Eur. Phys. J. C 21, 489-494 (2001)
One-loop electron vertex in Yennie gaugeM.I. Eides1, 2 and V.A. Shelyuto3
1 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 )
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