Non-spectator diquark effects on lifetimes of Lambda(b), Omega((*))(b) and weak decay rates of Sigma((*))(b), Xi((*))(b)

	*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
刊名	COMMUNICATIONS IN THEORETICAL PHYSICS
	2001
卷号	35 期号:1 页码:#REF!
关键词	non-spectator diquark
通讯作者	Dai, WS (reprint author), CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
英文摘要	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.
学科主题	Physics
类目[WOS]	Physics, Multidisciplinary
收录类别	SCI
WOS记录号	WOS:000167529500012
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/225743]
专题	高能物理研究所_理论物理室
推荐引用方式 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!.