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Finite nuclear size effect on Lamb shift of s1/2, p1/2, and p3/2 atomic states

A. I. Milstein·O. P. Sushkov·I. S. Terekhov
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Abstract

We consider one-loop self-energy and vacuum polarization radiative corrections to the shift of atomic energy level due to finite nuclear size. Analytic expressions for vacuum polarization corrections are derived. For the self-energy of p1/2 and p3/2 states in addition to already known terms we derive next-to-leading nonlogarithmic Zα-terms. Together with contributions obtained earlier the terms derived in the present work give explicit analytic expressions for s1/2 and p1/2 corrections which agree with results of previous numerical calculations up to Z=100 (Z is the nuclear charge number). We also show that the finite nuclear size radiative correction for a p3/2 state is not small compared to the similar correction for a p1/2 state at least for small Z.

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A. I. Milstein, O. P. Sushkov, I. S. Terekhov. 2003-09-02. Finite nuclear size effect on Lamb shift of s1/2, p1/2, and p3/2 atomic states. https://doi.org/10.1103/physreva.69.022114

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