A frozen cores approximation for the nine lowest even parity levels of CI
- 1 May 1972
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 5 (5), L91-L93
- https://doi.org/10.1088/0022-3700/5/5/003
Abstract
The wavefunctions for neutral carbon are expanded in terms of antisymmetrized products of functions for the C+ core multiplied by orbital functions for an added electron. The core functions included are: the 2P0 ground state with admixture of the configurations 2s22p and 2p3; and the states 4P, 2D, 2S and 2P belonging to the configuration 2s2p2. The radial functions for the added electron satisfy a system of coupled integro-differential equations. Results are obtained for the CI levels normally designated 2s22p23P, 1D and 1S and 2s32p3p1S, 3S, 1P, 3P, 1D and 3D.Keywords
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