Speaker
Description
We report the optimized experimental requirements to determine neutrino mass hierarchy using electron antineutrinos ( ν¯e ) generated in a nuclear reactor. The features of the neutrino mass hierarchy can be extracted from the |Δm312| and |Δm322| oscillations by applying the Fourier sine and cosine transforms to the L/E spectrum. To determine the neutrino mass hierarchy above 90% probability, the requirements on the energy resolution as a function of the baseline are studied at sin22θ13=0.1 . Suppose the energy resolution of the neutrino detector is less than 0.04/Eν and the determination probability obtained from Bayes' theorem is above 90%. In that case, the detector needs to be located around 48–53 km from the reactor(s) to measure the energy spectrum of ν¯e . These results will help set up an experiment to determine the neutrino mass hierarchy, a critical problem in neutrino physics.
