Σu+3bound and continuum states ine−-He2+scattering (original) (raw)

Physical Review A, 1993

Abstract

Ab initio calculations are performed on the e--He+2 complex using the R-matrix technique. A two-state approximation is utilized in which the 2Sigma+u and the A 2Sigma+g electronic states of He+2, in the close-coupling expansion, are represented by truncated configuration-interaction (CI) wave functions obtained from multiconfiguration-self-consistent-field-complete-active-space-SCF (MCSCF-CASSCF) calculations. A (4s,2p,2d) Slater basis is used to perform bound-state calculations at SCF, full

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