Topologies of the (M+1)SSM with a singlino LSP at LEP2

We study the possible signals of the (M+1)SSM with a singlino LSP at LEP2. First we identify regions of the parameter space which are ruled out by neg ative results of sparticle searches in the context of the MSSM. In the rema ining kinematically accessible regions we present total event rates for top ologies which require further studies, i.e. estimations of the correspondin g efficiencies: various four charged fermion final states with missing ener gy, possibly with displaced vertices due to a long life time of the NLSP, t he second lightest neutralino. Searches for these unconventional signatures are essential in order to cover the entire kinematically accessible parame ter space of the (M+1)SSM with a singlino LSP at LEP2.