Phys. Rev. A 53, 2953–2957 (1996)Weak-interaction contributions to hyperfine splitting and Lamb shiftReceived 17 November 1995; published in the issue dated May 1996 Weak-interaction contributions to hyperfine splitting and the Lamb shift in hydrogen and muonium are discussed. The problem of sign of the weak-interaction contribution to HFS is clarified, and simple physical arguments that make this sign evident are presented. It is shown that weak-interaction contributions to HFS in hydrogen and muonium have opposite signs. A weak-interaction contribution to the Lamb shift is obtained. © 1996 The American Physical Society. © 1996 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.53.2953
DOI:
10.1103/PhysRevA.53.2953
PACS:
32.80.Ys, 12.20.Ds
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