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题名: Heavy to light meson exclusive semileptonic decays in effective field theory of heavy quarks
作者: Wang, WY ;  Wu, YL ;  Zhong, M
刊名: PHYSICAL REVIEW D
出版日期: 2003
卷号: 67, 期号:1, 页码:-
关键词: QCD SUM-RULES ;  FORM-FACTOR RATIOS ;  B-MESON ;  PARTICLE PHYSICS ;  WAVE-FUNCTIONS ;  VERTICAL-BAR ;  LARGE RECOIL ;  LATTICE ;  TRANSITIONS ;  FACTORIZATION
学科分类: Physics
通讯作者: Wang, WY , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China.
部门归属: Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: We present a general study of exclusive semileptonic decays of heavy (B,D,B-s) to light (pi,rho,K,K-*) mesons in the framework of the effective field theory of heavy quarks. The transition matrix elements of these decays can be systematically characterized by a set of wave functions which are independent of the heavy quark mass except for the implicit scale dependence. Form factors for all these decays are calculated consistently within the effective theory framework using the light cone sum rule method at the leading order of the 1/m(Q) expansion. The branching ratios of these decays are evaluated, and the heavy and light flavor symmetry breaking effects are investigated. We also give a comparison of our results and the predictions from other approaches, among which are the relations proposed recently in the framework of large energy effective theory.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000180918100045
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13381
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Wang, WY,Wu, YL,Zhong, M. Heavy to light meson exclusive semileptonic decays in effective field theory of heavy quarks[J]. PHYSICAL REVIEW D,2003,67(1):-.
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