FINAL VIBRATIONAL-STATE RESOLVED SINGLE-ELECTRON CAPTURE FOR IMPACT OF LESS-THAN-OR-EQUAL-TO-1 KEV C2-2, N-2, O-2 AND CO( ON H)

By means of ion translational energy spectroscopy, single-electron cap ture (SEC) by ground state and metastable C2+ on H-2, N-2, O-2 and CO has been studied at impact energies less than or equal to 1 keV. For S EC from N-2 the main channels involve transitions C2+(2s2p(3)P(o)) + N -2(upsilon(i) = 0) --> C+(2s2p(2 2)D) + N-2(+) (A(2) Pi(u); upsilon(f) ) with the final vibrational state distributions (upsilon(f) = 0-5) be ing found in reasonably good agreement with multichannel Landau-Zener calculations.