The kinematic apse andjzhyphen;preserving propensities for nonreactive, dissociative, and reactive polyatomic collisions

摘要

We consider the generalization of the kinematic apse to nonreactive polyatomndash;polyatom impulsive collisions, dissociative atomndash;molecule impulsive collisions, and (partially) impulsive reactive atomndash;diatom collisions. Appropriate generalizations of the kinematic apse are obtained along which there is a classical propensity for preserving the projection of the total intrinsic spin. In the case of reactive scattering, we discuss several different situations for which such a propensity occurs. For reactive systems in which no such propensity exists, the analysis may still provide a basis for classifying reactions.