Abstract
Potential energy curves for different states of XO+ (X = Ar, Kr, Xe) have been determined by experimental and theoretical methods. Elastic scattering cross sections obtained from the scattering of O+(2 P, 2 D, 4 S) on Ar, Kr and Xe were used to determine the corresponding potential curves. The curve for the X 4Σ- state of ArO+ calculated including correlation effects is in very good agreement with the experimental curve. The lower excited states of ArO+ which correlate with Ar+(2 P) and O(3 P) are calculated, including correlation effects.