BuψM decays and S-D wave mixing effects

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

  • 1. Institute of Particle and Nuclear Physics, Henan Normal University, Xinxiang 453007, China
Fund Project:  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

Abstract: The BuψM 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 BuψK 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.

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