HHH Whitepaper

Abstract

We here report on the progress of the HHH Workshop, that took place in Dubrovnik in July 2023. After the discovery of a particle that complies with the properties of the Higgs boson of the Standard Model, all Standard Model (SM) parameters are in principle determined. However, in order to verify or falsify the model, the full form of the potential has to be determined. This includes the measurement of the triple and quartic scalar couplings. We here report on ongoing progress of measurements for multi-scalar final states, with an emphasis on three SM-like scalar bosons at 125 GeV, but also mentioning other options. We discuss both experimental progress and challenges as well as theoretical studies and models that can enhance such rates with respect to the SM predictions

117 pages, 56 figures; Whitepaper resulting from HHH Workshop in Dubrovnik 2023, https://indico.cern.ch/event/1232581/; v2: small typos corrected; v3: 2 authors added, corresponds to published journal version

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Cited by in corpus (10)

• A search for triple Higgs boson production in the $6b$ final state using $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Interference effects in resonant di-Higgs production at the LHC in the Higgs singlet extension
• Les Houches 2023 -- Physics at TeV Colliders: Report on the Standard Model Precision Wishlist
• Probing the Inert Doublet Model via Vector-Boson Fusion at a Muon Collider
• Extracting Higgs Self-Coupling Constraints through Triple Higgs Boson Production at Future Hadron Colliders
• Reconstruction of boosted and resolved multi-Higgs-boson events with symmetry-preserving attention networks
• Maximal value for trilinear Higgs coupling in a 3-3-1 EFT
• Interference effects in new physics searches
• Triple Higgs Production at Muon Colliders in the Higgs Triplet Model
• Constraining the Higgs potential using multi-Higgs production