Constraints on anomalous quartic gauge couplings by $\gamma \gamma \to W^{+}{W}^{-}$ scattering

Abstract

The vector boson scattering (VBS) processes in Large Hadron Collider (LHC) experiments offer a unique opportunity to probe the anomalous quartic gauge couplings (aQGCs). We study the dimension-8 operators contributing to the anomalous $\gamma \gamma WW$ coupling and the corresponding unitarity bounds via the exclusive $\gamma \gamma \to W^{+}{W}^{-}$ production in $pp$ collisions at LHC for a center of mass energy of $\sqrt{s}=13$ TeV. By analysing the kinematical features of the signal, we propose an event selection strategy to highlight the aQGC contributions. Based on the event selection strategy, the statistical significance of the signals are analyzed in detail, and the constraints on the coefficients of the anomalous quartic gauge operators are obtained.

arXiv comment14 pages, 6 figures, 5 tables; References have been updated in the replacement

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• MLAnalysis: An open-source program for high energy physics analyses
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• Search for Neutral Triple Gauge Couplings with $ZZ$ Production at Future Electron Positron Colliders
• Expected sensitivity on the anomalous quartic neutral gauge couplings in $\gamma \gamma$ collisions at the CLIC
• A quantum machine learning classifier to search for new physics