江门中微子实验大科学装置正式运行 对来自太阳、超新星、大气和地球的中微子开展前沿研究

Core Insights - The Jiangmen Neutrino Experiment (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 experiment is the first of its kind in the world, featuring a large-scale and high-precision neutrino detection facility, which aims to address the fundamental question of neutrino mass ordering [1][2] Group 1: Experiment Overview - The JUNO project is led by the Institute of High Energy Physics of the Chinese Academy of Sciences and involves 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] Group 2: Scientific Significance - Understanding the mass ordering of neutrinos is crucial as it is a fundamental parameter that influences the evolution of the universe [1] - The successful operation of JUNO will pave the way for determining neutrino masses and conducting further research in unexplored areas of physics, including the search for sterile neutrinos and proton decay [1]