2 papers
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-ph1993
Quasipotential in the Fourth Order of Perturbation Theory. Unequal mass case
Natalia A. Boikova, Valeri V. Dvoeglazov, Yuri N. Tyukhtyaev +1
The quasipotential in the fourth order of perturbation theory is calculated in the Coulomb gauge for the unequal mass particles. It could be used for the future calculations of ene…