Experimental signatures of low energy gauge-mediated supersymmetry breaking

The experimental signatures for low energy gauge-mediated supersymmetry breaking are distinctive since the gravitino is naturally the lightest supersymmetric particle. The nest lightest supersymmetric particle (NLSP) can be a gaugino, Higgsino, or right handed slepton. For a significant range of parameters, decay of the NLSP to its partner plus the gravitino can he measured as a displaced vertex or kink in a charged particle track. In the case that the NLSP is mostly gaugino, we identify the discovery modes as e(+)e(-) --> gamma gamma + is not an element of, and <(p)over bar p> --> l(+)l(-)gamma gamma + is not an element of(T). If the NLSP is a right-handed slepton, the discovery modes are e(+)e(-) --> l(+)l(-) + is not an element of and <(p)over bar p> --> l(+)l(-) + is not an element of(T). A NLSP which is mostly Higgsino is also considered.