Two-loop self-energy correction in H-like ions
نویسندگان
چکیده
A part of the two-loop self-energy correction, the so-called P term, is evaluated numerically for the 1s state to all orders in Zα. Our calculation, combined with the previous investigation [S. Mallampalli and J. Sapirstein, Phys. Rev. A 57, 1548 (1998)], yields the total answer for the two-loop self-energy correction in H-like uranium and bismuth. As a result, the major uncertainty is eliminated from the theoretical prediction for the Lamb shift in these systems. The total value of the ground-state Lamb shift in H-like uranium is found to be 463.93(50) eV. PACS number(s): 31.30.Jv, 31.10.+z
منابع مشابه
Two-loop self-energy correction to the ground-state Lamb shift in H-like ions
The two-loop self-energy correction is evaluated to all orders in Zα for the groundstate Lamb shift of H-like ions with Z ≥ 20, where Z is the nuclear charge number and α is the fine structure constant. The results obtained are compared with analytical calculations performed within the Zα-expansion.
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