The Daya Bay Reactor Neutrino Experiment ran in southern China from 2011 to 2020, during which time it recorded one of the world's largest samples of reactor antineutrinos, totaling some 5.5~million events, in addition to a sizable collection of cosmic rays and radioactive decays. Daya Bay's flagship measurement of the mixing angle θ₁₃ will likely remain the most precise for the foreseeable future, enabling upcoming efforts to reveal the neutrino mass hierarchy and to discover leptonic CP violation, while the simultaneous extraction of the effective mass-squared splitting Δm²ₑₑ agrees with complementary measurements from accelerator and atmospheric neutrino experiments, lending strong support to the 3-flavor mixing model. This talk will provide an overview of this analysis, which was recently updated to make use of our full dataset and to incorporate improvements to a number of systematic uncertainties. Additional results will also be highlighted on such topics as sterile neutrinos, reactor antineutrino spectra, neutrinos correlated with gravitational waves, and seasonal variation of the atmospheric muon flux.
Join from PC, Mac, Linux, iOS or Android: https://stanford.zoom.us/j/98973156241?pwd=cEU5RFdlVXoyc0JTeTlDMkozKzQ5UT09
Federico Bianchini, Yifan Chen
(fbianc@slac, cyifan@slac)
