Speaker
Description
JUNO, the Jiangmen Underground Neutrino Observatory, is a 20 kton liquid scintillator neutrino oscillation experiment in southern China. The experiment started taking data in 2025.
The experiment has many goals and ambitions e.g. determining the neutrino mass hierarchy, measurement of the oscillation parameters with unprecedent precision. In its rich physics program precise determining energy response of the liquid scintillator is crucial.
The amount of light emitted from the scintillator is not exactly linearly proportional to the energy deposited in it, the light yield behaves nonlinearly. This is due to the Birk’s quenching effect and also, for higher energies, due to the Cherenkov radiation.
This work introduces the JUNO experiment, its first results and focuses on the observation of nonlinear response from the liquid scintillator using Compton scattering and on the extraction of the Birk’s quenching parameter kB