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

TL;DR

This paper calculates the weak interaction effects on muonium's hyperfine structure within the Standard Model, including exchange amplitudes and one-loop corrections, providing detailed theoretical insights.

Contribution

It presents the first detailed calculation of weak interaction contributions to muonium hyperfine splitting, including exchange amplitudes and quantum corrections.

Findings

Weak interaction contributions are quantified for muonium hyperfine splitting.

One-loop corrections from photon and Z boson propagators are computed.

Results enhance understanding of weak effects in bound-state spectra.

Abstract

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.