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arXiv · 1208.4768

Hyperfine structure of excited state of muonic helium atom

A. A. Krutov·A. P. Martynenko
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Abstract

The recoil, vacuum polarization and electron vertex corrections of first and second orders in the fine structure constant $\alpha$ and the ratio of electron to muon and electron to \alpha-particle masses are calculated in the hyperfine splitting of the $1s^{(e)}_{1/2}2s^{(\mu)}_{1/2}$ state of muonic helium atom (\mu e ^4_2He) on the basis of a perturbation theory. We obtain total result for the muonically excited state hyperfine splitting $\Delta \nu^{hfs}=4295.66$ MHz which improves previous calculations due to the account of new corrections and more accurate treatment of the electron vertex contribution.

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A. A. Krutov, A. P. Martynenko. 2012-08-23. Hyperfine structure of excited state of muonic helium atom. https://doi.org/10.1103/physreva.86.052501

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