Two-loop corrections to Lamb shift and hyperfine splitting in hydrogen via multi-loop methods
Abstract We revisit the contributions of order α 2(Zα)5 m and α 2(Zα)E F , respectively, to the Lamb shift and to the hyperfine splitting from mixed self-energy-vacuum-polarization diagrams, involving fermionic loop. We use modern multi-loop calculation techniques based on IBP reduction and differen...
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| Hauptverfasser: | , |
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| Format: | Artigo |
| Sprache: | Inglês |
| Veröffentlicht: |
SpringerOpen
2023-07-01
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| Schriftenreihe: | Journal of High Energy Physics |
| Schlagworte: | |
| Online-Zugang: | https://doi.org/10.1007/JHEP07(2023)211 |
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