Speaker
Description
Obtaining experimental data on the trilinear Higgs boson self-coupling $\kappa_3$ and the quartic self-coupling $\kappa_4$ is crucial for understanding the structure of the Higgs potential in beyond the Standard Model theories. While Higgs pair production allows directly investigating $\kappa_3$, triple Higgs production processes offer complementary insights into $\kappa_3$ and can also provide initial experimental constraints on $\kappa_4$, despite the lower cross section rates. Our study focuses on triple Higgs production at the HL-LHC, using efficient Graph Neural Network techniques to maximise statistical significance in the $6b$ and $4b2\tau$ decay modes. We demonstrate the potential to establish limits on the values of both couplings beyond theoretical perturbative unitarity constraints. Furthermore, future high-energy lepton colliders operating at the TeV scale present opportunities for further analysis of triple Higgs production.
| Alternate track | 03. Beyond the Standard Model |
|---|---|
| I read the instructions above | Yes |
