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Huang, MQ; Jin, HY; Korner, JG; Liu, C; Huang, MQ , Natl Univ Def Technol, Dept Phys, Changsha 410073, Peoples R China.
Note on the slope parameter of the baryonic Lambda(b) -> Lambda(c) Isgur-Wise function
Source PublicationPHYSICS LETTERS B
KeywordQuark Effective Theory Qcd Sum-rules Weak Form-factors Heavy-quark Semileptonic Decay Resonance Physics Transitions Currents Limit
AbstractUsing the framework of the Heavy Quark Effective Theory we have re-analyzed the Isgur-Wise function describing semi-leptonic Lambda(b) -> Lambda(c) decays in the QCD sum rule approach. The slope parameter of the Isgur-Wise function is found to be rho(2) = 1.35 +/- 0.13, which is consistent with an experimental measurement and a lattice calculation. To O(1/m(b,) 1/m(c)) of the heavy quark expansion the integrated Ab decay width is used to extract the CKM matrix element V-cb for which we obtain a value of /V-cb/ = 0.041 +/- 0.004 +/- 0.001 in excellent agreement with the value of /V-cb/ determined from semileptonic B -> D* decays. (c) 2005 Elsevier B.V. All rights reserved.
2005
ISSN0370-2693
Volume629Issue:1Pages:27-32
Subject AreaPhysics
Indexed BySCI
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/13718
Collection理论物理所科研产出_SCI论文
Corresponding AuthorHuang, MQ , Natl Univ Def Technol, Dept Phys, Changsha 410073, Peoples R China.
Recommended Citation
GB/T 7714
Huang, MQ,Jin, HY,Korner, JG,et al. Note on the slope parameter of the baryonic Lambda(b) -> Lambda(c) Isgur-Wise function[J]. PHYSICS LETTERS B,2005,629(1):27-32.
APA Huang, MQ,Jin, HY,Korner, JG,Liu, C,&Huang, MQ , Natl Univ Def Technol, Dept Phys, Changsha 410073, Peoples R China..(2005).Note on the slope parameter of the baryonic Lambda(b) -> Lambda(c) Isgur-Wise function.PHYSICS LETTERS B,629(1),27-32.
MLA Huang, MQ,et al."Note on the slope parameter of the baryonic Lambda(b) -> Lambda(c) Isgur-Wise function".PHYSICS LETTERS B 629.1(2005):27-32.
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