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Recent Results from the Daya Bay Neutrino Experiment

High Energy Physics - Experiment 2015-12-02 v1 Instrumentation and Detectors

Abstract

The Daya Bay neutrino experiment has recently updated the oscillation analysis results with 621 days of data in 2015, which has 3.6 times more statistics than the previous publication in 2014. The relative νˉe\bar{\nu}_{e} rate and spectrum measurement between the near and far detectors yielded the best fit values of sin22θ13\sin^{2}2\theta_{13} = 0.084 ±\pm 0.005 and Δmee2|\Delta{}m_{ee}^{2}| = (2.42 ±\pm 0.11) ×\times 103^{-3} eV2^{2}. This is currently the most precise measurement of sin22θ13\sin^{2}2\theta_{13} in the world. The measurement of Δmee2|\Delta{}m_{ee}^{2}| also has a precision that is comparable to the measurements from MINOS and T2K experiments in 2014. Daya Bay also performed several other analyses such as the search for the light sterile neutrino in the 3+1 neutrino framework, and the measurements of the absolute reactor anti-neutrino flux and spectrum.

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Cite

@article{arxiv.1512.00335,
  title  = {Recent Results from the Daya Bay Neutrino Experiment},
  author = {Wei Tang},
  journal= {arXiv preprint arXiv:1512.00335},
  year   = {2015}
}

Comments

6 pages, 6 figures. To appear in the proceedings of PPC2015, IX International Conference on Interconnections between Particle Physics and Cosmology, June 29th - July 3rd 2015, Deadwood, South Dakota