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Article
Report number arXiv:1801.00112 ; CERN-EP-2017-265
Title Measurement of the cross section for isolated-photon plus jet production in pp collisions at s=13 TeV using the ATLAS detector
Author(s) ATLAS Collaboration  Afficher les 2904 auteurs
Publication 2018-05-10
Imprint 30 Dec 2017
Number of pages 25
Note 40 pages in total, author list starting page 24, 5 figures, 1 table, published in Physics Letters B, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2017-01/
In: Phys. Lett. B 780 (2018) 578-602
DOI 10.1016/j.physletb.2018.03.035
Subject category Particle Physics - Experiment ; hep-ex
Accelerator/Facility, Experiment CERN LHC ; ATLAS
Free keywords QCD ; photon production ; experimental results
Abstract The dynamics of isolated-photon production in association with a jet in proton-proton collisions at a centre-of-mass energy of 13 TeV are studied with the ATLAS detector at the LHC using a dataset with an integrated luminosity of 3.2 fb1. Photons are required to have transverse energies above 125 GeV. Jets are identified using the anti-kt algorithm with radius parameter R=0.4 and required to have transverse momenta above 100 GeV. Measurements of isolated-photon plus jet cross sections are presented as functions of the leading-photon transverse energy, the leading-jet transverse momentum, the azimuthal angular separation between the photon and the jet, the photon-jet invariant mass and the scattering angle in the photon-jet centre-of-mass system. Tree-level plus parton-shower predictions from SHERPA and PYTHIA as well as next-to-leading-order QCD predictions from JETPHOX and SHERPA are compared to the measurements.
Related document supersedes: ATLAS-CONF-2017-059
Copyright/License Preprint: © 2017-2025 CERN (License: CC-BY-4.0)



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Email contact: fmalek@lpsc.in2p3.fr


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