J. Fang, S. S. Fang, L. Fava, F. Feldbauer, C. Q. Feng, R. B. Ferroli, C. D. Fu, J. L. Fu, Y. Gao, C. Geng, K. Goetzen, W. X. Gong, W. Gradl, M. Greco, M. H. Gu, Y. T. Gu, Y. H. Guan, A. Q. Guo, L. B. Guo, Y. P. Guo, Y. L. Han, X. Q. Hao, F. A. Harris, K. L. He, M. He, Z. Y. He, T. Held, Y. K. Heng, Z. L. Hou, H. M. Hu, J. F. Hu, T. Hu, B. Huang, G. M. Huang, J. S. Huang, X. T. Huang, Y. P. Huang, T. Hussain, C. S. Ji, Q. Ji, X. B. Ji, X. L. Ji, L. K. Jia, L. L. Jiang, X. S. Jiang, J. B. Jiao, Z. Jiao, D. P. Jin, S. Jin, F. F. Jing, N. Kalantar-Nayestanaki, M. Kavatsyuk, W. Kuehn, W. Lai, J. S. Lange, J. K. C. Leung, C. H. Li, Cheng Li, Cui Li, D. M. Li, F. Li, G. Li, H. B. Li, J. C. Li, K. Li, Lei Li, N. B. Li, Q. J. Li, S. L. Li, W. D. Li, W. G. Li, X. L. Li, X. N. Li, X. Q. Li, X. R. Li, Z. B. Li, H. Liang, Y. F. Liang, Y. T. Liang, G. R. Liao, X. T. Liao, B. J. Liu, B. J. Liu, C. L. Liu, C. X. Liu, C. Y. Liu, F. H. Liu, Fang Liu, Feng Liu, H. Liu, H. B. Liu, H. H. Liu, H. M. Liu, H. W. Liu, J. P. Liu, K. Y. Liu, Kai Liu, Kun Liu, P. L. Liu, S. B. Liu, X. Liu, X. H. Liu, Y. Liu, Y. B. Liu, Z. A. Liu, Zhiqiang Liu, Zhiqing Liu, H. Loehner, G. R. Lu, H. J. Lu, J. G. Lu, Q. W. Lu, X. R. Lu, Y. P. Lu, C. L. Luo, M. X. Luo, T. Luo, X. L. Luo, M. Lv, C. L. Ma, F. C. Ma, H. L. Ma, Q. M. Ma, S. Ma, T. Ma, X. Y. Ma, Y. Ma, F. E. Maas, M. Maggiora, Q. A. Malik, H. Mao, Y. J. Mao, Z. P. Mao, J. G. Messchendorp, J. Min, T. J. Min, R. E. Mitchell, X. H. Mo, C. Morales Morales, C. Motzko, N. Yu. Muchnoi, Y. Nefedov, C. Nicholson, I. B. Nikolaev, Z. Ning, S. L. Olsen, Q. Ouyang, S. Pacetti, J. W. Park, M. Pelizaeus, H. P. Peng, K. Peters, J. L. Ping, R. G. Ping, R. Poling, E. Prencipe, C. S. J. Pun, M. Qi, S. Qian, C. F. Qiao, X. S. Qin, Y. Qin, Z. H. Qin, J. F. Qiu, K. H. Rashid, G. Rong, X. D. Ruan, A. Sarantsev, B. D. Schaefer, J. Schulze, M. Shao, C. P. Shen, X. Y. Shen, H. Y. Sheng, M. R. Shepherd, X. Y. Song, S. Spataro, B. Spruck, D. H. Sun, G. X. Sun, J. F. Sun, S. S. Sun, X. D. Sun, Y. J. Sun, Y. Z. Sun, Z. J. Sun, Z. T. Sun, C. J. Tang, X. Tang, E. H. Thorndike, H. L. Tian, D. Toth, M. Ullrich, G. S. Varner, B. Wang, B. Q. Wang, K. Wang, L. L. Wang, L. S. Wang, M. Wang, P. Wang, P. L. Wang, Q. Wang, Q. J. Wang, S. G. Wang, X. F. Wang, X. L. Wang, Y. D. Wang, Y. F. Wang, Y. Q. Wang, Z. Wang, Z. G. Wang, Z. Y. Wang, D. H. Wei, P. Weidenkaff, Q. G. Wen, S. P. Wen, M. Werner, U. Wiedner, L. H. Wu, N. Wu, S. X. Wu, W. Wu, Z. Wu, L. G. Xia, Z. J. Xiao, Y. G. Xie, Q. L. Xiu, G. F. Xu, G. M. Xu, H. Xu, Q. J. Xu, X. P. Xu, Y. Xu, Z. R. Xu, F. Xue, Z. Xue, L. Yan, W. B. Yan, Y. H. Yan, H. X. Yang, T. Yang, Y. Yang, Y. X. Yang, H. Ye, M. Ye, M. H. Ye, B. X. Yu, C. X. Yu, J. S. Yu, L. Yu, S. P. Yu, C. Z. Yuan, W. L. Yuan, Y. Yuan, A. A. Zafar, A. Zallo, Y. Zeng, B. X. Zhang, B. Y. Zhang, C. C. Zhang, D. H. Zhang, H. H. Zhang, H. Y. Zhang, J. Zhang, J. G. Zhang, J. Q. Zhang, J. W. Zhang, J. Y. Zhang, J. Z. Zhang, L. Zhang, S. H. Zhang, T. R. Zhang, X. J. Zhang, X. Y. Zhang, Y. Zhang, Y. H. Zhang, Y. S. Zhang, Z. P. Zhang, Z. Y. Zhang, G. Zhao, H. S. Zhao, J. W. Zhao, K. X. Zhao, Lei Zhao, Ling Zhao, M. G. Zhao, Q. Zhao, S. J. Zhao, T. C. Zhao, X. H. Zhao, Y. B. Zhao, Z. G. Zhao, A. Zhemchugov, B. Zheng, J. P. Zheng, Y. H. Zheng, Z. P. Zheng, B. Zhong, J. Zhong, L. Zhou, X. K. Zhou, X. R. Zhou, C. Zhu, K. Zhu, K. J. Zhu, S. H. Zhu, X. L. Zhu, X. W. Zhu, Y. M. Zhu, Y. S. Zhu, Z. A. Zhu, J. Zhuang, B. S. Zou, J. H. Zou, J. X. Zuo

Using a sample of 106 million \psi(3686) events collected with the BESIII detector at the BEPCII storage ring, we have made the first measurement of the M1 transition between the radially excited charmonium S-wave spin-triplet and the radially excited S-wave spin-singlet states: \psi(3686)\to\gamma\eta_c(2S). Analyses of the processes \psi(2S)\to \gamma\eta_c(2S) with \eta_c(2S)\to \K_S^0 K\pi and K^+K^-\pi^0 gave an \eta_c(2S) signal with a statistical significance of greater than 10 standard deviations under a wide range of assumptions about the signal and background properties. The data are used to obtain measurements of the \eta_c(2S) mass (M(\eta_c(2S))=3637. Read More

2012May
Authors: BESIII Collaboration, M. Ablikim1, M. N. Achasov2, D. J. Ambrose3, F. F. An4, Q. An5, Z. H. An6, J. Z. Bai7, R. B. Ferroli8, Y. Ban9, J. Becker10, N. Berger11, M. B. Bertani12, J. M. Bian13, E. Boger14, O. Bondarenko15, I. Boyko16, R. A. Briere17, V. Bytev18, X. Cai19, A. C. Calcaterra20, G. F. Cao21, J. F. Chang22, G. Chelkov23, G. Chen24, H. S. Chen25, J. C. Chen26, M. L. Chen27, S. J. Chen28, Y. Chen29, Y. B. Chen30, H. P. Cheng31, Y. P. Chu32, D. Cronin-Hennessy33, H. L. Dai34, J. P. Dai35, D. Dedovich36, Z. Y. Deng37, A. Denig38, I. Denysenko39, M. Destefanis40, W. M. Ding41, Y. Ding42, L. Y. Dong43, M. Y. Dong44, S. X. Du45, J. Fang46, S. S. Fang47, L. Fava48, F. Feldbauer49, C. Q. Feng50, C. D. Fu51, J. L. Fu52, Y. Gao53, C. Geng54, K. Goetzen55, W. X. Gong56, W. Gradl57, M. Greco58, M. H. Gu59, Y. T. Gu60, Y. H. Guan61, A. Q. Guo62, L. B. Guo63, Y. P. Guo64, Y. L. Han65, X. Q. Hao66, F. A. Harris67, K. L. He68, M. He69, Z. Y. He70, T. Held71, Y. K. Heng72, Z. L. Hou73, H. M. Hu74, J. F. Hu75, T. Hu76, B. Huang77, G. M. Huang78, J. S. Huang79, X. T. Huang80, Y. P. Huang81, T. Hussain82, C. S. Ji83, Q. Ji84, X. B. Ji85, X. L. Ji86, L. K. Jia87, L. L. Jiang88, X. S. Jiang89, J. B. Jiao90, Z. Jiao91, D. P. Jin92, S. Jin93, F. F. Jing94, N. Kalantar-Nayestanaki95, M. Kavatsyuk96, W. Kuehn97, W. Lai98, J. S. Lange99, J. K. C. Leung100, C. H. Li101, Cheng Li102, Cui Li103, D. M. Li104, F. Li105, G. Li106, H. B. Li107, J. C. Li108, K. Li109, Lei Li110, N. B. Li111, Q. J. Li112, S. L. Li113, W. D. Li114, W. G. Li115, X. L. Li116, X. N. Li117, X. Q. Li118, X. R. Li119, Z. B. Li120, H. Liang121, Y. F. Liang122, Y. T. Liang123, G. R. Liao124, X. T. Liao125, B. J. Liu126, B. J. Liu127, C. L. Liu128, C. X. Liu129, C. Y. Liu130, F. H. Liu131, Fang Liu132, Feng Liu133, H. Liu134, H. B. Liu135, H. H. Liu136, H. M. Liu137, H. W. Liu138, J. P. Liu139, Kun Liu140, Kai Liu141, K. Y. Liu142, P. L. Liu143, S. B. Liu144, X. Liu145, X. H. Liu146, Y. B. Liu147, Y. Liu148, Z. A. Liu149, Zhiqiang Liu150, Zhiqing Liu151, H. Loehner152, G. R. Lu153, H. J. Lu154, J. G. Lu155, Q. W. Lu156, X. R. Lu157, Y. P. Lu158, C. L. Luo159, M. X. Luo160, T. Luo161, X. L. Luo162, M. Lv163, C. L. Ma164, F. C. Ma165, H. L. Ma166, Q. M. Ma167, S. Ma168, T. Ma169, X. Y. Ma170, Y. Ma171, F. E. Maas172, M. Maggiora173, Q. A. Malik174, H. Mao175, Y. J. Mao176, Z. P. Mao177, J. G. Messchendorp178, J. Min179, T. J. Min180, R. E. Mitchell181, X. H. Mo182, C. Morales Morales183, C. Motzko184, N. Yu. Muchnoi185, Y. Nefedov186, C. Nicholson187, I. B. Nikolaev188, Z. Ning189, S. L. Olsen190, Q. Ouyang191, S. P. Pacetti192, J. W. Park193, M. Pelizaeus194, K. Peters195, J. L. Ping196, R. G. Ping197, R. Poling198, E. Prencipe199, C. S. J. Pun200, M. Qi201, S. Qian202, C. F. Qiao203, X. S. Qin204, Y. Qin205, Z. H. Qin206, J. F. Qiu207, K. H. Rashid208, G. Rong209, X. D. Ruan210, A. Sarantsev211, J. Schulze212, M. Shao213, C. P. Shen214, X. Y. Shen215, H. Y. Sheng216, M. R. Shepherd217, X. Y. Song218, S. Spataro219, B. Spruck220, D. H. Sun221, G. X. Sun222, J. F. Sun223, S. S. Sun224, X. D. Sun225, Y. J. Sun226, Y. Z. Sun227, Z. J. Sun228, Z. T. Sun229, C. J. Tang230, X. Tang231, E. H. Thorndike232, H. L. Tian233, D. Toth234, M. U. Ulrich235, G. S. Varner236, B. Wang237, B. Q. Wang238, K. Wang239, L. L. Wang240, L. S. Wang241, M. Wang242, P. Wang243, P. L. Wang244, Q. Wang245, Q. J. Wang246, S. G. Wang247, X. F. Wang248, X. L. Wang249, Y. D. Wang250, Y. F. Wang251, Y. Q. Wang252, Z. Wang253, Z. G. Wang254, Z. Y. Wang255, D. H. Wei256, P. Weidenkaff257, Q. G. Wen258, S. P. Wen259, M. W. Werner260, U. Wiedner261, L. H. Wu262, N. Wu263, S. X. Wu264, W. Wu265, Z. Wu266, L. G. Xia267, Z. J. Xiao268, Y. G. Xie269, Q. L. Xiu270, G. F. Xu271, G. M. Xu272, H. Xu273, Q. J. Xu274, X. P. Xu275, Y. Xu276, Z. R. Xu277, F. Xue278, Z. Xue279, L. Yan280, W. B. Yan281, Y. H. Yan282, H. X. Yang283, T. Yang284, Y. Yang285, Y. X. Yang286, H. Ye287, M. Ye288, M. H. Ye289, B. X. Yu290, C. X. Yu291, J. S. Yu292, S. P. Yu293, C. Z. Yuan294, W. L. Yuan295, Y. Yuan296, A. A. Zafar297, A. Z. Zallo298, Y. Zeng299, B. X. Zhang300, B. Y. Zhang301, C. C. Zhang302, D. H. Zhang303, H. H. Zhang304, H. Y. Zhang305, J. Zhang306, J. G. Zhang307, J. Q. Zhang308, J. W. Zhang309, J. Y. Zhang310, J. Z. Zhang311, L. Zhang312, S. H. Zhang313, T. R. Zhang314, X. J. Zhang315, X. Y. Zhang316, Y. Zhang317, Y. H. Zhang318, Y. S. Zhang319, Z. P. Zhang320, Z. Y. Zhang321, G. Zhao322, H. S. Zhao323, J. W. Zhao324, K. X. Zhao325, Lei Zhao326, Ling Zhao327, M. G. Zhao328, Q. Zhao329, S. J. Zhao330, T. C. Zhao331, X. H. Zhao332, Y. B. Zhao333, Z. G. Zhao334, A. Zhemchugov335, B. Zheng336, J. P. Zheng337, Y. H. Zheng338, Z. P. Zheng339, B. Zhong340, J. Zhong341, L. Zhou342, X. K. Zhou343, X. R. Zhou344, C. Zhu345, K. Zhu346, K. J. Zhu347, S. H. Zhu348, X. L. Zhu349, X. W. Zhu350, Y. M. Zhu351, Y. S. Zhu352, Z. A. Zhu353, J. Zhuang354, B. S. Zou355, J. H. Zou356, J. X. Zuo357
Affiliations: 1Institute of High Energy Physics, Beijing, P. R. China, 2G.I. Budker Institute of Nuclear Physics SB RAS, 3University of Rochester, Rochester, New York, USA, 4Institute of High Energy Physics, Beijing, P. R. China, 5University of Science and Technology of China, Hefei, P. R. China, 6Institute of High Energy Physics, Beijing, P. R. China, 7Institute of High Energy Physics, Beijing, P. R. China, 8INFN Laboratori Nazionali di Frascati, Frascati, Italy, 9Peking University, Beijing, P. R. China, 10Bochum Ruhr-University, Bochum, Germany, 11Institute of High Energy Physics, Beijing, P. R. China, 12INFN Laboratori Nazionali di Frascati, Frascati, Italy, 13University of Minnesota, Minneapolis, MN, USA, 1420, a, 15KVI/University of Groningen, Groningen, The Netherlands, 16Joint Institute for Nuclear Research, Dubna, Russia, 17Carnegie Mellon University, Pittsburgh, PA, USA, 18Joint Institute for Nuclear Research, Dubna, Russia, 19Institute of High Energy Physics, Beijing, P. R. China, 20INFN Laboratori Nazionali di Frascati, Frascati, Italy, 21Institute of High Energy Physics, Beijing, P. R. China, 22Institute of High Energy Physics, Beijing, P. R. China, 2320, a, 24Institute of High Energy Physics, Beijing, P. R. China, 25Institute of High Energy Physics, Beijing, P. R. China, 26Institute of High Energy Physics, Beijing, P. R. China, 27Institute of High Energy Physics, Beijing, P. R. China, 28Nanjing University, Nanjing, P. R. China, 29Institute of High Energy Physics, Beijing, P. R. China, 30Institute of High Energy Physics, Beijing, P. R. China, 31Huangshan College, Huangshan, P. R. China, 32Institute of High Energy Physics, Beijing, P. R. China, 33University of Minnesota, Minneapolis, MN, USA, 34Institute of High Energy Physics, Beijing, P. R. China, 35Institute of High Energy Physics, Beijing, P. R. China, 36Joint Institute for Nuclear Research, Dubna, Russia, 37Institute of High Energy Physics, Beijing, P. R. China, 38Johannes Gutenberg University of Mainz, Mainz, Germany, 3920, b, 40University of Turin and INFN, Turin, Italy, 41Shandong University, Jinan, P. R. China, 42Liaoning University, Shenyang, P. R. China, 43Institute of High Energy Physics, Beijing, P. R. China, 44Institute of High Energy Physics, Beijing, P. R. China, 45Zhengzhou University, Zhengzhou, P. R. China, 46Institute of High Energy Physics, Beijing, P. R. China, 47Institute of High Energy Physics, Beijing, P. R. China, 4844, c, 49Bochum Ruhr-University, Bochum, Germany, 50University of Science and Technology of China, Hefei, P. R. China, 51Institute of High Energy Physics, Beijing, P. R. China, 52Nanjing University, Nanjing, P. R. China, 53Tsinghua University, Beijing, P. R. China, 54University of Science and Technology of China, Hefei, P. R. China, 55GSI Helmholtzcentre for Heavy Ion Research GmbH, Darmstadt, Germany, 56Institute of High Energy Physics, Beijing, P. R. China, 57Johannes Gutenberg University of Mainz, Mainz, Germany, 58University of Turin and INFN, Turin, Italy, 59Institute of High Energy Physics, Beijing, P. R. China, 60GuangXi University, Nanning, P.R.China, 61Graduate University of Chinese Academy of Sciences, Beijing, P. R. China, 62Nankai University, Tianjin, P. R. China, 63Nanjing Normal University, Nanjing, P. R. China, 64Nankai University, Tianjin, P. R. China, 65Institute of High Energy Physics, Beijing, P. R. China, 66Institute of High Energy Physics, Beijing, P. R. China, 67University of Hawaii, Honolulu, Hawaii, USA, 68Institute of High Energy Physics, Beijing, P. R. China, 69Institute of High Energy Physics, Beijing, P. R. China, 70Nankai University, Tianjin, P. R. China, 71Bochum Ruhr-University, Bochum, Germany, 72Institute of High Energy Physics, Beijing, P. R. China, 73Institute of High Energy Physics, Beijing, P. R. China, 74Institute of High Energy Physics, Beijing, P. R. China, 75Graduate University of Chinese Academy of Sciences, Beijing, P. R. China, 76Institute of High Energy Physics, Beijing, P. R. China, 77Institute of High Energy Physics, Beijing, P. R. China, 78Huazhong Normal University, Wuhan, P. R. China, 79Henan Normal University, Xinxiang, P. R. China, 80Shandong University, Jinan, P. R. China, 81Institute of High Energy Physics, Beijing, P. R. China, 82University of the Punjab, Lahore, Pakistan, 83University of Science and Technology of China, Hefei, P. R. China, 84Institute of High Energy Physics, Beijing, P. R. China, 85Institute of High Energy Physics, Beijing, P. R. China, 86Institute of High Energy Physics, Beijing, P. R. China, 87Institute of High Energy Physics, Beijing, P. R. China, 88Institute of High Energy Physics, Beijing, P. R. China, 89Institute of High Energy Physics, Beijing, P. R. China, 90Shandong University, Jinan, P. R. China, 91Huangshan College, Huangshan, P. R. China, 92Institute of High Energy Physics, Beijing, P. R. China, 93Institute of High Energy Physics, Beijing, P. R. China, 94Tsinghua University, Beijing, P. R. China, 95KVI/University of Groningen, Groningen, The Netherlands, 96KVI/University of Groningen, Groningen, The Netherlands, 97Universitaet Giessen, Giessen, Germany, 98Institute of High Energy Physics, Beijing, P. R. China, 99Universitaet Giessen, Giessen, Germany, 100The University of Hong Kong, Pokfulam, Hong Kong, 101Institute of High Energy Physics, Beijing, P. R. China, 102University of Science and Technology of China, Hefei, P. R. China, 103University of Science and Technology of China, Hefei, P. R. China, 104Zhengzhou University, Zhengzhou, P. R. China, 105Institute of High Energy Physics, Beijing, P. R. China, 106Institute of High Energy Physics, Beijing, P. R. China, 107Institute of High Energy Physics, Beijing, P. R. China, 108Institute of High Energy Physics, Beijing, P. R. China, 109Hangzhou Normal University, Hangzhou, P. R. China, 110Institute of High Energy Physics, Beijing, P. R. China, 111Nanjing Normal University, Nanjing, P. R. China, 112Institute of High Energy Physics, Beijing, P. R. China, 113Institute of High Energy Physics, Beijing, P. R. China, 114Institute of High Energy Physics, Beijing, P. R. China, 115Institute of High Energy Physics, Beijing, P. R. China, 116Shandong University, Jinan, P. R. China, 117Institute of High Energy Physics, Beijing, P. R. China, 118Nankai University, Tianjin, P. R. China, 119Seoul National University, Seoul, Korea, 120Sun Yat-Sen University, Guangzhou, P. R. China, 121University of Science and Technology of China, Hefei, P. R. China, 122Sichuan University, Chengdu, P. R. China, 123Universitaet Giessen, Giessen, Germany, 124Tsinghua University, Beijing, P. R. China, 125Institute of High Energy Physics, Beijing, P. R. China, 126Institute of High Energy Physics, Beijing, P. R. China, 127Institute of High Energy Physics, Beijing, P. R. China, 128Carnegie Mellon University, Pittsburgh, PA, USA, 129Institute of High Energy Physics, Beijing, P. R. China, 130Institute of High Energy Physics, Beijing, P. R. China, 131Shanxi University, Taiyuan, P. R. China, 132Institute of High Energy Physics, Beijing, P. R. China, 133Huazhong Normal University, Wuhan, P. R. China, 134Shanxi University, Taiyuan, P. R. China, 135Graduate University of Chinese Academy of Sciences, Beijing, P. R. China, 136Henan University of Science and Technology, Luoyang, P. R. China, 137Institute of High Energy Physics, Beijing, P. R. China, 138Institute of High Energy Physics, Beijing, P. R. China, 139Wuhan University, Wuhan, P. R. China, 140Peking University, Beijing, P. R. China, 141Graduate University of Chinese Academy of Sciences, Beijing, P. R. China, 142Liaoning University, Shenyang, P. R. China, 143Shandong University, Jinan, P. R. China, 144University of Science and Technology of China, Hefei, P. R. China, 145Institute of High Energy Physics, Beijing, P. R. China, 146Institute of High Energy Physics, Beijing, P. R. China, 147Nankai University, Tianjin, P. R. China, 148Institute of High Energy Physics, Beijing, P. R. China, 149Institute of High Energy Physics, Beijing, P. R. China, 150Institute of High Energy Physics, Beijing, P. R. China, 151Institute of High Energy Physics, Beijing, P. R. China, 152KVI/University of Groningen, Groningen, The Netherlands, 153Henan Normal University, Xinxiang, P. R. China, 154Huangshan College, Huangshan, P. R. China, 155Institute of High Energy Physics, Beijing, P. R. China, 156Shanxi University, Taiyuan, P. R. China, 157Graduate University of Chinese Academy of Sciences, Beijing, P. R. China, 158Institute of High Energy Physics, Beijing, P. R. China, 159Nanjing Normal University, Nanjing, P. R. China, 160Zhejiang University, Hangzhou, P. R. China, 161University of Hawaii, Honolulu, Hawaii, USA, 162Institute of High Energy Physics, Beijing, P. R. China, 163Institute of High Energy Physics, Beijing, P. R. China, 164Graduate University of Chinese Academy of Sciences, Beijing, P. R. China, 165Liaoning University, Shenyang, P. R. China, 166Institute of High Energy Physics, Beijing, P. R. China, 167Institute of High Energy Physics, Beijing, P. R. China, 168Institute of High Energy Physics, Beijing, P. R. China, 169Institute of High Energy Physics, Beijing, P. R. China, 170Institute of High Energy Physics, Beijing, P. R. China, 171Institute of High Energy Physics, Beijing, P. R. China, 172Helmholtz Institute Mainz, Mainz, Germany, 173University of Turin and INFN, Turin, Italy, 174University of the Punjab, Lahore, Pakistan, 175Institute of High Energy Physics, Beijing, P. R. China, 176Peking University, Beijing, P. R. China, 177Institute of High Energy Physics, Beijing, P. R. China, 178KVI/University of Groningen, Groningen, The Netherlands, 179Institute of High Energy Physics, Beijing, P. R. China, 180Institute of High Energy Physics, Beijing, P. R. China, 181Indiana University, Bloomington, Indiana, USA, 182Institute of High Energy Physics, Beijing, P. R. China, 183Helmholtz Institute Mainz, Mainz, Germany, 184Bochum Ruhr-University, Bochum, Germany, 185G.I. Budker Institute of Nuclear Physics SB RAS, 186Joint Institute for Nuclear Research, Dubna, Russia, 187Graduate University of Chinese Academy of Sciences, Beijing, P. R. China, 188G.I. Budker Institute of Nuclear Physics SB RAS, 189Institute of High Energy Physics, Beijing, P. R. China, 190Seoul National University, Seoul, Korea, 191Institute of High Energy Physics, Beijing, P. R. China, 19218, d, 193Seoul National University, Seoul, Korea, 194University of Hawaii, Honolulu, Hawaii, USA, 195GSI Helmholtzcentre for Heavy Ion Research GmbH, Darmstadt, Germany, 196Nanjing Normal University, Nanjing, P. R. China, 197Institute of High Energy Physics, Beijing, P. R. China, 198University of Minnesota, Minneapolis, MN, USA, 199Johannes Gutenberg University of Mainz, Mainz, Germany, 200The University of Hong Kong, Pokfulam, Hong Kong, 201Nanjing University, Nanjing, P. R. China, 202Institute of High Energy Physics, Beijing, P. R. China, 203Graduate University of Chinese Academy of Sciences, Beijing, P. R. China, 204Institute of High Energy Physics, Beijing, P. R. China, 205Peking University, Beijing, P. R. China, 206Institute of High Energy Physics, Beijing, P. R. China, 207Institute of High Energy Physics, Beijing, P. R. China, 208University of the Punjab, Lahore, Pakistan, 209Institute of High Energy Physics, Beijing, P. R. China, 210GuangXi University, Nanning, P.R.China, 21120, e, 212Bochum Ruhr-University, Bochum, Germany, 213University of Science and Technology of China, Hefei, P. R. China, 21438, f, 215Institute of High Energy Physics, Beijing, P. R. China, 216Institute of High Energy Physics, Beijing, P. R. China, 217Indiana University, Bloomington, Indiana, USA, 218Institute of High Energy Physics, Beijing, P. R. China, 219University of Turin and INFN, Turin, Italy, 220Universitaet Giessen, Giessen, Germany, 221Institute of High Energy Physics, Beijing, P. R. China, 222Institute of High Energy Physics, Beijing, P. R. China, 223Henan Normal University, Xinxiang, P. R. China, 224Institute of High Energy Physics, Beijing, P. R. China, 225Institute of High Energy Physics, Beijing, P. R. China, 226University of Science and Technology of China, Hefei, P. R. China, 227Institute of High Energy Physics, Beijing, P. R. China, 228Institute of High Energy Physics, Beijing, P. R. China, 229University of Science and Technology of China, Hefei, P. R. China, 230Sichuan University, Chengdu, P. R. China, 231Institute of High Energy Physics, Beijing, P. R. China, 232University of Rochester, Rochester, New York, USA, 233Institute of High Energy Physics, Beijing, P. R. China, 234University of Minnesota, Minneapolis, MN, USA, 235Universitaet Giessen, Giessen, Germany, 236University of Hawaii, Honolulu, Hawaii, USA, 237GuangXi University, Nanning, P.R.China, 238Peking University, Beijing, P. R. China, 239Institute of High Energy Physics, Beijing, P. R. China, 240China Center of Advanced Science and Technology, Beijing, P. R. China, 241Institute of High Energy Physics, Beijing, P. R. China, 242Shandong University, Jinan, P. R. China, 243Institute of High Energy Physics, Beijing, P. R. China, 244Institute of High Energy Physics, Beijing, P. R. China, 245Peking University, Beijing, P. R. China, 246Institute of High Energy Physics, Beijing, P. R. China, 247Peking University, Beijing, P. R. China, 248Henan Normal University, Xinxiang, P. R. China, 249University of Science and Technology of China, Hefei, P. R. China, 250University of Science and Technology of China, Hefei, P. R. China, 251Institute of High Energy Physics, Beijing, P. R. China, 252Shandong University, Jinan, P. R. China, 253Institute of High Energy Physics, Beijing, P. R. China, 254Institute of High Energy Physics, Beijing, P. R. China, 255Institute of High Energy Physics, Beijing, P. R. China, 256Guangxi Normal University, Guilin, P. R. China, 257Johannes Gutenberg University of Mainz, Mainz, Germany, 258University of Science and Technology of China, Hefei, P. R. China, 259Institute of High Energy Physics, Beijing, P. R. China, 260Universitaet Giessen, Giessen, Germany, 261Bochum Ruhr-University, Bochum, Germany, 262Institute of High Energy Physics, Beijing, P. R. China, 263Institute of High Energy Physics, Beijing, P. R. China, 264University of Science and Technology of China, Hefei, P. R. China, 265Nankai University, Tianjin, P. R. China, 266Institute of High Energy Physics, Beijing, P. R. China, 267Tsinghua University, Beijing, P. R. China, 268Nanjing Normal University, Nanjing, P. R. China, 269Institute of High Energy Physics, Beijing, P. R. China, 270Institute of High Energy Physics, Beijing, P. R. China, 271Institute of High Energy Physics, Beijing, P. R. China, 272Peking University, Beijing, P. R. China, 273Institute of High Energy Physics, Beijing, P. R. China, 274Hangzhou Normal University, Hangzhou, P. R. China, 275Soochow University, Suzhou, China, 276Nankai University, Tianjin, P. R. China, 277University of Science and Technology of China, Hefei, P. R. China, 278Huazhong Normal University, Wuhan, P. R. China, 279Institute of High Energy Physics, Beijing, P. R. China, 280University of Science and Technology of China, Hefei, P. R. China, 281University of Science and Technology of China, Hefei, P. R. China, 282Hunan University, Changsha, P. R. China, 283Institute of High Energy Physics, Beijing, P. R. China, 284GuangXi University, Nanning, P.R.China, 285Huazhong Normal University, Wuhan, P. R. China, 286Guangxi Normal University, Guilin, P. R. China, 287Institute of High Energy Physics, Beijing, P. R. China, 288Institute of High Energy Physics, Beijing, P. R. China, 289China Center of Advanced Science and Technology, Beijing, P. R. China, 290Institute of High Energy Physics, Beijing, P. R. China, 291Nankai University, Tianjin, P. R. China, 292Lanzhou University, Lanzhou, P. R. China, 293Shandong University, Jinan, P. R. China, 294Institute of High Energy Physics, Beijing, P. R. China, 295Nanjing Normal University, Nanjing, P. R. China, 296Institute of High Energy Physics, Beijing, P. R. China, 297University of the Punjab, Lahore, Pakistan, 298INFN Laboratori Nazionali di Frascati, Frascati, Italy, 299Hunan University, Changsha, P. R. China, 300Institute of High Energy Physics, Beijing, P. R. China, 301Institute of High Energy Physics, Beijing, P. R. China, 302Institute of High Energy Physics, Beijing, P. R. China, 303Institute of High Energy Physics, Beijing, P. R. China, 304Sun Yat-Sen University, Guangzhou, P. R. China, 305Institute of High Energy Physics, Beijing, P. R. China, 306Nanjing Normal University, Nanjing, P. R. China, 307Henan Normal University, Xinxiang, P. R. China, 308Institute of High Energy Physics, Beijing, P. R. China, 309Institute of High Energy Physics, Beijing, P. R. China, 310Institute of High Energy Physics, Beijing, P. R. China, 311Institute of High Energy Physics, Beijing, P. R. China, 312Nanjing University, Nanjing, P. R. China, 313Institute of High Energy Physics, Beijing, P. R. China, 314Nanjing Normal University, Nanjing, P. R. China, 315Institute of High Energy Physics, Beijing, P. R. China, 316Shandong University, Jinan, P. R. China, 317Institute of High Energy Physics, Beijing, P. R. China, 318Institute of High Energy Physics, Beijing, P. R. China, 319GuangXi University, Nanning, P.R.China, 320University of Science and Technology of China, Hefei, P. R. China, 321Wuhan University, Wuhan, P. R. China, 322Institute of High Energy Physics, Beijing, P. R. China, 323Institute of High Energy Physics, Beijing, P. R. China, 324Institute of High Energy Physics, Beijing, P. R. China, 325Nanjing Normal University, Nanjing, P. R. China, 326University of Science and Technology of China, Hefei, P. R. China, 327Institute of High Energy Physics, Beijing, P. R. China, 328Nankai University, Tianjin, P. R. China, 329Institute of High Energy Physics, Beijing, P. R. China, 330Zhengzhou University, Zhengzhou, P. R. China, 331Institute of High Energy Physics, Beijing, P. R. China, 332Nanjing University, Nanjing, P. R. China, 333Institute of High Energy Physics, Beijing, P. R. China, 334University of Science and Technology of China, Hefei, P. R. China, 33520, a, 336University of South China, Hengyang, P. R. China, 337Institute of High Energy Physics, Beijing, P. R. China, 338Graduate University of Chinese Academy of Sciences, Beijing, P. R. China, 339Institute of High Energy Physics, Beijing, P. R. China, 340Institute of High Energy Physics, Beijing, P. R. China, 341Bochum Ruhr-University, Bochum, Germany, 342Institute of High Energy Physics, Beijing, P. R. China, 343Graduate University of Chinese Academy of Sciences, Beijing, P. R. China, 344University of Science and Technology of China, Hefei, P. R. China, 345Institute of High Energy Physics, Beijing, P. R. China, 346Institute of High Energy Physics, Beijing, P. R. China, 347Institute of High Energy Physics, Beijing, P. R. China, 348Institute of High Energy Physics, Beijing, P. R. China, 349Tsinghua University, Beijing, P. R. China, 350Institute of High Energy Physics, Beijing, P. R. China, 351Nankai University, Tianjin, P. R. China, 352Institute of High Energy Physics, Beijing, P. R. China, 353Institute of High Energy Physics, Beijing, P. R. China, 354Institute of High Energy Physics, Beijing, P. R. China, 355Institute of High Energy Physics, Beijing, P. R. China, 356Institute of High Energy Physics, Beijing, P. R. China, 357Institute of High Energy Physics, Beijing, P. R. China

Based on a data sample of 106 M $\psi^{\prime}$ events collected with the BESIII detector, the decays $\psi^{\prime}\ar\gamma\chi_{c0, 2}$,$\chi_{c0, 2}\ar\gamma\gamma$ are studied to determine the two-photon widths of the $\chi_{c0, 2}$ states. The two-photon decay branching fractions are determined to be ${\cal B}(\chi_{c0}\ar\gamma\gamma) = (2.24\pm 0. Read More

2012May
Authors: BESIII Collaboration, M. Ablikim1, M. N. Achasov2, D. J. Ambrose3, F. F. An4, Q. An5, Z. H. An6, J. Z. Bai7, R. B. Ferroli8, Y. Ban9, J. Becker10, N. Berger11, M. B. Bertani12, J. M. Bian13, E. Boger14, O. Bondarenko15, I. Boyko16, R. A. Briere17, V. Bytev18, X. Cai19, A. C. Calcaterra20, G. F. Cao21, J. F. Chang22, G. Chelkov23, G. Chen24, H. S. Chen25, J. C. Chen26, M. L. Chen27, S. J. Chen28, Y. Chen29, Y. B. Chen30, H. P. Cheng31, Y. P. Chu32, D. Cronin-Hennessy33, H. L. Dai34, J. P. Dai35, D. Dedovich36, Z. Y. Deng37, A. Denig38, I. Denysenko39, M. Destefanis40, W. M. Ding41, Y. Ding42, L. Y. Dong43, M. Y. Dong44, S. X. Du45, J. Fang46, S. S. Fang47, L. Fava48, F. Feldbauer49, C. Q. Feng50, C. D. Fu51, J. L. Fu52, Y. Gao53, C. Geng54, K. Goetzen55, W. X. Gong56, W. Gradl57, M. Greco58, M. H. Gu59, Y. T. Gu60, Y. H. Guan61, A. Q. Guo62, L. B. Guo63, Y. P. Guo64, Y. L. Han65, X. Q. Hao66, F. A. Harris67, K. L. He68, M. He69, Z. Y. He70, T. Held71, Y. K. Heng72, Z. L. Hou73, H. M. Hu74, J. F. Hu75, T. Hu76, B. Huang77, G. M. Huang78, J. S. Huang79, X. T. Huang80, Y. P. Huang81, T. Hussain82, C. S. Ji83, Q. Ji84, X. B. Ji85, X. L. Ji86, L. K. Jia87, L. L. Jiang88, X. S. Jiang89, J. B. Jiao90, Z. Jiao91, D. P. Jin92, S. Jin93, F. F. Jing94, N. Kalantar-Nayestanaki95, M. Kavatsyuk96, W. Kuehn97, W. Lai98, J. S. Lange99, J. K. C. Leung100, C. H. Li101, Cheng Li102, Cui Li103, D. M. Li104, F. Li105, G. Li106, H. B. Li107, J. C. Li108, K. Li109, Lei Li110, N. B. Li111, Q. J. Li112, S. L. Li113, W. D. Li114, W. G. Li115, X. L. Li116, X. N. Li117, X. Q. Li118, X. R. Li119, Z. B. Li120, H. Liang121, Y. F. Liang122, Y. T. Liang123, G. R. Liao124, X. T. Liao125, B. J. Liu126, B. J. Liu127, C. L. Liu128, C. X. Liu129, C. Y. Liu130, F. H. Liu131, Fang Liu132, Feng Liu133, H. Liu134, H. B. Liu135, H. H. Liu136, H. M. Liu137, H. W. Liu138, J. P. Liu139, Kun Liu140, Kai Liu141, K. Y. Liu142, P. L. Liu143, S. B. Liu144, X. Liu145, X. H. Liu146, Y. B. Liu147, Y. Liu148, Z. A. Liu149, Zhiqiang Liu150, Zhiqing Liu151, H. Loehner152, G. R. Lu153, H. J. Lu154, J. G. Lu155, Q. W. Lu156, X. R. Lu157, Y. P. Lu158, C. L. Luo159, M. X. Luo160, T. Luo161, X. L. Luo162, M. Lv163, C. L. Ma164, F. C. Ma165, H. L. Ma166, Q. M. Ma167, S. Ma168, T. Ma169, X. Y. Ma170, Y. Ma171, F. E. Maas172, M. Maggiora173, Q. A. Malik174, H. Mao175, Y. J. Mao176, Z. P. Mao177, J. G. Messchendorp178, J. Min179, T. J. Min180, R. E. Mitchell181, X. H. Mo182, C. Morales Morales183, C. Motzko184, N. Yu. Muchnoi185, Y. Nefedov186, C. Nicholson187, I. B. Nikolaev188, Z. Ning189, S. L. Olsen190, Q. Ouyang191, S. P. Pacetti192, J. W. Park193, M. Pelizaeus194, K. Peters195, J. L. Ping196, R. G. Ping197, R. Poling198, E. Prencipe199, C. S. J. Pun200, M. Qi201, S. Qian202, C. F. Qiao203, X. S. Qin204, Y. Qin205, Z. H. Qin206, J. F. Qiu207, K. H. Rashid208, G. Rong209, X. D. Ruan210, A. Sarantsev211, J. Schulze212, M. Shao213, C. P. Shen214, X. Y. Shen215, H. Y. Sheng216, M. R. Shepherd217, X. Y. Song218, S. Spataro219, B. Spruck220, D. H. Sun221, G. X. Sun222, J. F. Sun223, S. S. Sun224, X. D. Sun225, Y. J. Sun226, Y. Z. Sun227, Z. J. Sun228, Z. T. Sun229, C. J. Tang230, X. Tang231, E. H. Thorndike232, H. L. Tian233, D. Toth234, M. U. Ulrich235, G. S. Varner236, B. Wang237, B. Q. Wang238, K. Wang239, L. L. Wang240, L. S. Wang241, M. Wang242, P. Wang243, P. L. Wang244, Q. Wang245, Q. J. Wang246, S. G. Wang247, X. F. Wang248, X. L. Wang249, Y. D. Wang250, Y. F. Wang251, Y. Q. Wang252, Z. Wang253, Z. G. Wang254, Z. Y. Wang255, D. H. Wei256, P. Weidenkaff257, Q. G. Wen258, S. P. Wen259, M. W. Werner260, U. Wiedner261, L. H. Wu262, N. Wu263, S. X. Wu264, W. Wu265, Z. Wu266, L. G. Xia267, Z. J. Xiao268, Y. G. Xie269, Q. L. Xiu270, G. F. Xu271, G. M. Xu272, H. Xu273, Q. J. Xu274, X. P. Xu275, Y. Xu276, Z. R. Xu277, F. Xue278, Z. Xue279, L. Yan280, W. B. Yan281, Y. H. Yan282, H. X. Yang283, T. Yang284, Y. Yang285, Y. X. Yang286, H. Ye287, M. Ye288, M. H. Ye289, B. X. Yu290, C. X. Yu291, J. S. Yu292, S. P. Yu293, C. Z. Yuan294, W. L. Yuan295, Y. Yuan296, A. A. Zafar297, A. Z. Zallo298, Y. Zeng299, B. X. Zhang300, B. Y. Zhang301, C. C. Zhang302, D. H. Zhang303, H. H. Zhang304, H. Y. Zhang305, J. Zhang306, J. G. Zhang307, J. Q. Zhang308, J. W. Zhang309, J. Y. Zhang310, J. Z. Zhang311, L. Zhang312, S. H. Zhang313, T. R. Zhang314, X. J. Zhang315, X. Y. Zhang316, Y. Zhang317, Y. H. Zhang318, Y. S. Zhang319, Z. P. Zhang320, Z. Y. Zhang321, G. Zhao322, H. S. Zhao323, J. W. Zhao324, K. X. Zhao325, Lei Zhao326, Ling Zhao327, M. G. Zhao328, Q. Zhao329, S. J. Zhao330, T. C. Zhao331, X. H. Zhao332, Y. B. Zhao333, Z. G. Zhao334, A. Zhemchugov335, B. Zheng336, J. P. Zheng337, Y. H. Zheng338, Z. P. Zheng339, B. Zhong340, J. Zhong341, L. Zhou342, X. K. Zhou343, X. R. Zhou344, C. Zhu345, K. Zhu346, K. J. Zhu347, S. H. Zhu348, X. L. Zhu349, X. W. Zhu350, Y. M. Zhu351, Y. S. Zhu352, Z. A. Zhu353, J. Zhuang354, B. S. Zou355, J. H. Zou356, J. X. Zuo357
Affiliations: 1Institute of High Energy Physics, Beijing, P. R. China, 2G.I. Budker Institute of Nuclear Physics SB RAS, 3University of Rochester, Rochester, New York, USA, 4Institute of High Energy Physics, Beijing, P. R. China, 5University of Science and Technology of China, Hefei, P. R. China, 6Institute of High Energy Physics, Beijing, P. R. China, 7Institute of High Energy Physics, Beijing, P. R. China, 8INFN Laboratori Nazionali di Frascati, Frascati, Italy, 9Peking University, Beijing, P. R. China, 10Bochum Ruhr-University, Bochum, Germany, 11Institute of High Energy Physics, Beijing, P. R. China, 12INFN Laboratori Nazionali di Frascati, Frascati, Italy, 13University of Minnesota, Minneapolis, MN, USA, 1420, a, 15KVI/University of Groningen, Groningen, The Netherlands, 16Joint Institute for Nuclear Research, Dubna, Russia, 17Carnegie Mellon University, Pittsburgh, PA, USA, 18Joint Institute for Nuclear Research, Dubna, Russia, 19Institute of High Energy Physics, Beijing, P. R. China, 20INFN Laboratori Nazionali di Frascati, Frascati, Italy, 21Institute of High Energy Physics, Beijing, P. R. China, 22Institute of High Energy Physics, Beijing, P. R. China, 2320, a, 24Institute of High Energy Physics, Beijing, P. R. China, 25Institute of High Energy Physics, Beijing, P. R. China, 26Institute of High Energy Physics, Beijing, P. R. China, 27Institute of High Energy Physics, Beijing, P. R. China, 28Nanjing University, Nanjing, P. R. China, 29Institute of High Energy Physics, Beijing, P. R. China, 30Institute of High Energy Physics, Beijing, P. R. China, 31Huangshan College, Huangshan, P. R. China, 32Institute of High Energy Physics, Beijing, P. R. China, 33University of Minnesota, Minneapolis, MN, USA, 34Institute of High Energy Physics, Beijing, P. R. China, 35Institute of High Energy Physics, Beijing, P. R. China, 36Joint Institute for Nuclear Research, Dubna, Russia, 37Institute of High Energy Physics, Beijing, P. R. China, 38Johannes Gutenberg University of Mainz, Mainz, Germany, 3920, b, 40University of Turin and INFN, Turin, Italy, 41Shandong University, Jinan, P. R. China, 42Liaoning University, Shenyang, P. R. China, 43Institute of High Energy Physics, Beijing, P. R. China, 44Institute of High Energy Physics, Beijing, P. R. China, 45Zhengzhou University, Zhengzhou, P. R. China, 46Institute of High Energy Physics, Beijing, P. R. China, 47Institute of High Energy Physics, Beijing, P. R. China, 4844, c, 49Bochum Ruhr-University, Bochum, Germany, 50University of Science and Technology of China, Hefei, P. R. China, 51Institute of High Energy Physics, Beijing, P. R. China, 52Nanjing University, Nanjing, P. R. China, 53Tsinghua University, Beijing, P. R. China, 54University of Science and Technology of China, Hefei, P. R. China, 55GSI Helmholtzcentre for Heavy Ion Research GmbH, Darmstadt, Germany, 56Institute of High Energy Physics, Beijing, P. R. China, 57Johannes Gutenberg University of Mainz, Mainz, Germany, 58University of Turin and INFN, Turin, Italy, 59Institute of High Energy Physics, Beijing, P. R. China, 60GuangXi University, Nanning, P.R.China, 61Graduate University of Chinese Academy of Sciences, Beijing, P. R. China, 62Nankai University, Tianjin, P. R. China, 63Nanjing Normal University, Nanjing, P. R. China, 64Nankai University, Tianjin, P. R. China, 65Institute of High Energy Physics, Beijing, P. R. China, 66Institute of High Energy Physics, Beijing, P. R. China, 67University of Hawaii, Honolulu, Hawaii, USA, 68Institute of High Energy Physics, Beijing, P. R. China, 69Institute of High Energy Physics, Beijing, P. R. China, 70Nankai University, Tianjin, P. R. China, 71Bochum Ruhr-University, Bochum, Germany, 72Institute of High Energy Physics, Beijing, P. R. China, 73Institute of High Energy Physics, Beijing, P. R. China, 74Institute of High Energy Physics, Beijing, P. R. China, 75Graduate University of Chinese Academy of Sciences, Beijing, P. R. China, 76Institute of High Energy Physics, Beijing, P. R. China, 77Institute of High Energy Physics, Beijing, P. R. China, 78Huazhong Normal University, Wuhan, P. R. China, 79Henan Normal University, Xinxiang, P. R. China, 80Shandong University, Jinan, P. R. China, 81Institute of High Energy Physics, Beijing, P. R. China, 82University of the Punjab, Lahore, Pakistan, 83University of Science and Technology of China, Hefei, P. R. China, 84Institute of High Energy Physics, Beijing, P. R. China, 85Institute of High Energy Physics, Beijing, P. R. China, 86Institute of High Energy Physics, Beijing, P. R. China, 87Institute of High Energy Physics, Beijing, P. R. China, 88Institute of High Energy Physics, Beijing, P. R. China, 89Institute of High Energy Physics, Beijing, P. R. China, 90Shandong University, Jinan, P. R. China, 91Huangshan College, Huangshan, P. R. China, 92Institute of High Energy Physics, Beijing, P. R. China, 93Institute of High Energy Physics, Beijing, P. R. China, 94Tsinghua University, Beijing, P. R. China, 95KVI/University of Groningen, Groningen, The Netherlands, 96KVI/University of Groningen, Groningen, The Netherlands, 97Universitaet Giessen, Giessen, Germany, 98Institute of High Energy Physics, Beijing, P. R. China, 99Universitaet Giessen, Giessen, Germany, 100The University of Hong Kong, Pokfulam, Hong Kong, 101Institute of High Energy Physics, Beijing, P. R. China, 102University of Science and Technology of China, Hefei, P. R. China, 103University of Science and Technology of China, Hefei, P. R. China, 104Zhengzhou University, Zhengzhou, P. R. China, 105Institute of High Energy Physics, Beijing, P. R. China, 106Institute of High Energy Physics, Beijing, P. R. China, 107Institute of High Energy Physics, Beijing, P. R. China, 108Institute of High Energy Physics, Beijing, P. R. China, 109Hangzhou Normal University, Hangzhou, P. R. China, 110Institute of High Energy Physics, Beijing, P. R. China, 111Nanjing Normal University, Nanjing, P. R. China, 112Institute of High Energy Physics, Beijing, P. R. China, 113Institute of High Energy Physics, Beijing, P. R. China, 114Institute of High Energy Physics, Beijing, P. R. China, 115Institute of High Energy Physics, Beijing, P. R. China, 116Shandong University, Jinan, P. R. China, 117Institute of High Energy Physics, Beijing, P. R. China, 118Nankai University, Tianjin, P. R. China, 119Seoul National University, Seoul, Korea, 120Sun Yat-Sen University, Guangzhou, P. R. China, 121University of Science and Technology of China, Hefei, P. R. China, 122Sichuan University, Chengdu, P. R. China, 123Universitaet Giessen, Giessen, Germany, 124Tsinghua University, Beijing, P. R. China, 125Institute of High Energy Physics, Beijing, P. R. China, 126Institute of High Energy Physics, Beijing, P. R. China, 127Institute of High Energy Physics, Beijing, P. R. China, 128Carnegie Mellon University, Pittsburgh, PA, USA, 129Institute of High Energy Physics, Beijing, P. R. China, 130Institute of High Energy Physics, Beijing, P. R. China, 131Shanxi University, Taiyuan, P. R. China, 132Institute of High Energy Physics, Beijing, P. R. China, 133Huazhong Normal University, Wuhan, P. R. China, 134Shanxi University, Taiyuan, P. R. China, 135Graduate University of Chinese Academy of Sciences, Beijing, P. R. China, 136Henan University of Science and Technology, Luoyang, P. R. China, 137Institute of High Energy Physics, Beijing, P. R. China, 138Institute of High Energy Physics, Beijing, P. R. China, 139Wuhan University, Wuhan, P. R. China, 140Peking University, Beijing, P. R. China, 141Graduate University of Chinese Academy of Sciences, Beijing, P. R. China, 142Liaoning University, Shenyang, P. R. China, 143Shandong University, Jinan, P. R. China, 144University of Science and Technology of China, Hefei, P. R. China, 145Institute of High Energy Physics, Beijing, P. R. China, 146Institute of High Energy Physics, Beijing, P. R. China, 147Nankai University, Tianjin, P. R. China, 148Institute of High Energy Physics, Beijing, P. R. China, 149Institute of High Energy Physics, Beijing, P. R. China, 150Institute of High Energy Physics, Beijing, P. R. China, 151Institute of High Energy Physics, Beijing, P. R. China, 152KVI/University of Groningen, Groningen, The Netherlands, 153Henan Normal University, Xinxiang, P. R. China, 154Huangshan College, Huangshan, P. R. China, 155Institute of High Energy Physics, Beijing, P. R. China, 156Shanxi University, Taiyuan, P. R. China, 157Graduate University of Chinese Academy of Sciences, Beijing, P. R. China, 158Institute of High Energy Physics, Beijing, P. R. China, 159Nanjing Normal University, Nanjing, P. R. China, 160Zhejiang University, Hangzhou, P. R. China, 161University of Hawaii, Honolulu, Hawaii, USA, 162Institute of High Energy Physics, Beijing, P. R. China, 163Institute of High Energy Physics, Beijing, P. R. China, 164Graduate University of Chinese Academy of Sciences, Beijing, P. R. China, 165Liaoning University, Shenyang, P. R. China, 166Institute of High Energy Physics, Beijing, P. R. China, 167Institute of High Energy Physics, Beijing, P. R. China, 168Institute of High Energy Physics, Beijing, P. R. China, 169Institute of High Energy Physics, Beijing, P. R. China, 170Institute of High Energy Physics, Beijing, P. R. China, 171Institute of High Energy Physics, Beijing, P. R. China, 172Helmholtz Institute Mainz, Mainz, Germany, 173University of Turin and INFN, Turin, Italy, 174University of the Punjab, Lahore, Pakistan, 175Institute of High Energy Physics, Beijing, P. R. China, 176Peking University, Beijing, P. R. China, 177Institute of High Energy Physics, Beijing, P. R. China, 178KVI/University of Groningen, Groningen, The Netherlands, 179Institute of High Energy Physics, Beijing, P. R. China, 180Institute of High Energy Physics, Beijing, P. R. China, 181Indiana University, Bloomington, Indiana, USA, 182Institute of High Energy Physics, Beijing, P. R. China, 183Helmholtz Institute Mainz, Mainz, Germany, 184Bochum Ruhr-University, Bochum, Germany, 185G.I. Budker Institute of Nuclear Physics SB RAS, 186Joint Institute for Nuclear Research, Dubna, Russia, 187Graduate University of Chinese Academy of Sciences, Beijing, P. R. China, 188G.I. Budker Institute of Nuclear Physics SB RAS, 189Institute of High Energy Physics, Beijing, P. R. China, 190Seoul National University, Seoul, Korea, 191Institute of High Energy Physics, Beijing, P. R. China, 19218, d, 193Seoul National University, Seoul, Korea, 194University of Hawaii, Honolulu, Hawaii, USA, 195GSI Helmholtzcentre for Heavy Ion Research GmbH, Darmstadt, Germany, 196Nanjing Normal University, Nanjing, P. R. China, 197Institute of High Energy Physics, Beijing, P. R. China, 198University of Minnesota, Minneapolis, MN, USA, 199Johannes Gutenberg University of Mainz, Mainz, Germany, 200The University of Hong Kong, Pokfulam, Hong Kong, 201Nanjing University, Nanjing, P. R. China, 202Institute of High Energy Physics, Beijing, P. R. China, 203Graduate University of Chinese Academy of Sciences, Beijing, P. R. China, 204Institute of High Energy Physics, Beijing, P. R. China, 205Peking University, Beijing, P. R. China, 206Institute of High Energy Physics, Beijing, P. R. China, 207Institute of High Energy Physics, Beijing, P. R. China, 208University of the Punjab, Lahore, Pakistan, 209Institute of High Energy Physics, Beijing, P. R. China, 210GuangXi University, Nanning, P.R.China, 21120, e, 212Bochum Ruhr-University, Bochum, Germany, 213University of Science and Technology of China, Hefei, P. R. China, 21438, f, 215Institute of High Energy Physics, Beijing, P. R. China, 216Institute of High Energy Physics, Beijing, P. R. China, 217Indiana University, Bloomington, Indiana, USA, 218Institute of High Energy Physics, Beijing, P. R. China, 219University of Turin and INFN, Turin, Italy, 220Universitaet Giessen, Giessen, Germany, 221Institute of High Energy Physics, Beijing, P. R. China, 222Institute of High Energy Physics, Beijing, P. R. China, 223Henan Normal University, Xinxiang, P. R. China, 224Institute of High Energy Physics, Beijing, P. R. China, 225Institute of High Energy Physics, Beijing, P. R. China, 226University of Science and Technology of China, Hefei, P. R. China, 227Institute of High Energy Physics, Beijing, P. R. China, 228Institute of High Energy Physics, Beijing, P. R. China, 229University of Science and Technology of China, Hefei, P. R. China, 230Sichuan University, Chengdu, P. R. China, 231Institute of High Energy Physics, Beijing, P. R. China, 232University of Rochester, Rochester, New York, USA, 233Institute of High Energy Physics, Beijing, P. R. China, 234University of Minnesota, Minneapolis, MN, USA, 235Universitaet Giessen, Giessen, Germany, 236University of Hawaii, Honolulu, Hawaii, USA, 237GuangXi University, Nanning, P.R.China, 238Peking University, Beijing, P. R. China, 239Institute of High Energy Physics, Beijing, P. R. China, 240China Center of Advanced Science and Technology, Beijing, P. R. China, 241Institute of High Energy Physics, Beijing, P. R. China, 242Shandong University, Jinan, P. R. China, 243Institute of High Energy Physics, Beijing, P. R. China, 244Institute of High Energy Physics, Beijing, P. R. China, 245Peking University, Beijing, P. R. China, 246Institute of High Energy Physics, Beijing, P. R. China, 247Peking University, Beijing, P. R. China, 248Henan Normal University, Xinxiang, P. R. China, 249University of Science and Technology of China, Hefei, P. R. China, 250University of Science and Technology of China, Hefei, P. R. China, 251Institute of High Energy Physics, Beijing, P. R. China, 252Shandong University, Jinan, P. R. China, 253Institute of High Energy Physics, Beijing, P. R. China, 254Institute of High Energy Physics, Beijing, P. R. China, 255Institute of High Energy Physics, Beijing, P. R. China, 256Guangxi Normal University, Guilin, P. R. China, 257Johannes Gutenberg University of Mainz, Mainz, Germany, 258University of Science and Technology of China, Hefei, P. R. China, 259Institute of High Energy Physics, Beijing, P. R. China, 260Universitaet Giessen, Giessen, Germany, 261Bochum Ruhr-University, Bochum, Germany, 262Institute of High Energy Physics, Beijing, P. R. China, 263Institute of High Energy Physics, Beijing, P. R. China, 264University of Science and Technology of China, Hefei, P. R. China, 265Nankai University, Tianjin, P. R. China, 266Institute of High Energy Physics, Beijing, P. R. China, 267Tsinghua University, Beijing, P. R. China, 268Nanjing Normal University, Nanjing, P. R. China, 269Institute of High Energy Physics, Beijing, P. R. China, 270Institute of High Energy Physics, Beijing, P. R. China, 271Institute of High Energy Physics, Beijing, P. R. China, 272Peking University, Beijing, P. R. China, 273Institute of High Energy Physics, Beijing, P. R. China, 274Hangzhou Normal University, Hangzhou, P. R. China, 275Soochow University, Suzhou, China, 276Nankai University, Tianjin, P. R. China, 277University of Science and Technology of China, Hefei, P. R. China, 278Huazhong Normal University, Wuhan, P. R. China, 279Institute of High Energy Physics, Beijing, P. R. China, 280University of Science and Technology of China, Hefei, P. R. China, 281University of Science and Technology of China, Hefei, P. R. China, 282Hunan University, Changsha, P. R. China, 283Institute of High Energy Physics, Beijing, P. R. China, 284GuangXi University, Nanning, P.R.China, 285Huazhong Normal University, Wuhan, P. R. China, 286Guangxi Normal University, Guilin, P. R. China, 287Institute of High Energy Physics, Beijing, P. R. China, 288Institute of High Energy Physics, Beijing, P. R. China, 289China Center of Advanced Science and Technology, Beijing, P. R. China, 290Institute of High Energy Physics, Beijing, P. R. China, 291Nankai University, Tianjin, P. R. China, 292Lanzhou University, Lanzhou, P. R. China, 293Shandong University, Jinan, P. R. China, 294Institute of High Energy Physics, Beijing, P. R. China, 295Nanjing Normal University, Nanjing, P. R. China, 296Institute of High Energy Physics, Beijing, P. R. China, 297University of the Punjab, Lahore, Pakistan, 298INFN Laboratori Nazionali di Frascati, Frascati, Italy, 299Hunan University, Changsha, P. R. China, 300Institute of High Energy Physics, Beijing, P. R. China, 301Institute of High Energy Physics, Beijing, P. R. China, 302Institute of High Energy Physics, Beijing, P. R. China, 303Institute of High Energy Physics, Beijing, P. R. China, 304Sun Yat-Sen University, Guangzhou, P. R. China, 305Institute of High Energy Physics, Beijing, P. R. China, 306Nanjing Normal University, Nanjing, P. R. China, 307Henan Normal University, Xinxiang, P. R. China, 308Institute of High Energy Physics, Beijing, P. R. China, 309Institute of High Energy Physics, Beijing, P. R. China, 310Institute of High Energy Physics, Beijing, P. R. China, 311Institute of High Energy Physics, Beijing, P. R. China, 312Nanjing University, Nanjing, P. R. China, 313Institute of High Energy Physics, Beijing, P. R. China, 314Nanjing Normal University, Nanjing, P. R. China, 315Institute of High Energy Physics, Beijing, P. R. China, 316Shandong University, Jinan, P. R. China, 317Institute of High Energy Physics, Beijing, P. R. China, 318Institute of High Energy Physics, Beijing, P. R. China, 319GuangXi University, Nanning, P.R.China, 320University of Science and Technology of China, Hefei, P. R. China, 321Wuhan University, Wuhan, P. R. China, 322Institute of High Energy Physics, Beijing, P. R. China, 323Institute of High Energy Physics, Beijing, P. R. China, 324Institute of High Energy Physics, Beijing, P. R. China, 325Nanjing Normal University, Nanjing, P. R. China, 326University of Science and Technology of China, Hefei, P. R. China, 327Institute of High Energy Physics, Beijing, P. R. China, 328Nankai University, Tianjin, P. R. China, 329Institute of High Energy Physics, Beijing, P. R. China, 330Zhengzhou University, Zhengzhou, P. R. China, 331Institute of High Energy Physics, Beijing, P. R. China, 332Nanjing University, Nanjing, P. R. China, 333Institute of High Energy Physics, Beijing, P. R. China, 334University of Science and Technology of China, Hefei, P. R. China, 33520, a, 336University of South China, Hengyang, P. R. China, 337Institute of High Energy Physics, Beijing, P. R. China, 338Graduate University of Chinese Academy of Sciences, Beijing, P. R. China, 339Institute of High Energy Physics, Beijing, P. R. China, 340Institute of High Energy Physics, Beijing, P. R. China, 341Bochum Ruhr-University, Bochum, Germany, 342Institute of High Energy Physics, Beijing, P. R. China, 343Graduate University of Chinese Academy of Sciences, Beijing, P. R. China, 344University of Science and Technology of China, Hefei, P. R. China, 345Institute of High Energy Physics, Beijing, P. R. China, 346Institute of High Energy Physics, Beijing, P. R. China, 347Institute of High Energy Physics, Beijing, P. R. China, 348Institute of High Energy Physics, Beijing, P. R. China, 349Tsinghua University, Beijing, P. R. China, 350Institute of High Energy Physics, Beijing, P. R. China, 351Nankai University, Tianjin, P. R. China, 352Institute of High Energy Physics, Beijing, P. R. China, 353Institute of High Energy Physics, Beijing, P. R. China, 354Institute of High Energy Physics, Beijing, P. R. China, 355Institute of High Energy Physics, Beijing, P. R. China, 356Institute of High Energy Physics, Beijing, P. R. China, 357Institute of High Energy Physics, Beijing, P. R. China

The decays $J/\psi\to p\bar{p}$ and $J/\psi\to n\bar{n}$ have been investigated with a sample of 225.2 million $J/\psi$ events collected with the BESIII detector at the BEPCII $e^+e^-$ collider. The branching fractions are determined to be $\mathcal{B}(J/\psi\to p\bar{p})=(2. Read More

2012Apr
Authors: BESIII Collaboration, M. Ablikim, M. N. Achasov, D. J. Ambrose, F. F. An, Q. An, Z. H. An, J. Z. Bai, R. B. Ferroli, Y. Ban, J. Becker, N. Berger, M. B. Bertani, J. M. Bian, E. Boger, O. Bondarenko, I. Boyko, R. A. Briere, V. Bytev, X. Cai, A. C. Calcaterra, G. F. Cao, J. F. Chang, G. Chelkov, G. Chen, H. S. Chen, J. C. Chen, M. L. Chen, S. J. Chen, Y. Chen, Y. B. Chen, H. P. Cheng, Y. P. Chu, D. Cronin-Hennessy, H. L. Dai, J. P. Dai, D. Dedovich, Z. Y. Deng, A. Denig, I. Denysenko, M. Destefanis, W. M. Ding, Y. Ding, L. Y. Dong, M. Y. Dong, S. X. Du, J. Fang, S. S. Fang, L. Fava, F. Feldbauer, C. Q. Feng, C. D. Fu, J. L. Fu, Y. Gao, C. Geng, K. Goetzen, W. X. Gong, W. Gradl, M. Greco, M. H. Gu, Y. T. Gu, Y. H. Guan, A. Q. Guo, L. B. Guo, Y. P. Guo, Y. L. Han, X. Q. Hao, F. A. Harris, K. L. He, M. He, Z. Y. He, T. Held, Y. K. Heng, Z. L. Hou, H. M. Hu, J. F. Hu, T. Hu, B. Huang, G. M. Huang, J. S. Huang, X. T. Huang, Y. P. Huang, T. Hussain, C. S. Ji, Q. Ji, X. B. Ji, X. L. Ji, L. K. Jia, L. L. Jiang, X. S. Jiang, J. B. Jiao, Z. Jiao, D. P. Jin, S. Jin, F. F. Jing, N. Kalantar-Nayestanaki, M. Kavatsyuk, W. Kuehn, W. Lai, J. S. Lange, J. K. C. Leung, C. H. Li, Cheng Li, Cui Li, D. M. Li, F. Li, G. Li, H. B. Li, J. C. Li, K. Li, Lei Li, N. B. Li, Q. J. Li, S. L. Li, W. D. Li, W. G. Li, X. L. Li, X. N. Li, X. Q. Li, X. R. Li, Z. B. Li, H. Liang, Y. F. Liang, Y. T. Liang, G. R. Liao, X. T. Liao, B. J. Liu, B. J. Liu, C. L. Liu, C. X. Liu, C. Y. Liu, F. H. Liu, Fang Liu, Feng Liu, H. Liu, H. B. Liu, H. H. Liu, H. M. Liu, H. W. Liu, J. P. Liu, Kun Liu, Kai Liu, K. Y. Liu, P. L. Liu, S. B. Liu, X. Liu, X. H. Liu, Y. B. Liu, Y. Liu, Z. A. Liu, Zhiqiang Liu, Zhiqing Liu, H. Loehner, G. R. Lu, H. J. Lu, J. G. Lu, Q. W. Lu, X. R. Lu, Y. P. Lu, C. L. Luo, M. X. Luo, T. Luo, X. L. Luo, M. Lv, C. L. Ma, F. C. Ma, H. L. Ma, Q. M. Ma, S. Ma, T. Ma, X. Y. Ma, Y. Ma, F. E. Maas, M. Maggiora, Q. A. Malik, H. Mao, Y. J. Mao, Z. P. Mao, J. G. Messchendorp, J. Min, T. J. Min, R. E. Mitchell, X. H. Mo, C. Morales Morales, C. Motzko, N. Yu. Muchnoi, Y. Nefedov, C. Nicholson, I. B. Nikolaev, Z. Ning, S. L. Olsen, Q. Ouyang, S. P. Pacetti, J. W. Park, M. Pelizaeus, K. Peters, J. L. Ping, R. G. Ping, R. Poling, E. Prencipe, C. S. J. Pun, M. Qi, S. Qian, C. F. Qiao, X. S. Qin, Y. Qin, Z. H. Qin, J. F. Qiu, K. H. Rashid, G. Rong, X. D. Ruan, A. Sarantsev, J. Schulze, M. Shao, C. P. Shen, X. Y. Shen, H. Y. Sheng, M. R. Shepherd, X. Y. Song, S. Spataro, B. Spruck, D. H. Sun, G. X. Sun, J. F. Sun, S. S. Sun, X. D. Sun, Y. J. Sun, Y. Z. Sun, Z. J. Sun, Z. T. Sun, C. J. Tang, X. Tang, E. H. Thorndike, H. L. Tian, D. Toth, M. U. Ulrich, G. S. Varner, B. Wang, B. Q. Wang, K. Wang, L. L. Wang, L. S. Wang, M. Wang, P. Wang, P. L. Wang, Q. Wang, Q. J. Wang, S. G. Wang, X. F. Wang, X. L. Wang, Y. D. Wang, Y. F. Wang, Y. Q. Wang, Z. Wang, Z. G. Wang, Z. Y. Wang, D. H. Wei, P. Weidenkaff, Q. G. Wen, S. P. Wen, M. W. Werner, U. Wiedner, L. H. Wu, N. Wu, S. X. Wu, W. Wu, Z. Wu, L. G. Xia, Z. J. Xiao, Y. G. Xie, Q. L. Xiu, G. F. Xu, G. M. Xu, H. Xu, Q. J. Xu, X. P. Xu, Y. Xu, Z. R. Xu, F. Xue, Z. Xue, L. Yan, W. B. Yan, Y. H. Yan, H. X. Yang, T. Yang, Y. Yang, Y. X. Yang, H. Ye, M. Ye, M. H. Ye, B. X. Yu, C. X. Yu, J. S. Yu, S. P. Yu, C. Z. Yuan, W. L. Yuan, Y. Yuan, A. A. Zafar, A. Z. Zallo, Y. Zeng, B. X. Zhang, B. Y. Zhang, C. C. Zhang, D. H. Zhang, H. H. Zhang, H. Y. Zhang, J. Zhang, J. G. Zhang, J. Q. Zhang, J. W. Zhang, J. Y. Zhang, J. Z. Zhang, L. Zhang, S. H. Zhang, T. R. Zhang, X. J. Zhang, X. Y. Zhang, Y. Zhang, Y. H. Zhang, Y. S. Zhang, Z. P. Zhang, Z. Y. Zhang, G. Zhao, H. S. Zhao, J. W. Zhao, K. X. Zhao, Lei Zhao, Ling Zhao, M. G. Zhao, Q. Zhao, S. J. Zhao, T. C. Zhao, X. H. Zhao, Y. B. Zhao, Z. G. Zhao, A. Zhemchugov, B. Zheng, J. P. Zheng, Y. H. Zheng, Z. P. Zheng, B. Zhong, J. Zhong, L. Zhou, X. K. Zhou, X. R. Zhou, C. Zhu, K. Zhu, K. J. Zhu, S. H. Zhu, X. L. Zhu, X. W. Zhu, Y. M. Zhu, Y. S. Zhu, Z. A. Zhu, J. Zhuang, B. S. Zou, J. H. Zou, J. X. Zuo

The two-photon transition $\psi(3686)\to\gamma\gamma J/\psi$ is studied in a sample of 106 million $\psi(3686)$ decays collected by the BESIII detector. The branching fraction is measured to be $(3.1\pm0. Read More

2012Mar
Authors: F. P. An, J. Z. Bai, A. B. Balantekin, H. R. Band, D. Beavis, W. Beriguete, M. Bishai, S. Blyth, K. Boddy, R. L. Brown, B. Cai, G. F. Cao, J. Cao, R. Carr, W. T. Chan, J. F. Chang, Y. Chang, C. Chasman, H. S. Chen, H. Y. Chen, S. J. Chen, S. M. Chen, X. C. Chen, X. H. Chen, X. S. Chen, Y. Chen, Y. X. Chen, J. J. Cherwinka, M. C. Chu, J. P. Cummings, Z. Y. Deng, Y. Y. Ding, M. V. Diwan, L. Dong, E. Draeger, X. F. Du, D. A. Dwyer, W. R. Edwards, S. R. Ely, S. D. Fang, J. Y. Fu, Z. W. Fu, L. Q. Ge, V. Ghazikhanian, R. L. Gill, J. Goett, M. Gonchar, G. H. Gong, H. Gong, Y. A. Gornushkin, L. S. Greenler, W. Q. Gu, M. Y. Guan, X. H. Guo, R. W. Hackenburg, R. L. Hahn, S. Hans, M. He, Q. He, W. S. He, K. M. Heeger, Y. K. Heng, P. Hinrichs, T. H. Ho, Y. K. Hor, Y. B. Hsiung, B. Z. Hu, T. Hu, T. Hu, H. X. Huang, H. Z. Huang, P. W. Huang, X. Huang, X. T. Huang, P. Huber, Z. Isvan, D. E. Jaffe, S. Jetter, X. L. Ji, X. P. Ji, H. J. Jiang, W. Q. Jiang, J. B. Jiao, R. A. Johnson, L. Kang, S. H. Kettell, M. Kramer, K. K. Kwan, M. W. Kwok, T. Kwok, C. Y. Lai, W. C. Lai, W. H. Lai, K. Lau, L. Lebanowski, J. Lee, M. K. P. Lee, R. Leitner, J. K. C. Leung, K. Y. Leung, C. A. Lewis, B. Li, F. Li, G. S. Li, J. Li, Q. J. Li, S. F. Li, W. D. Li, X. B. Li, X. N. Li, X. Q. Li, Y. Li, Z. B. Li, H. Liang, J. Liang, C. J. Lin, G. L. Lin, S. K. Lin, S. X. Lin, Y. C. Lin, J. J. Ling, J. M. Link, L. Littenberg, B. R. Littlejohn, B. J. Liu, C. Liu, D. W. Liu, H. Liu, J. C. Liu, J. L. Liu, S. Liu, X. Liu, Y. B. Liu, C. Lu, H. Q. Lu, A. Luk, K. B. Luk, T. Luo, X. L. Luo, L. H. Ma, Q. M. Ma, X. B. Ma, X. Y. Ma, Y. Q. Ma, B. Mayes, K. T. McDonald, M. C. McFarlane, R. D. McKeown, Y. Meng, D. Mohapatra, J. E. Morgan, Y. Nakajima, J. Napolitano, D. Naumov, I. Nemchenok, C. Newsom, H. Y. Ngai, W. K. Ngai, Y. B. Nie, Z. Ning, J. P. Ochoa-Ricoux, D. Oh, A. Olshevski, A. Pagac, S. Patton, C. Pearson, V. Pec, J. C. Peng, L. E. Piilonen, L. Pinsky, C. S. J. Pun, F. Z. Qi, M. Qi, X. Qian, N. Raper, R. Rosero, B. Roskovec, X. C. Ruan, B. Seilhan, B. B. Shao, K. Shih, H. Steiner, P. Stoler, G. X. Sun, J. L. Sun, Y. H. Tam, H. K. Tanaka, X. Tang, H. Themann, Y. Torun, S. Trentalange, O. Tsai, K. V. Tsang, R. H. M. Tsang, C. Tull, B. Viren, S. Virostek, V. Vorobel, C. H. Wang, L. S. Wang, L. Y. Wang, L. Z. Wang, M. Wang, N. Y. Wang, R. G. Wang, T. Wang, W. Wang, X. Wang, X. Wang, Y. F. Wang, Z. Wang, Z. Wang, Z. M. Wang, D. M. Webber, Y. D. Wei, L. J. Wen, D. L. Wenman, K. Whisnant, C. G. White, L. Whitehead, C. A. Whitten Jr., J. Wilhelmi, T. Wise, H. C. Wong, H. L. H. Wong, J. Wong, E. T. Worcester, F. F. Wu, Q. Wu, D. M. Xia, S. T. Xiang, Q. Xiao, Z. Z. Xing, G. Xu, J. Xu, J. Xu, J. L. Xu, W. Xu, Y. Xu, T. Xue, C. G. Yang, L. Yang, M. Ye, M. Yeh, Y. S. Yeh, K. Yip, B. L. Young, Z. Y. Yu, L. Zhan, C. Zhang, F. H. Zhang, J. W. Zhang, Q. M. Zhang, K. Zhang, Q. X. Zhang, S. H. Zhang, Y. C. Zhang, Y. H. Zhang, Y. X. Zhang, Z. J. Zhang, Z. P. Zhang, Z. Y. Zhang, J. Zhao, Q. W. Zhao, Y. B. Zhao, L. Zheng, W. L. Zhong, L. Zhou, Z. Y. Zhou, H. L. Zhuang, J. H. Zou

The Daya Bay Reactor Neutrino Experiment has measured a non-zero value for the neutrino mixing angle $\theta_{13}$ with a significance of 5.2 standard deviations. Antineutrinos from six 2. Read More

2012Feb
Authors: Daya Bay Collaboration, F. P. An, Q. An, J. Z. Bai, A. B. Balantekin, H. R. Band, W. Beriguete, M. Bishai, S. Blyth, R. L. Brown, G. F. Cao, J. Cao, R. Carr, J. F. Chang, Y. Chang, C. Chasman, H. S. Chen, S. J. Chen, S. M. Chen, X. C. Chen, X. H. Chen, X. S. Chen, Y. Chen, J. J. Cherwinka, M. C. Chu, J. P. Cummings, Z. Y. Deng, Y. Y. Ding, M. V. Diwan, E. Draeger, X. F. Du, D. Dwyer, W. R. Edwards, S. R. Ely, S. D. Fang, J. Y. Fu, Z. W. Fu, L. Q. Ge, R. L. Gill, M. Gonchar, G. H. Gong, H. Gong, Y. A. Gornushkin, L. S. Greenler, W. Q. Gu, M. Y. Guan, X. H. Guo, R. W. Hackenburg, R. L. Hahn, S. Hans, H. F. Hao, M. He, Q. He, W. S. He, K. M. Heeger, Y. K. Heng, P. Hinrichs, T. H. Ho, Y. K. Hor, Y. B. Hsiung, B. Z. Hu, T. Hu, T. Hu, H. X. Huang, H. Z. Huang, P. W. Huang, X. Huang, X. T. Huang, P. Huber, D. E. Jaffe, S. Jetter, X. L. Ji, X. P. Ji, H. J. Jiang, W. Q. Jiang, J. B. Jiao, R. A. Johnson, L. Kang, S. H. Kettell, M. Kramer, K. K. Kwan, M. W. Kwok, T. Kwok, C. Y. Lai, W. C. Lai, W. H. Lai, K. Lau, L. Lebanowski, M. K. P. Lee, R. Leitner, J. K. C. Leung, K. Y. Leung, C. A. Lewis, F. Li, G. S. Li, J. Li, Q. J. Li, S. F. Li, W. D. Li, X. B. Li, X. N. Li, X. Q. Li, Y. Li, Z. B. Li, H. Liang, C. J. Lin, G. L. Lin, S. K. Lin, S. X. Lin, Y. C. Lin, J. J. Ling, J. M. Link, L. Littenberg, B. R. Littlejohn, B. J. Liu, D. W. Liu, J. C. Liu, J. L. Liu, S. Liu, X. Liu, Y. B. Liu, C. Lu, H. Q. Lu, A. Luk, K. B. Luk, X. L. Luo, L. H. Ma, Q. M. Ma, X. Y. Ma, Y. Q. Ma, B. Mayes, K. T. McDonald, M. C. McFarlane, R. D. McKeown, Y. Meng, D. Mohapatra, Y. Nakajima, J. Napolitano, D. Naumov, I. Nemchenok, C. Newsom, H. Y. Ngai, W. K. Ngai, Y. B. Nie, Z. Ning, J. P. Ochoa-Ricoux, A. Olshevski, A. Pagac, S. Patton, V. Pec, J. C. Peng, L. E. Piilonen, L. Pinsky, C. S. J. Pun, F. Z. Qi, M. Qi, X. Qian, R. Rosero, B. Roskovec, X. C. Ruan, B. Seilhan, B. B. Shao, K. Shih, H. Steiner, P. Stoler, G. X. Sun, J. L. Sun, Y. H. Tam, H. K. Tanaka, X. Tang, Y. Torun, S. Trentalange, O. Tsai, K. V. Tsang, R. H. M. Tsang, C. Tull, B. Viren, V. Vorobel, C. H. Wang, L. S. Wang, L. Y. Wang, M. Wang, N. Y. Wang, R. G. Wang, W. Wang, X. Wang, Y. F. Wang, Z. Wang, Z. Wang, Z. M. Wang, D. M. Webber, Y. D. Wei, L. J. Wen, D. L. Wenman, K. Whisnant, C. G. White, L. Whitehead, J. Wilhelmi, T. Wise, H. L. H. Wong, J. Wong, F. F. Wu, Q. Wu, J. B. Xi, D. M. Xia, Q. Xiao, Z. Z. Xing, G. Xu, J. Xu, J. Xu, J. L. Xu, Y. Xu, T. Xue, C. G. Yang, L. Yang, M. Ye, M. Yeh, Y. S. Yeh, B. L. Young, Z. Y. Yu, L. Zhan, C. Zhang, F. H. Zhang, J. W. Zhang, Q. M. Zhang, S. H. Zhang, Y. C. Zhang, Y. H. Zhang, Y. X. Zhang, Z. J. Zhang, Z. P. Zhang, Z. Y. Zhang, H. Zhao, J. Zhao, Q. W. Zhao, Y. B. Zhao, L. Zheng, W. L. Zhong, L. Zhou, Y. Z. Zhou, Z. Y. Zhou, H. L. Zhuang, J. H. Zou

The Daya Bay Reactor Neutrino Experiment is designed to determine precisely the neutrino mixing angle $\theta_{13}$ with a sensitivity better than 0.01 in the parameter sin$^22\theta_{13}$ at the 90% confidence level. To achieve this goal, the collaboration will build eight functionally identical antineutrino detectors. Read More

2012Feb
Authors: BESIII Collaboration, M. Ablikim, M. N. Achasov, D. J. Ambrose, F. F. An, Q. An, Z. H. An, J. Z. Bai, R. B. F. Baldini Ferroli, Y. Ban, J. Becker, N. Berger, M. B. Bertani, J. M. Bian, E. Boger, O. Bondarenko, I. Boyko, R. A. Briere, V. Bytev, X. Cai, A. C. Calcaterra, G. F. Cao, J. F. Chang, G. Chelkov, G. Chen, H. S. Chen, J. C. Chen, M. L. Chen, S. J. Chen, Y. Chen, Y. B. Chen, H. P. Cheng, Y. P. Chu, D. Cronin-Hennessy, H. L. Dai, J. P. Dai, D. Dedovich, Z. Y. Deng, G. Denig, I. Denysenko, M. Destefanis, W. M. Ding Ding, Y. Ding, L. Y. Dong, M. Y. Dong, S. X. Du, J. Fang, S. S. Fang, L. Fava, F. Feldbauer, C. Q. Feng, C. D. Fu, J. L. Fu, Y. Gao, C. Geng, K. Goetzen, W. X. Gong, M. Greco, M. H. Gu, Y. T. Gu, Y. H. Guan, A. Q. Guo, L. B. Guo, Y. P. Guo, Y. L. Han, X. Q. Hao, F. A. Harris, K. L. He, M. He, Z. Y. He, T. Held, Y. K. Heng, Z. L. Hou, H. M. Hu, J. F. Hu, T. Hu, B. Huang, G. M. Huang, J. S. Huang, X. T. Huang, Y. P. Huang, T. Hussain, C. S. Ji, Q. Ji, X. B. Ji, X. L. Ji, L. K. Jia, L. L. Jiang, X. S. Jiang, J. B. Jiao, Z. Jiao, D. P. Jin, S. Jin, F. F. Jing, N. Kalantar-Nayestanaki, M. Kavatsyuk, W. Kuehn, W. Lai, J. S. Lange, J. K. C. Leung, C. H. Li, Cheng Li, Cui Li, D. M. Li, F. Li, G. Li, H. B. Li, J. C. Li, K. Li, Lei Li, N. B. Li, Q. J. Li, S. L. Li, W. D. Li, W. G. Li, X. L. Li, X. N. Li, X. Q. Li, X. R. Li, Z. B. Li, H. Liang, Y. F. Liang, Y. T. Liang, G. R. Liao, X. T. Liao, B. J. Liu, B. J. Liu, C. L. Liu, C. X. Liu, C. Y. Liu, F. H. Liu, Fang Liu, Feng Liu, H. Liu, H. B. Liu, H. H. Liu, H. M. Liu, H. W. Liu, J. P. Liu, K. Liu, K. Liu, K. Y. Liu, S. B. Liu, X. Liu, X. H. Liu, Y. B. Liu, Yong Liu, Z. A. Liu, Zhiqiang Liu, Zhiqing Liu, H. Loehner, G. R. Lu, H. J. Lu, J. G. Lu, Q. W. Lu, X. R. Lu, Y. P. Lu, C. L. Luo, M. X. Luo, T. Luo, X. L. Luo, M. Lv, C. L. Ma, F. C. Ma, H. L. Ma, Q. M. Ma, S. Ma, T. Ma, X. Y. Ma, F. E. Maas, M. Maggiora, Q. A. Malik, H. Mao, Y. J. Mao, Z. P. Mao, J. G. Messchendorp, J. Min, T. J. Min, R. E. Mitchell, X. H. Mo, C. Motzko, N. Yu. Muchnoi, Y. Nefedov, I. B. Nikolaev, Z. Ning, S. L. Olsen, Q. Ouyang, S. P. Pacetti, J. W. Park, M. Pelizaeus, K. Peters, J. L. Ping, R. G. Ping, R. Poling, C. S. J. Pun, M. Qi, S. Qian, C. F. Qiao, X. S. Qin, Y. Qin, Z. H. Qin, J. F. Qiu, K. H. Rashid, G. Rong, X. D. Ruan, A. Sarantsev, J. Schulze, M. Shao, C. P. Shen, X. Y. Shen, H. Y. Sheng, M. R. Shepherd, X. Y. Song, S. Spataro, B. Spruck, D. H. Sun, G. X. Sun, J. F. Sun, S. S. Sun, X. D. Sun, Y. J. Sun, Y. Z. Sun, Z. J. Sun, Z. T. Sun, C. J. Tang, X. Tang, E. H. Thorndike, H. L. Tian, D. Toth, M. U. Ulrich, G. S. Varner, B. Wang, B. Q. Wang, K. Wang, L. L. Wang, L. S. Wang, M. Wang, P. Wang, P. L. Wang, Q. Wang, Q. J. Wang, S. G. Wang, X. F. Wang, X. L. Wang, Y. D. Wang, Y. F. Wang, Y. Q. Wang, Z. Wang, Z. G. Wang, Z. Y. Wang, D. H. Wei, Q. G. Wen, S. P. Wen, M. W. Werner, U. Wiedner, L. H. Wu, N. Wu, S. X. Wu, W. Wu, Z. Wu, L. G. Xia, Z. J. Xiao, Y. G. Xie, Q. L. Xiu, G. F. Xu, G. M. Xu, H. Xu, Q. J. Xu, X. P. Xu, Y. Xu, Z. R. Xu, F. Xue, Z. Xue, L. Yan, W. B. Yan, Y. H. Yan, H. X. Yang, T. Yang, Y. Yang, Y. X. Yang, H. Ye, M. Ye, M. H. Ye, B. X. Yu, C. X. Yu, J. S. Yu, S. P. Yu, C. Z. Yuan, W. L. Yuan, Y. Yuan, A. A. Zafar, A. Z. Zallo, Y. Zeng, B. X. Zhang, B. Y. Zhang, C. C. Zhang, D. H. Zhang, H. H. Zhang, H. Y. Zhang, J. Zhang, J. Q. Zhang, J. W. Zhang, J. Y. Zhang, J. Z. Zhang, L. Zhang, S. H. Zhang, T. R. Zhang, X. J. Zhang, X. Y. Zhang, Y. Zhang, Y. H. Zhang, Y. S. Zhang, Z. P. Zhang, Z. Y. Zhang, G. Zhao, H. S. Zhao, Jingwei Zhao, K. X. Zhao, Lei Zhao, Ling Zhao, M. G. Zhao, Q. Zhao, S. J. Zhao, T. C. Zhao, X. H. Zhao, Y. B. Zhao,