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Effect of Supersymmetric Right-handed Flavor Mixing on $B_s$ decays

Motivated by the possibility of ${\cal S}_{ϕK_S}<0$, we study the implications for $B_s$ meson system. In a specific model that realizes ${\cal S}_{ϕK_S}<0$ with large $s$-$b$ mixing, right-handed dynamics and a new CP phase, we present predictions for CP asymmetries in $B_s\to J/ψϕ$, $K^+K^-$ and $ϕγ$ decays. Even if the measurement of time-dependent CP asymmetry becomes hampered by very fast $B_s$ oscillation, a finite difference between the decay rates of $B_s$ mass eigenstates may enable the studies of CP violations with untagged data samples. Thus, studies of CP violation in the $B_s$ system would remain useful for the extraction of new physics information.