Some Conjectures on the Limit of Infinite Higgs Mass
  We consider a possible field theory candidate for the electroweak SU(2) x U(1) model where the limit of infinitely sharp Higgs potential is performed. We show that it is possible to formulate such a limit as a Stueckelberg massive non abelian gauge theory. 
Ruggero Ferrari, Marco Picariello (Dip. di Fisica, Universita' di   Milano and INFN, sezione di Milano), Andrea Quadri (Max-...