More precise determination of V-cb & V-ub and direct CP violation in charmless B decays
文献类型：会议论文
| 作者 | Wang, WY; Wu, YL ; Zhou, YF
|
| 出版日期 | 2004 |
| 会议日期 | OCT 06-11, 2003 |
| 会议地点 | Korea Inst Adv Study, Seoul, SOUTH KOREA |
| 关键词 | EFFECTIVE-FIELD-THEORY QUARK EFFECTIVE THEORY HEAVY-QUARK MESON DECAYS VERTICAL-BAR QCD FACTORIZATION STRONG PHASES FORM-FACTORS PI DECAYS HQEFT |
| 卷号 | 45 |
| 页码 | S459-S466 |
| 英文摘要 | More precise extractions on the two important CKM matrix elements \V-cb\ and \V-ub\ are presented up to 1/m(Q)(2) corrections, based on the complete heavy-quark effective field theory (HQEFT) of QCD. The HQEFT as a large component QCD provides us with a complete theoretical framework for correctly and systematically evaluating the subleading and higher-order contributions in 1/m(Q) expansion of heavy quarks. A global analysis on charmless B decays is made, based on the isospin and SU(3) flavor symmetry. An isospin relation is found to be very useful for studying SU(3) symmetry-breaking effects of strong phases and exploring new types of electroweak penguin effects. The direct CP violation in charmless B decays is predicted, and its precise measurement is helpful either for testing SU(3) symmetry breaking effects of strong phases or for probing news physics beyond standard model. |
| 源文献作者 | Korea Inst Adv Study |
| 会议录 | JOURNAL OF THE KOREAN PHYSICAL SOCIETY
 |
| 会议录出版者 | KOREAN PHYSICAL SOC |
| 会议录出版地 | SEOUL |
| 语种 | 英语 |
| ISSN号 | 0374-4884 |
| WOS研究方向 | Physics |
| 源URL | [http://ir.itp.ac.cn/handle/311006/23717]  |
| 专题 | SCI会议论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China 2.Univ Munich, Sekt Phys, D-80333 Munich, Germany |
| 推荐引用方式 GB/T 7714 | Wang, WY,Wu, YL,Zhou, YF. More precise determination of V-cb & V-ub and direct CP violation in charmless B decays[C]. 见:. Korea Inst Adv Study, Seoul, SOUTH KOREA. OCT 06-11, 2003. |
入库方式： OAI收割
来源：理论物理研究所
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