Study of the quasi-two-body decays B-s(0) -> psi(3770) (psi(3686))pi( )pi(-) with perturbative QCD approach
Study of the quasi-two-body decays B-s(0) -> psi(3770) (psi(3686))pi( )pi(-) with perturbative QCD approach
复制标题
用微扰 QCD 方法研究准二体衰变 B-s(0) -> psi(3770) (psi(3686))pi( )pi(-)
DOI：
10.1140/epjc/s10052-019-6877-2
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发表时间：
2019
影响因子：
4.4
通讯作者：
Yu Xian Qiao
中科院分区：
文献类型：
--
作者：
Liang Ze Rui;Duan Feng Bo;Yu Xian Qiao
In this note, we study the contributions from theS-wave resonances,and, to thedecay by introducing theS-wavedistribution amplitudes within the framework of perturbative QCD approach. Both the resonant and the non-resonant contributions are contained in the scalar form factor in theS-wave distribution amplitude. Since the vector charmonium mesonis aS–Dwave mixed state, we calculate the branching ratios ofS-wave andD-wave, respectively, and the results indicate thatis the main contribution of the considered decay, and the branching ratio of themode is in good agreement with the experimental data. We also take theS–Dmixed effect into thedecay. Our calculations show that the branching ratio ofcan be at the order of, which can be tested by the running LHCb experiments.
