Review of factorization breaking in diffractive photoproduction of dijets

Abstract

After the final analyses of the H1 and ZEUS collaborations for the diffractive photoproduction of dijets have appeared, we have recalculated these cross sections in next-to-leading order (NLO) of perturbative QCD to see whether they can be interpreted consistently. The results of these calculations are compared to the data of both collaborations. We find that at NLO the cross sections disagree with the data, showing that factorization breaking occurs at this order. If direct and resolved contributions are both suppressed by the same amount, the global suppression factor depends on the transverse-energy cut and is 0.42 for the H1 and 0.71 for the ZEUS analysis. However, by suppressing only the resolved contribution by a factor of approximately three, also reasonably good agreement with all the data is found. The size of the factorization breaking effects for resolved photons agrees with absorptive-model predictions.

22 pages, 2 tables, 8 figures. Invited brief review for Modern Physics Letters A

References in corpus (20)

• Successive Combination Jet Algorithm For Hadron Collisions
• A general approach to jet cross sections in QCD
• Proof of Factorization for Diffractive Hard Scattering
• Measurement and QCD Analysis of the Diffractive Deep-Inelastic Scattering Cross Section at HERA
• Inclusive Measurement of Diffractive Deep-inelastic ep Scattering
• Dijet Cross Sections and Parton Densities in Diffractive DIS at HERA
• Can the Higgs be seen in rapidity gap events at the Tevatron or the LHC?
• Probabilities of rapidity gaps in high energy interactions
• Theory of hard photoproduction
• Dissociation of virtual photons in events with a leading proton at HERA
• Tests of QCD Factorisation in the Diffractive Production of Dijets in Deep-Inelastic Scattering and Photoproduction at HERA
• Diffractive photoproduction of dijets in ep collisions at HERA
• Unitarity effects in hard diffraction at HERA
• Dijet Cross Sections at O($\alpha {\alpha }_s^2$) in Photon-Proton Collisions
• Inclusive Higgs boson and dijet production via Double Pomeron exchange
• Diffractive parton distributions from H1 data
• Inclusive Dijet Production at HERA: Direct Photon Cross Sections in Next-To-Leading Order QCD
• Factorization in hard diffraction
• Factorization Breaking in Diffractive Dijet Photoproduction
• Factorization scheme and scale dependence in diffractive dijet production at low Q^2

Cited by in corpus (19)

• Diffractive Dijet Production in Deep Inelastic Scattering and Photon-Hadron Collisions in the Color Glass Condensate
• Diffractive Dijet Production and Wigner Distributions from the Color Glass Condensate
• On the one loop ${\gamma }^{(\ast )}\to q\bar{q}$ impact factor and the exclusive diffractive cross sections for the production of two or three jets
• Impact factor for high-energy two and three jets diffractive production
• Diffractive Dijet Photoproduction in ep Collisions at HERA
• Extra Spin Asymmetries From the Breakdown of TMD-Factorization in Hadron-Hadron Collisions
• Inclusive diffraction in future electron-proton and electron-ion colliders
• Diffractive dijet photoproduction in ultraperipheral collisions at the LHC in next-to-leading order QCD
• Factorization breaking in diffractive dijet photoproduction at HERA
• Survival probability for diffractive dijet production in p-pbar collisions from next-to-leading order calculations
• A fresh look at factorization breaking in diffractive photoproduction of dijets at HERA at next-to-leading order QCD
• How large is the diffractive contribution to inclusive dijet photoproduction in UPCs at the LHC?
• Suppression factors in diffractive photoproduction of dijets
• Diffractive dijet photoproduction at the EIC
• Diffractive longitudinal structure function at the Electron Ion Collider
• Impact factor for high-energy two and three jets diffractive production
• Factorization breaking in single-diffractive dijet production at the Tevatron
• Summary of the HERA-LHC workshop
• Diffraction and forward physics: from HERA to LHC