O(alpha(3) lnalpha) corrections to muonium and positronium hyperfine splitting

O(alpha(3) lnalpha) corrections to muonium and positronium hyperfine splitting

We compute O(alpha(3)lnalpha) relative corrections to the ground-state hyperfine splitting of a QED two-body bound state with different masses of constituents. The general result is then applied to muonium and positronium. In particular, a new value of the muon-to-electron mass ratio is derived from...

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Veröffentlicht in:Physical review letters 2001-02, Vol.86 (8), p.1498-1501
Hauptverfasser: Melnikov, K, Yelkhovsky, A
Format: Artikel
Sprache:eng
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Zusammenfassung:We compute O(alpha(3)lnalpha) relative corrections to the ground-state hyperfine splitting of a QED two-body bound state with different masses of constituents. The general result is then applied to muonium and positronium. In particular, a new value of the muon-to-electron mass ratio is derived from the muonium ground-state hyperfine splitting.
ISSN:0031-9007