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Top quark couplings and Polarization

Precise measurements of top quark couplings are presented. The measurements cover the single top tW cross section, the measurement of the top-quark branching-fraction ratio R=B(t $\to$ Wb)/B(t $\to$ Wq) and the CKM matrix element V$_{\rm tb}$ from the single top cross sections. Top quark polarisatio...

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Detalles Bibliográficos
Autor principal: Codispoti, Giuseppe
Lenguaje:eng
Publicado: 2014
Materias:
Acceso en línea:https://dx.doi.org/10.1088/1742-6596/556/1/012031
http://cds.cern.ch/record/1754901
Descripción
Sumario:Precise measurements of top quark couplings are presented. The measurements cover the single top tW cross section, the measurement of the top-quark branching-fraction ratio R=B(t $\to$ Wb)/B(t $\to$ Wq) and the CKM matrix element V$_{\rm tb}$ from the single top cross sections. Top quark polarisation in the t-channel single-top quark production and dilepton t$\bar{\rm t}$, and W-helicity fraction measurements along with searches of top quark anomalous couplings in lepton plus jet channel are also presented. Finally measurements of top quark pair production in association with a W or Z boson or a photon are presented.