Asymmetry of the natural line profile for the hydrogen atom
L. N. Labzowsky, D. A. Solovyev, G. Plunien, G. Soff
Abstract
The asymmetry of the natural line profile for transitions in hydrogen-like 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 2.929856 Hz. For the 2s1/2-2p3/2 transition it amounts to -1.512674 Hz. As a new feature this correction turns out to be process dependent. The quoted numbers refer to the Compton-scattering process.
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