Measurement of the charge asymmetry in dileptonic decays of top quark pairs in pp collisions at √s = 7 TeV using the ATLAS detector Aad, G. Aguilar Saavedra, Juan Antonio Atlas Collaboration, / Hadron-Hadron Scattering Top physics A measurement of the top-antitop (t¯t) charge asymmetry is presented using data corresponding to an integrated luminosity of 4.6 fb−1 of LHC pp collisions at a centreof- mass energy of 7TeV collected by the ATLAS detector. Events with two charged leptons, at least two jets and large missing transverse momentum are selected. Two observables are studied: A`` C based on the identified charged leptons, and At¯t C , based on the reconstructed t¯t final state. The asymmetries are measured to be A`` C = 0.024 ± 0.015 (stat.) ± 0.009 (syst.) , At¯t C = 0.021 ± 0.025 (stat.) ± 0.017 (syst.) . The measured values are in agreement with the Standard Model predictions. 2024-10-17T10:19:40Z 2024-10-17T10:19:40Z 2015-05-12 journal article Aad, G. & Rodríguez Chala, M. & ATLAS collaboration. J. High Energ. Phys. 2015, 61 (2015). [https://doi.org/10.1007/JHEP05(2015)061] https://hdl.handle.net/10481/96065 10.1007/JHEP05(2015)061 eng http://creativecommons.org/licenses/by/4.0/ open access Atribución 4.0 Internacional Springer