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Logarithmic two-loop corrections to the Lamb shift in hydrogen

Krzysztof Pachucki
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Abstract

Higher order $(α/π)^2 (Z α)^6$ logarithmic corrections to the hydrogen Lamb shift are calculated. The results obtained show the two-loop contribution has a very peculiar behavior, and significantly alter the theoretical predictions for low lying S-states.

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Krzysztof Pachucki. 2000-12-20. Logarithmic two-loop corrections to the Lamb shift in hydrogen. https://doi.org/10.1103/physreva.63.042503

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