Melnikov K, Yelkhovsky A
Stanford Linear Accelerator Center, Stanford University, California 94309, USA.
Phys Rev Lett. 2001 Feb 19;86(8):1498-501. doi: 10.1103/PhysRevLett.86.1498.
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.
我们计算了具有不同质量组分的量子电动力学（QED）两体束缚态基态超精细分裂的O(α³lnα)相对修正。然后将一般结果应用于μ子素和正电子素。特别地，从μ子素基态超精细分裂推导出了μ子与电子质量比的新值。
