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- W2092103743 abstract "Abstract The R -matrix method is used in an ab initio study of low energy elastic scattering by He 2 + molecular ions. SCF and correlated CI wavefunctions have been used in a two state approximation, which retains the lowest two states, 2 ∑ u + and 2 ∑ g + , of the He 2 + molecular ion in the scattering basis. Cross section calculations have been performed at two fixed internuclear separations, 1.8 and 2.0625 a 0 . At the equilibrium bond separation we have detected and fitted the lowest lying n p σ 3 Σ u + resonances in the 3 Σ + u scattering symmetry. In addition, bound state calculations have also been carried out for the He 2 (1 σ g + 1 σ u 2s a 3 Σ u + ) state at these two internuclear separations and are seen to compare favorably with MCSCF and SOCI results." @default.
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- W2092103743 date "1991-04-01" @default.
- W2092103743 modified "2023-09-27" @default.
- W2092103743 title "Low energy electron collisions with He2+ molecules" @default.
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- W2092103743 doi "https://doi.org/10.1016/0168-583x(91)95432-d" @default.
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