Rainbow effects and momentum transfer mechanisms in collisions of Na+ions with N2and CO molecules

Abstract
Rotational and vibrational excitations of molecules in Na+-N2 and Na+-CO collisions were studied at centre-of-mass energies of 27+-N2 collisions contain two peaks, while those for Na+-CO contain three peaks. The structures in the spectra can be well explained by rainbow effects arising from rotational and vibrational excitation.