A new diabatic molecular representation for triplet-triplet transitions in He+-He collisions |
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| Authors: | T.K.Rai Dastidar K.Rai Dastidar R.Sen Gupta |
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| Affiliation: | Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA;Department of Physics, University of Southern California, Los Angeles, California 90089, USA;Department of General Physics and X-Rays, Indian Association for the Cultivation of Science, Calcutta 700032, India |
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| Abstract: | A “frozen-orbital” diabatic basis has been constructed for an impact parameter treatment of collisions of He+ with metastable He(23S) at 1000 eV laboratory ion energy. Except for the two highest states used, the diabatic states correlate very well with the separated-atom energies, and the Σ-Π rotational couplings deviate little from the proper asymptotic behaviour (≈R?2). Cross sections and transition probabilities are presented for some elastic and inelastic channels. |
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