Energies and electron correlation effects in two-electron doubly excited (nl)2 states |
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| Authors: | M. Biaye A. Konté N.A.B. Faye A. Wagué |
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| Affiliation: | (1) Department of physics, University Cheikh Anta Diop, Dakar, Senegal, SN |
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| Abstract: | Energies of singlet doubly excited states 2p2 1D, 3d2 1G, 4f2 1I of He isoelectronic series are calculated in the framework of the variational method by using Hylleraas-type wave functions and a real Hamiltonian. The results obtained show quantitatively the importance of electron correlation effects in the doubly excited states and they are in good agreement with some experimental data and other theoretical results. Received 30 March 2000 and Received in final form 4 July 2000 |
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| Keywords: | PACS. 31.25.Jf Electron-correlation calculations for atoms and ions: excited states |
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