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Jet Production in Photon-Photon Interactions

By Stefan Söldner-Rembold and Stefan S

Abstract

Introduction We present measurements of jet production in flfl interactions at p s ee of 130 and 136 GeV. The jet cross-sections are compared to predictions of perturbative QCD which use different parametrisations of the photon structure function. In the Quark Parton Model (QPM) jets are produced by the interaction of bare photons, flfl ! qq. This is called the direct process. The largest part of the total cross-section, however, is modelled by interactions where the photon fluctuates into a hadronic state. The processes are called single-resolved if one photon couples directly to a parton in the other photon and double-resolved if partons from both photons interact. 2 Data analysis and Monte Carlo simulation Two-photon events are selected by requiring that the sum of all energy deposits in the calorimeters is less than 50 GeV. The hadronic invariant mass, WECAL<F

Year: 1996
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