Measurement of the cross section for isolated-photon plus jet production in pp collisions at s=13 TeV using the ATLAS detector

ATLAS Collaboration , Rafal Bielski, Ian Connelly, Brian Cox, Cinzia Da Via, Nicholas Dann, Alessandra Forti, James Howarth, David Lack, Frederick Loebinger, Stephen Marsden, Jiri Masik, Stephen Menary, Francisca Munoz Sanchez, Alexander Oh, Joleen Pater, Yvonne Peters, Andrew Pilkington, Darren Price, Yang QinJohn Raine, Jacob Rawling, Rhys Roberts, H. Schweiger, Savanna Shaw, Lee Tomlinson, Stephen Watts, Fabian Wilk, Terence Wyatt

    Research output: Contribution to journalArticlepeer-review

    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 fb−1. 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.
    Original languageEnglish
    JournalPhysics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
    Early online date15 Mar 2018
    DOIs
    Publication statusPublished - 2018

    Fingerprint

    Dive into the research topics of 'Measurement of the cross section for isolated-photon plus jet production in pp collisions at s=13 TeV using the ATLAS detector'. Together they form a unique fingerprint.

    Cite this