Improved calculation of the hyperfine structure of muonic helium
F. A. Martynenko, K. A. Seredina, A. P. Martynenko
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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