Limits on the Masses of Supersymmetric Particles from the UA1 Experiment at the CERN Proton-Antiproton Collider

An analysis is presented of a data sample with large missing transverse energy, recorded at the CERN proton-antiproton collider. The data were collected at the UA1 experiment and correspond to,an integrated luminosity of 715 nb$^{-1}$. A description of the Monte-Carlo calculations is given, for processes contributing to this large E$_T^{miss}$ data sample. The very good agreement between the data and the simulated Standard Model physics processes is then used to set mass limits on the existence of the supersymmetric partners of the intermediate vector bosons, quarks and gluons - with the assumption of a massless lightest supersymmetric particle (taken to be a photino). Variation of the mass limits with a massive photino is also investigated.