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Non-spectator diquark effects on lifetimes of Lambda(b), Omega((*))(b) and weak decay rates of Sigma((*))(b), Xi((*))(b)
Dai, WS; Guo XH(郭新恒); Guo, XH; Li, XQ; Zhao, G
2001
发表期刊COMMUNICATIONS IN THEORETICAL PHYSICS
卷号35期号:1页码:#REF!
通讯作者Dai, WS (reprint author), CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
文章类型Article
摘要The difference of tau (B) and tau (Lambdab) indicates the role of the light flavors. We calculate the lifetimes of B-meson and hb based on the weak effective Hamiltonian while assuming the heavy baryon is constructed by a heavy b-quark and a diquark containing two light quarks. In this scenario, we use the information of the measured ratio tau (Lambdab)/tau (B) as input to predict rates of the inclusive weak decays of Sigma (()(b)*()) and Xi (()(b)*()) into non-bottom final states. We find that these rates of Sigma (()(b)*()) and Xi (()(b)*()) are much larger than those of B-mesons and Lambda (b). We also give the predictions for the lifetimes of Omega (b) and Omega (b)*. Phenomenological implication of our result is discussed.
关键词non-spectator diquark
学科领域Physics
收录类别SCI
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000167529500012
引用统计
被引频次:1[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/311005/225743
专题理论物理室
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GB/T 7714
Dai, WS,Guo XH,Guo, XH,et al. Non-spectator diquark effects on lifetimes of Lambda(b), Omega((*))(b) and weak decay rates of Sigma((*))(b), Xi((*))(b)[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2001,35(1):#REF!.
APA Dai, WS,郭新恒,Guo, XH,Li, XQ,&Zhao, G.(2001).Non-spectator diquark effects on lifetimes of Lambda(b), Omega((*))(b) and weak decay rates of Sigma((*))(b), Xi((*))(b).COMMUNICATIONS IN THEORETICAL PHYSICS,35(1),#REF!.
MLA Dai, WS,et al."Non-spectator diquark effects on lifetimes of Lambda(b), Omega((*))(b) and weak decay rates of Sigma((*))(b), Xi((*))(b)".COMMUNICATIONS IN THEORETICAL PHYSICS 35.1(2001):#REF!.
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