Measuring Trilinear Higgs Couplings in the MSSM

Trilinear couplings of the neutral CP -even Higgs bosons in the Minimal Supersymmetric Standard Model (MSSM) can be measured through the multiple production of the lightest CP -even Higgs boson (h) at high-energy ee colliders. This includes the production of the heavier CP -even Higgs boson (H) via ee → ZH, in association with the CP -odd Higgs boson (A) in ee → AH, or via ee → νeν̄eH, with H subsequently decaying through H → hh. These processes can enable one to measure the trilinear Higgs couplings λHhh and λhhh, which can be used to theoretically reconstruct the Higgs potential. We delineate the regions of the MSSM parameter space in which these trilinear Higgs couplings could be measured.