Higher-Order Nuclear-Size Corrections in Atomic Hydrogen

Details Higher-Order Nuclear-Size Corrections in Atomic Hydrogen Higher-Order Nuclear-Size Corrections in Atomic Hydrogen

1997-05-21

arxiv.org/abs/nucl-th/9705036v2

Phys.Rev.A56:5173-5175,1997

Physics

Nuclear Physics

Nuclear Theory

7 pages, latex -- Submitted to Phys. Rev. A --

Scientific paper

10.1103/PhysRevA.56.5173

Nuclear-size corrections of order $(Z \alpha)^5$ and $(Z \alpha)^6$ 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 $(Z \alpha)^5$ correction to the 2S-1S transition is 0.49 kHz, while the (repulsive) relativistic $(Z \alpha)^6$ contribution is -3.40 kHz. For the proton the corresponding corrections are 0.03 kHz and -0.61 kHz, respectively. The $(Z \alpha)^5$ contribution largely cancels the Coulomb-retardation part of the nuclear-polarization correction.

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