Combination of inclusive and differential t<sup>-</sup>t charge asymmetry measurements using ATLAS and CMS data at √s = 7 and 8 TeV
This paper presents combinations of inclusive and differential measurements of the charge asymmetry (AC) in top quark pair (t<sup>-</sup>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...
| Authors: | ; ; ; ; ; ; ; ; |
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| Format: | Article |
| Status: | Published version |
| Publication date: | 2018 |
| Country: | Argentina |
| Institution: | UNLP |
| Repository: | SEDICI (UNLP) |
| Language: | English |
| OAI Identifier: | oai:sedici.unlp.edu.ar:10915/81721 |
| Online Access: | http://sedici.unlp.edu.ar/handle/10915/81721 |
| Access Level: | Open access |
| Keyword: | Ciencias Exactas Física hadron-hadron scattering top quark asymmetry |
| Summary: | This paper presents combinations of inclusive and differential measurements of the charge asymmetry (AC) in top quark pair (t<sup>-</sup>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<sup>-1</sup> for each experiment, respectively. The resulting combined LHC measurements of the inclusive charge asymmetry are A<sup>LHC7</sup><sub>C</sub> = 0.005±0.007 (stat) ±0.006 (syst) at 7TeV and A<sup>LHC8</sup><sub>C</sub>= 0.0055 ± 0:0023 (stat) ± 0.0025 (syst) at 8 TeV. These values, as well as the combination of AC measurements as a function of the invariant mass of the t<sup>-</sup>t system at 8 TeV, are consistent with the respective standard model predictions. |
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