Measurements of top-quark production cross sections with the ATLAS detector

TL;DR

This paper presents comprehensive measurements of top-quark production cross sections at the LHC using ATLAS data from 2015-2018, testing Standard Model predictions and improving Monte Carlo models, including recent results at 5 TeV and initial Run 3 data at 13.6 TeV.

Contribution

It provides the most precise measurements of top-quark production rates at the LHC, including new results at 5 TeV and early Run 3 data, enhancing understanding of top-quark physics.

Findings

Measured top-quark pair and single-top production cross sections.

Compared results with Standard Model predictions and Monte Carlo models.

Included first measurements at 5 TeV and preliminary Run 3 data at 13.6 TeV.

Abstract

The Large Hadron Collider (LHC) produces a vast sample of top-quark pairs and single-top quarks. Measurements of the inclusive top-quark production rates at the LHC have reached a precision of several percent and test advanced next-to-next-to-leading-order predictions in QCD. Measurements of production cross sections test the Standard Model predictions and help to improve the Monte Carlo models. In this contribution, comprehensive measurements of top-quark-antiquark pair and single-top quark production are presented; the measurements use the data recorded by the ATLAS experiment in the years 2015-2018 during Run 2 of the LHC. A recent result from the 5 TeV operation of the LHC is also included. In addition, a first look into top-quark pair production in Run 3 data at 13.6 TeV is also presented.