Abstract
A gluino in the mass range 12--16 GeV combined with a light (2--5.5 GeV) bottom squark, as has been proposed recently to explain an excess of b quark hadroproduction, would affect the momentum-scale dependence (``running'') of the strong coupling constant ${\ensuremath{\alpha}}_{s}$ in such a way as to raise its value at ${M}_{Z}$ by about $0.014\ifmmode\pm\else\textpm\fi{}0.001.$ If one combines sources of uncertainty at low ${(m}_{b})$ and high ${(M}_{Z})$ mass scales, one cannot exclude such a possibility. Prospects for improvement in this situation, which include better lattice QCD simulations and better measurements at ${M}_{Z},$ are discussed.
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