Year: 1997
Type: article
Abstract: Nuclear-size corrections of order $(Z\ensuremath{\alpha}{)}^{5}$ and $(Z\ensuremath{\alpha}{)}^{6}$ to the $S$-state levels of hydrogenic atoms are considered. These nuclear-elastic contributions are somewhat smaller than the polarizability (nuclear-inelastic) corrections for deuterium, but are of comparable or larger size for the hydrogen case. For deuterium the (attractive) nonrelativistic $(Z\ensuremath{\alpha}{)}^{5}$ correction to the $2S$-$1S$ transition is 0.49 kHz, while the (repulsive) relativistic $(Z\ensuremath{\alpha}{)}^{6}$ contribution is $\ensuremath{-}$3.40 kHz. For the proton the corresponding corrections are 0.03 kHz and $\ensuremath{-}$0.61 kHz, respectively. The $(Z\ensuremath{\alpha}{)}^{5}$ contribution largely cancels the Coulomb-retardation part of the nuclear-polarization correction.
Source: Physical Review A
Authors: J. L. Friar, G. L. Payne
Language: English
Topic: Atomic and Molecular Physics
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2061635387