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ATLAS_2016_I1449082

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Measurements of the top-antitop quark pair production charge asymmetry in the dilepton channel are presented using data corresponding to an integrated luminosity of 20.3fb1 from pp collisions at a center-of-mass energy of s=8 TeV collected with the ATLAS detector at the Large Hadron Collider at CERN. Inclusive and differential measurements as a function of the invariant mass, transverse momentum, and longitudinal boost of the tˉt system are performed both in the full phase space and in a fiducial phase space closely matching the detector acceptance (at least 2 leptons and 2 jets with pT>25 GeV and |η|<2.5). Two observables are studied: AC based on the selected leptons and AtˉtC based on the reconstructed tˉt final state. The unfolded distributions of Δ|η|=|η|+|η| and Δ|y|=|y|top|y|antitop are provided. USERS SHOULD NOTE THAT EXPLICIT RECONSTRUCTION OF INDIVIDUAL STANDARD MODEL NEUTRINOS IS USED IN THIS ANALYSIS ROUTINE TO MATCH THE MONTE-CARLO-BASED CORRECTION TO THE FIDUCIAL REGION APPLIED IN THE PAPER.

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