  There are many theoretical reasons why heavy quasi-stable charged particles
might exist. Pair production of such particles at the Tevatron can produce
highly ionizing tracks (HITs) or fake muons. In gauge-mediated supersymmetry
breaking, sparticle production can lead to events with a pair of quasi-stable
sleptons, a significant fraction of which will have the same electric charge.
Depending on the production mechanism and the decay chain, they may also be
accompanied by additional energetic leptons. We study the relative importance
of the resulting signals for the Tevatron Run II. The relative fraction of
same-sign tracks to other background-free signals is an important diagnostic
tool in gauge-mediated supersymmetry breaking that may provide information
about mass splittings, tan(beta) and the number of messengers communicating
supersymmetry breaking.
