arXiv:hep-ph/9607282·v1·High Energy Physics — Phenomenology

Corrections of Order $α^{6} m$ to $S$ -Levels of Helium

Michael I. Eides (Petersburg Nuclear Physics Institute, Russia, and Pennsylvania State University, USA) · Howard Grotch (Pennsylvania State University, USA)

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Abstract

Several new corrections of order $m α^{6}$ to the energy levels of $S$ states in helium are obtained from radiative corrections to the Breit potential and from the polarization insertions in the two photon exchange graphs. While individual gauge invariant contributions are comparable to current experimental errors, the sum of these corrections is an order of magnitude smaller due to mutual cancellations.

Comments: 6 pages, ReVTeX, no figures

Corrections of Order α6m to S-Levels of Helium

Abstract

Corrections of Order $α^{6} m$ to $S$ -Levels of Helium