Mass and decays of Brout-Englert-Higgs scalar with extra generations
  The higher bound on the mass of the Brout-Englert-Higgs scalar boson (BEH boson for brevity) arising from radiative corrections is not stable when the Standard Model is extended to include non-decoupling particles. In particular additional generation{s} of fermions allow for a heavier scalar. We investigate how the decay branchings of scalar boson are affected by the opening of new channels. 
J.-M. Frere, A.N. Rozanov, M.I. Vysotsky