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Implications of charmless B decays with large direct CP violation
Wu, YL; Zhou, YF; Wu, YL , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
2005
发表期刊PHYSICAL REVIEW D
ISSN0556-2821
卷号71期号:2页码:-
摘要Based on the most recent data in charmless B decays including the very recently reported large direct CP violations, it is shown that the weak phase gamma can well be extracted without twofold ambiguity even only from two decay modes pi(+)pi(-) and pi(+)K(-), and its value is remarkably consistent with the global standard model fit at a compatible accuracy. A fit to all the pipi,piK data favor both large electroweak penguin and color-suppressed tree amplitude with large strong phases. It is demonstrated that the inclusion of SU(3) symmetry breaking effects of strong phases and the inelastic rescattering effects can well improve the consistency of the data, while both effects may not be sufficient to arrive at a small electroweak penguin amplitude in the standard model. It is of interest to notice that large or small electroweak penguin amplitude becomes a testable prediction as they lead to significantly different predictions for the direct CP violations for pi(0)pi(0), pi(0)(K) over bar (0) modes. Clearly, precise measurements on charmless B decays will provide a window for probing new physics.
部门归属Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Univ Dortmund, D-44221 Dortmund, Germany
关键词2-higgs-doublet Model Qcd
学科领域Physics
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收录类别SCI
WOS记录号WOS:000226702700004
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被引频次:40[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13922
专题理论物理所SCI论文
通讯作者Wu, YL , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
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Wu, YL,Zhou, YF,Wu, YL , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.. Implications of charmless B decays with large direct CP violation[J]. PHYSICAL REVIEW D,2005,71(2):-.
APA Wu, YL,Zhou, YF,&Wu, YL , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China..(2005).Implications of charmless B decays with large direct CP violation.PHYSICAL REVIEW D,71(2),-.
MLA Wu, YL,et al."Implications of charmless B decays with large direct CP violation".PHYSICAL REVIEW D 71.2(2005):-.
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