Leading logarithmic contribution to the second-order Lamb shift induced by the loop-after-loop diagram
Preprint
- 13 October 2000
Abstract
Contribution of order \alpha^2 (Z \alpha)^6 \ln^3(Z \alpha)^{-2} to the ground-state Lamb shift in hydrogen induced by the loop-after-loop diagram is evaluated analytically. An additional contribution of this order is found compared to the previous calculation by Karshenboim [JETP 76, 541 (1993)]. As a result, an agreement is achieved for this correction between different numerical and analytical methods.Keywords
All Related Versions
- Version 1, 2000-10-13, ArXiv
- Published version: Physical Review Letters, 86 (10), 1990.
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