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arXiv · 2202.05037

Differential $t\bar{t}$ cross-section measurements using boosted top quarks with 139 fb$^{-1}$ of ATLAS data

Petr Jačka
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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.

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Petr Jačka. 2022-02-10. Differential $t\bar{t}$ cross-section measurements using boosted top quarks with 139 fb$^{-1}$ of ATLAS data. https://arxiv.org/abs/2202.05037

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