Erlangen 2026 – scientific programme

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T: Fachverband Teilchenphysik

T 4: Higgs Physics I

T 4.3: Talk

Monday, March 16, 2026, 16:45–17:00, KH 00.016

Search for Boosted Higgs Pair Production From Vector Boson Fusion in the Single Lepton bbW⁺W⁻ Final State Using the ATLAS Detector — •Celine Stauch, Stefan Brückner, Lars Linden, Valerio d’Amico, Patrick Schumacher, and Otmar Biebel — LMU Munich

While the discovery of the Higgs boson solved one of the biggest problems in the standard model, even more than 10 years after its discovery, not all of its properties are well know. One of these is the quartic coupling of a Higgs boson pair to a pair of electroweak gauge bosons. A process suited to constrain this coupling is given by Di-Higgs production via vector boson fusion (VBF), the second most common production mode at LHC.
The presented search for VBF Di-Higgs production investigates the bbW⁺W⁻ final state with a single lepton. For this study a boosted approach is investigated, where Large Radius jets represent the hadronically decaying W and the H→ bb. This talk presents the Event Selection strategy using ATLAS run 2 datasets and first results for analysis optimizations to increase sensitivity.

Keywords: VBF; gauge bosons