Measurement of $$Z\gamma \gamma $$ production in pp collisions at $$\sqrt{s}= 13$$ TeV with the ATLAS detector
Copyright policy )Measurement of $$Z\gamma \gamma $$ production in pp collisions at $$\sqrt{s}= 13$$ TeV with the ATLAS detector
AbstractCross-sections for the production of a Z boson in association with two photons are measured in proton–proton collisions at a centre-of-mass energy of 13 TeV. The data used correspond to an integrated luminosity of 139 fb$$^{-1}$$ - 1 recorded by the ATLAS experiment during Run 2 of the LHC. The measurements use the electron and muon decay channels of the Z boson, and a fiducial phase-space region where the photons are not radiated from the leptons. The integrated $$Z(\rightarrow \ell \ell )\gamma \gamma $$ Z ( → ℓ ℓ ) γ γ cross-section is measured with a precision of 12% and differential cross-sections are measured as a function of six kinematic variables of the $$Z\gamma \gamma $$ Z γ γ system. The data are compared with predictions from MC event generators which are accurate to up to next-to-leading order in QCD. The cross-section measurements are used to set limits on the coupling strengths of dimension-8 operators in the framework of an effective field theory.
- PSL Research University France
- University of Edinburgh United Kingdom
- University of Melbourne Australia
- Universität Hamburg Germany
- National University of La Plata Argentina
electron, Kinematics, lepton, 13000 GeV-cms, dimension: 8, Photon: pair production, transverse momentum dependence, High Energy Physics - Experiment, electron: pair production, effective field theory, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Dilepton: transverse momentum, info:eu-repo/classification/ddc/530, Monte Carlo, Perturbation theory: higher-order, two-photon, photon: transverse energy, photon, Particle physics, higher-order: 1, perturbation theory: higher-order, Mass spectrum: two-photon, Differential cross section: measured, ATLAS, mass dependence, muon: pair production, higher-order, 1, P p: scattering, Operator: higher-dimensional, CERN LHC Coll, operator: higher-dimensional, kinematics, Transverse momentum dependence, differential cross section, Higher-order: 1, Electron: pair production, photon: pair production, Mass dependence, numerical calculations: Monte Carlo, 51 Physical Sciences, channel cross section: measured, 5107 Particle and High Energy Physics, Coupling constant, p p: scattering, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], muon, decay, Effective field theory, p p, scattering, cross section, measured, LHC, ATLAS, High Energy Physics, Phase space, 530, info:eu-repo/classification/ddc/500.2, energy dependence, differential cross section: measured, phase space, Photon: transverse energy, quantum chromodynamics, info:eu-repo/classification/ddc/025.063, TeV, Experimental results, High energy physics, Numerical calculations: Monte Carlo, P p: colliding beams, coupling constant, Energy dependence, Dimension: 8, Z0: associated production, Muon: pair production, Channel cross section: measured, Z0: leptonic decay, 5106 Nuclear and Plasma Physics, S043AQC, dilepton: transverse momentum, p p: colliding beams, Quantum chromodynamics, mass spectrum: two-photon, experimental results
electron, Kinematics, lepton, 13000 GeV-cms, dimension: 8, Photon: pair production, transverse momentum dependence, High Energy Physics - Experiment, electron: pair production, effective field theory, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Dilepton: transverse momentum, info:eu-repo/classification/ddc/530, Monte Carlo, Perturbation theory: higher-order, two-photon, photon: transverse energy, photon, Particle physics, higher-order: 1, perturbation theory: higher-order, Mass spectrum: two-photon, Differential cross section: measured, ATLAS, mass dependence, muon: pair production, higher-order, 1, P p: scattering, Operator: higher-dimensional, CERN LHC Coll, operator: higher-dimensional, kinematics, Transverse momentum dependence, differential cross section, Higher-order: 1, Electron: pair production, photon: pair production, Mass dependence, numerical calculations: Monte Carlo, 51 Physical Sciences, channel cross section: measured, 5107 Particle and High Energy Physics, Coupling constant, p p: scattering, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], muon, decay, Effective field theory, p p, scattering, cross section, measured, LHC, ATLAS, High Energy Physics, Phase space, 530, info:eu-repo/classification/ddc/500.2, energy dependence, differential cross section: measured, phase space, Photon: transverse energy, quantum chromodynamics, info:eu-repo/classification/ddc/025.063, TeV, Experimental results, High energy physics, Numerical calculations: Monte Carlo, P p: colliding beams, coupling constant, Energy dependence, Dimension: 8, Z0: associated production, Muon: pair production, Channel cross section: measured, Z0: leptonic decay, 5106 Nuclear and Plasma Physics, S043AQC, dilepton: transverse momentum, p p: colliding beams, Quantum chromodynamics, mass spectrum: two-photon, experimental results
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