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T: Fachverband Teilchenphysik
T 2: Higgs Physics I (HH and trilinear coupling)
T 2.6: Vortrag
Montag, 31. März 2025, 18:00–18:15, ZHG104
Improving the sensitivity to the Higgs boson self-coupling in the HH→ bbττ channel with the ATLAS experiment — •Katharina Häußler1, Karl Jakobs1, Karsten Köneke2, Yingjie Wei1, Christian Weiser1, and Benedict Winter1 — 1University of Freiburg — 2University of Göttingen
The Standard Model (SM) predicts final states with multiple Higgs bosons, involving processes with Higgs boson self-interactions, which have yet to be observed experimentally. Higgs boson pair production provides the most sensitive test of triple Higgs boson self-interactions and the bbττ final state presents a good compromise between expected signal yield and background contamination, making it one of the three golden channels to explore this phenomenon.
This talk focuses on improvements that can be made in future analyses to increase the sensitivity to the Higgs boson self-coupling modifier κλ. Significant deviations from the SM prediction would provide a strong indication of physics beyond the Standard Model.
Keywords: Di-Higgs; self-coupling; bbtautau