arXiv subjects

K. A. Seredina

Publications and source records attributed to K. A. Seredina.

2 recordsLinked to original sources

arXiv2026

Improved calculation of the hyperfine structure of muonic helium

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.

physics.atom-ph↗

arXiv2026

Weak Interaction Contribution to the Muonium Hyperfine Structure in the Standard Model

The contribution of the weak interaction to the hyperfine splitting of the ground state of muonium is investigated. The amplitudes of the one- and two-quantum exchange determined by the Z and W bosons are calculated. One-loop corrections in the photon and Z boson propagators and their contribution to the hyperfine structure of the spectrum are obtained.

hep-ph↗