RUI: Measurement of the Electron ELectric-Dipole Moment Using Cs and Rb Magnetometers

RUI：使用 Cs 和 Rb 磁力计测量电子偶极矩

• 批准号: 9722611
• 负责人: Larry Hunter
• 金额: $ 30.73万
• 依托单位: Amherst College
• 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: 1997-07-01 至 2001-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9722611&HistoricalAwards=false
• 关键词: RUI; Measurement; Electron; ELectric; Dipole

This work will continue experiments to measure the electric dipole moment of the cesium atom, and from that the electric dipole moment (edm) of the electron, as a test of time- reversal symmetry. These experiments, relying on a newly- developed dual magnetometer, should improve the precision of the existing edm measurement in cesium by two orders of magnitude. This would give a resulting sensitivity to an electron edm of 10-28e-cm. If this is achieved, this new measurement would constitute the most stringent limit on an electron edm and would significantly constrain particle physics beyond the standard model.

这项工作将继续实验，以测量铯原子的电偶极矩，并从电子的电偶极矩（edm），作为时间反演对称性的测试。 这些实验，依靠一个新开发的双磁强计，应提高精度的现有edm测量铯两个数量级。 这将给出对10- 28 e-cm的电子edm的所得灵敏度。 如果实现了这一点，这种新的测量将构成对电子edm的最严格限制，并将大大限制粒子物理超出标准模型。