Hadronic rare B decays via exchange or annihilation diagrams

被引：22
|
作者：
Xing, ZZ
机构：
[1] Sektion Physik, Theoretische Physik, Universität München, München, D-80333
来源：
PHYSICAL REVIEW D | 1996年 / 53卷 / 05期
关键词：
D O I：
10.1103/PhysRevD.53.2847
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The two-body mesonic B decays induced only via a single W-exchange or annihilation quark diagram, such as B-u(-) --> D-s((*)-) K((*)0) and (B) over bar(d)(0) --> D-s((*)+) K-(*-), are analyzed in the factorization approximation. We estimate the branching ratios for those transitions into two pseudoscalar mesons, and find them to be negligibly small. The significant effect of final-state rescattering is illustrated by taking B-u(-) --> D-(K) over bar(0), for example.
引用
收藏
页码：2847 / 2850
页数：4
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