Extraction of alpha from the CP asymmetry in B-0/(B)over-bar(0)->pi(+)pi(-) decays
文献类型：期刊论文
| 作者 | Wu, YL ; Kramer, G; Palmer, WF; Kramer, G , UNIV HAMBURG,INST THEORET PHYS 2,LURUPER CHAUSSEE 149,D-22761 HAMBURG,GERMANY.
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| 刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS
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| 出版日期 | 1997 |
| 卷号 | 27期号:4页码:457-464 |
| 关键词 | Penguin Diagrams |
| ISSN号 | 0253-6102 |
| 英文摘要 | The influence of strong and electroweak penguin amplitudes in B/(B) over bar --> pi(+)pi(-) is investigated in connection with the determination of the unitarity triangle angle a of the CKM matrix. A relation between the observable asymmetry, the angle alpha, and the penguin amplitude is established. A model calculation of the penguin amplitude shows that the CP asymmetry in B-0 --> pi(+)pi(-) decays is only mildly influenced by the penguin amplitudes. Experimental limits on pure penguin and penguin dominated processes are consistent with the model. This information also suggests in a rather model-independent way that penguin amplitudes will not be a serious complicating factor in the determination of a from the pi(+)pi(-) time-dependent asymmetry. |
| 学科主题 | Physics |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/12465]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Kramer, G , UNIV HAMBURG,INST THEORET PHYS 2,LURUPER CHAUSSEE 149,D-22761 HAMBURG,GERMANY. |
| 推荐引用方式 GB/T 7714 | Wu, YL,Kramer, G,Palmer, WF,et al. Extraction of alpha from the CP asymmetry in B-0/(B)over-bar(0)->pi(+)pi(-) decays[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,1997,27(4):457-464. |
| APA | Wu, YL,Kramer, G,Palmer, WF,&Kramer, G , UNIV HAMBURG,INST THEORET PHYS 2,LURUPER CHAUSSEE 149,D-22761 HAMBURG,GERMANY..(1997).Extraction of alpha from the CP asymmetry in B-0/(B)over-bar(0)->pi(+)pi(-) decays.COMMUNICATIONS IN THEORETICAL PHYSICS,27(4),457-464. |
| MLA | Wu, YL,et al."Extraction of alpha from the CP asymmetry in B-0/(B)over-bar(0)->pi(+)pi(-) decays".COMMUNICATIONS IN THEORETICAL PHYSICS 27.4(1997):457-464. |
入库方式： OAI收割
来源：理论物理研究所
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