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The QED-dominated splitting of levels that are degenerate in the Dirac–Coulomb approximation, notably hydrogen and .
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This is an authored directed relation from the source endpoint to the target endpoint.
Self-energy and vacuum polarization dominate the Lamb shift, with recoil and nuclear-size contributions also relevant.
A theory, law, or interaction describes the behavior of the target within a stated regime. The edge detail must state important limits or qualifications.
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This is an authored directed relation from the source endpoint to the target endpoint.
The experiment directly established the level splitting now called the Lamb shift.
The source theory, law, entity, prediction, or structural claim is directly tested, supported, constrained, or established by the target experiment or observation. Experimental support is not final logical proof; the edge detail states exactly what was measured.
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