High-t Diffraction at HERA

TL;DR

This paper reports the first direct measurement of the energy dependence of high-|t| gap production in gamma-proton interactions at HERA, revealing insights into diffraction at large momentum transfer.

Contribution

It provides the first direct measurement of the energy dependence of the double dissociation cross section at high |t| in photoproduction.

Findings

Measured the gamma p -> XY cross section at |t| > 20 GeV^2

Observed the energy dependence of the gap production process

Enhanced understanding of diffraction at high momentum transfer

Abstract

The double dissociation photoproduction cross section for the process gamma p -> XY, in which the systems X and Y are separated by a large rapidity gap, is measured at large 4-momentum transfer squared |t| > 20 GeV^2 by the H1 Collaboration at HERA. This measurement provides for the first time a direct measurement of the energy dependence of the gap production process at high |t|.