中文摘要：

In the framework of factorization, we study direct CP violation in the decays of B(s) → J/ψP(V) (P(V) refer to the pseudoscalar (vector) meson). The CP violation depends strongly on Cabibbo-Kobayashi- Maskawa (CKM) matrix elements and the effective parameter, Nc. The recent experimental data for the branching ratios of B(s) → J/ψP(V) are accurate enough and we can give a strong constraint on the range of Nc. We find that the CP violating asymmetry is consistent with the available experiment values for the b → d transition, and a little smaller than the b → s transition. We also predict the CP violation of other decay channels for B(s) → J/ψP(V). We expect our results can give valuable guidance for experiments.

英文摘要：

In the framework of factorization, we study direct CP violation in the decays of B（s） → J/φP（V） （P（V） refer to the pseudoscalar （vector） meson）. The CP violation depends strongly on Cabibbo-Kobayashi- Maskawa （CKM） matrix elements and the effective parameter, Nc. The recent experimental data for the branching ratios of B（s） → J/φP（V） are accurate enough and we can give a strong constraint on the range of Arc. We find that the CP violating asymmetry is consistent with the available experiment values for the b→ d transition, and a little smaller than the b→ s transition. We also predict the CP violation of other decay channels for B（s） → J/φP（V）. We expect our results can give valuable guidance for experiments.