Bemerkungen zum „Regenbogeneffekt“ bei der Streuung von Atomen

Abstract

The “rainbow” singularity in the differential scattering cross section for molecular collisions is a good means to get the potential depthε of the scattering potential in question. The connection between the “experimental” parameters (“rainbow”-angle, -width, and impact parameter) and the potential parameters of a given type of potential has to be given in tabular form. In this note such a table is given for the Kihara potential (2).

Furthermore, it is shown that under conditions likely to occur in experiments, the usual approximation to the scattering cross section will have a nonnegligible error.