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hep-ph2003
On The Method of Precise Calculations Of Energy Levels of Hydrogen-like Atoms
N. A. Boikova, Y. N. Tyukhtyaev, R. N. Faustov
We describe a method for deriving logarithmic corrections in the mass ratio to the S-level of a hydrogen-like atom. With this method, a number of new corrections of this type are c…
hep-ph2003
Heavy quarkonium hyperfine structure and leptonic decays
D. Ebert, R. N. Faustov, V. O. Galkin
The relation between the hyperfine structure and leptonic decay rates of heavy quarkonia is considered with the account of relativistic and radiative corrections. The calculated de…