Diffraction in ep collisions

TL;DR

This paper analyzes diffractive processes in electron-proton collisions, extracting proton parton densities from measurements and applying them to predict jet and charm production, while comparing different scattering regimes.

Contribution

It provides the first extraction of diffractive parton densities from recent measurements and compares diffractive scattering in different regimes using a model-independent approach.

Findings

Diffractive parton densities of the proton are extracted from data.

Predictions for jet and open charm production are made using these densities.

A rapidity gap suppression factor is determined for dijet production.

Abstract

Recent measurements of the diffractive deep-inelastic cross section are used to extract diffractive parton densities of the proton. These are subsequently applied in models to predict the production of jets and open charm in the final state. A rapidity gap suppression factor for dijet production in diffractive photoproduction relative to diffractive deep-inelastic scattering is obtained using a model-independent comparison.