The signature at the Tevatron for the light doubly charged Higgsino of   the supersymmetric left-right model
  We analyze the signal at the Tevatron for the doubly charged Higgs superfield of supersymmetric left-right models with gauge mediated supersymmetry breaking. Due to the presence of a new coupling, the lighter stau is usually less massive than the lightest neutralino and is frequently the NLSP. The fermionic part of the doubly charged Higgs field decays dominantly into two tau leptons plus missing energy (gravitino). We find that the inclusive two tau jets and three tau jets plus missing energy signatures could be observable at Run II of the Tevatron. We also find that the distribution in angle between the two highest E_T tau jets when they come from same sign tau leptons can be used to distinguish this model from the others. 
B. Dutta, R. N. Mohapatra and D. J. Muller