Differential tt cross-section measurements using boosted top quarks with 139 fb^-1 of ATLAS data

2022/02/10 by Petr Jačka, Jačka, Petr
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High-Energy Particle Collisions Research #Particle Detector Development and Performance #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.2202.05037

openalex publication_date 2022/02/10 · openalex created_date 2022/04/03 · openalex updated_date 2026/07/28

Abstract

Preliminary results of two differential cross-section measurements in the ATLAS experiment at CERN are presented. Measurements are focused on the top-antitop quark pair production in the~lepton+jets and the~all-hadronic channels in the kinematic region with high transverse momentum top quarks. Both measurements use the full Run 2 data of 13 TeV proton-proton collisions from the Large Hadron Collider collected by the ATLAS detector in 2015-2018, corresponding to an integrated luminosity of 139 fb^-1. The measured spectra are compared with the Standard Model predictions. They are also used to set limits on the Wilson coefficients of an effective field theory extension of the Standard Model.

Related

• Differential cross-section measurements of boosted top quarks at √(s) = 13 TeV with the ATLAS detector
• Measurement of the differential t-channel production cross-section of single top quarks and top antiquarks at √(s) = 13 TeV with the ATLAS detector
• Measurement of the t-channel single top-quark and top-antiquark differential cross-sections in pp collisions at √(s) = 8~\textrmTeV with the ATLAS detector
• Measurement of differential t-channel production cross-sections of single top quarks and top antiquarks at √(s)=13 TeV with the ATLAS detector
• Single- and and double-differential cross-sections in t\t final\n states in the \ℓ+jets channe