The determination of Lamb shift from the anisotropy quenching radiation from metastable hydrogenic atoms
The measurement of the anisotropy in the quenching radiation emitted by metastable hydrogenic systems in an electric field can be used to determine the Lamb shift. This approach was conceived as a method for the measurement of Lamb shift in high-Z ions but was tested on H, D and He+ where high precision Lamb shift values are available both from theory and from earlier experiments.
After a brief outline of the principle of the method, the main experimental problems are surveyed and the results are summarized.
KeywordsLamb Shift Static Electric Field Anisotropy Measurement Asymmetry Measurement Hyperfine State
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