title: Asymmetry of the natural line profile for the hydrogen atom.
abstract: The asymmetry of the natural line profile for transitions in hydrogenlike atoms is evaluated within a QED framework. For the Lyman- alpha 1s-2p absorption transition in neutral hydrogen this asymmetry results in an additional energy shift of 2.929 856 Hz. For the 2s(1/2)-2p(3/2) transition it amounts to -1.512 674 Hz. As a new feature this correction turns out to be process dependent. The quoted numbers refer to the Compton-scattering process.
authors.affiliation: Max-Planck-Institut für Physik Komplexer Systeme, Nöthnitzer Strasse 38, D-01187 Dresden, Germany.
authors.forename: L N
authors.initials: LN
authors.lastname: Labzowsky
authors.forename: D A
authors.initials: DA
authors.lastname: Solovyev
authors.forename: G
authors.initials: G
authors.lastname: Plunien
authors.forename: G
authors.initials: G
authors.lastname: Soff