Potential interactions between boron ions and rare gases

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Abstract
Theoretical and experimental results on the elastic scattering of boron ions, B+, on rare gas atoms X (He, Ne, Ar, Kr, Xe) are described. The elastic scattering observed in these systems depends very strongly on the particular rare gas employed. In particular, the scattering of B+ on He and Ne shows no oscillatory structure, B+ on Ar and Kr shows two rainbow structures, and B+ on Xe shows only one rainbow structure. These results are interpreted in terms of the potential energy curves arising from different states of the BX+ molecules, some of which correlate with the first excited state of B+(3P). The potential energy curves for the ground and first excited state of NeB+ and ArB+ have been calculated by ab initio methods and allow an interpretation of the experimental results to be made.