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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
刊名NUCLEAR PHYSICS B
1999
卷号561期号:1-2页码:3-16
关键词technicolor with scalers decay b -> X-c tau(nu)over-bar decay b -> X-s gamma QCD corrections
学科分类Physics
DOI10.1016/S0550-3213(99)00515-5
通讯作者Xiong, ZH (reprint author), CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
文章类型Article
英文摘要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.
类目[WOS]Physics, Particles & Fields
收录类别SCI
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_期刊论文
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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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