Measurement of the cross section for isolated-photon plus jet production in $pp$ collisions at $\sqrt s=13$ TeV using the ATLAS detector
Copyright policy )Measurement of the cross section for isolated-photon plus jet production in $pp$ collisions at $\sqrt s=13$ TeV using the ATLAS detector
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.
Physics letters / B 780, 578 - 602 (2018). doi:10.1016/j.physletb.2018.03.035
Published by North-Holland Publ., Amsterdam
- University College London United Kingdom
- Roma Tre University Italy
- Helmholtz Association of German Research Centres Germany
- Université Savoie Mont Blanc France
- Rutherford Appleton Laboratory United Kingdom
13000 GeV-cms, transverse energy [photon], jet: transverse momentum, transverse momentum dependence, transverse momentum [jet], Settore FIS/04 - Fisica Nucleare e Subnucleare, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), scattering [p p], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Settore ING-INF/07 - Misure Elettriche e Elettroniche, photon: transverse energy, Physics, ddc:530, Settore FIS/01 - Fisica Sperimentale, Particle physics, higher-order: 1, Monte Carlo [numerical calculations], ATLAS, Settore FIS/01 - FISICA SPERIMENTALE, CERN LHC Coll, associated production [photon], PYTHIA, hadroproduction [jet], colliding beams [p p], numerical calculations: Monte Carlo, Particle Physics - Experiment, 1 [higher-order], perturbation theory [quantum chromodynamics], Nuclear and High Energy Physics, p p: scattering, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], QC1-999, FOS: Physical sciences, Hadron-collisions; fragmentation; dynamics, 530, info:eu-repo/classification/ddc/500.2, energy dependence, HADRON-COLLISIONS; FRAGMENTATION; DYNAMICS, differential cross section: measured, measured [differential cross section], tree approximation, High energy physics, quantum chromodynamics: perturbation theory, hep-ex, 500, jet: hadroproduction, 541, photon: associated production, anti-kT algorithm, p p: colliding beams, experimental results, ddc: ddc:500.2, ddc: ddc:530
13000 GeV-cms, transverse energy [photon], jet: transverse momentum, transverse momentum dependence, transverse momentum [jet], Settore FIS/04 - Fisica Nucleare e Subnucleare, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), scattering [p p], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Settore ING-INF/07 - Misure Elettriche e Elettroniche, photon: transverse energy, Physics, ddc:530, Settore FIS/01 - Fisica Sperimentale, Particle physics, higher-order: 1, Monte Carlo [numerical calculations], ATLAS, Settore FIS/01 - FISICA SPERIMENTALE, CERN LHC Coll, associated production [photon], PYTHIA, hadroproduction [jet], colliding beams [p p], numerical calculations: Monte Carlo, Particle Physics - Experiment, 1 [higher-order], perturbation theory [quantum chromodynamics], Nuclear and High Energy Physics, p p: scattering, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], QC1-999, FOS: Physical sciences, Hadron-collisions; fragmentation; dynamics, 530, info:eu-repo/classification/ddc/500.2, energy dependence, HADRON-COLLISIONS; FRAGMENTATION; DYNAMICS, differential cross section: measured, measured [differential cross section], tree approximation, High energy physics, quantum chromodynamics: perturbation theory, hep-ex, 500, jet: hadroproduction, 541, photon: associated production, anti-kT algorithm, p p: colliding beams, experimental results, ddc: ddc:500.2, ddc: ddc:530
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