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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
Source PublicationPHYSICAL REVIEW D
Keyword2-higgs-doublet Model Qcd
AbstractBased 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.
2005
ISSN0556-2821
Volume71Issue:2Pages:-
Subject AreaPhysics
Indexed BySCI
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/13922
Collection理论物理所科研产出_SCI论文
Corresponding AuthorWu, YL , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
Recommended Citation
GB/T 7714
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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