Sudden atom-molecule collisions: CsF scattered by Ne, Ar, Kr and Xe

Abstract

The sudden approximation in conjunction with the body-fixed and semiclassical approximations provides a simple method of calculating differential state-to-state cross sections. These approximations overestimate the mod Delta j mod =1 cross section by 5-15% and the mod Delta j mod =2 cross section by 25-35%. Various Lennard-Jones (12,6) spherical potentials and the leading terms of the long-range anisotropic potential are used. The results of this theory are compared with measurements of partial cross sections for jm to j'm' transitions in CsF scattered by Ne, Ar, Ke and Xe. The calculated values are consistent with about 40% of the observations.