# High energy photoionization of fullerenes

## TL;DR

This paper demonstrates that the high energy photoionization cross section of fullerenes is highly sensitive to the potential function used to model the fullerene field, with the energy dependence derived analytically without solving wave equations.

## Contribution

It introduces an analytical method to determine the high energy behavior of fullerene photoionization cross sections based on the properties of the potential function.

## Key findings

- Cross section shape depends on the potential function form
- Energy dependence derived analytically
- No wave equation solutions needed

## Abstract

We show that the theoretical predictions on high energy behavior of the photoionization cross section of fullerenes depends crucially on the form of the function $V(r)$ which approximates the fullerene field. The shape of the high energy cross section is obtained without solving of the wave equation. The cross section energy dependence is determined by the analytical properties of the function $V(r)$.