False vacuum in the supersymmetric mass varying neutrinos model

We present detailed analyses of the vacuum structure of the scalar potential in a supersymmetric mass varying neutrinos model. The observed dark energy density is identified with false vacuum energy and the dark energy scale of order (10-3eV)4 is understood by the gravitationally suppressed supersymmetry breaking scale, F(TeV)2/MPl, in the model. The vacuum expectation values of sneutrinos should be tiny in order that the model works. Some decay processes of superparticles into an acceleron and sterile neutrino are also discussed in the model.