1211.4265 (Michael I. Eides et al.)

Light-by-Light Scattering Single-Logarithmic Corrections to Hyperfine
Splitting in Muonium    [PDF]

Michael I. Eides, Valery A. Shelyuto

We present the results of an analytic calculation of the single-logarithmic radiative-recoil corrections of order $\alpha^2(Z\alpha)(m/M)E_F$ to hyperfine splitting in muonium generated by the gauge invariant set of diagrams with the light-by-light scattering block.

View original: http://arxiv.org/abs/1211.4265