Parity and Time Reversal Tests in Atoms

原子宇称和时间反转测试

• 批准号: 9732513
• 负责人: Norval Fortson
• 金额: $ 84.54万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-07-01 至 2001-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9732513&HistoricalAwards=false
• 关键词: Parity; Time; Reversal; Tests; Atoms

This work continues recent advances in atomic physics experiments designed to find and measure violations of parity and time-reversal symmetries. A new laser source and other improvements to the measurement of the electron dipole moment in mercury should make an exacting test of low energy supersymmetry and other models in which T-violation should occur naturally. An improvement of the measurement of parity violation in thallium, as observed through optical rotation, from a 1% to a 0.3% accuracy is sought. Finally, the first steps in a PNC measurement in the barium plus ion are being undertaken, with the long-term goal being a decisive atomic test of electroweak physics complementary to the best high energy accelerator tests.

这项工作延续了原子物理实验的最新进展，旨在发现和测量违反宇称和时间反演对称性。 一种新的激光源和其他改进的测量汞中的电子偶极矩应该做一个严格的测试低能量超对称性和其他模型中的T破坏应该自然发生。 通过旋光观测到的铊的宇称违反的测量精度从1%提高到0.3%。 最后，PNC测量钡+离子的第一步正在进行中，长期目标是对电弱物理进行决定性的原子测试，以补充最好的高能加速器测试。