Measurement of electron antineutrino oscillation based on 1230 days of operation of the daya bay experiment
文献类型：期刊论文
| 作者 | An, F. P.1; Balantekin, A. B.2; Band, H. R.3; Bishai, M.4; Blyth, S.5,6; Cao, D.7; Cao, G. F.8; Cao, J.8; Cen, W. R.8; Chan, Y. L.9 |
| 刊名 | Physical review d
 |
| 出版日期 | 2017-04-06 |
| 卷号 | 95期号:7页码:46 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/physrevd.95.072006 |
| 通讯作者 | An, f. p.() |
| 英文摘要 | A measurement of electron antineutrino oscillation by the daya bay reactor neutrino experiment is described in detail. six 2.9-gwth nuclear power reactors of the daya bay and ling ao nuclear power facilities served as intense sources of nu((e) over bar)'s. comparison of the (v) over bare rate and energy spectrum measured by antineutrino detectors far from the nuclear reactors (similar to 1500-1950 m) relative to detectors near the reactors (similar to 350-600 m) allowed a precise measurement of (v) over bar (e) disappearance. more than 2.5 million (v) over bar (e) inverse beta-decay interactions were observed, based on the combination of 217 days of operation of six antineutrino detectors (december, 2011-july, 2012) with a subsequent 1013 days using the complete configuration of eight detectors (october, 2012-july, 2015). the (v) over bar (e) rate observed at the far detectors relative to the near detectors showed a significant deficit, r = 0.949 +/- 0.002(stat) +/- 0.002(syst). the energy dependence of (v) over bar (e) disappearance showed the distinct variation predicted by neutrino oscillation. analysis using an approximation for the three-flavor oscillation probability yielded the flavor-mixing angle sin(2)2 theta(13) = 0.0841 +/- 0.0027(stat) +/- 0.0019(syst) and the effective neutrino mass-squared difference of broken vertical bar delta m(ee)(2)vertical bar = (2.50 +/- 0.06(stat) +/- 0.06(syst)) x 10(-3) ev(2). analysis using the exact three-flavor probability found delta m(32)(2) = (2.45 +/- 0.06(stat) +/- 0.06d(syst)) x 10(-3) ev(2) assuming the normal neutrino mass hierarchy and delta m(32)(2) = (-2.56 +/- 0.06(stat) +/- 0.06(syst)) x 10(-3) ev(2) for the inverted hierarchy. |
| WOS关键词 | REACTOR NEUTRINO EXPERIMENT ; FLUX ; CALIBRATION ; SYSTEM ; DETECTORS ; LIBRARY ; DECAY ; LI-9 |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| WOS类目 | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000399391000003 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177457 |
| 专题 | 高能物理研究所 |
| 通讯作者 | An, F. P. |
| 作者单位 | 1.East China Univ Sci & Technol, Inst Modern Phys, Shanghai, Peoples R China 2.Univ Wisconsin, Madison, WI 53706 USA 3.Yale Univ, Dept Phys, New Haven, CT 06520 USA 4.Brookhaven Natl Lab, Upton, NY 11973 USA 5.Natl Taiwan Univ, Dept Phys, Taipei, Taiwan 6.Natl United Univ, Miaoli, Taiwan 7.Nanjing Univ, Nanjing, Peoples R China 8.Inst High Energy Phys, Beijing, Peoples R China 9.Chinese Univ Hong Kong, Hong Kong, Hong Kong, Peoples R China 10.Natl Chiao Tung Univ, Inst Phys, Hsinchu, Taiwan |
| 推荐引用方式 GB/T 7714 | An, F. P.,Balantekin, A. B.,Band, H. R.,et al. Measurement of electron antineutrino oscillation based on 1230 days of operation of the daya bay experiment[J]. Physical review d,2017,95(7):46. |
| APA | An, F. P..,Balantekin, A. B..,Band, H. R..,Bishai, M..,Blyth, S..,...&Zou, J. H..(2017).Measurement of electron antineutrino oscillation based on 1230 days of operation of the daya bay experiment.Physical review d,95(7),46. |
| MLA | An, F. P.,et al."Measurement of electron antineutrino oscillation based on 1230 days of operation of the daya bay experiment".Physical review d 95.7(2017):46. |
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