Searches for BSM (neutral) Higgs bosons in bosonic decays (VV,VH,HH) in ATLAS

The discovery of the Standard Model Higgs boson confirmed the prediction of the Standard Model that fundamental mass can be generated through the interactions of gauge bosons and fermions with a scalar particle. However, unanswered question in the Standard Model, such as the fate of the unification of couplings and the nature of new mysteries like dark matter have motivated a suite of theoretical efforts that require new Higgs bosons to exist. In this talk, I will summarize a wide range of efforts by the ATLAS Experiment to search for new scalars using diboson final states of the scalar decay, or the production of new scalars from the decay of a boson.