Signals for the minimal gauge-mediated supersymmetry-breaking model at the Fermilab Tevatron collider

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Abstract

We investigate the experimental implications of the minimal gauge-mediated low energy supersymmetry-breaking model for Fermilab Tevatron collider experiments. We map out the regions of parameter space of this model that have already been excluded by collider searches and by limits on $b\ensuremath{\rightarrow}s\ensuremath{\gamma}$. We use ISAJET to compute the cross sections for a variety of topological signatures which include photons in assocation with multiple leptons, jets, and missing transverse energy. The reach in the parameter $\ensuremath{\Lambda}$, which fixes the scale of sparticle masses, is estimated to be $\ensuremath{\sim}60$, 100, and 135 TeV for Tevatron integrated luminosities of 0.1, 2, and 25 fb${}^{\ensuremath{-}1}$, respectively. The largest signals occur in photon(s) plus lepton(s) plus multijet channels; jet-free channels containing just photons plus leptons occur at much smaller rates, at least within this minimal framework.

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