| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9817910 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2005 | 6 Pages |
Abstract
The second-order electron self-energy loop-after-loop correction is investigated for hydrogen-like ions in the region of low nuclear charge numbers Z. Both irreducible and reducible parts of this correction are evaluated for the 1s1/2-state within the Fried-Yennie gauge. We confirm the result obtained first by Mallampalli and Sapirstein. The reducible part of this correction is evaluated numerically for the first time and it is consistent with the corresponding analytical αZ-expansion.
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Authors
Igor Goidenko, Leonti Labzowsky, Günter Plunien, Gerhard Soff,