Autoionising states of He22+. II. Potential energy curves and energy widths
- 14 December 1980
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 13 (23) , 4577-4588
- https://doi.org/10.1088/0022-3700/13/23/015
Abstract
For pt.I see ibid., vol.11, p.955 (1978). The adiabatic potential energy curves of the He22+ quasi-molecular system are calculated by the configuration interaction method for internuclear distance R from 0.5 to 5.0 au. The CGTO centred at each nucleus and at the nuclear charge centre are used as basis functions. The energy widths of the autoionising states are obtained from R=0.0 to 0.5 au in the Coulomb, static and static exchange approximations for the continuum electron wavefunction. The calculation is extended for the lowest 1 Sigma g+ autoionising state to R=1.0 au which corresponds to the stabilisation point of this state.Keywords
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