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arxiv: 1303.0824 · v3 · submitted 2013-03-04 · ✦ hep-ph

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Photon isolation effects at NLO in gamma gamma + jet final states in hadronic collisions

T. Gehrmann , N. Greiner , G. Heinrich
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classification ✦ hep-ph
keywords photonisolationdiphotongammahadronicplusallowsarbitrary
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We present the NLO QCD corrections to diphoton plus jet production at hadron colliders. Our calculation includes contributions from the fragmentation of a hadronic jet into a highly energetic photon, and consequently allows the implementation of arbitrary infrared-safe photon isolation definitions. We compare different photon isolation criteria and perform a detailed study of the dependence of the diphoton plus jet cross section on the photon isolation parameters.

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