Leading logarithmic contribution to the second-order Lamb shift induced by the loop-after-loop diagram
High Energy Physics - Phenomenology
2009-10-31 v1
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
Cite
@article{arxiv.hep-ph/0010134,
title = {Leading logarithmic contribution to the second-order Lamb shift induced by the loop-after-loop diagram},
author = {Vladimir A. Yerokhin},
journal= {arXiv preprint arXiv:hep-ph/0010134},
year = {2009}
}
Comments
RevTex, 9 pages, 2 figures