Effect of an Electronic Pseudocharge Distribution on Hydrogen-Like Atoms

Abstract
The pseudocharge or anapole is an electromagnetic interaction which is invariant under time reversal and odd under parity. We calculate the effect in hydrogen-like atoms of an electronic pseudocharge distribution. Upper limits for the pseudocharge mean-square radius are obtained by comparing our results with experiments on the Lamb shift and the lifetime of metastable hydrogen-like atoms.

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