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arXiv · hep-ph/9206238

Comment On ``Grand Unification and Supersymmetric Threshold"

Alon E. Faraggi·Benjamin Grinstein·Sydney Meshkov
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Abstract

Barbieri and Hall have argued that threshold effects at the scale of grand-unification wipe out predictions on the SUSY scale, M_S. Using triviality arguments we give upper bounds on ultraheavy particles, while proton stability gives lower bounds on the mass of the higgs color-triplet. We find no useful lower bound on the $Σ$ supermultiplet, but if the strong coupling constant is as large as recent experiments suggest, unification in the minimal SUSY SU(5) model requires that the $Sigma$ masses be $\sim 10^{-7}M_V$ and that the color octet and weak triplet be split in mass by a factor of $\sim$100.

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Alon E. Faraggi, Benjamin Grinstein, Sydney Meshkov. 1992-08-31. Comment On ``Grand Unification and Supersymmetric Threshold". https://doi.org/10.1103/physrevd.47.5018

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