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Recent highlights of top-quark cross section and properties measurements with the ATLAS detector at the LHC

Talk Abstract: The remarkably large dataset collected with the ATLAS detector at the highest proton-proton collision energy provided by LHC allows to use the large sample of top quark events to test theoretical predictions with unprecedented precision. Recent measurements of total and differential t...

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Detalles Bibliográficos
Autor principal: Fenton, Michael James
Lenguaje:eng
Publicado: 2023
Materias:
Acceso en línea:http://cds.cern.ch/record/2852033
Descripción
Sumario:Talk Abstract: The remarkably large dataset collected with the ATLAS detector at the highest proton-proton collision energy provided by LHC allows to use the large sample of top quark events to test theoretical predictions with unprecedented precision. Recent measurements of total and differential top-quark cross sections as well properties of top-quark production are presented, including new measurements of top-quark pair production and s-channel production at 13 TeV, ttbar production at 5 TeV as well as a first look into run 3 data in ttbar events. Further highlights are the new measurements of W-boson polarisation in ttbar events, new top-quark mass measurements as well as distributions sensitive to colour reconnection. Several measurements are interpreted within the Standard Model Effective Field Theory, yielding stringent bounds on Wilson coefficients.