Angle-differential elastic electron scattering off C₆₀: A simple semi-empirical theory versus experiment

We prove in the present paper that a simple modeling of a complicated highly polarizable C$_{60}$ target by a rectangular (in a radial coordinate) square well potential in combination with the static polarization potential provides a viable approximation for a low-energy elastic electron scattering off this target. The proof is based on the results of the comparison of the calculated angle-differential elastic electron scattering cross section off C$_{60}$ versus corresponding experimental data.