Measurements of inclusive and differential cross-sections of \(t\bar{t}\gamma\) production in \(pp\) collisions at \(\sqrt{s}=13\) TeV with the ATLAS detector
Cross-section measurements of the associated production of a top quark pair and a photon (\(t\bar{t}\gamma\)) are performed with an integrated luminosity of 140 fb\(^{-1}\) of proton-proton collisions at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the LHC. The measurement fo...
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| description | Cross-section measurements of the associated production of a top quark pair and a photon (\(t\bar{t}\gamma\)) are performed with an integrated luminosity of 140 fb\(^{-1}\) of proton-proton collisions at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the LHC. The measurement focuses on \(t\bar{t}\gamma\) topologies where the photon is radiated from an initial-state parton or one of the top quarks. The differential cross-sections are measured for variables characterising the photon, lepton and jet kinematic properties. The distribution of the photon transverse momentum is used to constrain effective field theory operators related to the electroweak dipole moments of the top quark. |
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The measurement focuses on \(t\bar{t}\gamma\) topologies where the photon is radiated from an initial-state parton or one of the top quarks. The differential cross-sections are measured for variables characterising the photon, lepton and jet kinematic properties. The distribution of the photon transverse momentum is used to constrain effective field theory operators related to the electroweak dipole moments of the top quark.</description><identifier>EISSN: 2331-8422</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Collisions ; Cross-sections ; Dipole moments ; Field theory ; Kinematics ; Large Hadron Collider ; Leptons ; Luminosity ; Operators (mathematics) ; Partons ; Photons ; Protons ; Quarks ; Topology ; Transverse momentum</subject><ispartof>arXiv.org, 2024-11</ispartof><rights>2024. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). 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| source | Free E- Journals |
| subjects | Collisions Cross-sections Dipole moments Field theory Kinematics Large Hadron Collider Leptons Luminosity Operators (mathematics) Partons Photons Protons Quarks Topology Transverse momentum |
| title | Measurements of inclusive and differential cross-sections of \(t\bar{t}\gamma\) production in \(pp\) collisions at \(\sqrt{s}=13\) TeV with the ATLAS detector |
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