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Recoil corrections in the hydrogen isoelectronic sequence

G. S. Adkins, J. Sapirstein

hep-pharXiv:hep-ph/0512322

Abstract

A version of the Bethe-Salpeter equation appropriate for calculating recoil corrections in highly charged hydrogenlike ions is presented. The nucleus is treated as a scalar particle of charge Z, and the electron treated relativistically. The known recoil corrections of order m2/M(Zα)4 are derived in both this formalism and in NRQED.

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