2018/01/31 by ATLAS Collaboration, M. Aaboud, G. Aad +98 · 35 citations
Physics and Astronomy · #Astrophysics #Galaxy #High-Energy Particle Collisions Research #Invariant mass #Jet (fluid) #Large Hadron Collider #Luminosity #Nuclear physics #Optics #Particle physics #Particle physics theoretical and experimental studies #Parton #Parton shower #Photon #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Scattering #Transverse plane #hep-ex
paper · pdf · open access · doi:10.1016/j.physletb.2018.03.035
published in Physics Letters B 780, 578-602 (Elsevier BV) · 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/
openalex created_date 2018/01/12 · openalex publication_date 2018/03/15 · arxiv created 2018/04/08 · arxiv updated 2018/04/10 · openalex updated_date 2026/08/06
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- k t 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.