Supersymmetry reach of Fermilab Tevatron upgrades: A comparative study.

We use ISAJET to perform a detailed comparison of the supersymmetry reach of the current Fermilab Tevatron (100 pb{sup {minus}1}) with that of the Main Injector (2 fb{sup {minus}1}) and the proposed TeV33 upgrade designed to yield an integrated luminosity of 25 fb{sup {minus}1}. Our analysis is performed within the framework of the minimal supergravity model with gauge coupling unification and radiative electroweak symmetry breaking. For each of these three luminosity options, we delineate the regions of parameter space where jets plus missing energy plus 0, 1, 2 (opposite-sign and same-sign dileptons), and 3 isolated lepton signals from the cascade decays of sparticles should be visible above standard model backgrounds. We compare these with the parameter regions where signals in the clean isolated dilepton and trilepton channels (from chargino or neutralino and slepton production) should be observable. {copyright} {ital 1996 The American Physical Society.}