Study of the γ (1S) → BcDs* decay with pQCD approach

被引：4
|
作者：
Sun, Junfeng [1 ]
Yang, Yueling [1 ]
Li, Qingxia [1 ]
Lu, Gongru [1 ]
Huang, Jinshu [2 ]
Chang, Qin [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：
INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2016年 / 31卷 / 12期
基金：
中国国家自然科学基金;
关键词：
gamma(1S); weak decay; perturbative QCD; branching ratio; QCD FACTORIZATION; HEAVY; MESON;
D O I：
10.1142/S0217751X16500615
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The gamma(1S)-> BcDs* weak decay is studied with the perturbative QCD approach firstly. It is found that (1) main contributions to branching ratio come from the longitudinal and parallel helicity amplitudes, (2) branching ratio, longitudinal and parallel polarization fractions are sensitive to the wave functions of the gamma(1S) meson, (3) branching ratio for the gamma(1S) -> BcDs* decay can reach up to 10(-9), which might be promisingly measured by the future experiments.
引用
收藏
页数：23
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