Abstract
Higgs Potential 2022 Proceeding. The Higgs boson (H) was discovered at the Large Hadron Collider (LHC) in 2012, by the ATLAS and CMS collaborations. Many of its properties have been measured. However, the ultimate test of electroweak symmetry breaking, the Higgs boson trilinear self-coupling remains unclear. This coupling is uniquely accessible in the Di-Higgs production. In this talk, the author presents the results of searches for Higgs boson pair production in the bb¯τ+τ− final state at ATLAS. The searches use 139 fb1− of pp collision data with s=13 TeV recorded by the ATLAS experiment at the LHC between 2015 and 2018. The semi-leptonic and fully hadronic di-tau final states are considered. Upper limits are set on the non-resonant di-Higgs production cross-section assuming Standard Model kinematics and on the resonant di-Higgs production cross-section as a function of the resonance mass.
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