2014•Physical Review LettersOpen access

Search for a Light Sterile Neutrino at Daya Bay

Fengpeng An, A. B. Balantekin, H. R. Band, W. Beriguete, M. Bishai, S. Blyth, Ilya Butorov, G. F. Cao, Jun Cao, Y. L. Chan, J. F. Chang, Ling-Hua Chang, Yunjia Chang, C. Chasman, H. Chen, Q. Y. Chen, S. M. Chen, Xia Chen, Xia Chen, Y. X. Chen, Y. Chen, Yaping Cheng, J. J. Cherwinka, M. C. Chu, J. P. Cummings, Jose de Arcos, Z. Y. Deng, Yayun Ding, Milind Vaman Diwan, Emily Draeger, X. F. Du, D. A. Dwyer, William R. Edwards, S. Ely, Jinghua Fu, L. Q. Ge, R. Gill, Maxim O. Gonchar, G. H. Gong, Huaibin Gong, M. Grassi, W. Gu, Mengyun Guan, X. H. Guo, R. Hackenburg, G. H. Han, Sunej K. Hans, M. He, Karsten M. Heeger, Y. K. Heng, P. Hinrichs, Y. K. Hor, Yee Bob Hsiung, Beibei Hu, Liangming Hu, L. J. Hu, T. Hu, W. Hu, E.-C. Huang, H. X. Huang, X. T. Huang, Patrick J. Huber, Ghulam Hussain, Z. Isvan, D. E. Jaffe, Patrick Jaffke, K. L. Jen, S. Jetter, Xihan Ji, X. L. Ji, H. J. Jiang, J. B. Jiao, ROBERT ALAN JOHNSON, Kang Li, S. H. Kettell, Miranda Kramer, K. K. Kwan, M. W. Kwok, Talent Kwok, Wanchang Lai, K. T. Lau, Logan Lebanowski, J. Lee, R. T. Lei, R. Leitner, A.Y.T. 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, Yufeng Li, Z. B. Li, H. Liang, C. J. Lin, G. L. Lin, P. Y. Lin, S. 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., X. Y. Ma, X. B. Ma, Y. Q. Ma, Kirk T. McDonald, M. C. McFarlane, R. D. McKeown, Yue Meng, Ian V. Mitchell, J. Monari Kebwaro, Y. Nakajima, J. Napolitano, Dmitry V. Naumov, E. Naumova, I. Nemchenok, H. Y. Ngai, Z. Ning, Juan Pedro Ochoa-Ricoux, A.G. Olshevski, S. Patton, V. Pec, J. C. Peng, L. E. Piilonen, Lawrence S. Pinsky, C. S. J. Pun, F. Z. Qi, M. Qi, X. Qian, N. Raper, B. Ren, Jing Ren, R. Rosero, B. Roskovec, Xichao Ruan, B. B. Shao, H. Steiner, G. X. Sun, Jian Sun, Y. H. Tam, X. Tang, H.W. Themann, Ka Vang Tsang, Raymond Hei-Man Tsang, C. E. Tull, Y. C. Tung, B. Viren, V. Vorobel, C. H. Wang, L. S. Wang, L. Y. Wang, Meng Wang, N. Y. Wang, R. G. Wang, W. Wang, W. W. Wang, Xiang-Gao Wang, Y. F. Wang, Z. Wang, Z. Wang, Zhimin Wang, D.M. Webber, H. Wei, Y. D. Wei, Liangjian Wen, K. Whisnant, Christopher G. White, L. Whitehead, Tom Wise, H. L. H. Wong, S. C. F. Wong, E. Worcester, Q. Wu, D. M. Xia, J. K. Xia, X. M. Xia, Zezhou Xing, Jing Xu, Jilei Xu, Jing Xu, Yupei Xu, T. Xue, J. Yan, C. C. Yang, Ling-Xia Yang, M. Yang, Madeleine Yang, M. Ye, M. Yeh, Y. S. Yeh, B. L. Young, G. Y. Yu, J. Y. Yu, Zeyuan Yu, S. L. Zang, Bai-qing Zeng, Liang Zhan, Chenmeng Zhang, Qingmin Zhang, J. W. Zhang, Qingmin Zhang, Q. Y. 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. Y. Zhao, Q. W. Zhao, Y. Zhao, Y. Zhao, L. Zheng, W. Zhong, L. Zhou, Z. Y. Zhou, H. L. Zhuang, J. H. Zou

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Abstract

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(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(-3) eV(2)<|Δm(41)(2) |< 0.3 eV(2) range. The relative spectral distortion due to the disappearance of electron antineutrinos was found to be consistent with that of the three-flavor oscillation model. The derived limits on sin(2) 2θ(14) cover the 10(-3) eV(2) ≲ |Δm(41)(2)| ≲ 0.1 eV(2) region, which was largely unexplored.

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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(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(-3) eV(2)<|Δm(41)(2) |< 0.3 eV(2) range. The relative spectral distortion due to the disappearance of electron antineutrinos was found to be consistent with that of the three-flavor oscillation model. The derived limits on sin(2) 2θ(14) cover the 10(-3) eV(2) ≲ |Δm(41)(2)| ≲ 0.1 eV(2) region, which was largely unexplored.

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Available abstract

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(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(-3) eV(2)<|Δm(41)(2) |< 0.3 eV(2) range. The relative spectral distortion due to the disappearance of electron antineutrinos was found to be consistent with that of the three-flavor oscillation model. The derived limits on sin(2) 2θ(14) cover the 10(-3) eV(2) ≲ |Δm(41)(2)| ≲ 0.1 eV(2) region, which was largely unexplored.

Key concepts: Physics, Sterile neutrino, Particle physics, Electron neutrino, Neutrino oscillation, Nuclear physics, Neutrino, Mixing (physics)

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