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Present experiments in pursuit of the mass difference in the Bs-Bs(bar)system have put a lower bound on this quantity of $\Delta M_s > 14.9 ps^{-1}$(at 95% C.L.). The same experiments also yield a local minimum in thelog-likelihood function around $\Delta M_s = 17.7 ps^{-1}$, which is$2.5\sigma$ away from being zero. Motivated by these observations, weinvestigate the consequences of a possible measurement of $\Delta M_s = 17.7\pm 1.4 ps^{-1}$, in the context of both the standard model and supersymmetricmodels with minimal flavor violation. We perform a fit of the quark mixingparameters in these theories and estimate the expected ranges of the CPasymmetries in B decays, characterized by $\alpha$, $\beta$ and $\gamma$, theinterior angles of the CKM-unitarity triangle. Based on this study, we arguethat, if indeed $\Delta M_s$ turns out to be in its currently-favored range,this would disfavor a large class of supersymmetric models. Indeed, of all themodels examined here, the best fit to the data occurs for the standard model.Comment: 14 pages, LaTeX, 8 figures, corrected some typos. Accepted for  publication in Eur. Phys. J.

What if the mass difference $\Delta M_s$ is around 18 inverse picoseconds?