Contribution of penguins to the nonspectator effects in B-, (B)over-bar(0), Lambda(b) decays and the missing charm problem

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	Dai, WS; Li, XQ; Zhao, G; Dai, WS , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
	Contribution of penguins to the nonspectator effects in B-, (B)over-bar(0), Lambda(b) decays and the missing charm problem
发表期刊	COMMUNICATIONS IN THEORETICAL PHYSICS
关键词	Heavy Mesons Lifetime
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.
	2000
ISSN	0253-6102
卷号	33 期号:3 页码:431-436
学科领域	Physics
收录类别	SCI
引用统计
文献类型	期刊论文
条目标识符	http://ir.itp.ac.cn/handle/311006/12981
专题	理论物理所科研产出_SCI论文
通讯作者	Dai, WS , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
推荐引用方式 GB/T 7714	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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