Direct CP violation in B(s)→J/ψP(V)

  • 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 nd 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.
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LIU Hao, GUO Xin-Heng and Direct CP violation in B(s)→J/ψP(V)[J]. Chinese Physics C, 2012, 36(7): 585-591. doi: 10.1088/1674-1137/36/7/003
LIU Hao, GUO Xin-Heng and Direct CP violation in B(s)→J/ψP(V)[J]. Chinese Physics C, 2012, 36(7): 585-591.  doi: 10.1088/1674-1137/36/7/003 shu
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Received: 2011-12-02
Revised: 1900-01-01
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Direct CP violation in B(s)→J/ψP(V)

    Corresponding author: GUO Xin-Heng,

Abstract: 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 nd 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.

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