Constraints on technicolor with scalars from b -> X-c tau(nu)over-bar and b -> X-s gamma

doi:10.1016/S0550-3213(99)00515-5

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	Constraints on technicolor with scalars from b -> X-c tau(nu)over-bar and b -> X-s gamma
	Chen HS(陈和生); Lu L(卢亮); Xiong, ZH; Chen, HS; Lu, L
	1999
发表期刊	NUCLEAR PHYSICS B
卷号	561 期号:1-2 页码:3-16
通讯作者	Xiong, ZH (reprint author), CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
文章类型	Article
摘要	The O(alpha(s)) corrections to the inclusive decay of b --> X(c)tau<(nu)over bar> and b --> X(s)gamma are calculated in technicolor with scalars model, and the latest experimental results from ALEPH and CLEO are used in determining the (sigma, h) parameter space. We find that in contrast with the enhancement of the branching ratio of b --> X(c)tau<(nu)over bar> relative to that of the standard model is very small, the b --> X(s)gamma decay width normalized by the standard model result can be reduced by as much as -50% when the ALEPH experimental value is used. In particular, the CLEO measurement which corresponds to the -33% reduction gives a more stringent constraint than B-(B) over bar mixing. The branching fraction B(b --> X(s)gamma) computed in the model in part of its parameter space with sizable deviation from the standard model prediction can be observable in the forthcoming few years with the upgraded CLEO detector and B-factories at SLAC and KEK. (C) 1999 Elsevier Science B.V. All rights reserved.
关键词	technicolor with scalers decay b -> X-c tau(nu)over-bar decay b -> X-s gamma QCD corrections
学科领域	Physics
DOI	10.1016/S0550-3213(99)00515-5
收录类别	SCI
WOS类目	Physics, Particles & Fields
WOS记录号	WOS:000084120000001
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ihep.ac.cn/handle/311005/225444
专题	院士
推荐引用方式 GB/T 7714	Chen HS,Lu L,Xiong, ZH,et al. Constraints on technicolor with scalars from b -> X-c tau(nu)over-bar and b -> X-s gamma[J]. NUCLEAR PHYSICS B,1999,561(1-2):3-16.
APA	陈和生,卢亮,Xiong, ZH,Chen, HS,&Lu, L.(1999).Constraints on technicolor with scalars from b -> X-c tau(nu)over-bar and b -> X-s gamma.NUCLEAR PHYSICS B,561(1-2),3-16.
MLA	陈和生,et al."Constraints on technicolor with scalars from b -> X-c tau(nu)over-bar and b -> X-s gamma".NUCLEAR PHYSICS B 561.1-2(1999):3-16.

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