Measurement of the production cross section of three isolated photons in pp collisions at √s=8 TeV using the ATLAS detector

A measurement of the production of three isolated photons in proton–proton collisions at a centre-of-mass energy s=8 TeV is reported. The results are based on an integrated luminosity of 20.2 fb −1 collected with the ATLAS detector at the LHC. The differential cross sections are measured as function...

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Autor principal: Aaboud, M.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03702693_v781_n_p55_Aaboud
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_03702693_v781_n_p55_Aaboud2023-10-03T15:29:59Z Measurement of the production cross section of three isolated photons in pp collisions at √s=8 TeV using the ATLAS detector Aaboud, M. A measurement of the production of three isolated photons in proton–proton collisions at a centre-of-mass energy s=8 TeV is reported. The results are based on an integrated luminosity of 20.2 fb −1 collected with the ATLAS detector at the LHC. The differential cross sections are measured as functions of the transverse energy of each photon, the difference in azimuthal angle and in pseudorapidity between pairs of photons, the invariant mass of pairs of photons, and the invariant mass of the triphoton system. A measurement of the inclusive fiducial cross section is also reported. Next-to-leading-order perturbative QCD predictions are compared to the cross-section measurements. The predictions underestimate the measurement of the inclusive fiducial cross section and the differential measurements at low photon transverse energies and invariant masses. They provide adequate descriptions of the measurements at high values of the photon transverse energies, invariant mass of pairs of photons, and invariant mass of the triphoton system. © 2018 The Author JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03702693_v781_n_p55_Aaboud
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description A measurement of the production of three isolated photons in proton–proton collisions at a centre-of-mass energy s=8 TeV is reported. The results are based on an integrated luminosity of 20.2 fb −1 collected with the ATLAS detector at the LHC. The differential cross sections are measured as functions of the transverse energy of each photon, the difference in azimuthal angle and in pseudorapidity between pairs of photons, the invariant mass of pairs of photons, and the invariant mass of the triphoton system. A measurement of the inclusive fiducial cross section is also reported. Next-to-leading-order perturbative QCD predictions are compared to the cross-section measurements. The predictions underestimate the measurement of the inclusive fiducial cross section and the differential measurements at low photon transverse energies and invariant masses. They provide adequate descriptions of the measurements at high values of the photon transverse energies, invariant mass of pairs of photons, and invariant mass of the triphoton system. © 2018 The Author
format JOUR
author Aaboud, M.
spellingShingle Aaboud, M.
Measurement of the production cross section of three isolated photons in pp collisions at √s=8 TeV using the ATLAS detector
author_facet Aaboud, M.
author_sort Aaboud, M.
title Measurement of the production cross section of three isolated photons in pp collisions at √s=8 TeV using the ATLAS detector
title_short Measurement of the production cross section of three isolated photons in pp collisions at √s=8 TeV using the ATLAS detector
title_full Measurement of the production cross section of three isolated photons in pp collisions at √s=8 TeV using the ATLAS detector
title_fullStr Measurement of the production cross section of three isolated photons in pp collisions at √s=8 TeV using the ATLAS detector
title_full_unstemmed Measurement of the production cross section of three isolated photons in pp collisions at √s=8 TeV using the ATLAS detector
title_sort measurement of the production cross section of three isolated photons in pp collisions at √s=8 tev using the atlas detector
url http://hdl.handle.net/20.500.12110/paper_03702693_v781_n_p55_Aaboud
work_keys_str_mv AT aaboudm measurementoftheproductioncrosssectionofthreeisolatedphotonsinppcollisionsats8tevusingtheatlasdetector
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