Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/107753
Title: Combination of inclusive and differential tt¯ charge asymmetry measurements using ATLAS and CMS data at √s = 7 and 8 TeV
Authors: Santos, S. P. Amor dos 
Fiolhais, M. C. N. 
Galhardo, B. 
Veloso, F. 
Wolters, H. 
ATLAS Collaboration
Keywords: Hadron-Hadron scattering (experiments); Top physics
Issue Date: 2018
Publisher: Springer Nature
Serial title, monograph or event: Journal of High Energy Physics
Volume: 2018
Issue: 4
Abstract: This paper presents combinations of inclusive and differential measurements of the charge asymmetry (AC) in top quark pair (tt) events with a lepton+jets signature by the ATLAS and CMS Collaborations, using data from LHC proton-proton collisions at centreof- mass energies of 7 and 8TeV. The data correspond to integrated luminosities of about 5 and 20 fb–1for each experiment, respectively. The resulting combined LHC measurements of the inclusive charge asymmetry are AC LHC7= 0:005±0:007 (stat) ±0:006 (syst) at 7TeV and AC LHC7= 0:0055 ± 0:0023 (stat) ± 0:0025 (syst) at 8TeV. These values, as well as the combination of AC measurements as a function of the invariant mass of the [formula presented] system at 8TeV, are consistent with the respective standard model predictions.
URI: https://hdl.handle.net/10316/107753
DOI: 10.1007/JHEP04(2018)033
Rights: openAccess
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais

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