Di-Jet Production in Photon-Photon Collisions at e+e- center-of-mass energies = 161 and 172 GeV

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dc.creatorOPAL Collaboration
dc.creatoral, G. Abbiendi et
dc.date1998-08-26
dc.date.accessioned2026-07-07T12:02:24Z
dc.date.available2026-07-07T12:02:24Z
dc.descriptionDi-jet production is studied in collisions of quasi-real photons radiated by the LEP beams at e+e- centre-of-mass energies 161 and 172 GeV. The jets are reconstructed using a cone jet finding algorithm. The angular distributions of direct and double-resolved processes are measured and compared to the predictions of leading order and next-to-leading order perturbative QCD. The jet energy profiles are also studied. The inclusive two-jet cross-section is measured as a function of transverse energy and rapidity and compared to next-to-leading order perturbative QCD calculations. The inclusive two-jet cross-section as a function of rapidity is compared to the prediction of the leading order Monte Carlo generators PYTHIA and PHOJET. The Monte Carlo predictions are calculated with different parametrisations of the parton distributions of the photon. The influence of the `underlying event' has been studied to reduce the model dependence of the predicted jet cross-sections from the Monte Carlo generators.
dc.description31 pages, LaTeX, 15 eps figures included (1 in colour), submitted to European Physical Journal C
dc.identifierhttps://arxiv.org/abs/hep-ex/9808027
dc.identifierhttp://arxiv.org/abs/hep-ex/9808027
dc.identifierEur.Phys.J.C10:547-561,1999
dc.identifierdoi:10.1007/s100529900139
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/207429
dc.subjectHigh Energy Physics - Experiment
dc.titleDi-Jet Production in Photon-Photon Collisions at e+e- center-of-mass energies = 161 and 172 GeV
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