The strong forces operate up to range of $10^{-15}$ meters. The calculations for Muon reveal that they can be propagator for distances up to $10^{-14}$ meters. Why can't I ignore the factor of 10 and call muons the Yukawa particles for short range strong interactions?
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$\begingroup$ using the same analogy, photons could be mediators of gravitational interaction..but they aren't... ;) $\endgroup$– Bruce LeeMar 4, 2016 at 18:30
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Because muons don't carry a color charge, and hence don't participate in the strong interaction...
