Combination of inclusive and differential tt¯ charge asymmetry measurements using ATLAS and CMS data at √s=7 and 8 TeV

Please use this identifier to cite or link to this item: http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/3881

Title:	Combination of inclusive and differential tt¯ charge asymmetry measurements using ATLAS and CMS data at √s=7 and 8 TeV
Authors:	ATLAS collaboration Aaboud, M. CHAUHAN, S. DUBE, SOURABH HEGDE, V. KAPOOR, A. KOTHEKAR, K. PANDEY, S. RANE, A. SHARMA, SEEMA et al. Dept. of Physics
Keywords:	Hadron-Hadron scattering Experiments Top physics Resulting combined LHC 2018
Issue Date:	Apr-2018
Publisher:	Springer Nature
Citation:	Journal of High Energy Physics, 2018, 33
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 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 CCHC7 = 0.005 ± 0.007 (stat) ± 0.006(syst) at 7 TeV and A CCHC8 = 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 tt¯ system at 8 TeV, are consistent with the respective standard model predictions.
URI:	http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/3881 https://doi.org/10.1007/JHEP04(2018)033
ISSN:	1126-6708 1029-8479
Appears in Collections:	JOURNAL ARTICLES

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