地下700米，中国科学家正在探寻宇宙演化的奥秘

Core Viewpoint - The article discusses the significance of neutrinos in particle physics and highlights the recent achievements of the Jiangmen Neutrino Experiment, which has made substantial advancements in understanding neutrinos and their properties [1][3][5]. Group 1: Neutrino Characteristics and Misconceptions - Neutrinos are fundamental particles that are ubiquitous in the universe, with each person generating approximately 5,000 neutrinos per second [3]. - The claim that neutrinos could cause a catastrophic event on Earth, as depicted in movies, is scientifically unfounded due to their weak interaction with matter [3]. Group 2: Jiangmen Neutrino Experiment - The Jiangmen Neutrino Experiment features the world's largest liquid scintillator detector, constructed with nearly 1,000 tons of stainless steel, 263 pieces of acrylic, 20,000 tons of liquid scintillator, 40,000 tons of ultra-pure water, and 45,000 photomultiplier tubes [7][8]. - Within just 59 days of operation, the experiment reported its first results, achieving a precision increase of 1.5 to 1.8 times in measuring the oscillation frequency and amplitude of solar neutrinos compared to the highest precision from the past 50 years [8]. Group 3: Future Directions and Innovations - A new neutrino experiment is being developed near the Taishan Nuclear Power Plant, which aims to provide reference data for the Jiangmen Neutrino Experiment and features the world's only low-temperature liquid scintillator detector [10][12]. - Despite challenges faced during the setup, the team remains optimistic about the project's potential, emphasizing that even with minor losses in precision, the Taishan experiment will still be among the best globally [12].