New developments in QCD analysis of inclusive diffraction at HERA

TL;DR

This paper reviews recent experimental results on inclusive diffraction at HERA, highlighting the consistency across different techniques and the role of diffractive PDFs in explaining the observed features.

Contribution

It presents new developments in the analysis of diffractive processes at HERA, emphasizing the compatibility of various experimental methods and the application of diffractive PDFs.

Findings

Good agreement between different experimental techniques and collaborations.

Common fundamental features observed across all data sets.

Diffractive PDFs effectively describe the measured features.

Abstract

A large collection of results for the diffractive dissociation of virtual photons, $\gamma^{\star}p \to Xp$, have been obtained with the H1 and ZEUS detectors at HERA. Different experimental techniques have been used, by requiring a large rapidity gap between $X$ and the outgoing proton, by analysing the mass distribution, $M_X$, of the hadronic final state, as well as by directly tagging the proton. A reasonable compatibility between those techniques and between H1 and ZEUS results have been observed. Some common fundamental features in the measurements are also present in all data sets. Diffractive PDFs can give a good account of those features. Ideas and new developments are discussed in these proceedings.