Pure recoil corrections to the Lamb shift in hydrogenic atoms
- 1 March 1991
- journal article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 43 (5), 2152-2170
- https://doi.org/10.1103/physreva.43.2152
Abstract
The recoil corrections of order (Zα /M to the hydrogenic Lamb shift are reviewed, and additional terms previously thought to be small are calculated numerically. It is found that significant contributions arise from single-transverse–single-Coulomb interactions in which the bulk of the contribution comes from negative-energy electron intermediate states. This term is found to contain a lnZα dependence, which accounts for its large effect. Other smaller terms are also computed and combined with all previous Lamb-shift contributions. The current status of the Lamb shift in hydrogen is reviewed.
Keywords
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