Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2012-03-08
Physics
High Energy Physics
High Energy Physics - Experiment
5 figures. Version to appear in Phys. Rev. Lett
Scientific paper
The Daya Bay Reactor Neutrino Experiment has measured a non-zero value for the neutrino mixing angle $\theta_{13}$ with a significance of 5.2 standard deviations. Antineutrinos from six 2.9 GW$_{\rm th}$ reactors were detected in six antineutrino detectors deployed in two near (flux-weighted baseline 470 m and 576 m) and one far (1648 m) underground experimental halls. With a 43,000 ton-GW_{\rm th}-day livetime exposure in 55 days, 10416 (80376) 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 $R=0.940\pm 0.011({\rm stat}) \pm 0.004({\rm syst})$. A rate-only analysis finds $\sin^22\theta_{13}=0.092\pm 0.016({\rm stat})\pm0.005({\rm syst})$ in a three-neutrino framework.
An F. P.
Baha Balantekin A.
Bai J. Z.
Band H. R.
Beavis D.
No associations
LandOfFree
Observation of electron-antineutrino disappearance at Daya Bay does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Observation of electron-antineutrino disappearance at Daya Bay, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observation of electron-antineutrino disappearance at Daya Bay will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-16239