Probing of $Wtb$ Anomalous Couplings via the $tW$ Channel of Single Top Production

Abstract

The potential of LHC for investigation of the $W$-$t$-$b$ vertex through the $tW$ channel of single top quark production is studied. Unlike the other two single top quark production processes ($t-$channel and $s-$channel), the $tW$ channel provides the possibility to study the $Wtb$ vertex without receiving contamination from FCNC. This study has been done at parton level but is involved the separation of signal from backgrounds when both $W$-bosons decay to leptons. In this study $\mathcal{C}\mathcal{P}$ is assumed to be conserved. The 68% C.L. bounds on the non-Standard Model couplings are estimated.

11 pages, 4 figures

References in corpus (3)

• Probing anomalous Wtb couplings in top pair decays
• Evidence for production of single top quarks and first direct measurement of |Vtb|
• ATLAS sensitivity to Wtb anomalous couplings in top quark decays

Cited by in corpus (7)

• Single top quark production at LHC with anomalous Wtb couplings
• The Top Quark Decay Vertex in Standard Model Extensions
• Constraints on the Wtb vertex from early LHC data
• Studying the $Wtb$ vertex structure using recent LHC results
• Anomalous Wtb couplings in gamma-proton collision at the LHC
• Noncommutative Standard Model in Top Quark Sector
• W-boson helicity fractions in top decay as probes of dimension-6 and dimension-8 SMEFT operators