Saturation in Diffractive Deep Inelastic Scattering

TL;DR

This paper demonstrates that a saturation model effectively describes HERA data on diffractive deep inelastic scattering, highlighting saturation's crucial role in the transition from large to small Q^2 and in the ratio of diffractive to inclusive cross sections.

Contribution

The study applies a saturation model, previously used for inclusive scattering, to diffractive processes without additional parameters, emphasizing saturation's importance in diffractive phenomena.

Findings

Saturation model fits HERA diffractive data well

Saturation explains the ratio of diffractive to inclusive cross sections

Saturation is key in the Q^2 transition in diffractive scattering

Abstract

We successfully describe the HERA-data on diffractive deep inelastic scattering using a saturation model which has been applied in our earlier analysis of the inclusive $ep$-scattering data. No further parameters are needed. Saturation already turned out to be essential in describing the transition from large to small values of $Q^2$ in inclusive scattering. It is even more important for diffractive processes and naturally leads to a constant ratio of the diffractive versus inclusive cross sections. We present an extensive discussion of our results as well as detailed comparison with data.