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Contribution of penguins to the nonspectator effects in B-, (B)over-bar(0), Lambda(b) decays and the missing charm problem
Dai, WS; Li, XQ; Zhao, G; Dai, WS , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
2000
发表期刊COMMUNICATIONS IN THEORETICAL PHYSICS
ISSN0253-6102
卷号33期号:3页码:431-436
摘要Taking the nonspectator contributions from the "tree" level four-quark operators and the penguin-induced operators into account we recalculate the charm number n(c) in B decays. We find that for B- and Lambda(b), penguin contribution can be neglected, while for (B) over bar(d)(0), it is dominant if the nonfactorization factor (t(alpha)t(alpha)) is not sizably large. Some new physics may be needed to meet the present data.
部门归属Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Heavy Mesons Lifetime
学科领域Physics
收录类别SCI
WOS记录号WOS:000087224500018
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12981
专题理论物理所SCI论文
通讯作者Dai, WS , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
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Dai, WS,Li, XQ,Zhao, G,et al. Contribution of penguins to the nonspectator effects in B-, (B)over-bar(0), Lambda(b) decays and the missing charm problem[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2000,33(3):431-436.
APA Dai, WS,Li, XQ,Zhao, G,&Dai, WS , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China..(2000).Contribution of penguins to the nonspectator effects in B-, (B)over-bar(0), Lambda(b) decays and the missing charm problem.COMMUNICATIONS IN THEORETICAL PHYSICS,33(3),431-436.
MLA Dai, WS,et al."Contribution of penguins to the nonspectator effects in B-, (B)over-bar(0), Lambda(b) decays and the missing charm problem".COMMUNICATIONS IN THEORETICAL PHYSICS 33.3(2000):431-436.
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