Constraints on the Wtb vertex from early LHC data

Understand

We use the recent measurements of top quark decay asymmetries in ATLAS and the t-channel single top cross section in CMS to set the first combined LHC limits on the Wtb vertex.

• This combination allows to obtain much better limits than the separate measurements.
• The resulting constraints are comparable, although still weaker, than the ones obtained using Tevatron data with much more statistics.