Probing the anomalous tqgamma couplings in photon-proton collisions

Abstract

The top quark flavor changing neutral current processes are extremely suppressed within the Standard Model. Nevertheless, they could be enhanced in a new physics model beyond the Standard Model. Investigating the top quark's flavor changing neutral current interactions at colliders would be an important test in terms of new physics. In this work, we examine the potentials of the processes $e^{-}p\to e^{-}{\gamma }^{\ast }p\to e^{-}{W}^{+}b{\gamma }^{\ast }\to e^{-}j\bar{j}b{\gamma }^{\ast }$ and $e^{-}p\to e^{-}{\gamma }^{\ast }p\to e^{-}{W}^{+}b{\gamma }^{\ast }\to e^{-}\text{l}{\nu }_{\text{l}}b{\gamma }^{\ast }$ at the FCC-eh with $\sqrt{s}=7.08$ and $10.0TeV$ to study anomalous $tq\gamma$ couplings via effective Lagrangians. We obtain $95\%$ confidence level sensitivities on the anomalous coupling parameters at the three FCC-eh energies and various integrated luminosities. We find that our limits are at least two orders of magnitude better than the current LHC experimental results.

arXiv comment15 pages , 4 figures

References in corpus (59)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
• FeynRules 2.0 - A complete toolbox for tree-level phenomenology
• UFO - The Universal FeynRules Output
• MadAnalysis 5, a user-friendly framework for collider phenomenology
• Flavor Structure of Warped Extra Dimension Models
• Coherent gamma-gamma and gamma-A interactions in very peripheral collisions at relativistic ion colliders
• ATLAS $b$-jet identification performance and efficiency measurement with $t\bar{t}$ events in $pp$ collisions at $\sqrt{s}=13$ TeV
• A minimal set of top anomalous couplings
• A minimal set of top-Higgs anomalous couplings
• SUSY-induced FCNC top-quark processes at the Large Hadron Collider
• New Supersymmetric Contributions to $t->cV$
• Probing flavor changing top-charm-scalar interactions in $e^{+}{e}^{-}$ collisions
• Top-Quark Decay Via Flavor-Changing Neutral Currents at Hadron Colliders
• Tagging Two-Photon Production at the LHC
• Rare top decays t -> c gamma, t -> c g and CKM unitarity
• Top-Charm Associated Production in High Energy $e^{+}{e}^{-}$ Collisions
• Search for Single Top Production at LEP
• Search for the Flavor Changing Neutral Current Decay t $\to Zq$ in $p\bar{p}$ Collisions at $\sqrt{s}=1.96$
• Search for Single Top Quark Production at LEP2
• Top-Quark Physics at the CLIC Electron-Positron Linear Collider
• Search for top-quark production via flavor-changing neutral currents in W+1 jet events at CDF
• Sensitivity to anomalous quartic gauge couplings in photon-photon interactions at the LHC
• FCC Based Lepton-Hadron and Photon-Hadron Colliders: Luminosity and Physics
• Search for Single Top Production in e+e- Collisions at sqrt(s) up to 209GeV
• A search for flavour changing neutral currents in top-quark decays in pp collision data collected with the ATLAS detector at sqrt(s) = 7 TeV
• Search for anomalous single top quark production in association with a photon in pp collisions at sqrt(s) = 8 TeV
• Search for flavor changing neutral currents in decays of top quarks
• Scalar FCNC and rare top decays in a two Higgs doublet model "for the top"
• Search for single top production via FCNC at LEP at sqrt(s) = 189-208 GeV
• Probe Anomalous $tq\gamma$ couplings through Single Top Photoproduction at the LHC
• Search for the flavor-changing neutral current interactions of the top quark and the Higgs boson which decays into a pair of b quarks at $\sqrt{s}=$ 13 TeV
• Probing the Anomalous FCNC Interactions in Top-Higgs Final State and Charge Ratio Approach
• Inclusive Dijet Production at Low Bjorken-x in Deep Inelastic Scattering
• Constraints on top quark FCNC from electroweak precision measurements
• Top-quark FCNC Productions at LHC in Topcolor-assisted Technicolor Model
• Effective Lagrangian approach to Higgs-mediated FCNC top quark decays
• Single top quark production as a probe of anomalous $tq\gamma$ and $tqZ$ couplings at the FCC-ee
• Search for flavour-changing neutral currents in processes with one top quark and a photon using 81 fb${}^{-1}$ of $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS experiment
• Probing top quark FCNC couplings in the triple-top signal at the high energy LHC and future circular collider
• Dimension-six anomalous $tq\gamma$ couplings in $\gamma \gamma$ collision at the LHC
• Next-to-leading order QCD corrections to the single top quark production via model-independent t-q-g flavor-changing neutral-current couplings at hadron colliders
• Photon initiated single top quark production via flavor-changing neutral currents at the LHC
• Constraints on top quark flavor changing neutral currents using diphoton events at the LHC
• Top-Quark FCNC Decay t->cgg in Topcolor-assisted Technicolor Model
• Next-to-leading order QCD corrections to the top quark associated with $\gamma$ production via model-independent flavor-changing neutral-current couplings at hadron colliders
• The Constraint on FCNC Coupling of the Top Quark with a Gluon from ep Collisions
• Search for anomalous couplings via single top quark production in association with a photon at LHC
• Top quark FCNC couplings at future circular hadron electron colliders
• Anomalous $tq\gamma$ coupling effects in exclusive radiative B-meson decays
• Search for Top Quark FCNC Couplings in Z' Models at the LHC and CLIC
• Probing anomalous $tq\gamma$ and $tqg$ couplings via single top production in association with photon at FCC-hh
• Probing Top Quark FCNC tqgamma and tqZ Couplings at Future Electron-Proton Colliders
• Study of the Top Quark FCNC
• Anomalous production of top quarks at CLIC+LHC based gamma p colliders
• Impact of FCNC top quark interactions on BR(t -> b W)
• Probing FCNC couplings in single top quark production associated with a neutral gauge boson at future lepton colliders