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We make explicit the statement that Minimal Supersymmetric SU(5) has beenexcluded by the Super-Kamiokande search for the process $p \to K^{+}\overline{\nu}$. This exclusion is made by first placing limits on the coloredHiggs triplet mass, by forcing the gauge couplings to unify. We also show thattaking the superpartners of the first two generations to be very heavy in orderto avoid flavor changing neutral currents, the so-called ``decoupling'' idea,is insufficient to resurrect the Minimal SUSY SU(5). We comment on variousmechanisms to further suppress proton decay in SUSY SU(5). Finally, we addressthe contributions to proton decay from gauge boson exchange in the Minimal SUSYSU(5) and flipped SU(5) models.Comment: 8 pages, 4 figure

Not even decoupling can save the minimal supersymmetric SU(5) model