Global Constraints on Top Quark Anomalous Couplings

Abstract

The latest results on top quark physics, namely single top quark production cross sections, $W$-boson helicity and asymmetry measurements are used to probe the Lorentz structure of the $Wtb$ vertex. The increase of sensitivity to new anomalous physics contributions to the top quark sector of the Standard Model is quantified by combining the relevant results from Tevatron and the Large Hadron Collider. The results show that combining an increasing set of available precision measurements in the search for new physics phenomena beyond the Standard Model leads to significant sensitivity improvements, especially when compared with the current expectation for the High Luminosity run at the LHC.

5 pages, 2 figures

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• Next-to-next-to-leading-order collinear and soft gluon corrections for t-channel single top quark production
• NNLL resummation for s-channel single top quark production
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• A minimal set of top-Higgs anomalous couplings
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• Search for anomalous Wtb couplings and flavour-changing neutral currents in t-channel single top quark production in pp collisions at sqrt(s) = 7 and 8 TeV
• Studying the $Wtb$ vertex structure using recent LHC results
• Probing of $Wtb$ Anomalous Couplings via the $tW$ Channel of Single Top Production
• Analysis of the $Wtb$ vertex from the measurement of triple-differential angular decay rates of single top quarks produced in the $t$-channel at $\sqrt{s}$ = 8 TeV with the ATLAS detector

Cited by in corpus (8)

• Probing anomalous $Wtb$ couplings at the LHC in single top quark production through $t$-channel
• Study of top quark dipole interactions in $t\bar{t}$ production associated with two heavy gauge bosons at the LHC
• Measurement of the polarisation of single top quarks and antiquarks produced in the $t$-channel at $\sqrt{s}=13$ TeV and bounds on the $tWb$ dipole operator from the ATLAS experiment
• Top Quark Anomalous Couplings at the High-Luminosity Phase of the LHC
• Signs of new physics in top quark pair production associated with a neutrino pair at the LHC
• The anomalous $Wtb$ vertex and top-pair production at the LHC
• Probing top quark anomalous moments in $W$ boson associated single top quark production at the LHC using polarization and spin correlation
• Asymmetries in invisible Dark Matter mediator production associated with $t\bar{t}$ final states