Speaker
Description
Daya Bay is an international neutrino reactor experiment in southern China. Eight identical gadolinium-doped liquid scintillator detectors located in three experimental halls at different distances from 360 m to 1900 m from the nuclear power plant reactors have collected a unique sample of more than 5.5 million electron-antineutrino interactions between 2011 and 2020. The high-precision determination of the neutrino energy spectra by different detectors allows by far the most accurate measurement of the smallest mixing angle θ13 and also the measurement of the large difference of neutrino masses Δm2 with the same precision as in accelerator neutrino experiments. The huge number of interactions recorded and the time evolution of the fuel in the reactors allowed the first measurements of neutrino spectra from nuclear fission of the isotopes 235U and 239Pu. The results of the Daya Bay experiment have also contributed to constraining the parameters of possible sterile neutrinos.
