Latest Results from Neutrino Oscillation Experiment Daya Bay
The Daya Bay Reactor Neutrino Experiment was designed to measure Θ13, the smallest mixing angle in the three-neutrino mixing framework, with unprecedented precision. The experiment consists of eight identically designed detectors placed underground at different baselines from three pairs of nuclear reactors in South China. Since Dec. 2011, the experiment has been running stably for more than 7 years, and has collected the largest reactor antineutrino sample to date. Daya Bay greatly improved the precision on Θ13 and made an independent measurement of the effective mass splitting in the electron antineutrino disappearance channel. Daya Bay also performed a number of other precise measurements such as a high-statistics determination of the absolute reactor antineutrino flux and the spectrum evolution, as well as a search for the sterile neutrino mixing, among others. The most recent results from Daya Bay are discussed in this paper, as well as the current status and future prospects of the experiment.
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F.P. An et al. (Daya Bay Collaboration). Improved search for a light sterile neutrino with the full configuration of the Daya Bay experiment. Phys. Rev. Lett. 117, No. 15, 151802 (2016).
F.P. An et al. (Daya Bay Collaboration, MINOS Collaboration). Limits on active to sterile neutrino oscillations from disappearance searches in the MINOS, Daya Bay, and Bugey-3 experiments. Phys. Rev. Lett. 117, No. 15, 151801 (2016). https://doi.org/10.1103/PhysRevLett.117.209901
D. Adey. et al. (Daya Bay Collaboration). Improved measurement of the reactor antineutrino flux at Daya Bay. arXiv:1808.10836 (2018).
F.P. An et al. (Daya Bay Collaboration). Evolution of the reactor antineutrino flux and spectrum at Daya Bay. arXiv:1704.01082 (2017).
D. Adey et al. (Daya Bay Collaboration). Measurement of individual antineutrino spectra from 235U and 239Pu at Daya Bay. arXiv:1904.07812 (2019).