Higher-Order Nuclear-Size Corrections in Atomic Hydrogen
نویسنده
چکیده
Nuclear-size corrections of order (Zα)5 and (Zα)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 (Zα)5 correction to the 2S-1S transition is −0.49 kHz, while the relativistic (Zα)6 contribution is 3.40 kHz. For the proton the corresponding corrections are −0.03 kHz and 0.61 kHz, respectively. The (Zα)5 contribution largely cancels the Coulomb-retardation part of the nuclear-polarization correction.
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