Dynamics of isolated-photon plus jet production in pp\ud collisions at √s=7 TeV with the ATLAS detector

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Farrington, Sinead ; Jeske, C. ; Jones, G. (Graham) ; Martin, T. A. ; Pianori, E. ; HASH(0x561a134e6578) (2013)
  • Publisher: Elsevier Science BV
  • Related identifiers: doi: 10.1016/j.nuclphysb.2013.07.025
  • Subject: QC
    arxiv: Astrophysics::High Energy Astrophysical Phenomena | High Energy Physics::Experiment

The dynamics of isolated-photon plus jet production in pp collisions at a centre-of-mass energy of 7 TeV has been studied with the ATLAS detector at the LHC using an integrated luminosity of 37 pb−1. Measurements of isolated-photon plus jet bin-averaged cross sections are presented as functions of photon transverse energy, jet transverse momentum and jet rapidity. In addition, the bin-averaged cross sections as functions of the difference between the azimuthal angles of the photon and the jet, the photon–jet invariant mass and the scattering angle in the photon–jet centre-of-mass frame have been measured. Next-to-leading-order QCD calculations are compared to the measurements and provide a good description of the data, except for the case of the azimuthal opening angle.
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