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.

引用

页数：9

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