B_s - \bar{B}_s mixing in the MSSM scenario with large flavor mixing in the LL/RR sector

Details B_s - \bar{B}_s mixing in the MSSM scenario with large flavor mixing in the LL/RR sector B_s - \bar{B}_s mixing in the MSSM scenario with large flavor mixing in the LL/RR sector

2006-05-16

arxiv.org/abs/hep-ph/0605182v4

JHEP 0609 (2006) 077

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 9 figures

Scientific paper

10.1088/1126-6708/2006/09/077

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 on MSSM scenario with large flavor mixing in the LL and/or RR sector of down-type squark mass squared matrix. In particular, the region with large mixing angle and large mass difference between scalar strange and scalar bottom is ruled out by giving too large $\Delta m_s$. The allowed region is sensitive to the CP violating phases $\delta_{L(R)}$. The $\Delta m_s$ constraint is most stringent on the scenario with both LL and RR mixing. We also predict the time-dependent CP asymmetry in $B_s \to \psi \phi$ decay and semileptonic asymmetry in $B_s\to \ell X$ decay.

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