Weak Interactions in Atomic Physics

在重的、多电子的原子中对宇称禁止跃迁振幅进行高精度计算，以提供对标准模型的辐射修正的测试。修正对目前未知的顶夸克质量不敏感，这使得对新物理的探测变得敏感。许多体摄动理论和耦合簇技术，包括三重激励，需要执行计算到的精度。在Cs原子中占1%此外，我们还将对高电荷离子中所筛选的兰姆位移进行计算，以便为在少数价电子原子系统中与实验QED辐射修正进行比较提供信息。

High accuracy calculations of parity forbidden transition amplitudes in heavy, many--electron atoms are undertaken to provide a test of radiative corrections to the Standard Model. The corrections are insensitive to the presently unknown mass of the top quark, which allows a sensitive probe of the new physics. Many body perturbation theory and coupled cluster techniques, including triple excitations are required to perform the calculations to an accuracy of .1% in the Cs atom. In addition, a calculation of the screened Lamb shift in highly charged ions will be undertaken in order to provide information to compare with experimental QED radiative corrections in few valence electron atomic systems.