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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	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.
刊名	COMMUNICATIONS IN THEORETICAL PHYSICS
	2000
卷号	33 期号:3 页码:431-436
关键词	Heavy Mesons Lifetime
ISSN号	0253-6102
英文摘要	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.
学科主题	Physics
WOS记录号	WOS:000087224500018
公开日期	2012-08-29
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/12981]
专题	理论物理研究所_理论物理所1978-2010年知识产出
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.