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Latest oscillation results from Daya Bay

High Energy Physics - Experiment 2024-10-02 v1

Abstract

The Daya Bay reactor neutrino experiment, which pioneered the measurement of a non-zero value for the neutrino mixing angle θ13\theta_{13} in 2012, operated for nearly nine years, from Nov.~24, 2011, to Dec.~12, 2020. Antineutrinos produced by six reactors, each with a thermal power of 2.9 GW, were detected by eight identically designed detectors located in two near and one far underground experimental halls. The experimental setup, featuring kilometer-scale baselines between the detectors and reactors, enabled precise investigations within the three-neutrino mixing framework. This proceeding presents the latest measurements of the neutrino mixing angle θ13\theta_{13} and the mass-squared difference Δm322\Delta m_{32}^2, based on samples tagged via gadolinium capture (nnGd) and hydrogen capture (nnH). The combined results from Daya Bay's most recent nnGd and nnH data sets provide a 2.6%2.6\% precision for sin22θ13\sin^22\theta_{13}. Additionally, a search for light sterile neutrinos with full data set is summarized.

Keywords

Cite

@article{arxiv.2410.00738,
  title  = {Latest oscillation results from Daya Bay},
  author = {Jinjing Li},
  journal= {arXiv preprint arXiv:2410.00738},
  year   = {2024}
}
R2 v1 2026-06-28T19:03:54.825Z