Observation of Electron-antineutrino Disappearance at Daya Bay

被引：5
|
作者：
Ling, Jiajie [1 ]
机构：
[1] Brookhaven Natl Lab, Upton, NY 11973 USA
来源：
11TH CONFERENCE ON THE INTERSECTIONS OF PARTICLE AND NUCLEAR PHYSICS (CIPANP 2012) | 2013年 / 1560卷
关键词：
neutrino oscillation; neutrino mixing; reactor; Daya Bay; LOADED LIQUID SCINTILLATOR; OSCILLATIONS; SPECTRA;
D O I：
10.1063/1.4826754
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The Daya Bay Reactor Neutrino Experiment has measured a nonzero value of.13 with significance of 5.2 standard deviations. Antineutrinos from six 2.9 GW(th) reactors were detected in six antineutrino detectors deployed in two near and one far underground experimental halls. With a 43,000 ton-GWth-day live-time exposure in 55 days, 10,416 (80,376) electron-antineutrino candidates were detected at the far hall (near halls). The ratio of the observed to expected number of antineutrinos at the far hall is R = 0.940 +/- 0.011(stat) +/- 0.004(syst). A rate-only analysis finds sin2 2.13 = 0.092 +/- 0.016(stat) +/- 0.005(syst) in a three-neutrino framework.
引用
收藏
页码：206 / 210
页数：5
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