Vector-Vector $B_d$ and $B_s$ decays at CDF

Using 1 fb$^{-1}$ of Run II CDF data, we study $B_{(d,s)} \rightarrow$ Vector Vector 
decays to measure polarization amplitudes in $b \rightarrow (c\bar{c})s$ and 
$b \rightarrow (s\bar{s})s$ modes and perform a time dependent analysis.