Study the $$B^{0}_{(s)}$$ decays into $$\phi $$ and a scalar or vector meson

In the present work, we investigate decays of $B^{0}_{s} \rightarrow \phi\pi^{+}\pi^{-}$ and $B^{0} with final state interactions based on chiral unitary approach. $\pi^+\pi^-$ its coupled channels, study effects $\eta\eta$ channel in two-body for reproduction $f_{0}(980)$ state. Our results invariant mass distributions decay describe experimental data up to 1 GeV well, resonance contributions from $\rho$. For predicted decay, found that $f_{0}(500)$ are significant except ones With some branching ratios as input determine production vertex factors, make predictions other including vector mesons, $B^0_{(s)}$ decays, where them consistent within uncertainties.