“超级眼睛”捕捉“幽灵粒子”测量精度提升1.5至1.8倍

Core Insights - The Jiangmen Neutrino Experiment (JUNO) has achieved significant milestones in neutrino physics, measuring two key oscillation parameters with unprecedented precision, surpassing international standards by 1.5 to 1.8 times in just two months [5][6][7]. Group 1: Experiment Overview - The Jiangmen Neutrino Experiment is designed to detect neutrinos, often referred to as "ghost particles," and is set to officially begin data collection on August 26, 2025 [5][6]. - The experiment's core detector, located 700 meters underground, has a total mass of 20,000 tons and includes a 41.1-meter diameter stainless steel shell and a 35.4-meter diameter acrylic sphere [8][9]. - The project has been in development for over a decade, receiving support from the Chinese Academy of Sciences and international collaborations [10][11]. Group 2: Scientific Achievements - The first results from JUNO indicate that the detector's performance metrics have met or exceeded design expectations, enabling advanced research in neutrino physics [9][12]. - The experiment aims to determine the mass hierarchy of three types of neutrinos and to explore potential new physics beyond the current particle physics standard model [7][9][14]. - JUNO's measurements have confirmed discrepancies in previous solar neutrino experiments, suggesting the possibility of new physical laws [7][15]. Group 3: Future Implications - JUNO is expected to lead the field of neutrino physics for the coming years, with a design lifespan of 30 years and potential upgrades for further experiments [9][12]. - The experiment will not only focus on neutrino mass ordering but also on precise measurements of oscillation parameters and studies of solar, supernova, atmospheric, and terrestrial neutrinos [9][14]. - The research conducted at JUNO is anticipated to yield significant scientific contributions and foster the development of the next generation of physicists [12][14].