Dijet Cross Sections in Photoproduction at HERA

Details Dijet Cross Sections in Photoproduction at HERA Dijet Cross Sections in Photoproduction at HERA

1997-10-22

arxiv.org/abs/hep-ex/9710018v2

Eur.Phys.J.C1:109-122,1998

Physics

High Energy Physics

High Energy Physics - Experiment

30 pages including 5 figures. Includes a reference mistakenly omitted in previous version

Scientific paper

10.1007/s100520050065

Dijet cross sections are presented using photoproduction data obtained with the ZEUS detector during 1994. These measurements represent an extension of previous results, as the higher statistics allow cross sections to be measured at higher jet transverse energy (ETJ). Jets are identified in the hadronic final state using three different algorithms, and the cross sections compared to complete next-to-leading order QCD calculations. Agreement with these calculations is seen for the pseudorapidity dependence of the direct photon events with ETJ > 6 GeV and of the resolved photon events with ETJ > 11 GeV. Calculated cross sections for resolved photon processes with 6 GeV < ETJ < 11 GeV lie below the data.

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