Several supersymmetric models with extended gauge structures, motivated by either grand unification or by neutrino mass generation, predict light doubly-charged Higgsinos. In this work we study the signals of doubly-charged Higgsinos at the Tevatron in both pair-- and single--production modes, and show that it is possible, especially from the events containing same-sign same-flavor isolated leptons, to disentangle the effects of doubly-charged Higgsinos in the Tevatron data.
@article{arxiv.0903.3955,
title = {Doubly Charged Higgsinos at Tevatron},
author = {Durmuş A. Demir and Mariana Frank and Dilip K. Ghosh and Katri Huitu and Santosh K. Rai and Ismail Turan},
journal= {arXiv preprint arXiv:0903.3955},
year = {2009}
}