S. Dimopoulos et al., EXPERIMENTAL SIGNATURES OF LOW-ENERGY GAUGE-MEDIATED SUPERSYMMETRY BREAKING, Physical review letters, 76(19), 1996, pp. 3494-3497
The experimental signatures for low energy gauge-mediated supersymmetr
y breaking are distinctive since the gravitino is naturally the lighte
st supersymmetric particle. The nest lightest supersymmetric particle
(NLSP) can be a gaugino, Higgsino, or right handed slepton. For a sign
ificant 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 identi
fy 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 o
f(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 a
lso considered.