Eur. Phys. J. C 21, 489-494 (2001)
DOI: 10.1007/s100520100745

One-loop electron vertex in Yennie gauge

M.I. Eides^{1, 2} and V.A. Shelyuto<sup>3

1</sup>  Department of Physics and Astronomy, University of Kentucky, Lexington, KY 40506, USA
²  Petersburg Nuclear Physics Institute, Gatchina, St.Petersburg 188350, Russia
³  D.I. Mendeleev Institute of Metrology, St.Petersburg 198005, Russia

(Received: 23 April 2001 / Revised version: 25 June 2001 / Published online: 17 August 2001 -© Springer-Verlag / Società Italiana di Fisica 2001 )

Abstract
We derive a compact Yennie gauge representation for the off-shell one-loop electron-photon vertex, and discuss it properties. This expression is explicitly infrared finite, and it has proved to be extremely useful in multiloop calculations in the QED bound state problem.

© Società Italiana di Fisica, Springer-Verlag 2001