Speaker
Description
The Higgs boson provides a unique window into new physics, and a high-energy muon collider offers an unparalleled environment to explore this potential. In this talk, I will discuss how a dedicated forward muon detector can be leveraged to probe BSM physics in the Higgs sector. Detecting forward muons allows us to efficiently search for invisible Higgs decays and heavy states that couple to the SM through the Higgs portal, providing e.g. the best discovery channel of derivatively coupled Higgs portal dark matter. In addition, angular correlations of the forward muons are sensitive to the quantum interference between SM and BSM vector boson helicity amplitudes, providing an excellent indirect probe of BSM physics coupled to the Higgs. As a case study, I will highlight how this approach can be applied to probe the CP structure of the Higgs–Z coupling.