Impact-picture predictions for the $\gamma\gamma$ total cross section at LEP

TL;DR

This paper confirms that the impact-picture model accurately describes the rising total cross section in gamma-gamma collisions at LEP energies and uses it to predict behavior at higher energies, supporting its long-term validity.

Contribution

The paper demonstrates the consistency of the impact-picture approach with recent LEP data and extends its predictions to higher energies, reaffirming its predictive power.

Findings

Experimental data aligns with impact-picture predictions

Model successfully predicts high-energy cross section increase

Supports the universality of high-energy total cross section growth

Abstract

We show that the rising total cross section $\sigma(\gamma\gamma \to hadrons)$ recently observed by the L3 and OPAL Collaborations at LEP are fully consistent with the impact-picture for high-energy scattering. The impact picture is then used to predict this total cross section at higher energies. These experimental results confirm once more the success of the theoretical approach, which predicted for the first time, nearly thirty years ago, the universal increase of total cross sections at high energies.