Signatures of Double Charged Higgs in $SU(3)_L\otimes U(1)_N$ model
  The scalar sector of the simplest version of the 3-3-1 electroweak models is constructed with three Higgs triplets only. We show that a relation involving two of the constants of the Higgs potential, two vacuum expectation values of the neutral scalars and the mass of the doubly charged Higgs boson leads to important information concerning the signals of this scalar particle. 
J. E. Cieza Montalvo, Nelson V. Cortez Jr., Mauro D. Tonasse