文献类型：期刊文献

英文题名：Measurement of the Reactor Antineutrino Flux and Spectrum at Daya Bay

作者：An, F. P.[1];Balantekin, A. B.[2];Band, H. R.[3];Bishai, M.[4];Blyth, S.[5,6];Butorov, I.[7];Cao, D.[8];Cao, G. F.[9];Cao, J.[9];Cen, W. R.[9];Chan, Y. L.[10];Chang, J. F.[9];Chang, L. C.[11];Chang, Y.[6];Chen, H. S.[9];Chen, Q. Y.[12];Chen, S. M.[13];Chen, Y. X.[14];Chen, Y.[15];Cheng, J. H.[11];Cheng, J.[12];Cheng, Y. P.[9];Cherwinka, J. J.[2];Chu, M. C.[10];Cummings, J. P.[16];de Arcos, J.[17];Deng, Z. Y.[9];Ding, X. F.[9];Ding, Y. Y.[9];Diwan, M. V.[4];Dove, J.[18];Draeger, E.[17];Dwyer, D. A.[19];Edwards, W. R.[19];Ely, S. R.[18];Gill, R.[4];Gonchar, M.[7];Gong, G. H.[13];Gong, H.[13];Grassi, M.[9];Gu, W. Q.[20];Guan, M. Y.[9];Guo, L.[13];Guo, X. H.[21];Hackenburg, R. W.[4];Han, R.[14];Hans, S.[4];He, M.[9];Heeger, K. M.[3];Heng, Y. K.[9];Higuera, A.[22];Hor, Y. K.[23];Hsiung, Y. B.[5];Hu, B. Z.[5];Hu, L. M.[4];Hu, L. J.[21];Hu, T.[9];Hu, W.[9];Huang, E. C.[18];Huang, H. X.[24];Huang, X. T.[12];Huber, P.[23];Hussain, G.[13];Jaffe, D. E.[4];Jaffke, P.[23];Jen, K. L.[11];Jetter, S.[9];Ji, X. P.[13,25];Ji, X. L.[9];Jiao, J. B.[12];Johnson, R. A.[26];Kang, L.[27];Kettell, S. H.[4];Kohn, S.[28];Kramer, M.[19,28];Kwan, K. K.[10];Kwok, M. W.[10];Kwok, T.[29];Langford, T. J.[3];Lau, K.[22];Lebanowski, L.[13];Lee, J.[19];Lei, R. T.[27];Leitner, R.[30];Leung, K. Y.[29];Leung, J. K. C.[29];Lewis, C. A.[2];Li, D. J.[31];Li, F.[9];Li, G. S.[20];Li, Q. J.[9];Li, S. C.[29];Li, W. D.[9];Li, X. N.[9];Li, X. Q.[25];Li, Y. F.[9];Li, Z. B.[32];Liang, H.[31];Lin, C. J.[19];Lin, G. L.[11];Lin, P. Y.[11];Lin, S. K.[22];Ling, J. J.[4,18,32];Link, J. M.[23];Littenberg, L.[4];Littlejohn, B. R.[17,26];Liu, D. W.[22];Liu, H.[22];Liu, J. L.[20];Liu, J. C.[9];Liu, S. S.[29];Lu, C.[33];Lu, H. Q.[9];Lu, J. S.[9];Luk, K. B.[19,28];Ma, Q. M.[9];Ma, X. Y.[9];Ma, X. B.[14];Ma, Y. Q.[9];Caicedo, D. A. Martinez[17];McDonald, K. T.[33];McKeown, R. D.[34,35];Meng, Y.[23];Mitchell, I.[22];Kebwaro, J. Monari[36];Nakajima, Y.[19];Napolitano, J.[37];Naumov, D.[7];Naumova, E.[7];Ngai, H. Y.[29];Ning, Z.[9];Ochoa-Ricoux, J. P.[38];Olshevski, A.[7,10];Pan, H. -R.[5];Park, J.[23];Patton, S.[19];Pec, V.[30];Peng, J. C.[18];Piilonen, L. E.[23];Pinsky, L.[22];Pun, C. S. J.[29];Qi, F. Z.[9];Qi, M.[8];Qian, X.[4];Raper, N.[39];Ren, B.[27];Ren, J.[24];Rosero, R.[4];Roskovec, B.[30];Ruan, X. C.[24];Shao, B. B.[13];Steiner, H.[19,28];Sun, G. X.[9];Sun, J. L.[40];Tang, W.[4];Taychenachev, D.[7];Tsang, K. V.[19];Tull, C. E.[19];Tung, Y. C.[5];Viaux, N.[38];Viren, B.[4];Vorobel, V.[30];Wang, C. H.[6];Wang, M.[12];Wang, N. Y.[21];Wang, R. G.[9];Wang, W.[32,35];Wang, W. W.[8];Wang, X.[41];Wang, Y. F.[9];Wang, Z.[9,13];Wang, Z. M.[9];Wei, H. Y.[13];Wen, L. J.[9];Whisnant, K.[42];White, C. G.[17];Whitehead, L.[22];Wise, T.[2];Wong, H. L. H.[19,28];Wong, S. C. F.[10,32];Worcester, E.[4];Wu, Q.[12];Xia, D. M.[9,43];Xia, J. K.[9];Xia, X.[12];Xing, Z. Z.[9];Xu, J. Y.[10];Xu, J. L.[9];Xu, J.[21];Xu, Y.[25];Xue, T.[13];Yan, J.[36];Yang, C. G.[9];Yang, L.[27];Yang, M. S.[9];Yang, M. T.[12];Ye, M.[9];Yeh, M.[4];Young, B. L.[42];Yu, G. Y.[8];Yu, Z. Y.[9];Zang, S. L.[8];Zhan, L.[9];Zhang, C.[4];Zhang, H. H.[32];Zhang, J. W.[9];Zhang, Q. M.[36];Zhang, Y. X.[40];Zhang, Y. M.[13,32];Zhang, Z. J.[27];Zhang, Z. Y.[9];Zhang, Z. P.[31];Zhao, J.[9];Zhao, Q. W.[9];Zhao, Y. F.[14];Zhao, Y. B.[9];Zheng, L.[31];Zhong, W. L.[9];Zhou, L.[9];Zhou, N.[31];Zhuang, H. L.[9];Zou, J. H.[9]

机构：[1]E China Univ Sci & Technol, Inst Modern Phys, Shanghai 200237, Peoples R China;[2]Univ Wisconsin, Madison, WI USA;[3]Yale Univ, Dept Phys, New Haven, CT USA;[4]Brookhaven Natl Lab, Upton, NY 11973 USA;[5]Natl Taiwan Univ, Dept Phys, Taipei, Taiwan;[6]Natl United Univ, Miaoli 36003, Taiwan;[7]Joint Inst Nucl Res, Dubna, Moscow Region, Russia;[8]Nanjing Univ, Nanjing 210008, Jiangsu, Peoples R China;[9]Inst High Energy Phys, Beijing 100039, Peoples R China;[10]Chinese Univ Hong Kong, Hong Kong, Hong Kong, Peoples R China;[11]Natl Chiao Tung Univ, Inst Phys, Hsinchu, Taiwan;[12]Shandong Univ, Jinan 250100, Peoples R China;[13]Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China;[14]North China Elect Power Univ, Beijing, Peoples R China;[15]Shenzhen Univ, Shenzhen, Peoples R China;[16]Siena Coll, Loudonville, NY USA;[17]IIT, Dept Phys, Chicago, IL 60616 USA;[18]Univ Illinois, Dept Phys, Urbana, IL USA;[19]Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA;[20]Shanghai Jiao Tong Univ, Shanghai 200030, Peoples R China;[21]Beijing Normal Univ, Beijing 100875, Peoples R China;[22]Univ Houston, Dept Phys, Houston, TX USA;[23]Virginia Tech, Ctr Neutrino Phys, Blacksburg, VA USA;[24]China Inst Atom Energy, Beijing, Peoples R China;[25]Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China;[26]Univ Cincinnati, Dept Phys, Cincinnati, OH USA;[27]Dongguan Univ Technol, Dongguan, Peoples R China;[28]Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA;[29]Univ Hong Kong, Dept Phys, Pokfulam, Hong Kong, Peoples R China;[30]Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic;[31]Univ Sci & Technol China, Hefei 230026, Peoples R China;[32]Sun Yat Sen Zhongshan Univ, Guangzhou, Guangdong, Peoples R China;[33]Princeton Univ, Joseph Henry Labs, Princeton, NJ 08544 USA;[34]CALTECH, Pasadena, CA 91125 USA;[35]Coll William & Mary, Williamsburg, VA USA;[36]Xi An Jiao Tong Univ, Xian 710049, Peoples R China;[37]Temple Univ, Dept Phys, Coll Sci & Technol, Philadelphia, PA 19122 USA;[38]Pontificia Univ Catolica Chile, Inst Fis, Alameda 340, Santiago, Chile;[39]Rensselaer Polytech Inst, Dept Phys Appl Phys & Astron, Troy, NY USA;[40]China Gen Nucl Power Grp, Shenzhen, Peoples R China;[41]Natl Univ Def Technol, Coll Elect Sci & Engn, Changsha, Hunan, Peoples R China;[42]Iowa State Univ, Ames, IA USA;[43]Chongqing Univ, Chongqing 630044, Peoples R China

年份：2016

卷号：116

期号：6

外文期刊名：PHYSICAL REVIEW LETTERS

收录：;EI(收录号：20160801956436);WOS:【SCI-EXPANDED(收录号:WOS:000370030800004)】；

基金：Daya Bay is supported in part by the Ministry of Science and Technology of China, the U.S. Department of Energy, the Chinese Academy of Sciences (CAS), the CAS Center for Excellence in Particle Physics, the National Natural Science Foundation of China, the Guangdong provincial government, the Shenzhen municipal government, the China General Nuclear Power Group, Laboratory Directed Research and Development Program of Institute of High Energy Physics, Shanghai Laboratory for Particle Physics and Cosmology, the Research Grants Council of the Hong Kong Special Administrative Region of China, the University Development Fund of The University of Hong Kong, the MOE program for Research of Excellence at National Taiwan University, National Chiao-Tung University, and NSC fund support from Taiwan, the U.S. National Science Foundation, the Alfred P. Sloan Foundation, Laboratory Directed Research and Development Program of Berkeley National Laboratory and Brookhaven National Laboratory, the Ministry of Education, Youth, and Sports of the Czech Republic, Charles University in Prague, the Joint Institute of Nuclear Research in Dubna, Russia, the NSFC-RFBR joint research program, the National Commission of Scientific and Technological Research of Chile. We acknowledge Yellow River Engineering Consulting Co., Ltd., and China Railway 15th Bureau Group Co., Ltd., for building the underground laboratory. We are grateful for the ongoing cooperation from the China General Nuclear Power Group and China Light and Power Company.

语种：英文

外文关键词：Spectroscopy - Positrons

摘要：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 and 561 m) and one far (1579 m) underground experimental halls in the Daya Bay experiment. Using 217 days of data, 296 721 and 41 589 inverse beta decay (IBD) candidates were detected in the near and far halls, respectively. The measured IBD yield is (1.55 +/- 0.04) x 10(-18) cm(2) GW(-1) day(-1) or (5.92 +/- 0.14) x 10(-43) cm(2) fission(-1). This flux measurement is consistent with previous short-baseline reactor antineutrino experiments and is 0.946 +/- 0.022 (0.991 +/- 0.023) relative to the flux predicted with the Huber-Mueller (ILL-Vogel) fissile antineutrino model. The measured IBD positron energy spectrum deviates from both spectral predictions by more than 2 sigma over the full energy range with a local significance of up to similar to 4 sigma between 4-6 MeV. A reactor antineutrino spectrum of IBD reactions is extracted from the measured positron energy spectrum for model-independent predictions.