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Recent Results from Daya Bay

High Energy Physics - Experiment 2019-08-13 v1 Instrumentation and Detectors

Abstract

The Daya Bay reactor neutrino experiment observed electron antineutrino disappearance associated with θ13\theta_{13} with a significance better than 5σ5\sigma in 2012. The final two of eight antineutrino detectors were installed in the summer of 2012. Including the 404 days of data collected with the full detector configuration resulted in a 3.6 times increase of statistics over the previous result with the 6-AD configuration. With improvements of the systematic uncertainties and better estimation of backgrounds, Daya Bay has measured sin22θ13=0.084±0.005\sin^22\theta_{13} = 0.084\pm0.005 and Δmee2=2.420.11+0.10×103|\Delta m^2_{ee}|=2.42^{+0.10}_{-0.11}\times 10^{-3}~eV2^2. This is the most precise measurement of sin22θ13\sin^22\theta_{13} to date and the most precise measurement of of Δmee2|\Delta m^2_{ee}| via electron antineutrino disappearance. Several other analysis results are presented, including an independent measurement of θ13\theta_{13} using inverse-beta decays associated with neutron capture on hydrogen, a measurement of reactor antineutrino flux and spectrum, and a search for light sterile neutrino mixing.

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Cite

@article{arxiv.1506.01149,
  title  = {Recent Results from Daya Bay},
  author = {Liang Zhan},
  journal= {arXiv preprint arXiv:1506.01149},
  year   = {2019}
}

Comments

Proceedings for NEUTEL 2015

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