Combination of inclusive and differential tt¯ charge asymmetry measurements using ATLAS and CMS data at √s = 7 and 8TeV
Fecha
2018Materia
Abstract
Abstract: This paper presents combinations of inclusive and di erential measurements of the charge asymmetry (AC) in top quark pair (t t) 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 fb1 for each experiment, respectively. The resulting combined LHC measurements of the inclusive charge asymmetry are ALHC7 C = 0:005 0 ...
Abstract: This paper presents combinations of inclusive and di erential measurements of the charge asymmetry (AC) in top quark pair (t t) 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 fb1 for each experiment, respectively. The resulting combined LHC measurements of the inclusive charge asymmetry are ALHC7 C = 0:005 0:007 (stat) 0:006 (syst) at 7TeV and ALHC8 C = 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 t t system at 8TeV, are consistent with the respective standard model predictions. ...
En
The journal of high energy physics. Trieste. No. 4 (Apr. 2018), 033, 67 p.
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