Neutralinos and charginos in supersymmetric economical 3-3-1 model
  Fermion superpartners - neutralinos and charginos in the supersymmetric economical 3-3-1 model are studied. By imposition R parity, their masses and eigenstates are derived.   Assuming that Bino-like is dark matter, its mass density is calculated. The cosmological dark matter density gives a bound on mass of LSP neutralino in the range of 20 - 100 GeV, while the bound on mass of the lightest slepton is in the range of 60 - 130 GeV 
D. T. Huong and H. N. Long