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Simple SUSY GUT models based on the gauge group SO(10) require t-b-\tauYukawa coupling unification, in addition to gauge coupling and matterunification. The Yukawa coupling unification places strong constraints on theexpected superparticle mass spectrum, with scalar masses \sim 10 TeV whilegluino masses are much lighter: in the 300--500 GeV range. The very heavysquarks suppress negative interference in the q\bar{q}\to\tg\tg cross section,leading to a large enhancement in production rates. The gluinos decay almostalways via three-body modes into a pair of b-quarks, so we expect at least fourb-jets per signal event. We investigate the capability of Fermilab Tevatroncollider experiments to detect gluino pair production in Yukawa-unified SUSY.By requiring events with large missing E_T and \ge 2 or 3 tagged b-jets, wefind a 5\sigma reach in excess of m_{\tg}\sim 400 GeV for 5 fb^{-1} of data.This range in m_{\tg} is much further than the conventional Tevatron SUSYreach, and should cut a significant swath through the most favored region ofparameter space for Yukawa-unified SUSY models.

Beyond the Higgs boson at the Tevatron: detecting gluinos from Yukawa-unified SUSY