Publications [#306519] of Ayana T. Arce

Papers Accepted
  1. Aad, G; Abbott, B; Abdallah, J; Abdelalim, AA; Abdesselam, A; Abdinov, O; Abi, B; Abolins, M; AbouZeid, OS; Abramowicz, H; Abreu, H; Acerbi, E; Acharya, BS; Adamczyk, L; Adams, DL; Addy, TN; Adelman, J; Aderholz, M; Adomeit, S; Adragna, P; Adye, T; Aefsky, S; Aguilar-Saavedra, JA; Aharrouche, M; Ahlen, SP; Ahles, F; Ahmad, A; Ahsan, M; Aielli, G; Akdogan, T; Åkesson, TPA; Akimoto, G; Akimov, AV; Akiyama, A; Alam, MS; Alam, MA; Albert, J; Albrand, S; Aleksa, M; Aleksandrov, IN; Alessandria, F et al., Measurement of the charge asymmetry in top quark pair production in pp collisions at √s = 7 TeV using the ATLAS detector, The European Physical Journal C - Particles and Fields, vol. 72 no. 6 (2012), pp. 1-27 [doi] .

    Abstract:
    A measurement of the top-antitop production charge asymmetry AC is presented using data corresponding to an integrated luminosity of 1. 04 fb-1 of pp collisions at √s = 7 TeV collected by the ATLAS detector at the LHC. Events are selected with a single lepton (electron or muon), missing transverse momentum and at least four jets of which at least one jet is identified as coming from a b-quark. A kinematic fit is used to reconstruct the tt̄ event topology. After background subtraction, a Bayesian unfolding procedure is performed to correct for acceptance and detector effects. The measured value of AC is AC = -0.019±0.028 (stat.)±0.024(syst.), consistent with the prediction from the MC@NLO Monte Carlo generator of AC=0. 006±0. 002. Measurements of AC in two ranges of invariant mass of the top-antitop pair are also shown. © 2012 CERN for the benefit of the ATLAS collaboration.