Combination of searches for anomalous top quark couplings with 5.4 fb^-1 of ppbar collisions

TL;DR

This paper measures the tWb coupling form factors in top quark processes, setting upper limits on anomalous couplings using data from the D0 detector at the Tevatron with 5.4 fb^-1 of ppbar collisions.

Contribution

It combines electroweak single top production and W boson helicity measurements to constrain anomalous tWb couplings for the first time with this dataset.

Findings

Upper limits set on anomalous tWb coupling form factors.

Constraints improve understanding of top quark interactions.

Data analysis techniques for coupling measurement demonstrated.

Abstract

We present measurements of the tWb coupling form factors using information from electroweak single top quark production and from the helicity of W bosons from top quark decays in ttbar events. We set upper limits on anomalous tWb coupling form factors using data collected with the D0 detector at the Tevatron ppbar collider corresponding to an integrated luminosity of 5.4 fb^-1.