A more precise extraction of |V-cb| in HQEFT of QCD

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	A more precise extraction of \|V-cb\| in HQEFT of QCD
	Wang, WY; Wu, YL; Yan, YA; Zhong, M; Zuo, YB; Wang, WY , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
刊名	MODERN PHYSICS LETTERS A
	2004
卷号	19 期号:18 页码:1379-1390
关键词	Effective-field-theory Heavy-quark Form-factors Inclusive Decays B->c Transitions Sum-rules Hadrons Mesons
ISSN号	0217-7323
英文摘要	The more precise extraction for the CKM matrix element \V-cb\ in the heavy quark effective field theory (HQEFT) of QCD is studied from both exclusive and inclusive semileptonic B decays. The values of relevant nonperturbative parameters up to order 1/m(Q)(2) are estimated consistently in HQEFT of QCD. Using the most recent experimental data for B decay rates, \V-cb\ is updated to be \V-cb\ = 0.0395 +/- 0.0011(expt +/-) 0.0019(theor) from B --> D*lv decay and \V-cb\ = 0.0434 +/- 0.0041(expt) +/- 0.0020(theor) from B --> Dlv decay as well as \V-cb\ = 0.0394 +/- 0.0010(expt) +/- 0.0014(theor) from inclusive B --> X(c)lv decay.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000222103500005
公开日期	2012-08-30
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/14061]
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	Wang, WY , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Wang, WY,Wu, YL,Yan, YA,et al. A more precise extraction of \|V-cb\| in HQEFT of QCD[J]. MODERN PHYSICS LETTERS A,2004,19(18):1379-1390.
APA	Wang, WY,Wu, YL,Yan, YA,Zhong, M,Zuo, YB,&Wang, WY , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(2004).A more precise extraction of \|V-cb\| in HQEFT of QCD.MODERN PHYSICS LETTERS A,19(18),1379-1390.
MLA	Wang, WY,et al."A more precise extraction of \|V-cb\| in HQEFT of QCD".MODERN PHYSICS LETTERS A 19.18(2004):1379-1390.