P. A. Krachkov

activity

20152026

most citedSmall-angle scattering and quasiclassical approximation beyond leading order

6 citations · 10 across the 7 of their papers we have counts for

collaborators

Showing 2023Show all

2 papers · 1 filter

hep-ph2023

$O (m α^{2} (Z α)^{6})$ contribution to Lamb shift from radiative corrections to the Wichmann-Kroll potential

Petr A. Krachkov, Roman N. Lee

We derive an analytical expression for the contribution of the order $m α^{2} (Z α)^{6}$ to the hydrogen Lamb shift which comes from the diagrams for radiative corrections to the Wichman…

hep-ph2023★ 3 cited

Two-loop corrections to Lamb shift and hyperfine splitting in hydrogen via multi-loop methods

Petr A. Krachkov, Roman N. Lee

We revisit the contributions of order $α^{2} (Z α)^{5} m$ and $α^{2} (Z α) E_{F}$ , respectively, to the Lamb shift and to the hyperfine splitting from mixed self-energy-vacuum-polarization diagr…

O(mα2(Zα)6) contribution to Lamb shift from radiative corrections to the Wichmann-Kroll potential

Two-loop corrections to Lamb shift and hyperfine splitting in hydrogen via multi-loop methods

$O (m α^{2} (Z α)^{6})$ contribution to Lamb shift from radiative corrections to the Wichmann-Kroll potential