# A new parton model for the soft interactions at high energies

## TL;DR

This paper introduces a novel parton model based on Pomeron calculus that effectively describes high-energy soft interactions, ensuring unitarity and accommodating various scattering scenarios, bridging gaps in current QCD approaches.

## Contribution

The paper presents a new parton model derived from Pomeron calculus that incorporates impact parameter dependence and unitarity, applicable to multiple scattering processes at high energies.

## Key findings

- Model describes experimental data at high energies.
- Ensures both t-channel and s-channel unitarity.
- Applicable to hadron-hadron, hadron-nucleus, and nucleus-nucleus scattering.

## Abstract

We propose a new parton model and demonstrate that the model describes the relevant experimental data at high energies. The model is based on Pomeron calculus in 1+1 space-time dimensions, as suggested in Ref. [18] and on simple assumptions regarding the hadron structure, related to the impact parameter dependence of the scattering amplitude. This parton model evolves from QCD, assuming that the unknown non-perturbative corrections lead to fixing size of the interacting dipoles. The advantage of this approach is that it satisfies both t-channel and s-channel unitarity, and can be used for summing all diagrams of Pomeron interactions, including Pomeron loops. We can use this approach for all reactions: dilute-dilute (hadron-hadron), dilute-dense (hadron-nucleus) and dense-dense (nucleus-nucleus)for the scattering of parton systems. Unfortunately, we are still far from being able to tackle this problem in the effective QCD theory at high energy (i.e. in the CGC /saturation approach).