THEORETICAL INVESTIGATION OF COLLISION-INDUCED DISSOCIATION IN HE-2(NA)

A quantum mechanical investigation is made for the collision induced d issociation (CID) process, He + Na-2 --> He + Na + Na, by treating the vibrational and rotational degrees of freedom in fully decoupled appr oximation. The collision problem to be solved is simply reduced to the calculation of the scattering phase shift that depends parametrically on the molecular orientation and on the inter nuclear distance of the molecule. The present method gives a useful approach to study vibrati onal energy transfer and dissociation in collisions of heavy (or polya tomic) molecules which lie in any vibrational states. (C) 1998 Elsevie r Science B.V.