Bs−bar Bsmixing in the MSSM scenario with large flavor mixing in the LL/RR sector

We show that the recent measurements of $B_s-\bar{B}_s$ mass difference,$\Delta m_s$, by D{\O} and CDF collaborations give very strong constraints onMSSM scenario with large flavor mixing in the LL and/or RR sector of down-typesquark mass squared matrix. In particular, the region with large mixing angleand large mass difference between scalar strange and scalar bottom is ruled outby giving too large $\Delta m_s$. The allowed region is sensitive to the CPviolating phases $\delta_{L(R)}$. The $\Delta m_s$ constraint is most stringenton the scenario with both LL and RR mixing. We also predict the time-dependentCP asymmetry in $B_s \to \psi \phi$ decay and semileptonic asymmetry in $B_s\to\ell X$ decay.Comment: 15 pages, 9 figure