QUASI-RESONANT CHARGE-EXCHANGE BETWEEN CARBON AND BORON IONS

Using a crossed-beams technique, we have measured absolute cross secti ons for the quasi-resonant charge-exchange reaction C2+ + B+ --> C+ B2+ by coincident detection of the product ions C+ and B2+ for CM-ener gies between 1.3 and 160 keV. The reverse reaction was also investigat ed in the energy range between 2.5 and 80 keV: B2+ + C+ --> B+ + C2+. The theoretical treatment is based on the correlation diagrams for the system (CB)(3+) and shows that distinct channels are responsible for the direct and inverse reactions. The results of calculations are in g ood agreement with the experimental data.