Radiative-nonrecoil corrections of order alpha^2 (Z alpha)^5 to the Lamb shift

Details Radiative-nonrecoil corrections of order alpha^2 (Z alpha)^5 to the Lamb shift Radiative-nonrecoil corrections of order alpha^2 (Z alpha)^5 to the Lamb shift

2009-11-20

arxiv.org/abs/0911.4078v3

Phys.Rev.A81:022509,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 4 figures; v2: added two references, changed comparison with previous result, conclusions unchanged, matches publishe

Scientific paper

We present results for the corrections of order alpha^2 (Z alpha)^5 to the Lamb shift. We compute all the contributing Feynman diagrams in dimensional regularization and a general covariant gauge using a mixture of analytical and numerical methods. We confirm results obtained by other groups and improve their precision. Values of the 32 master integrals for this and similar problems are provided.

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