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QCD Standard Model measurements with the ATLAS Detector

Recent measurements of the production of jets and photons by the ATLAS experiment using proton proton collision data at $\sqrt{s}$ = 13 TeV are presented. They provide stringent tests of perturbative QCD. Prompt inclusive photon production is measured for two distinct photon isolation cones, R=0.2 a...

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Detalles Bibliográficos
Autor principal: Feickert, Matthew
Lenguaje:eng
Publicado: 2023
Materias:
Acceso en línea:http://cds.cern.ch/record/2851213
Descripción
Sumario:Recent measurements of the production of jets and photons by the ATLAS experiment using proton proton collision data at $\sqrt{s}$ = 13 TeV are presented. They provide stringent tests of perturbative QCD. Prompt inclusive photon production is measured for two distinct photon isolation cones, R=0.2 and 0.4, as well as for their ratio. The measurement is sensitive to gluon parton density distribution. Furthermore, the measurement of new event-shape jet observables defined in terms of reference geometries with cylindrical and circular symmetries using the energy mover's distance are discussed, as well as a measurement probing the properties of the multijet energy flow extremely sensitive to the strong coupling constant.