New QED formulas for (Zα)^5 and (Zα)^6 nuclear-recoil finite-size corrections in hydrogenic atoms, valid for all nuclear radii and removing a spurious linear-radius term from the Breit approximation.
We perform first R ddk1 ddk2 integration analytically using formulas from Appendix A, and next integration over ω along the CH contour with the ε → 0 limit
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Recoil corrections with finite nuclear size in hydrogenic systems
New QED formulas for (Zα)^5 and (Zα)^6 nuclear-recoil finite-size corrections in hydrogenic atoms, valid for all nuclear radii and removing a spurious linear-radius term from the Breit approximation.