High-Mass New Scalars at the LHC, with H in the Final State

The search for new particles, conducted at the LHC by the ATLAS and CMS collaborations, covers several production and decay modes, leading to a large variety of final states that could be observed in both detectors. This review focuses on the production of new heavy scalars that have a Higgs boson in the final state. Three cases are covered: resonant production of a heavy scalar X decaying into a Higgs boson and a lighter scalar S, heavy neutral Higgs boson decaying into another neutral Higgs boson and a Z boson, and a heavy charged Higgs boson production with subsequent decay into another neutral Higgs boson and a W boson. The reviewed searches are based on the complete LHC Run-2 dataset and partial Run-3 dataset.