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

Details O(alpha^3 ln alpha) corrections to muonium and positronium hyperfine splitting O(alpha^3 ln alpha) corrections to muonium and positronium hyperfine splitting

2000-10-13

arxiv.org/abs/hep-ph/0010131v2

Phys.Rev.Lett. 86 (2001) 1498-1501

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, revtex

Scientific paper

10.1103/PhysRevLett.86.1498

We compute O(alpha^3 ln alpha) 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.

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