Erlangen 2026 – scientific programme

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T: Fachverband Teilchenphysik

T 47: Higgs Physics V

T 47.6: Talk

Wednesday, March 18, 2026, 17:30–17:45, KH 00.014

Searching for Higgs boson pair production in the HH→ bbττ channel with the ATLAS experiment — •Katharina Häußler, Karl Jakobs, Brian Moser, Yingjie Wei, Christian Weiser, and Benedict Winter — University of Freiburg

The Standard Model (SM) predicts final states with multiple Higgs bosons, which have yet to be observed experimentally, to occur in proton-proton collisions at the LHC. The production of Higgs boson pairs is interesting especially because it provides a direct test of triple Higgs boson self-interactions. The bbττ final state presents a good compromise between expected signal yields and background contamination, making it one of the golden channels to explore this phenomenon.

This talk presents the current ATLAS HH→ bbττ analysis with a focus on the estimation of the background stemming from Z bosons produced in association with heavy flavour jets, which is a major background for the analysis.

Keywords: Di-Higgs; bbtautau