Bu → ψM decays and S-D wave mixing effects

Yueling Yang; Yupei Guo; Junfeng Sun; Na Wang; Qin Chang; Gongru Lu

doi:10.1088/1674-1137/42/11/113102

Chinese Physics C> 2018, Vol. 42> Issue(11) : 113102 DOI: 10.1088/1674-1137/42/11/113102

B_u → ψM decays and S-D wave mixing effects

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Institute of Particle and Nuclear Physics, Henan Normal University, Xinxiang 453007, China

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Abstract：
The B_u → ψM decays are studied with the perturbative QCD approach, where the psion ψ=ψ(2S), ψ(3770), ψ(4040) and ψ(4160), and the light meson M=π, K, ρ and K^*. The factorizable and non-factorizable contributions, and the S-D wave mixing effects on the psions, are considered in the calculation. With appropriate inputs, the branching ratios for the B_u → ψK decays are generally coincident with the experimental data within errors. However, due to the large theoretical and experimental errors, it is impossible for the moment to give a severe constraint on the S-D wave mixing angles.
- B meson ,
- weak decay ,
- psion ,
- perturbative QCD

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Yueling Yang, Yupei Guo, Junfeng Sun, Na Wang, Qin Chang and Gongru Lu. B_u → ψM decays and S-D wave mixing effects[J]. Chinese Physics C, 2018, 42(11): 113102. doi: 10.1088/1674-1137/42/11/113102

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Received: 2018-06-21

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Supported by the National Natural Science Foundation of China (11705047, U1632109, 11547014, 11475055) and Open Research Program of Large Research Infrastructures (2017), Chinese Academy of Sciences

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B_u → ψM decays and S-D wave mixing effects

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B_u → ψM decays and S-D wave mixing effects

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