Branching ratio and cp violation of b-s -> pi k decays in the perturbative qcd approach
文献类型：期刊论文
| 作者 | Yu, XQ; Li, Y; Lu, CD |
| 刊名 | Physical review d
 |
| 出版日期 | 2005-04-01 |
| 卷号 | 71期号:7页码:10 |
| ISSN号 | 0556-2821 |
| DOI | 10.1103/physrevd.71.074026 |
| 通讯作者 | Yu, xq(yuxq@mail.ihep.ac.cn) |
| 英文摘要 | In the framework of perturbative qcd approach, we calculate the branching ratio and cp asymmetry for b-s(0)((b) over bar (s))->pi(+/-)k(-/+) and b-s((b) over bar (s))->pi(0)(k) over bar (0)(k-0) decays. besides the usual factorizable diagrams, both nonfactorizable and annihilation type contributions are taken into account. we find that (a) the branching ratio of b-s(0)((b) over bar (s))->pi(+/-)k(-/+) is about (6-10)x10(-6); br(b-s((b) over bar (s))->pi(0)(k) over bar (0)(k-0)) about (1-3)x10(-7); and (b) there are large cp asymmetries in the two processes, which can be tested in the near future lhc-b experiments at cern and btev experiments at fermilab. |
| WOS关键词 | MESON DECAYS ; WAVE-FUNCTIONS ; 2-BODY DECAYS ; HEAVY-QUARK ; SUM-RULES ; FACTORIZATION ; EXTRACTION |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| WOS类目 | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 语种 | 英语 |
| 出版者 | AMERICAN PHYSICAL SOC |
| WOS记录号 | WOS:000228765400054 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2175792 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Yu, XQ |
| 作者单位 | 1.Inst High Energy Phys, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.CCAST, World Lab, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, XQ,Li, Y,Lu, CD. Branching ratio and cp violation of b-s -> pi k decays in the perturbative qcd approach[J]. Physical review d,2005,71(7):10. |
| APA | Yu, XQ,Li, Y,&Lu, CD.(2005).Branching ratio and cp violation of b-s -> pi k decays in the perturbative qcd approach.Physical review d,71(7),10. |
| MLA | Yu, XQ,et al."Branching ratio and cp violation of b-s -> pi k decays in the perturbative qcd approach".Physical review d 71.7(2005):10. |
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来源：高能物理研究所
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