B(Bs)→D(s)P, D(s)V, D(s)P, and D(s)V decays in the perturbative QCD approach

被引：90

作者：

Li, Run-Hui ^{[1
,2
]}

Lue, Cai-Dian ^{[1
]}

Zou, Hao ^{[1
]}

机构：

[1] Inst High Energy Phys, Beijing 100049, Peoples R China

[2] Shandong Univ, Dept Phys, Jinan 250100, Peoples R China

来源：

PHYSICAL REVIEW D | 2008年 / 78卷 / 01期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevD.78.014018

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Two-body charmed decays B-(s) -> D(s)P, (D(s)P)-P-*, D(s)V, and (D(s)V)-V-*, where P and V denote the light pseudoscalar meson and vector meson, respectively, are analyzed in the perturbative QCD (pQCD) approach. Using the experimental data of six B -> DP channels, we test the D meson wave function by chi(2) fit. We give the branching ratios of all the charmed B decay channels, most of which agree with experiments amazingly well. The predicted B-s decays can be confronted with the future experimental data. By straightforward calculations, our pQCD approach gives the right relative strong phase of a(2)/a(1) that agrees with experiments. We also predict the percentage of transverse polarizations in B-(s) -> (DV)-V-* decay channels.

引用

页数：13

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B(Bs)→D(s)P, D(s)V, D(s)*P, and D(s)*V decays in the perturbative QCD approach

B(Bs)→D(s)P, D(s)V, D(s)P, and D(s)V decays in the perturbative QCD approach