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Order $α^4 (m/M) R_{\infty}$ corrections to hydrogen P levels

E. A. Golosov·I. B. Khriplovich·A. I. Milstein·A. S. Yelkhovsky
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Abstract

The order $α^4 (m/M) R_{\infty}$ shift of hydrogen P levels is found. The corrections are predominantly of relativistic origin. Our approach is a straightforward extension of that developed and applied by us previously to positronium P levels. The corrections to the Lamb shift in hydrogen constitute numerically δE(2 P_{1/2})=0.55 kHz, δE(2 P_{3/2}) =0.44 kHz.

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E. A. Golosov, I. B. Khriplovich, A. I. Milstein, A. S. Yelkhovsky. 1994-09-15. Order $α^4 (m/M) R_{\infty}$ corrections to hydrogen P levels. https://arxiv.org/abs/hep-ph/9409322

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