RUI: High-Precision Atomic Structure Measurements and Tests of Fundamental Physics

RUI：高精度原子结构测量和基础物理测试

• 批准号: 0555552
• 负责人: Protik Majumder
• 金额: --
• 依托单位: Williams College
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-07-01 至 2010-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0555552&HistoricalAwards=false
• 关键词: RUI; Precision; Atomic; Structure; Measurements

This experimental research program will continue a series of relatively small-scale experiments using lasers and atoms, which will address fundamental questions about physics of the electroweak interaction as well as other possible symmetry-violating interactions. Experiments will be undertaken in atomic systems of potential importance to electroweak tests such as lead. These experiments make use of diode laser systems and thallium samples in heated vapor cells as well as an atomic beam apparatus. In an extension of these measurements, the thallium atomic beam apparatus, high-voltage field plates, and existing laser system are being used to pursue a new experimental search for a possible time-reversal-violating (but parity conserving) long-range interaction. Proof-of-principle tests of this new experimental apparatus have demonstrated sufficient sensitivity to set important new limits on this class of potential symmetry-violating interactions. The broader impact of the program involves the commitment to a quality undergraduate research experience.

该实验研究计划将使用激光和原子继续进行一系列相对较小的实验，该实验将解决有关电子相互作用物理的基本问题以及其他可能的对称性竞争相互作用。实验将在对电牵引测试（例如铅）的潜在重要性的原子系统中进行。这些实验利用加热蒸气细胞中的二极管激光系统和thallium样品以及原子束设备。在这些测量值的扩展过程中，thallium原子束设备，高压田间板和现有激光系统被用于追求新的实验搜索，以进行可能的时间反转（但要保存平均值）远程相互作用。该新实验设备的原理检验证明了足够的灵敏度，可以对这类潜在的对称侵入性相互作用设定重要的新限制。该计划的更广泛影响涉及对质量本科研究经验的承诺。