I Schneider et al 1985 J. Phys. B: At. Mol. Phys. 18 791 doi:10.1088/0022-3700/18/4/021
I Schneider, I N Mihailescu, L Nanu and I Iovit-Popescu
Show affiliationsThe electronic collisions of ground-state H2+ followed by capture into the (2p sigma u)(nlm) state (n>or=2) are investigated theoretically by means of a configuration interaction theory. Emphasis is put on the investigation of the domain of very low energy. The mean energy in the chosen mix of molecular-ion-hydrogen configurations is evaluated and, consequently, the corresponding capture radius, which appears to depend approximately linearly on the energy. Finally the cross section is evaluated. It diverges around zero, as expected. For capture into the n=2 states, it has an approximately E-1 dependence for a large range of energies, having values of above 10-16 cm2 for less than 2 eV, in good agreement with experimental results. For capture into the 3s states, the authors give evidence of a dip of 2*10-20 cm2 at 0.2 eV and a peak of 1.4*10-17 cm2 at 6.6 eV, in good agreement with previous calculations.
34.20.Gj Intermolecular and atom-molecule potentials and forces
33.80.Eh Autoionization, photoionization, and photodetachment
31.15.ve Electron correlation calculations for atoms and ions: ground state
Issue 4 (28 February 1985)
I Schneider et al 1985 J. Phys. B: At. Mol. Phys. 18 791
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