• Media type: E-Article
  • Title: Combination of inclusive and differential $$ \mathrm{t}\overline{\mathrm{t}} $$ charge asymmetry measurements using ATLAS and CMS data at $$ \sqrt{s}=7 $$ and 8 TeV
  • Contributor: Aaboud, M.; Aad, G.; Abbott, B.; Abdinov, O.; Abeloos, B.; Abidi, S. H.; AbouZeid, O. S.; Abraham, N. L.; Abramowicz, H.; Abreu, H.; Abulaiti, Y.; Acharya, B. S.; Adachi, S.; Adamczyk, L.; Adelman, J.; Adersberger, M.; Adye, T.; Affolder, A. A.; Afik, Y.; Agheorghiesei, C.; Aguilar-Saavedra, J. A.; Ahlen, S. P.; Ahmadov, F.; Aielli, G.; [...]
  • Published: Springer Science and Business Media LLC, 2018
  • Published in: Journal of High Energy Physics, 2018 (2018) 4
  • Language: English
  • DOI: 10.1007/jhep04(2018)033
  • ISSN: 1029-8479
  • Origination:
  • Footnote:
  • Description: Abstract This paper presents combinations of inclusive and differential measurements of the charge asymmetry (A C) in top quark pair $$ \left(\mathrm{t}\overline{\mathrm{t}}\right) $$ t t ¯ events with a lepton+jets signature by the ATLAS and CMS Collaborations, using data from LHC proton-proton collisions at centre-of-mass energies of 7 and 8 TeV. The data correspond to integrated luminosities of about 5 and 20 fb−1 for each experiment, respectively. The resulting combined LHC measurements of the inclusive charge asymmetry are A C CHC7  = 0.005 ± 0.007 (stat) ± 0.006(syst) at 7 TeV and A C CHC8  = 0.0055 ± 0.0023 (stat) ± 0.0025 (syst) at 8 TeV. These values, as well as the combination of A C measurements as a function of the invariant mass of the $$ \mathrm{t}\overline{\mathrm{t}} $$ t t ¯ system at 8 TeV, are consistent with the respective standard model predictions.
  • Access State: Open Access