Review of factorization breaking in diffractive photoproduction of dijets

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dc.creatorKlasen, M.
dc.creatorKramer, G.
dc.date2008-06-13
dc.date.accessioned2026-07-07T11:51:38Z
dc.date.available2026-07-07T11:51:38Z
dc.descriptionAfter 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.
dc.description22 pages, 2 tables, 8 figures. Invited brief review for Modern Physics Letters A
dc.identifierhttps://arxiv.org/abs/0806.2269
dc.identifierhttp://arxiv.org/abs/0806.2269
dc.identifierMod.Phys.Lett.A23:1885-1907,2008
dc.identifierdoi:10.1142/S0217732308027461
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/203969
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Experiment
dc.titleReview of factorization breaking in diffractive photoproduction of dijets
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