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|Title:||Measurement of the charge asymmetry in dileptonic decays of top quark pairs in pp collisions at √s = 7 TeV using the ATLAS detector|
|Other Titles:||Measurement of the charge asymmetry in dileptonic decays of top quark pairs in pp collisions at root s = 7 TeV using the ATLAS detector|
Abdel Khalek, S.
|Citation:||Journal of High Energy Physics, 2015; 2015(5)|
|G. Aad … P. Jackson … L. Lee … A. Petridis … N. Soni ... M. White ... et al. (The ATLAS Collaboration)|
|Abstract:||A measurement of the top-antitop (tt¯) 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 7 TeV 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: ACℓℓ based on the identified charged leptons, and Att¯C, based on the reconstructed tt final state. The asymmetries are measured to be. AℓℓC=0.024±0.015(stat.)±0.009(syst.), Att¯C=0.021±0.025(stat.)±0.017(syst.). The measured values are in agreement with the Standard Model predictions.|
|Keywords:||Hadron-Hadron scattering; top physics|
|Rights:||© The Author(s) 2015. Open Access, Copyright CERN, for the benefit of the ATLAS Collaboration. Article funded by SCOAP3.|
|Appears in Collections:||Physics publications|
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