Supersymmetric Particles at the {CERN} $p \bar{p}$ Collider

We explore the experimental missing p T signatures for squark q and gluino g production at the CERN p p collider. We present topological cross sections for g g ( q q ) production followed by g → q q γ ( q → q γ ) decay, applying criteria for the jet trigger and specification modelled on those used by UA1. Gluinos or squarks with masses less than about 40 GeV give events with missing p T , predominantly one-jet events, fewer two- and multi-jet events. We use the observed monojet events as an upper limit implying m g (m q ) ⪆ 40 GeV . The observed one- and multi-jet events The small invariant could be due to the production of g g or q q with m g or m q = O(40) GeV . masses of the observed monojets and their hard missing p T spectrum favour a q interpretation. Predictions are presented for m g or m q up to 60 GeV , which could be detectable in forthcoming data from the CERN p p collider