A Large Scale Dark-Matter Axion Search

大规模暗物质轴子搜索

• 批准号: 9600014
• 负责人: John Clarke
• 金额: $ 28.19万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-03-15 至 2001-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9600014&HistoricalAwards=false
• 关键词: Large; Scale; Dark; Matter; Axion

The axion is one of many particles in physics which are believed to exist for theoretical reasons but which have never been detected experimentally. This grant will enable the development of search techniques which will either reveal the existence of the axion or rule it out. The axion could play a role in two of the most important problems in particle physics. First, the axion could make up the `cold dark matter` of the universe. Much of the mass of the universe may be in the form of `cold dark matter which is not directly detectable. Second, the axion's existence would explain why the strong force conserves certain symmetries of nature while the weak force does not.

轴子是物理学中的许多粒子之一，它们被认为存在于理论上，但从未被实验检测到。 这项拨款将使研究技术的发展能够揭示轴子的存在或排除它。 轴子可能在粒子物理学中两个最重要的问题中发挥作用。 首先，轴子可以构成宇宙的“冷暗物质”。 宇宙的大部分质量可能以“冷暗物质”的形式存在，而这种物质是无法直接探测到的。 第二，轴子的存在可以解释为什么强作用力保持了自然界的某些对称性，而弱作用力却没有。