On the oscillator strength sums S(±1) of atoms and ions

Abstract

Using rigorous relations discovered recently, the Hartree–Fock limit values of the dipole oscillator strength sums S(−1) and S(+1) are obtained for the 102 neutral atoms He through Lr, singly charged 53 cations Li+ through Cs+, and 43 stable anions H− through I− in their experimental ground states. The present results for the ionic species are the first compilation of the sums. For heavy neutral atoms, the literature S(+1) values are found to be insufficiently accurate.