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arXiv · 2311.05860

$\mathcal{O}\left(m\alpha^2 (Z\alpha)^6\right)$ contribution to Lamb shift from radiative corrections to the Wichmann-Kroll potential

Petr A. Krachkov·Roman N. Lee
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Abstract

We derive an analytical expression for the contribution of the order $m\alpha^2 (Z\alpha)^6$ to the hydrogen Lamb shift which comes from the diagrams for radiative corrections to the Wichmann-Kroll potential. We use modern methods of multiloop calculations, based on IBP reduction, DRA method and differential equations.

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Petr A. Krachkov, Roman N. Lee. 2023-11-10. $\mathcal{O}\left(m\alpha^2 (Z\alpha)^6\right)$ contribution to Lamb shift from radiative corrections to the Wichmann-Kroll potential. https://arxiv.org/abs/2311.05860

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