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- W4220718612 abstract "In this paper we present accurately calculated data on the resonance parameters (resonance energy and excitation energies) of the doubly excited singlet and triplet states 1,3Se, 1,3P0, 1,3De, 1,3F0 and 1,3Ge of helium and helium-like ions (Z = 2 â 10) located below the hydrogenic thresholds N = 3 â 8, using the variational method of the Screening Constant per Unit Nuclear Charge (SCUNC) formalism. These energies are calculated using special form wave functions of the Hylleraas type and a real Hamiltonian. The results obtained are in very good agreement with the experimental and theoretical values available in the literature. The results for the energies of the doubly excited 1,3Se, 1,3P0, 1,3De, 1,3F0 and 1,3Ge states associated with hydrogenic thresholds up to N = 8 listed for the first time in this paper may provide a useful guideline for future experimental and theoretical studies in the autoionization states of two-electron systems." @default.
- W4220718612 created "2022-04-03" @default.
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- W4220718612 date "2022-01-24" @default.
- W4220718612 modified "2023-10-14" @default.
- W4220718612 title "Doubly-Excited <SUP>1,3</SUP><i>S</i><SUP><i>e</i></SUP>, <SUP>1,3</SUP><i>P</i><SUP>0</SUP>, <SUP>1,3</SUP><i>D</i><SUP><i>e</i></SUP>, <SUP>1,3</SUP><i>F</i><SUP>0</SUP> and <SUP>1,3</SUP><i>G</i><SUP><i>e</i></SUP> Resonances States of Two-Electron Atoms below the <i>N</…" @default.
- W4220718612 doi "https://doi.org/10.12691/ijp-10-1-2" @default.
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