First corrections to hyperfine splitting and the Lamb shift induced by diagrams with two external photons and second-order radiative insertions in the electron line
Journal Article
·
· Physics of Atomic Nuclei
OSTI ID:28528
- Konstantinov Institute of Nuclear Physics, Gatchina (Russian Federation)
- Mendeleev Institute of Metrology, St. Petersburg (Russian Federation)
Contributions to hyperfine splitting (HFS) and to the Lamb shift on the order of {alpha}{sup 2}(Z{alpha}){sup 5} induced by graphs with two radiative photons inserted into the electron line are considered. It is shown that this gauge-invariant set of diagrams, which give corrections of the considered order, consists of nineteen topologically different diagrams. Contributions to both HFS and the Lamb shift induced by graphs containing the one-loop electron self-energy as a subgraph and by the graph containing two one-loop vertices are obtained. 15 refs., 3 figs.
- OSTI ID:
- 28528
- Journal Information:
- Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 7 Vol. 57; ISSN 1063-7788; ISSN PANUEO
- Country of Publication:
- United States
- Language:
- English
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