江门中微子实验大科学装置正式运行

Core Insights - The Jiangmen Underground Neutrino Observatory (JUNO) has successfully completed the infusion of 20,000 tons of liquid scintillator and has officially begun data collection, marking a significant milestone in particle physics research [1][2] - This facility is the first of its kind in the world to operate as a large-scale and high-precision neutrino-specific scientific apparatus, aimed at addressing the fundamental question of neutrino mass ordering [1][2] Group 1 - The JUNO experiment is a major international collaboration led by the Institute of High Energy Physics of the Chinese Academy of Sciences, involving approximately 700 researchers from 74 institutions across 17 countries and regions [2] - The detector is located 700 meters underground in Jiangmen, Guangdong Province, and is capable of detecting neutrinos produced by nearby nuclear power plants, as well as those from solar, supernova, atmospheric, and terrestrial sources [1] - The successful operation of JUNO is expected to pave the way for determining the mass hierarchy of neutrinos, which is a fundamental parameter influencing the evolution of the universe [1][2]