/ hep-ex arXiv:1406.6468


Independent Measurement of Theta13 via Neutron Capture on Hydrogen at Daya Bay


An, F.P. (Henan Normal U.) ; Balantekin, A.B. (Wisconsin U., Madison) ; Band, H.R. (Wisconsin U., Madison) ; Beriguete, W. (Brookhaven) ; Bishai, M. (Brookhaven) ; Blyth, S. (Taiwan, Natl. Taiwan U.) ; Butorov, I. (Dubna, JINR) ; Cao, G.F. (Beijing, Inst. High Energy Phys.) ; Cao, J. (Beijing, Inst. High Energy Phys.) ; Chan, Y.L. (Hong Kong, Chinese U.) ; Chang, J.F. (Beijing, Inst. High Energy Phys.) ; Chang, L.C. (Taiwan, Natl. Chiao Tung U.) ; Chang, Y. (Natl. United U., Taiwan) ; Chasman, C. (Brookhaven) ; Chen, H. (Beijing, Inst. High Energy Phys.) ; Chen, Q.Y. (Shandong U.) ; Chen, S.M. (Tsinghua U., Beijing) ; Chen, X. (Hong Kong, Chinese U.) ; Chen, X. (Beijing, Inst. High Energy Phys.) ; Chen, Y.X. (Beijing, North China Elec. Power U.) ; Chen, Y. (Shenzhen U.) ; Cheng, Y.P. (Beijing, Inst. High Energy Phys.) ; Cherwinka, J.J. (Wisconsin U., Madison) ; Chu, M.C. (Hong Kong, Chinese U.) ; Cummings, J.P. (Siena Coll., Loudonville) ; de Arcos, J. (IIT, Chicago) ; Deng, Z.Y. (Beijing, Inst. High Energy Phys.) ; Ding, Y.Y. (Beijing, Inst. High Energy Phys.) ; Diwan, M.V. (Brookhaven) ; Draeger, E. (IIT, Chicago) ; Du, X.F. (Beijing, Inst. High Energy Phys.) ; Dwyer, D.A. (LBL, Berkeley) ; Edwards, W.R. (LBL, Berkeley) ; Ely, S.R. (Illinois U., Urbana) ; Fu, J.Y. (Beijing, Inst. High Energy Phys.) ; Ge, L.Q. (Chengdu U. Of Tech.) ; Gill, R. (Brookhaven) ; Gonchar, M. (Dubna, JINR) ; Gong, G.H. (Tsinghua U., Beijing) ; Gong, H. (Tsinghua U., Beijing) ; Gornushkin, Y.A. (Dubna, JINR) ; Gu, W.Q. (Shanghai, Jiao Tong U.) ; Guan, M.Y. (Beijing, Inst. High Energy Phys.) ; Guo, X.H. (Beijing Normal U.) ; Hackenburg, R.W. (Brookhaven) ; Han, G.H. (William-Mary Coll.) ; Hans, S. (Brookhaven) ; He, M. (Beijing, Inst. High Energy Phys.) ; Heeger, K.M. (Yale U.) ; Heng, Y.K. (Beijing, Inst. High Energy Phys.) ; Hinrichs, P. (Wisconsin U., Madison) ; Hor, Y.K. (Virginia Tech.) ; Hsiung, Y.B. (Taiwan, Natl. Taiwan U.) ; Hu, B.Z. (Taiwan, Natl. Chiao Tung U.) ; Hu, L.M. (Brookhaven) ; Hu, L.J. (Beijing Normal U.) ; Hu, T. (Beijing, Inst. High Energy Phys.) ; Hu, W. (Beijing, Inst. High Energy Phys.) ; Huang, E. (Illinois U., Urbana) ; Huang, H. (Beijing, Inst. Atomic Energy) ; Huang, X.T. (Shandong U.) ; Huber, P. (Virginia Tech.) ; Hussain, G. (Tsinghua U., Beijing) ; Isvan, Z. (Brookhaven) ; Jaffe, D.E. (Brookhaven) ; Jaffke, P. (Virginia Tech.) ; Jen, K.L. (Taiwan, Natl. Chiao Tung U.) ; Jetter, S. (Beijing, Inst. High Energy Phys.) ; Ji, X.P. (Nankai U.) ; Ji, X.L. (Beijing, Inst. High Energy Phys.) ; Jiang, H.J. (Chengdu U. Of Tech.) ; Jiao, J.B. (Shandong U.) ; Johnson, R.A. (Xavier U.) ; Kang, L. (DongGuan U. Technol.) ; Kettell, S.H. (Brookhaven) ; Kramer, M. (LBL, Berkeley) ; Kwan, K.K. (Hong Kong, Chinese U.) ; Kwok, M.W. (Hong Kong, Chinese U.) ; Kwok, T. (Hong Kong U.) ; Lai, W.C. (Chengdu U. Of Tech.) ; Lau, K. (Houston U.) ; Lebanowski, L. (Tsinghua U., Beijing) ; Lee, J. (LBL, Berkeley) ; Lei, R.T. (DongGuan U. Technol.) ; Leitner, R. (Charles U.) ; Leung, A. (Hong Kong U.) ; Leung, J.K.C. (Hong Kong U.) ; Lewis, C.A. (Wisconsin U., Madison) ; Li, D.J. (Hefei, CUST) ; Li, F. (Beijing, Inst. High Energy Phys.) ; Li, G.S. (Shanghai, Jiao Tong U.) ; Li, Q.J. (Beijing, Inst. High Energy Phys.) ; Li, W.D. (Beijing, Inst. High Energy Phys.) ; Li, X.N. (Beijing, Inst. High Energy Phys.) ; Li, X.Q. (Nankai U.) ; Li, Y.F. (Beijing, Inst. High Energy Phys.) ; Li, Z.B. (Zhongshan U.) ; Liang, H. (Hefei, CUST) ; Lin, C.J. (LBL, Berkeley) ; Lin, G.L. (Taiwan, Natl. Chiao Tung U.) ; Lin, P.Y. (Taiwan, Natl. Chiao Tung U.) ; Lin, S.K. (Houston U.) ; Lin, Y.C. (Chengdu U. Of Tech.) ; Ling, J.J. (Illinois U., Urbana) ; Link, J.M. (Virginia Tech.) ; Littenberg, L. (Brookhaven) ; Littlejohn, B.R. (Xavier U.) ; Liu, D.W. (Houston U.) ; Liu, H. (Houston U.) ; Liu, J.L. (Shanghai, Jiao Tong U.) ; Liu, J.C. (Beijing, Inst. High Energy Phys.) ; Liu, S.S. (Hong Kong U.) ; Liu, Y.B. (Beijing, Inst. High Energy Phys.) ; Lu, C. (Princeton U.) ; Lu, H.Q. (Beijing, Inst. High Energy Phys.) ; Luk, K.B. (UC, Berkeley) ; Ma, Q.M. (Beijing, Inst. High Energy Phys.) ; Ma, X.Y. (Beijing, Inst. High Energy Phys.) ; Ma, X.B. (Beijing, North China Elec. Power U.) ; Ma, Y.Q. (Beijing, Inst. High Energy Phys.) ; McDonald, K.T. (Princeton U.) ; McFarlane, M.C. (Wisconsin U., Madison) ; McKeown, R.D. (William-Mary Coll.) ; Meng, Y. (Virginia Tech.) ; Mitchell, I. (Houston U.) ; Kebwaro, J.Monari (Xian Jiaotong U.) ; Nakajima, Y. (LBL, Berkeley) ; Napolitano, J. (Temple U.) ; Naumov, D. (Dubna, JINR) ; Naumova, E. (Dubna, JINR) ; Nemchenok, I. (Dubna, JINR) ; Ngai, H.Y. (Hong Kong U.) ; Ning, Z. (Beijing, Inst. High Energy Phys.) ; Ochoa-Ricoux, J.P. (LBL, Berkeley) ; Olshevski, A. (Dubna, JINR) ; Patton, S. (LBL, Berkeley) ; Pec, V. (Charles U.) ; Peng, J.C. (Illinois U., Urbana) ; Piilonen, L.E. (Virginia Tech.) ; Pinsky, L. (Houston U.) ; Pun, C.S.J. (Hong Kong U.) ; Qi, F.Z. (Beijing, Inst. High Energy Phys.) ; Qi, M. (Nanjing U.) ; Qian, X. (Brookhaven) ; Raper, N. (Rensselaer Poly.) ; Ren, B. (DongGuan U. Technol.) ; Ren, J. (Beijing, Inst. Atomic Energy) ; Rosero, R. (Brookhaven) ; Roskovec, B. (Charles U.) ; Ruan, X.C. (Beijing, Inst. Atomic Energy) ; Shao, B.B. (Tsinghua U., Beijing) ; Steiner, H. (UC, Berkeley) ; Sun, G.X. (Beijing, Inst. High Energy Phys.) ; Sun, J.L. (CGNPC, Shenzhen) ; Tam, Y.H. (Hong Kong, Chinese U.) ; Tang, X. (Beijing, Inst. High Energy Phys.) ; Themann, H. (Brookhaven) ; Tsang, K.V. (LBL, Berkeley) ; Tsang, R.H.M. (Caltech) ; Tull, C.E. (LBL, Berkeley) ; Tung, Y.C. (Taiwan, Natl. Taiwan U.) ; Viren, B. (Brookhaven) ; Vorobel, V. (Charles U.) ; Wang, C.H. (Natl. United U., Taiwan) ; Wang, L.S. (Beijing, Inst. High Energy Phys.) ; Wang, L.Y. (Beijing, Inst. High Energy Phys.) ; Wang, M. (Shandong U.) ; Wang, N.Y. (Beijing Normal U.) ; Wang, R.G. (Beijing, Inst. High Energy Phys.) ; Wang, W. (William-Mary Coll.) ; Wang, W.W. (Nanjing U.) ; Wang, X. (Natl. U. Defense Tech., Hunan) ; Wang, Y.F. (Beijing, Inst. High Energy Phys.) ; Wang, Z. (Tsinghua U., Beijing) ; Wang, Z. (Beijing, Inst. High Energy Phys.) ; Wang, Z.M. (Beijing, Inst. High Energy Phys.) ; Webber, D.M. (Wisconsin U., Madison) ; Wei, H.Y. (Tsinghua U., Beijing) ; Wei, Y.D. (DongGuan U. Technol.) ; Wen, L.J. (Beijing, Inst. High Energy Phys.) ; Whisnant, K. (Iowa State U.) ; White, C.G. (IIT, Chicago) ; Whitehead, L. (Houston U.) ; Wise, T. (Wisconsin U., Madison) ; Wong, H.L.H. (UC, Berkeley) ; Wong, S.C.F. (Hong Kong, Chinese U.) ; Worcester, E. (Brookhaven) ; Wu, Q. (Shandong U.) ; Xia, D.M. (Beijing, Inst. High Energy Phys.) ; Xia, J.K. (Beijing, Inst. High Energy Phys.) ; Xia, X. (Shandong U.) ; Xing, Z.Z. (Beijing, Inst. High Energy Phys.) ; Xu, J.Y. (Hong Kong, Chinese U.) ; Xu, J.L. (Beijing, Inst. High Energy Phys.) ; Xu, J. (Beijing Normal U.) ; Xu, Y. (Nankai U.) ; Xue, T. (Tsinghua U., Beijing) ; Yan, J. (Xian Jiaotong U.) ; Yang, C.C. (Beijing, Inst. High Energy Phys.) ; Yang, L. (DongGuan U. Technol.) ; Yang, M.S. (Beijing, Inst. High Energy Phys.) ; Yang, M.T. (Shandong U.) ; Ye, M. (Beijing, Inst. High Energy Phys.) ; Yeh, M. (Brookhaven) ; Yeh, Y.S. (Taiwan, Natl. Chiao Tung U.) ; Young, B.L. (Iowa State U.) ; Yu, G.Y. (Nanjing U.) ; Yu, J.Y. (Tsinghua U., Beijing) ; Yu, Z.Y. (Beijing, Inst. High Energy Phys.) ; Zang, S.L. (Nanjing U.) ; Zeng, B. (Chengdu U. Of Tech.) ; Zhan, L. (Beijing, Inst. High Energy Phys.) ; Zhang, C. (Brookhaven) ; Zhang, F.H. (Beijing, Inst. High Energy Phys.) ; Zhang, J.W. (Beijing, Inst. High Energy Phys.) ; Zhang, Q.M. (Xian Jiaotong U.) ; Zhang, Q. (Chengdu U. Of Tech.) ; Zhang, S.H. (Beijing, Inst. High Energy Phys.) ; Zhang, Y.C. (Hefei, CUST) ; Zhang, Y.M. (Tsinghua U., Beijing) ; Zhang, Y.H. (Beijing, Inst. High Energy Phys.) ; Zhang, Y.X. (CGNPC, Shenzhen) ; Zhang, Z.J. (DongGuan U. Technol.) ; Zhang, Z.Y. (Beijing, Inst. High Energy Phys.) ; Zhang, Z.P. (Hefei, CUST) ; Zhao, J. (Beijing, Inst. High Energy Phys.) ; Zhao, Q.W. (Beijing, Inst. High Energy Phys.) ; Zhao, Y. (William-Mary Coll.) ; Zhao, Y.B. (Beijing, Inst. High Energy Phys.) ; Zheng, L. (Hefei, CUST) ; Zhong, W.L. (Beijing, Inst. High Energy Phys.) ; Zhou, L. (Beijing, Inst. High Energy Phys.) ; Zhou, Z.Y. (Beijing, Inst. Atomic Energy) ; Zhuang, H.L. (Beijing, Inst. High Energy Phys.) ; Zou, J.H. (Beijing, Inst. High Energy Phys.)

Abstract: 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 2.9 GW$_{th}$ reactors, the rate deficit observed at the far hall is interpreted as $\sin^22\theta_{13}=0.083\pm0.018$ in the three-flavor oscillation model. When combined with the gadolinium-capture result from Daya Bay, we obtain $\sin^22\theta_{13}=0.089\pm0.008$ as the final result for the six-antineutrino-detector configuration of the Daya Bay experiment.

Web-Page: http://inspirehep.net/record/1303107/files/Dist.png; http://inspirehep.net/record/1303107/files/FNRatio.png; http://inspirehep.net/record/1303107/files/Short3.png; http://inspirehep.net/record/1303107/files/arXiv:1406.6468.pdf


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