论文标题
非辐射性$α^7M $ QED效果在氦三重态的羔羊换档状态下
Nonradiative $α^7m$ QED effects in Lamb shift of helium triplet states
论文作者
论文摘要
氦气转移的理论预测受到$α^7M $的未知量子电动动力效应的限制，其中$α$是良好的结构常数，而$ m $是电子质量。我们通过得出最具挑战性的部分来朝着这些效果的完整计算迈出了重要的一步，这是由所有三个氦颗粒，两个电子和核之间的虚拟光子交换引起的。包括辐射校正在内的$α^7M $效应的完整计算将允许比较从电子和Muonic氦原子确定的核电荷半径，从而对基本相互作用的标准模型进行了严格的测试。
Theoretical predictions for the Lamb shift in helium are limited by unknown quantum electrodynamic effects of the order $α^7m$, where $α$ is the fine-structure constant and $m$ is the electron mass. We make an important step towards the complete calculation of these effects by deriving the most challenging part, which is induced by the virtual photon exchange between all three helium particles, the two electrons, and the nucleus. The complete calculation of the $α^7m$ effect including the radiative corrections will allow comparing of the nuclear charge radii determined from the electronic and muonic helium atoms and thus provide a stringent test of the Standard Model of fundamental interactions.
