Analysis of anomalous quartic $WWZ\gamma$ couplings in $\gamma p$ collision at the LHC

Abstract

Gauge boson self-couplings are exactly determined by the non-Abelian gauge nature of the Standard Model (SM), thus precision measurements of these couplings at the LHC provide an important opportunity to test the gauge structure of the SM and the spontaneous symmetry breaking mechanism. It is a common way to examine the physics of anomalous quartic gauge boson couplings via effective Lagrangian method. In this work, we investigate the potential of the process $pp\to p\gamma p\to pWZqX$ to analyze anomalous quartic $WWZ\gamma$ couplings by two different CP-violating and CP-conserving effective Lagrangians at the LHC. We calculate $95\%$ confidence level limits on the anomalous coupling parameters with various values of the integrated luminosity. Our numerical results show that the best limits obtained on the anomalous couplings $\frac{k_0^W}{{\Lambda }^2}$, $\frac{k_c^W}{{\Lambda }^2}$, $\frac{k_2^m}{{\Lambda }^2}$ and $\frac{a_n}{{\Lambda }^2}$ at $\sqrt{s}=14$ TeV and an integrated luminosity of $L_{int}=100$ fb${}^{-1}$ are $[-1.37;1.37]\times 10^{-6}$ GeV${}^{-2}$, $[-1.88;1.88]\times 10^{-6}$ GeV${}^{-2}$, $[-6.55;6.55]\times 10^{-7}$ GeV${}^{-2}$ and $[-2.21;2.21]\times 10^{-6}$ GeV${}^{-2}$, respectively. Thus, $\gamma p$ mode of photon-induced reactions at the LHC highly improves the sensitivity limits of the anomalous coupling parameters $\frac{k_0^W}{{\Lambda }^2}$, $\frac{k_c^W}{{\Lambda }^2}$, $\frac{k_2^m}{{\Lambda }^2}$ and $\frac{a_n}{{\Lambda }^2}$.

19 pages, 5 figures, 3 tables, final version to appear in Phys.Lett.B

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Cited by in corpus (9)

• Top Quark Anomalous Electromagnetic Couplings in Photon-Photon Scattering at the LHC
• Study on the anomalous quartic $W^{+}{W}^{-}\gamma \gamma$ couplings of electroweak bosons in $e^{-}p$ collisions at the LHeC and the FCC-he
• Pinning down the gauge boson couplings in $WW\gamma$ production using forward proton tagging
• Probe of anomalous quartic $WWZ\gamma$ couplings in the photon-photon collisions
• Future projections on the anomalous $WW\gamma \gamma$ couplings in hadron-hadron interactions at the FCC-hh
• Central exclusive production of $W$ boson pairs in $pp$ collisions at the LHC in hadronic and semi-leptonic final states
• Searching for anomalous top quark interactions with proton tagging and timing detectors at the LHC
• Sensitivity analysis for the anomalous $W^{+}{W}^{-}\gamma$ couplings at the LHeC and the FCC-he
• Bounds on anomalous quartic $WWZ\gamma$ couplings in $e^{-}p$ collisions at the FCC-he