Probing anomalous $tq\gamma$ and $tqg$ couplings via single top production in association with photon at FCC-hh

Abstract

We study the anomalous FCNC $tq\gamma$ and $tqg$ couplings via $pp\to Wb\gamma +X$ signal process including realistic detector effects for both leptonic and hadronic decay channels of the W boson at 100 TeV FCC-hh. The relevant background are considered in the cut based analysis to obtain not only limits on the anomalous $\lambda$ and $\zeta$ couplings but also branching ratios of $t\to q\gamma$ and $t\to qg$ decay channels. We find that the sensitivity to the branching ratio of $t\to q\gamma$ channel is three order better than the available LHC experimental limits, and it is comparable for the branching ratio of the $t\to qg$ decay channel with an integrated luminosity of 10 ab${}^{-1}$ at 2$\sigma$ significance level.

18 pages, 7 figures, 4 tables, accepted version by Eur. Phys. J. C

References in corpus (12)

• PYTHIA 6.4 Physics and Manual
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• A minimal set of top-Higgs anomalous couplings
• Automatic computations at next-to-leading order in QCD for top-quark flavor-changing neutral processes
• Next-to-leading order QCD corrections to the top quark decay via model-independent FCNC couplings
• Physics at the FCC-hh, a 100 TeV pp collider
• Top quark FCNCs in extended Higgs sectors
• Dimension-six anomalous $tq\gamma$ couplings in $\gamma \gamma$ collision at the LHC
• QCD Corrections to Flavor Changing Neutral Coupling Mediated Rare Top Quark Decays
• Photon initiated single top quark production via flavor-changing neutral currents at the LHC
• Searches for anomalous $tqZ$ couplings from the trilepton signal of $tZ$ associated production at the 14 TeV LHC
• Search for top quark flavour changing neutral currents in same-sign top quark production

Cited by in corpus (11)

• Probing top quark FCNC couplings in the triple-top signal at the high energy LHC and future circular collider
• Top quark anomalous FCNC production via $tqg$ couplings at FCC-hh
• Flavour-changing neutral scalar interactions of the top quark
• Loop induced top quark FCNC through top quark and dark matter interactions
• Probing the anomalous $tq\gamma$ couplings through single top production at the future lepton-hadron colliders
• Scotogenic top-quark FCNC decays
• Flavour-changing top quark decays in the alternative left-right model
• Machine Learning Approaches to Top Quark Flavor-Changing Four-Fermion Interactions in Trilepton Signals at the LHC
• Probing the anomalous tqgamma couplings in photon-proton collisions
• Investigation of the FCNC couplings between the top quark and the photon in $\gamma \gamma$ and ${\gamma }^{\ast }{\gamma }^{\ast }$ collisions at the CLIC
• Sensitivity analysis for the anomalous $tq\gamma$ couplings via $\gamma q\to t\gamma$ subprocess in photon-proton collisions at the FCC-$\mu$p