Measurements of top-quark pair differential and double-differential cross-sections in the ℓ +jets channel with pp collisions at √s=13 TeV using the ATLAS detector

Academic Article

Abstract

  • © 2019, CERN for the benefit of the ATLAS collaboration. Single- and double-differential cross-section measurements are presented for the production of top-quark pairs, in the lepton + jets channel at particle and parton level. Two topologies, resolved and boosted, are considered and the results are presented as a function of several kinematic variables characterising the top and tt¯ system and jet multiplicities. The study was performed using data from pp collisions at centre-of-mass energy of 13 TeV collected in 2015 and 2016 by the ATLAS detector at the CERN Large Hadron Collider (LHC), corresponding to an integrated luminosity of 36fb-1. Due to the large tt¯ cross-section at the LHC, such measurements allow a detailed study of the properties of top-quark production and decay, enabling precision tests of several Monte Carlo generators and fixed-order Standard Model predictions. Overall, there is good agreement between the theoretical predictions and the data.
  • Digital Object Identifier (doi)

    Author List

  • Aad G; Abbott B; Abbott DC; Abud AA; Abeling K; Abhayasinghe DK; Abidi SH; AbouZeid OS; Abraham NL; Abramowicz H
  • Volume

  • 79
  • Issue

  • 12