Measurement of the t(t)over-bar production cross-section in pp collisions at root s=5.02 TeV with the ATLAS detector

  • Aad, G.
  • Asimakopoulou, Eleni M.
  • Bergeås Kuutmann, Elin
  • Brenner, Richard
  • Dimitriadi, Christina
  • Ekelöf, Tord
  • Ellajosyula, Venugopal
  • Ellert, Mattias
  • Ferrari, Arnaud
  • Gonzalez Suarez, Rebeca
  • Mathisen, Thomas
  • Ördek, Serhat
  • Steentoft, Jonas
  • Sunneborn Gudnadottir, Olga
  • Zwalinski, L.
Publication date
January 2023

Abstract

The inclusive top-quark pair ( t (t) over bar) production cross-section sigma(t (t) over bar) is measured in proton-proton collisions at a centre-of-mass energy root s = 5.02TeV, using 257 pb(-1) of data collected in 2017 by the ATLAS experiment at the LHC. The t (t) over bar cross-section is measured in both the dilepton and single-lepton final states of the t<overline> t system and then combined. The combination of the two measurements yields sigma(t (t) over bar) = 67.5 +/- 0.9 (stat.) +/- 2.3 (syst.) +/- 1.1 (lumi.) +/- 0.2 (beam) pb, where the four uncertainties reflect the limited size of the data sample, experimental and theoretical systematic effects, and imperfect knowledge of both the integrated luminosity and the LHC beam e...

Extracted data

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