Analysis of two-body charmed B meson decays in factorization-assisted topological-amplitude approach
文献类型：期刊论文
| 作者 | Zhou, SH; Wei, YB; Qin, Q; Li, Y; Yu, FS; Lu, CD |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2015 |
| 卷号 | 92期号:9页码:94016 |
| 通讯作者 | Zhou, SH (reprint author), Inst High Energy Phys, Beijing 100049, Peoples R China. |
| 英文摘要 | Within the factorization-assisted topological-amplitude approach, we study the two-body charmed B meson decays B-u,B-d,B-s -> (DM)-M-(*), with M denoting a light pseudoscalar (or vector) meson. The meson decay constants and transition form factors are factorized out from the hadronic matrix element of topological diagrams. Therefore, the effect of SU(3) symmetry breaking is retained, which is different from the conventional topological diagram approach. The number of free nonperturbative parameters to be fitted from experimental data is also much less. Only four universal nonperturbative parameters chi(C), phi(C), chi(E) and phi(E) are introduced to describe the contribution of the color-suppressed tree and W-exchanged diagrams for all the decay channels. With the fitted parameters from 31 decay modes induced by b -> c transition, we then predict the branching fractions of 120 decay modes induced by both b -> c and b -> u transitions. Our results are well consistent with the measured data or to be tested in the LHCb and Belle-II experiments in the future. Besides, the SU(3) symmetry breaking, isospin violation and CP asymmetry are also investigated. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 类目[WOS] | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 关键词[WOS] | TRANSITION FORM-FACTORS ; UB-VERTICAL-BAR ; CONE SUM-RULES ; PERTURBATIVE QCD ; SEMILEPTONIC DECAYS ; NONLEPTONIC DECAYS ; CP VIOLATION ; HEAVY MESONS ; WEAK DECAYS ; RARE DECAYS |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/20796]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Zhou, SH,Wei, YB,Qin, Q,et al. Analysis of two-body charmed B meson decays in factorization-assisted topological-amplitude approach[J]. PHYSICAL REVIEW D,2015,92(9):94016. |
| APA | Zhou, SH,Wei, YB,Qin, Q,Li, Y,Yu, FS,&Lu, CD.(2015).Analysis of two-body charmed B meson decays in factorization-assisted topological-amplitude approach.PHYSICAL REVIEW D,92(9),94016. |
| MLA | Zhou, SH,et al."Analysis of two-body charmed B meson decays in factorization-assisted topological-amplitude approach".PHYSICAL REVIEW D 92.9(2015):94016. |
入库方式： OAI收割
来源：理论物理研究所
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