Precision Measurements of Transition Amplitudes in Atomic Cesium

该项目由几个实验组成，旨在测量原子跃迁矩阵元素，这些元素对解释原子宇称不守恒（PNC）实验很重要。 这种解释需要精确的原子结构知识，并对原子结构计算的准确性提出了严格的要求。 这些新的实验，将测量绝对过渡强度高精度，应该能够确定过渡矩阵元素的值精确到0.3%，从而测试理论计算低于目前已知的水平1%。 虽然目前的测量将集中在铯，但这些技术可以扩展到其他感兴趣的原子，以测试标准模型和原子理论。

This project consists of several experiments designed to measure atomic transition matrix elements important to the interpretation of atomic parity non-conservation (PNC) experiments. This interpretation requires accurate knowledge of atomic structure and places stringent requirements on the accuracy of atomic structure calculations. These new experiments, which will measure absolute transition strengths to high precision, should be able to determine the value of transition matrix elements accurate to 0.3%, thereby testing theoretical calculations below the current known level of 1%. While the present measurements will focus on cesium, the techniques can be extended to other atoms of interest for testing the standard model and atomic theory.