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

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

2011-10-10

arxiv.org/abs/1110.2103v2

Phys.Lett. B710 (2012) 671-675

Physics

High Energy Physics

High Energy Physics - Phenomenology

Published version

Scientific paper

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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