Speaker
Description
Extended scalar sectors can modify the Higgs self-interactions and, in some scenarios, significantly enhance multi-Higgs production rates. In this talk, I will discuss the prospects for probing such effects through triple-Higgs production at future hadron colliders. I will compare cut-based and multivariate analysis strategies under realistic detector-smearing and background assumptions, and show how sensitivity to anomalous trilinear and quartic Higgs self-couplings can be extracted. I will also comment on the role of theoretical systematics, including EFT truncation choices and perturbative-unitarity considerations, as well as the dependence on collider energy and luminosity. Overall, the results indicate that triple-Higgs production can provide a meaningful probe of Higgs self-interactions and of new-physics effects associated with extended scalar sectors at future hadron colliders.