Observation of reactor electron antineutrinos disappearance in the RENO experiment.
By Jung Keun Ahn, S. Chebotaryov, J. Choi, Seonho Choi, Wonshik Choi, Y. Choi, H. Jang, J. Jang, E. Jeon, I. Jeong and 24 more. Physical Review Letters, 2012
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The RENO experiment has observed the disappearance of reactor electron antineutrinos, consistent with neutrino oscillations, with a significance of 4.9 standard deviations. Antineutrinos from six 2.8 GW(th) reactors at the Yonggwang Nuclear Power Plant in Korea, are detected by two identical detectors located at 294 and 1383 m, respectively, from the reactor array center. In the 229 d data-taking period between 11 August 2011 and 26 March 2012, the far (near) detector observed 17102 (154088) electron antineutrino candidate events with a background fraction of 5.5% (2.7%). The ratio of observed to expected numbers of antineutrinos in the far detector is 0.920±0.009(stat)±0.014(syst). From this deficit, we determine sin(2)2θ(13)=0.113±0.013(stat)±0.019(syst) based on a rate-only analysis.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/67a66eb8af9a6919a94eafb68b3912fd67d03c82
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In Nuclear and High Energy Physics
Citations in the corpus
- JUNO physics and detector (2021, background): “It was approved in 2013 after Daya Bay [17], Double Chooz [18], and RENO [19] measured an unexpectedly large value of θ13, which meant that the NMO could be determined with current technologies.”
- Spontaneous CP violation from vacuum alignment in S4 models of leptons (2013, background): “Recent hints [1–3] for a nonzero reactor mixing angle θ13, and its subsequent measurement by the Daya Bay [4], RENO [5] and Double Chooz [6] Collaborations have revealed an unexpectedly large mixing angle of about 9◦ to an accuracy comparable to the other two lepton mixing angles, i.”
- Neutrino Oscillations and Non-standard Interactions (2017, methodology): “The RENO experiment [5] in South Korea consists of six aligned reactor cores, equally distributed over a distance of 1.”