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T: Fachverband Teilchenphysik

T 75: Higgs Physics VII

T 75.1: Vortrag

Donnerstag, 19. März 2026, 16:15–16:30, KH 01.019

Projection Studies of the ttHH 1L Channel for the HL-LHC — •Doğa Elitez¹, Lucia Masetti², and Paul Gessinger¹ — ¹CERN — ²JGU Mainz

The Higgs boson self-coupling is a central ingredient of electroweak symmetry breaking, and constraining this coupling is essential for validating the Standard Model and determining the shape of the Higgs potential. The cross-section for Higgs-pair production in association with top quarks (ttHH) is expected to increase significantly at higher LHC beam energies, making ttHH production a compelling process to study in the high-luminosity LHC (HL-LHC) era. A particularly challenging and informative decay channel is the ttHH(6b) one-lepton channel, in which one of the top quarks decays semi-leptonically and produces an electron or muon, while the Higgs pair decays into four b-quarks. In this talk, projection studies of the ttHH(6b) one-lepton channel for the HL-LHC are presented.

Keywords: Di-Higgs