  Supersymmetric models with an additional singlet field offer the Higgs boson
the possibility to decay to two pseudoscalars, a. If the mass of these
pseudoscalars is above the b bbar threshold, a -> b bbar is generically the
dominant decay mode. The decay h -> a a -> b bbar b bbar may be seen above
backgrounds at the Tevatron if the Higgs production cross section is enhanced
relative to that of the standard model.
