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arXiv · 1110.2103

Anomalous Wtb coupling and forward-backward asymmetry of top quark production at the Tevatron

K. Kolodziej
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Abstract

An influence of the anomalous Wtb coupling on forward-backward asymmetry of top quark pair production at the Tevatron is investigated taking into account decays of the top quarks to 6 fermion final states containing one charged lepton. To this end the most general effective Lagrangian of the Wtb interaction containing terms of dimension up to five is implemented into 'carlomat', a general purpose Monte Carlo program, which allows to compute automatically all necessary cross sections in the presence of anomalous vector and tensor form factors. A sample of results which illustrate little effect of the left- and right-handed tensor form factors on the t\bar t invariant mass dependent forward-backward asymmetry and the charge-signed rapidity distribution of the lepton originating from the W boson from top quark decay is shown.

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K. Kolodziej. 2012-04-23. Anomalous Wtb coupling and forward-backward asymmetry of top quark production at the Tevatron. https://doi.org/10.1016/j.physletb.2012.03.055

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