Combination of inclusive and differential t(t)over-bar charge asymmetry measurements using ATLAS and CMS data at root S=7 and 8 TeV
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The ATLAS Collaboration , The CMS Collaboration , Aaboud , M , Eerola , P , Kirschenmann , H , Pekkanen , J , Voutilainen , M , Havukainen , J , Heikkilä , J K , Järvinen , T , Karimäki , V , Kinnunen , R , Lampén , T , Lassila-Perini , K , Laurila , S , Lehti , S , Lindén , T , Luukka , P , Mäenpää , T , Siikonen , H , Tuominen , E , Tuominiemi , J & Tuuva , T 2018 , ' Combination of inclusive and differential t(t)over-bar charge asymmetry measurements using ATLAS and CMS data at root S=7 and 8 TeV ' Journal of High Energy Physics , vol. 2018 , no. 4 , 033 . https://doi.org/10.1007/JHEP04(2018)033
| Title: | Combination of inclusive and differential t(t)over-bar charge asymmetry measurements using ATLAS and CMS data at root S=7 and 8 TeV |
| Author: | The ATLAS collaboration; The CMS collaboration; Aaboud, M.; Eerola, P.; Kirschenmann, H.; Pekkanen, J.; Voutilainen, M.; Havukainen, J.; Heikkilä, J. K.; Järvinen, T.; Karimäki, V.; Kinnunen, R.; Lampén, T.; Lassila-Perini, K.; Laurila, S.; Lehti, S.; Lindén, T.; Luukka, P.; Mäenpää, T.; Siikonen, H.; Tuominen, E.; Tuominiemi, J.; Tuuva, T. |
| Contributor: | University of Helsinki, Department of Physics University of Helsinki, Department of Physics University of Helsinki, Department of Physics University of Helsinki, Department of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Helsinki Institute of Physics |
| Belongs to series: | Journal of High Energy Physics |
| ISSN: | 1029-8479 |
| Abstract: | This paper presents combinations of inclusive and differential measurements of the charge asymmetry (A(C)) in top quark pair (t(t)over-bar) 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)(LHC7) = 0.005 +/- 0.007 (stat) +/- 0.006 (syst) at 7 TeV and A(C)(LHC8) = 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 t(t)over-bar system at 8 TeV, are consistent with the respective standard model predictions. |
| URI: | http://hdl.handle.net/10138/236736 |
| Date: | 2018-04-09 |
| Subject: |
114 Physical sciences
Hadron-Hadron scattering (experiments) Top physics Hadron-Hadron scattering (experiments) Top physics PARTON DISTRIBUTIONS PP COLLISIONS LHC |
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