Modeling of anomalous Wtb interactions using subsidiary fields

Abstract

A method to simulate anomalous fermion-boson interactions in Wtb vertex is presented with a minimal set of simulated samples of single top quark events at the LHC energies. In proposed method additional auxiliary vector fields corresponding to the Standard Model gauge fields are implemented for each type of the anomalous vertex structure. The method allows to simulate a manifestation of anomalous gauge couplings in two approaches used in experimental analyses either keeping only the linear order contributions in the anomalous couplings or keeping all contributions in numerators and denominators as appeared in matrix elements. All the single top quark production mechanisms, $t$-, $s$- and associative tW-channels are considered. The correctness of the proposed method is demonstrated.

arXiv admin note: substantial text overlap with arXiv:1512.00826

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Cited by in corpus (6)

• 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
• Single top-quark production at the Tevatron and the LHC
• Transverse Momentum Resummation for $s$-channel single top quark production at the LHC
• Study of top quark dipole interactions in $t\bar{t}$ production associated with two heavy gauge bosons at the LHC
• Symbolic expressions for fully differential single top quark production cross section and decay width of polarized top quark in the presence of anomalous Wtb couplings
• The anomalous $Wtb$ vertex and top-pair production at the LHC