Quantum effects to the Higgs boson self-couplings in the SM and in the   MSSM
  We show that the effects of heavy Higgs particles and heavy top-squarks in the one-loop self-couplings of the lightest CP-even MSSM Higgs boson decouple from the low energy theory when the self-couplings are expressed in terms of the Higgs boson mass M_h0. Our conclusion is that the h^0 self-interactions become very close to those of the SM Higgs boson and, therefore, MSSM quantum effects could only be revealed by very high precision experiments. 
Antonio Dobado, Maria J. Herrero, W. Hollik, Siannah Penaranda