A QCD motivated model for soft processes

TL;DR

This paper presents a QCD-inspired model that describes both hard and soft high-energy interactions using a unified approach based on dipole scattering and saturation, eliminating the need for a traditional soft Pomeron.

Contribution

It introduces a novel QCD motivated framework for soft processes that relies on a minimal set of parameters fitted from deep inelastic scattering data.

Findings

Soft processes are described without a soft Pomeron.

Model parameters are fitted from DIS data.

Unified description of hard and soft interactions achieved.

Abstract

In this talk we give a brief description of a QCD motivated model for both hard and soft interactions at high energies. In this model the long distance behaviour of the scattering amplitude is determined by the dipole scattering amplitude in the saturation domain. All phenomenological parameters for dipole-proton interaction were fitted from the deep inelastic scattering data and the soft processes are described with only one new parameter, related to the wave function of hadron. It turns out that we do not need to introduce the so called soft Pomeron that has been used in high energy phenomenology for four decades.