A fresh look at factorization breaking in diffractive photoproduction of dijets at HERA at next-to-leading order QCD

Abstract

We calculate the cross section of diffractive dijet photoproduction in $ep$ scattering at next-to-leading order (NLO) of perturbative QCD (pQCD), which we supplement by a model of factorization breaking for the resolved-photon contribution. In this model, the suppression depends on the flavor and momentum fraction of the partons in the photon. We show that within experimental and theoretical uncertainties, the resulting approach provides a good description of the available HERA data in most of the bins. Hence, taken together with the observation that NLO pQCD explains well the data on diffractive photoproduction of open charm in $ep$ scattering, our model of factorization breaking presents a viable alternative to the scheme based on the global suppression factor.

9 pages, 4 figures. Final published version

References in corpus (7)

• Diffractive photoproduction of dijets in ep collisions at HERA
• Combined inclusive diffractive cross sections measured with forward proton spectrometers in deep inelastic ep scattering at HERA
• Review of factorization breaking in diffractive photoproduction of dijets
• Diffractive Photoproduction of D*+/-(2010) at HERA
• Survival probability for diffractive dijet production in p-pbar collisions from next-to-leading order calculations
• Suppression factors in diffractive photoproduction of dijets
• Diffractive Dijet Production with a Leading Proton in ep Collisions at HERA

Cited by in corpus (8)

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• Selected topics in diffraction with protons and nuclei: past, present, and future
• Photon and Pomeron -- induced production of Dijets in $pp$, $pA$ and $AA$ collisions
• How large is the diffractive contribution to inclusive dijet photoproduction in UPCs at the LHC?
• Diffractive dijet photoproduction at the EIC
• Effective Field Theory Factorization for Diffraction
• Single-diffractive production of dijets within the $k_t$-factorization approach