# Comparison of QCD Curves with Elastic pp Scattering Data

## TL;DR

This paper uses functional techniques in non-perturbative QCD to model elastic proton-proton scattering, fitting data from ISR and LHC-TOTEM experiments with amplitudes featuring Pomeron-like forms.

## Contribution

It introduces a simplified amplitude model based on a specific transverse fluctuation function, providing a gauge-invariant, non-perturbative approach to fit experimental scattering data.

## Key findings

- Successful fits to ISR and LHC-TOTEM data
- Amplitudes exhibit Pomeron-like behavior
- Model incorporates quark transverse fluctuations

## Abstract

Using previously described functional techniques for some non--perturbative, gauge invariant, renormalized QCD processes, a simplified version of the amplitudes --- in which forms akin to Pomerons naturally appear --- provides fits to ISR and LHC--TOTEM $pp$ elastic scattering data. Those amplitudes rely on a specific function $\varphi (\vec b)$ which describes the fluctuations of the transverse position of quarks inside hadrons.