quasipotential approach About the Problem of Convergence of the Series of the Perturbation Theory in the Quasipotential Method S. V. Churochkina The questions connected to the problem of convergence of the series of the perturbation theory in quasipotential approach are considered. The mass ratio corrections obtained recently are discussed and systematized. Подробнее о About the Problem of Convergence of the Series of the Perturbation Theory in the Quasipotential Method S. V. Churochkina