Analysis of the anomalous quartic $WWWW$ couplings at the LHeC and the FCC-he

Abstract

The quartic gauge boson couplings that identify the strengths of the gauge boson self-interactions are exactly determined by the non-Abelian gauge nature of the Standard Model. The examination of these couplings at $ep$ collisions with high center-of-mass energy and high integrated luminosity provides an important opportunity to test the validity of the Standard Model and the existence of new physics beyond the Standard Model. The quartic gauge boson couplings can contribute directly to multi-boson production at colliders. Therefore, we examine the potential of the process $ep\to {\nu }_e{W}^{+}{W}^{-}j$ at the Large Hadron Electron Collider and the Future Circular Collider-hadron electron to study non-standard $WWWW$ couplings in a model independent way by means of the effective Lagrangian approach. We present an investigation on measuring $W^{+}{W}^{-}$ production in pure leptonic and semileptonic decay channels. In addition, we calculate the sensitivity limits at $95\%$ Confidence Level on the anomalous $\frac{f_{M0}}{{\Lambda }^4}$, $\frac{f_{M1}}{{\Lambda }^4}$, $\frac{f_{M7}}{{\Lambda }^4}$, $\frac{f_{S0}}{{\Lambda }^4}$, $\frac{f_{S1}}{{\Lambda }^4}$, $\frac{f_{T0}}{{\Lambda }^4}$, $\frac{f_{T1}}{{\Lambda }^4}$ and $\frac{f_{T2}}{{\Lambda }^4}$ couplings obtained by dimension-8 operators through the process $ep\to {\nu }_e{W}^{+}{W}^{-}j$ for the Large Hadron Electron Collider and the Future Circular Hadron Electron Collider's different center-of-mass energies and integrated luminosities. Our results show that with the process $ep\to {\nu }_e{W}^{+}{W}^{-}j$ at the Large Hadron Electron Collider and the Future Circular Collider-hadron electron the sensitivity estimated on the anomalous $WWWW$ couplings can be importantly strengthened.

33 pages, 9 figures and 25 tables

References in corpus (18)

• 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
• p p -> j j e+/- mu+/- nu nu and j j e+/- mu-/+ nu nu at O(α_{em}^6) and O(α_{em}^4 α_s^2) for the Study of the Quartic Electroweak Gauge Boson Vertex at LHC
• Measurements of production cross sections of WZ and same-sign WW boson pairs in association with two jets in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Measurement of vector boson scattering and constraints on anomalous quartic couplings from events with four leptons and two jets in proton-proton collisions at sqrt(s) = 13 TeV
• Search for anomalous electroweak production of vector boson pairs in association with two jets in proton-proton collisions at 13 TeV
• Measurement of electroweak WZ boson production and search for new physics in WZ $+$ two jets events in pp collisions at $\sqrt{s}=$ 13 TeV
• Sensitivity to anomalous quartic gauge couplings in photon-photon interactions at the LHC
• Anomalous quartic ZZgammagamma couplings in gamma-proton collision at the LHC
• Determination of New Electroweak Parameters at the ILC - Sensitivity to New Physics
• Study of $WW\gamma$ and $WZ\gamma$ production in $pp$ collisions at $\sqrt{s}=8$ TeV and search for anomalous quartic gauge couplings with the ATLAS experiment
• Search for triboson $W^{\pm }{W}^{\pm }{W}^{\mp }$ production in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• Search for the production of W${}^{\pm }$W${}^{\pm }$W${}^{\mp }$ events at $\sqrt{s}=$ 13 TeV
• Analysis of anomalous quartic $WWZ\gamma$ couplings in $\gamma p$ collision at the LHC
• Anomalous Quartic $WW\gamma \gamma$ and $ZZ\gamma \gamma$ Couplings in $e\gamma$ Collision With Initial Beams and Final State Polarizations
• Probing Triple-W Production and Anomalous WWWW Coupling at the CERN LHC and future 100TeV proton-proton collider
• Probe of anomalous quartic $WWZ\gamma$ couplings in the photon-photon collisions
• Search for anomalous quartic $WWZ\gamma$ couplings at the future linear $e^{+}{e}^{-}$ collider