Hadronic Vacuum Polarization Contribution to the Muonium Hyperfine Splitting
نویسندگان
چکیده
We discuss hadronic effects in the muonium hyperfine structure and derive an expression for the hadronic contribution to the hfs interval in form of the onedimensional integral of the cross section of e+e− annihilation into hadrons. Higherorder hadronic contributions are also considered.
منابع مشابه
Muonium hyperfine structure and hadronic effects
A new result for the hadronic vacuum polarization correction to the muonium hyperfine splitting (HFS) is presented: ∆ν(had – vp) = (0.233 ± 0.003) kHz. Compared with previous calculations, the accuracy is improved by using the latest data on e+e− → hadrons. The status of the QED prediction for HFS is discussed.
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