Measurement of the top quark charge in pp collisions at √s = 7 TeV with the ATLAS detector

Jackson, P.Soni, N.White, M.ATLAS collaboration,2015-01-072015-01-072013The Journal of High Energy Physics, 2013; 2013(11):31-1-31-411029-84791029-8479http://hdl.handle.net/2440/88553A measurement of the top quark electric charge is carried out in the ATLAS experiment at the Large Hadron Collider using 2.05 fb−1 of data at a centre-of-mass energy of 7 TeV. In units of the elementary electric charge, the top quark charge is determined to be 0.64 ± 0.02 (stat.) ± 0.08 (syst.) from the charges of the top quark decay products in single lepton tt¯ candidate events. This excludes models that propose a heavy quark of electric charge −4/3, instead of the Standard Model top quark, with a significance of more than 8σ.enOpen Access, Copyright CERN, for the benefit of the ATLAS collaboration. This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.Hadron-Hadron Scattering; Top physicsMeasurement of the top quark charge in pp collisions at √s = 7 TeV with the ATLAS detectorMeasurement of the top quark charge in pp collisions at root s = 7 TeV with the ATLAS detectorJournal article002013733410.1007/JHEP11(2013)0310003267195000012-s2.0-8489638428614907Jackson, P. [0000-0002-0847-402X]White, M. [0000-0001-5474-4580]