Kinetic cross sections in the infinite order sudden approximation

Abstract

The translational-internal coupling scheme allows a factorization of energy-dependent and kinetic cross sections into internal and translational parts. WKB-IOS phase shifts for the N2-Ar potential of Kistemaker and deVries are used to calculate the translational factors. A T-matrix version of the theory based on calculating only downward collisions is used as an attempt to lessen the effect of ignoring energy inelastic effects in the phase shift computation. All kinetic cross sections associated with the viscosity Senftleben-Beenakker effect are estimated in this manner. IntroductionThe computational efficiency of the infinite order sud-