# Search for anomalous Wtb couplings in single top quark production in ppbar collisions at sqrt(s) = 1.96 TeV

Abstract : We present new direct constraints on a general $Wtb$ interaction using data corresponding to an integrated luminosity of 5.4 fb$^{-1}$ collected by the D0 detector at the Tevatron $p\bar{p}$ collider. The standard model provides a purely left-handed vector coupling at the $Wtb$ vertex, while the most general, lowest dimension Lagrangian allows right-handed vector and left- or right-handed tensor couplings as well. We obtain precise limits on these anomalous couplings by comparing the data to the expectations from different assumptions on the $Wtb$ coupling.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00634827
Contributor : Emmanuelle Vernay <>
Submitted on : Monday, October 24, 2011 - 9:43:38 AM
Last modification on : Thursday, November 19, 2020 - 12:58:48 PM

### Citation

V.M. Abazov, B. Abbott, B.S. Acharya, M. Adams, T. Adams, et al.. Search for anomalous Wtb couplings in single top quark production in ppbar collisions at sqrt(s) = 1.96 TeV. Physics Letters B, Elsevier, 2012, 708, pp.21-26. ⟨10.1016/j.physletb.2012.01.014⟩. ⟨in2p3-00634827⟩

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