  This paper discusses supersymmetry discovery potential of the upgraded D\O
experiment at the Tevatron $p\bar{p}$ collider. Six final states with large
transverse energy (momentum) leptons or photons (with or without large
transverse momentum imbalances) are studied. These final states are expected to
have small backgrounds and are thereby ideal for new physics searches.
Implications of the analyses of these final states on Gauge Mediated
Supersymmetry Breaking models are discussed for integrated luminosities of 2
and 30 1/fb. This study demonstrates that a large class of supersymmetry models
can be probed at the upgraded Tevatron.
