Abstract
Much progress has been made in understanding the Higgs boson in the ten
years since its discovery. This has enabled its use as a new probe for
physics beyond the Standard Model, which may be inaccessible through any
other means at present experiments. Higgs boson pair production enables us
to directly measure the shape of the Higgs potential via its
self-interaction, with far-reaching implications from our understanding of
the electroweak vacuum to baryogenesis in the early Universe. Experimental
constraints on this process at the LHC are sensitive both to direct
production of new particles that might decay to HH, as well as indirect
effects from fields that could interact with the Higgs in other ways,
including at higher energy scales. This talk will present the theoretical
background and latest results on Higgs boson pair production, highlighting
some of the experimental challenges and modern approaches for overcoming
them. Focus will be given to recent ATLAS results, and the bbbb final state
in particular.