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Phys. Rev. A 55, 2447–2449 (1997)

Analytic contribution of order α2(Zα)5m to the Lamb shift

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Michael I. Eides
Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802
and Petersburg Nuclear Physics Institute, Gatchina, St. Petersburg 188350, Russia

Howard Grotch
Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802

Valery A. Shelyuto
D. I. Mendeleev Institute of Metrology, St. Petersburg 198005, Russia

Received 22 October 1996; published in the issue dated March 1997

The analytic result for the radiative correction of order α2(Zα)5m to the Lamb shift connected with a polarization insertion in one of the two external Coulomb lines is obtained. This correction arises from a gauge-invariant set of diagrams which contain, besides the polarization insertion in the Coulomb leg, all one-loop radiative photon insertions in the electron line with two external Coulomb lines.

© 1997 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.55.2447
DOI:
10.1103/PhysRevA.55.2447
PACS:
31.30.Jv, 12.20.-m, 36.20.Kd
 
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