Limits on the masses of supersymmetric particles from 1.8 TeV bar p - p collisions

Preliminary analysis of bar p - p collision events at a c.m. energy of 1.8 TeV with large missing transverse energy yields limits on the production cross-section for one-jet events with observed jet transverse energy ET > 40 GeV. For jets in the pseudo-rapidity range |η| <1.0, the production cross- section is <0.14 nb. In a minimal supersymmetry model, the mass of the squark must be larger than 84±10 GeV, independent of the mass of the gluino, at the 90% confidence level. The mass of the gluino must be larger than 82±10 GeV, independent of the mass of the squark. The uncertainties are the combined effects of several sources of systematic error in this preliminary result