Zero and one jet combined NLO analysis of the top quark forward-backward asymmetry
Stefan Hoeche, Junwu Huang, Gionata Luisoni, Marek Schoenherr, Jan, Winter
TL;DR
This paper introduces a new Monte Carlo approach to analyze the top quark forward-backward asymmetry at NLO, showing good agreement with experimental data and providing detailed uncertainty quantification.
Contribution
It presents a novel method for merging NLO QCD predictions for top pair and top pair plus jet production using advanced Monte Carlo techniques.
Findings
Agreement with experimental data on asymmetry dependence
Quantified theoretical uncertainties
Improved NLO predictions for top quark production
Abstract
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 NLO QCD predictions for tt and tt+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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