We present an analysis of the forward-backward asymmetry in the production of top quark pairs at the Tevatron collider. We use novel Monte Carlo methods for merging matrix elements and parton showers to combine next-to-leading-order QCD predictions for tt̄ and tt̄+jet production. Theoretical uncertainties are quantified in detail. We find agreement with experimental data on the transverse-momentum dependence of the asymmetry.
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Höche et al. (2013) studied this question.
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