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arXiv · 2609.17454

Improved calculation of the hyperfine structure of muonic helium

F. A. Martynenko·K. A. Seredina·A. P. Martynenko
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Abstract

Using perturbation theory for the fine-structure constant $α$ and the electron-to-muon mass ratio, we calculated new contributions to the hyperfine structure of the ground state of the muon-electron helium atom. Compared to our previous results, we calculated new corrections in second-order perturbation theory. This calculation reduces the discrepancy between the theoretical value and the new experimental hyperfine structure measurement.

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F. A. Martynenko, K. A. Seredina, A. P. Martynenko. 2026-09-15. Improved calculation of the hyperfine structure of muonic helium. https://arxiv.org/abs/2609.17454

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