BOUND-STATES OF 2 GLUINOS AT THE FERMILAB TEVATRON AND CERN LHC

We calculate the production cross sections for the vector and pseudosc alar bound states of two gluinos. It is shown that existing and future colliders imply a realistic chance of observing gluinonium as a narro w peak in the two-jet invariant mass spectrum. With an integrated lumi nosity of 0.2 fb(-1) at the Fermilab Tevatron, and the high efficiency for tagging heavy quark jets at CDF, one should be able to detect vec tor gluinonium for gluino masses up to about 170 GeV, or up to about 2 60 GeV for an upgraded Tevatron with a center of mass energy of 2 TeV and an integrated luminosity of 1 fb(-1). The significantly higher ene rgy and luminosity of the CERN LHC should allow pseudoscalar gluinoniu m to be detected for gluino masses up to about 1500 GeV for an assumed luminosity of 200 fb(-1). These results are insensitive To the detail s of supersymmetry models, provided that R parity is observed and the gluinos are lighter than the squarks. In addition, gluinonium detectio n implies a relatively accurate measure of the gluino mass, which is d ifficult to determine by other means.