Effective transverse radius of nucleon in high-energy elastic diffractive scattering

TL;DR

This paper investigates the effective transverse radius of nucleons in high-energy elastic diffraction using Regge-eikonal approximation, revealing it to be significantly smaller than the interaction region size.

Contribution

It provides a nonperturbative estimate of the nucleon's transverse radius in elastic scattering, highlighting its small size relative to the interaction region.

Findings

Effective transverse radius is approximately 0.2 to 0.3 fm.

The radius is much smaller than the diffractive interaction region.

Results are derived within the Regge-eikonal approximation.

Abstract

High-energy elastic diffraction of nucleons is considered in the framework of the simplest Regge-eikonal approximation. It is demonstrated explicitly that the effective transverse radius of nucleon in this nonperturbative regime is $\sim 0.2\div 0.3$ fm and much less than the transverse size of the diffractive interaction region.