Anomalous production of massive gauge boson pairs at muon colliders

Abstract

The prospects of searches for anomalous production of hadronically decaying weak boson pairs at proposed high-energy muon colliders are reported. Muon-muon collision events are simulated at $\sqrt{s}=6$, 10, and 30 TeV, corresponding to an integrated luminosity of $4$, $10$, and $10$ ab${}^{-1}$, respectively. Simulated $\hat{I}¼\hat{I}¼\to \mathrm{WW}+\hat{I}½\hat{I}½/\hat{I}¼\hat{I}¼$ events are used to set expected constraints on the structure of quartic vector boson interactions in the framework of a dimension-8 effective field theory. Similarly, $\hat{I}¼\hat{I}¼\to \mathrm{WW}/\mathrm{ZZ}+\hat{I}½\hat{I}½$ events are used to report constraints on the product of the cross section and branching fraction for vector boson fusion production of a heavy neutral Higgs boson decaying to weak boson pairs. These results are interpreted in the context of the Georgi-Machacek model.