论文标题
辐射$ \ bm {α^7m} $ QED对氦羔羊换档的贡献
Radiative $\bm{α^7m}$ QED contribution to the helium Lamb shift
论文作者
论文摘要
我们提出了$α^7M $的最后一个未知部分对两电子原子的羔羊移位的贡献，该剂量是由辐射QED效应诱导的，这是由Bethe Googarithm以外的。该推导是在非递归量子电动力学的框架中执行的，对三重态（spin $ s = 1 $）的原子状态有效。获得的公式不含任何差异，适合进行数值评估。这为氦气中$α^7M $ QED效应的$α^7M $ QED效应的完整计算打开了一种方法，这将可以准确地从氦转变频率的测量值中确定核电荷半径。
We present a derivation of the last unknown part of the $α^7m$ contribution to the Lamb shift of a two-electron atom, induced by the radiative QED effects beyond the Bethe logarithm. This derivation is performed in the framework of nonrelativistic quantum electrodynamics and is valid for the triplet (spin $S = 1$) atomic states. The obtained formulas are free from any divergences and are suitable for a numerical evaluation. This opens a way for a complete numerical calculation of the $α^7m$ QED effects in helium, which will allow an accurate determination of the nuclear charge radius from measurements of helium transition frequencies.
