On the energy levels for the screened Coulomb potentialV(r)=−Z/r+Gλ/(1+λr)
The energy eigenvalues of various eigenstates for the potentialV(r)=−Z/r+Gλ/(1+λr) are accurately evaluated within the framework of the hypervirial-Padé scheme. An approximate formula for energy levels is also obtained with the use of the Ecker-Weizel approximation. The results of the present calculations are compared with those of a dispersion calculation.