Calculations of Total Classical Cross Sections for a Central Field

In order to find the total collision cross-section a direct method of the effective potential (EPM) in the framework of classical mechanics was proposed. EPM allows to over come both the direct scattering problem (calculation of the total collision cross-section) and the inverse scattering problem (reconstruction of the scattering potential) quickly and effectively. A general analytical expression was proposed for the generalized Lennard-Jones potentials: (6–3), (9–3), (12–3), (6–4), (8–4), (12–4), (8–6), (12–6), (18–6). The values for the scattering potential of the total cross section for pairs such as electron–N₂, N–N, and O–O₂ were obtained in a good approximation. (author)