Diffractive Photoproduction in the Framework of Fracture Functions

TL;DR

This paper analyzes diffractive photoproduction of dijets using fracture functions, demonstrating that accounting for rapidity gap definitions leads to precise agreement with diffractive DIS and no evidence of factorization breaking.

Contribution

It introduces a framework using fracture functions to analyze diffractive photoproduction and highlights the importance of rapidity gap definitions for accurate results.

Findings

Significant effects of rapidity gap definitions on diffractive event identification

Properly accounting for these effects yields agreement between diffractive DIS and photoproduction

No evidence found for hard factorization breaking in the analyzed data

Abstract

Recent data on diffractive photoproduction of dijets are analyzed within the framework of fracture functions and paying special attention to the consequences of the use of different rapidity gap definitions in order to identify diffractive events. Although these effects are found to be significant, it is shown that once they are properly taken into account, a very precise agreement between diffractive DIS and diffractive dijet photoproduction emerges without any significant hint of hard factorization breaking.