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In this paper, the branching ratios and the direct CP-violating asymmetriesfor decays $\bar B^0\to f_0(980)\bar K^{*0}$ and $B^-\to f_0(980)K^{*-}$ byemploying the perturbative QCD factorization approach are studied. In thetwo-quark model supposition, $f_0(980)$ is commonly viewed as a mixture of$s\bar{s}$ and $n\bar{n}(\equiv(u\bar{u}+d\bar{d})/\sqrt{2})$, that is$|f_0(980)\ra = |s\bar s\ra\cos\theta+|n\bar n\ra\sin\theta$, where $\theta$ isthe $f_0-\sigma$ mixing angle. We find that the non-factorizable $f_0$ emissiontype diagrams can give large contributions to the final results, which areconsistent with the present experimental data and the upper limit in theallowed mixing angle ranges. We predict that the direct CP asymmetry ${\calA}^{dir}_{CP}(f_0(980)\bar K^{*0})$ is small, only a few percent, which can betested by future B factory experiments.

Study of scalar meson f 0(980) from B→f 0(980)K * decays