Speaker
Sven Heinemeyer
(IFCA (CSIC, Santander))
Description
Most analyses of triple Higgs couplings (THCs) focused on the SM-like coupling, $\lambda_{hhh}$, assuming the SM value, $\kappa_\lambda := \lambda_{hhh}/\lambda_{hhh}^{\rm SM} = 1$.
We will discuss two BSM physics cases:
1) $\kappa_\lambda \neq 1$, which is suggested by the requirements for baryogenesis (to explain the the matter-antimatter asymmetry of the universe.
2) BSM THCs, such as $\lambda_{hhH}$, where $H$ represents a heavy BSM Higgs boson.
We will show how ILC/CLIC can analyze these two scenarios, far beyond the
capabilities of the HL-LHC.
Primary author
Sven Heinemeyer
(IFCA (CSIC, Santander))
