新华鲜报|捕捉“幽灵粒子” 江门中微子实验测量精度创新高

Core Insights - The Jiangmen Neutrino Experiment has successfully measured two parameters describing neutrino oscillation with a precision 1.5-1.8 times better than previous experiments, marking a significant advancement in neutrino research [1][2] - The experiment's performance has met or exceeded design expectations, bringing humanity closer to determining the mass hierarchy of neutrinos [1] Group 1: Experiment Overview - The Jiangmen Neutrino Experiment is designed to capture "ghost particles" known as neutrinos, utilizing a detector that contains 20,000 tons of liquid scintillator housed in the world's largest organic glass sphere, increasing the volume by 20 times compared to existing facilities [2] - The experiment has been operational for two months, analyzing data from August 26 to November 2, totaling 59 days of effective data collection [1] Group 2: Scientific Significance - Neutrinos are fundamental particles that play a crucial role in understanding the evolution of the universe, yet they are extremely difficult to detect due to their minuscule mass and weak interaction with matter [1] - The project team aims to collaborate closely with global scientists to produce original scientific results with significant impact [3]