Future projections on the anomalous WWγγ couplings in hadron-hadron interactions at the FCC-hh

We carry out a study in the approach of a dimension-eight effective field theory on the anomalous quartic WW gamma gamma couplings that arise from the process pp -> WW gamma gamma at the Future Circular Collider-hadron hadron (FCC-hh). The process is sensitive to the WW gamma gamma vertex, and future projections on the anomalous f(M,i)/Lambda(4) and f(T,j)/Lambda(4) couplings can be put by measurements of WW gamma gamma production. We illustrate the physics opportunities and reach of the FCC-hh operating for a high integrated luminosity scenario of L = 1,5, 10, 30 ab(-1) of proton-proton collisions at a center-of-mass energy of root s = 100 TeV and systematic uncertainties of delta(sys) = 0%, 3%, 5%, 10%. Production cross-sections of the signal and the sensitivity constraints on the anomalous f(M ,i)/Lambda(4) and f(T ,j)/Lambda(4)couplings at 95% C.L. are identified through the leptonic and hadronic decay modes of the W-boson. The FCC-hh sensitivity on these anomalous couplings is expected might reach up to the order of magnitude O(10(-4) - 10(1)). These sensitivity perspectives indicate that the pp -> WW gamma gamma channel at the FCC-hh has a greater potential to search for the anomalous quartic WW gamma gamma couplings and to search for new physics than present colliders.

Automated summary

In this study, we investigate the anomalous quartic WW gamma gamma couplings in the pp -> WW gamma gamma process at the FCC-hh using a dimension-eight effective field theory. The sensitivity of the FCC-hh to these couplings is determined through measurements of WW gamma gamma production. Our results show that the FCC-hh has a great potential to search for the anomalous couplings and new physics.