A CLOSE-COUPLING STUDY OF COLLISION-INDUCED DISSOCIATION IN HE-2(H)

The previous quantum mechanical close-coupling study of the dissociati ve collisions in He+H-2 (T-shape configuration) by the present authors [Chem. Phys. Letters 216 (1993) 613] has been extended to a wide rang e of the total energy 4.8-7.5 eV. The dissociation process shows a cle ar vibrational enhancement. The dissociation probability has an undula tion as a function of the total energy, and by using classical S-matri x theory it is shown that this feature is caused by interference of th e contributions of multiple trajectories.