VARIATIONAL CALCULATIONS OF SOME S-STATES IN TWO-ELECTRON ATOMS,
Abstract
Nonrelativistic energies of the 2(1)S and 2(3)S states of He, Li(+), and Be(++) and the 3(1)S and 3(3)S states of He and Li(+) have been calculated by the Rayleigh-Ritz variational method. Mass polarization corrections have also been evaluated. After correction for mass polarization, relativistic, and electromagnetic shifts the energies calculated with 31-term expansions differ from experimental values by about 2 or 3 reciprocal cm for singlet, and about .4 reciprocal cm for triplet, states. The relative effectiveness of expansions involving one, two, and three exponential parameters is discussed. For excited singlet S states, expansions with three exponential parameters result in a considerably better energy than expansions with two such parameters. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 23, 1963
- Accession Number
- AD0420153
Entities
People
- J. F. Perkins
Organizations
- United States Army Aviation and Missile Command