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题名: Large strong phases and CP violation in the annihilation processes (B)over-bar(0)-> K+ K-, K*(+/-) K--/+, K*(+) K*(-)
作者: Su, F. ;  Wu, Y.-L. ;  Yang, Y.-D. ;  Zhuang, C.
刊名: EUROPEAN PHYSICAL JOURNAL C
出版日期: 2006
卷号: 48, 期号:2, 页码:401-411
关键词: LANDAU GAUGE QCD ;  2-HIGGS-DOUBLET MODEL ;  PERTURBATIVE QCD ;  FORM-FACTORS ;  B-MESONS ;  DECAYS ;  FACTORIZATION ;  CHARMLESS ;  RENORMALIZATION ;  REGULARIZATION
学科分类: Physics
通讯作者: Su, F , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
部门归属: Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China; Henan Normal Univ, Dept Phys, Xinxiang 453007, Henan, Peoples R China
英文摘要: The strong phases and CP violation in the rare (B) over bar (0)-> K+ K-, K*(+/-) K--/+, K*(+) K*(-) decays are investigated. As these decays proceed only via annihilation type diagrams in the standard model (SM), a dynamical gluon mass is introduced to avoid the infrared divergence in the soft endpoint regions. The Cutkosky rule is adopted to deal with a physical-region singularity of the on-mass-shell quark propagators, which leads to a big imaginary part and hence a large strong phase. As a consequence, large CP asymmetries are predicted in those decay modes due to a big interference between the annihilation amplitudes from penguin and tree operators, which may be tested in future more precise experiments.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000249009900005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5869
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Su, F.,Wu, Y.-L.,Yang, Y.-D.,et al. Large strong phases and CP violation in the annihilation processes (B)over-bar(0)-> K+ K-, K*(+/-) K--/+, K*(+) K*(-)[J]. EUROPEAN PHYSICAL JOURNAL C,2006,48(2):401-411.
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