Probing Triple-W Production and Anomalous WWWW Coupling at the CERN LHC and future 100TeV proton-proton collider

TL;DR

This study evaluates the potential of the LHC and future 100TeV colliders to measure triple W boson production and detect deviations from the Standard Model via anomalous WWWW couplings, using advanced simulation and analysis techniques.

Contribution

It provides a comprehensive Monte Carlo analysis of WWW production and anomalous couplings at current and future colliders, incorporating detector effects and multivariate methods.

Findings

Significance of observing SM WWW production at various energies and luminosities.

Constraints on Dim-8 anomalous WWWW coupling parameters.

Potential improvements using multivariate analysis techniques.

Abstract

Triple gauge boson production at the LHC can be used to test the robustness of the Standard Model and provide useful information for VBF di-boson scattering measurement. Especially, any derivations from SM prediction will indicate possible new physics. In this paper we present a detailed Monte Carlo study on measuring WWW production in pure leptonic and semileptonic decays, and probing anomalous quartic gauge WWWW couplings at the CERN LHC and future hadron collider, with parton shower and detector simulation effects taken into account. Apart from cut-based method, multivariate boosted decision tree method has been exploited for possible improvement. For the leptonic decay channel, our results show that at the sqrt{s}=8(14)[100] TeV pp collider with integrated luminosity of 20(100)[3000] fb-1, one can reach a significance of 0.4(1.2)[10]sigma to observe the SM WWW production. For the semileptonic decay channel, one can have 0.5(2)[14]sigma to observe the SM WWW production. We also give constraints on relevant Dim-8 anomalous WWWW coupling parameters.