3 research outputs found

    Inclusive and differential measurements of the t(t)over-bar charge asymmetry in pp collisions at root s=8 TeV

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    Inclusive and differential measurements of the t(t)over-bar charge asymmetry in pp collisions at root s=8 TeV

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    The charge asymmetry is measured in proton–proton collisions at a centre-of-mass energy of . The data, collected with the CMS experiment at the LHC, correspond to an integrated luminosity of 19.7 fb−1. Selected events contain an electron or a muon and four or more jets, where at least one jet is identified as originating from b-quark hadronization. The inclusive charge asymmetry is found to be . In addition, differential charge asymmetries as a function of rapidity, transverse momentum, and invariant mass of the system are studied. For the first time at the LHC, the measurements are also performed in a reduced fiducial phase space of top quark pair production, with an integrated result of . All measurements are consistent within two standard deviations with zero asymmetry as well as with the predictions of the standard model

    Inclusive and differential measurements of the <tex>t\bar{t}</tex>chargeasymmetryinppcollisionsat<tex>s</tex> charge asymmetry in pp collisions at <tex>\sqrt{s}</tex>=8 TeV

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