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.

该实验研究计划将继续使用激光和原子进行一系列相对小规模的实验，这将解决有关电弱相互作用以及其他可能的对称破坏相互作用的物理基本问题。实验将在对弱电测试具有潜在重要性的原子系统（例如铅）中进行。这些实验利用二极管激光系统和加热蒸汽室中的铊样品以及原子束装置。在这些测量的扩展中，铊原子束装置、高压场板和现有的激光系统被用来进行新的实验研究，寻找可能的时间反转破坏（但宇称守恒）的长程相互作用。这种新实验装置的原理验证测试已经证明了足够的灵敏度，可以对这类潜在的对称性破坏相互作用设定重要的新限制。该计划更广泛的影响涉及对优质本科生研究体验的承诺。