J/ψ → Ds,dπ, Ds,dK decays with perturbative QCD approach

被引：4
作者：
Sun, Junfeng [1 ]
Yang, Yueling [1 ]
Gao, Jie [1 ]
Chang, Qin [1 ]
Huang, Jinshu [2 ]
Lu, Gongru [1 ]
机构：
[1] Henan Normal Univ, Inst Particle & Nucl Phys, Xinxiang 453007, Peoples R China
[2] Nanyang Normal Univ, Coll Phys & Elect Engn, Nanyang 473061, Peoples R China
来源：
PHYSICAL REVIEW D | 2016年 / 94卷 / 03期
基金：
中国国家自然科学基金;
关键词：
HEAVY MESON DECAYS; WEAK DECAYS; UNITARY SYMMETRY; CP-VIOLATION; FACTORIZATION; QUARKONIUM; MODEL; ANNIHILATION; PSI;
D O I：
10.1103/PhysRevD.94.034029
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Besides the conventional strong and electromagnetic decay modes, the J/psi particle can also decay via the weak interaction in the standard model. In this paper, nonleptonic J/psi -> D-s,D-d pi, Ds,dK weak decays, corresponding to the externally emitted virtual W boson process, are investigated with the perturbative QCD approach. It is found that the branching ratio for the Cabibbo-favored J/psi -> D-s pi decay can reach up to O(10(-10)), which might be potentially measurable at the future high-luminosity experiments.
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页数：9
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