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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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I tiakina i:
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Ngā kaituhi matua: Petr A. Krachkov, Roman N. Lee
Hōputu: Artigo
Reo:Inglês
I whakaputaina: SpringerOpen 2023-07-01
Rangatū:Journal of High Energy Physics
Ngā marau:
Urunga tuihono:https://doi.org/10.1007/JHEP07(2023)211
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