Three-loop corrections to lamb shift in positronium: Electron factor and polarization
Three-loop corrections to lamb shift in positronium: Electron factor and polarization
复制标题
正电子素中羔羊位移的三环校正：电子因子和极化
DOI：
10.1016/j.physletb.2022.137247
复制
发表时间：
2022
影响因子：
4.4
通讯作者：
Shelyuto, Valery A.
中科院分区：
文献类型：
--
作者：
Eides, Michael I.;Shelyuto, Valery A.
计算了由费米子线和交换光子中的单环辐射插入的双光子交换图生成的正电子能级的硬自旋无关三环辐射贡献。这是受新一代正电子素精确 1 S− 2 S 和 2 S− 2 P 测量启发，计算所有 m α 7 阶校正的下一步。
Hard spin-independent three-loop radiative contributions to energy levels in positronium generated by the two-photon-exchange diagrams with one-loop radiative insertions in the fermion lines and exchanged photons are calculated. This is a next step in calculations of all corrections of order m α 7 inspired by the new generation of precise 1 S− 2 S and 2 S− 2 P measurements in positronium.