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| 題名: | Measurement of the reactor antineutrino flux and spectrum at Daya Bay |
| 作者: | 彭仁傑;An, F. P.;Balantekin, A. B.;Bishai, M.;Blyth, S.;Cao, G. F.;Cao, J.;Chang, L. C.;Chang, Y.;Chen, H. S.;Chen, S. M.;Chen, Y. X.;Chen, Y.;Cheng, J.;Cherwinka, J. J.;Chu, M. C.;de Arcos, J.;Ding, Y. Y.;Diwan, M. V.;Dove, J.;Gong, G. H.;Gong, H.;Guo, L.;He, M.;Higuera, A.;Hor, Y. K.;Hsiung, Y. B.;Huang, E. C.;Huang, X. T.;Huber, P.;Jaffe, D. E.;Jaffke, P.;Ji, X. P.;Jiao, J. B.;Kang, L.;Kettell, S. H.;Kramer, M.;Kwan, K. K.;Langford, T. J.;Lebanowski, L.;Lee, J.;Lei, R. T.;Leung, K. Y.;Leung, J. K. C.;Lewis, C. A.;Li, Q. J.;Li, X. N.;Li, X. Q.;Li, Z. B.;Lin, G. L.;Ling, J. J.;Littlejohn, B. R.;Liu, H.;Liu, J. L.;Lu, C.;Lu, H. Q.;Lu, J. S.;Ma, Q. M.;Ma, X. B.;Ma, Y. Q.;Naumov, D.;Pan, H.-R.;Park, J.;Peng, J. C.;Pinsky, L.;Pun, C. S. J.;Qi, F. Z.;Qi, M.;Qian, X.;Raper, N.;Ren, J.;Shao, B. B.;Sun, G. X.;Tang, W.;Tsang, K. V.;Tung, Y. C.;Wang, M.;Wang, R. G.;Wang, Y. F.;Wang, Z. M.;Wei, H. Y.;Wen, L. J.;White, C. G.;Whitehead, L.;Wong, H. L. H.;Wong, S. C. F.;Xing, Z. Z.;Xu, Y.;Yang, C. G.;Ye, M.;Young, B. L.;Zhang, C.;Zhang, H. H.;Zhang, Y. M.;Zhang, Y. X.;Zhao, Y. F.;Zhao, Y. B.;Zheng, L.;Zhong, W. L.;Zhou, N.;Zou, J. H. |
| 貢獻者: | 高能與強場物理研究中心 |
| 關鍵詞: | antineutrino flux;Antineutrinos;Daya Bay;Energy measurement;energy spectrum;Flux;Mathematical models;Nuclear engineering;Nuclear power generation;Nuclear reactor components;Nuclear reactors;reactor |
| 日期: | 2016-02-12 |
| 上傳時間: | 2026-04-23 12:04:24 (UTC+8) |
| 出版者: | American Physical Society;United States: American Physical Society (APS) |
| 摘要: | 摘要： This Letter reports a measurement of the flux and energy spectrum of electron antineutrinos from six 2.9 GWth 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 β decay (IBD) candidates were detected in the near and far halls, respectively. The measured IBD yield is (1.55±0.04) ×10(-18) cm(2) GW(-1) day(-1) or (5.92±0.14) ×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 2σ over the full energy range with a local significance of up to ∼4σ between 4-6 MeV. A reactor antineutrino spectrum of IBD reactions is extracted from the measured positron energy spectrum for model-independent predictions.
其他題名： Phys Rev Lett
出版者： United States: American Physical Society (APS)
出版日期： 2016-02-12
出處： Physical Review Letters, 2016-02, Vol.116 (6), p.061801, Article 061801
資源來源： American Physical Society Journals
識別號： ISSN: 0031-9007
識別號： ISSN: 1079-7114
識別號： ISSN: 1092-0145
識別號： EISSN: 1079-7114
識別號： DOI: 10.1103/physrevlett.116.061801
識別號： PMID: 26918980 |
| 顯示於類別: | [高能與強場物理研究中心] 期刊論文
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