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题名: Semileptonic B decays into excited charmed mesons (D-1, D-2(*)) in HQEFT
作者: Wang, WY ;  Wu, YL
刊名: INTERNATIONAL JOURNAL OF MODERN PHYSICS A
出版日期: 2001
卷号: 16, 期号:14, 页码:2505-2531
关键词: QUARK EFFECTIVE THEORY ;  QCD SUM-RULES ;  WISE FORM-FACTORS ;  HEAVY MESONS ;  CONSTANTS ;  SYMMETRY ;  HADRONS ;  MASSES
学科分类: Physics
通讯作者: Wang, WY , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
部门归属: Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: Exclusive semileptonic B decays into excited charmed mesons (D-1, D-2*) are studied up to the order of 1/m(Q) in the framework of the heavy quark effective field theory (HQEFT), which contains the contributions of both particles and antiparticles. Two wave functions eta (b)(0) and eta (c)(0), which characterize the contributions from the kinematic operator at the order of 1/m(Q), are calculated by using QCD sum rule approach in HQEFT. Zero recoil values of other two wave functions kappa (1)' and kappa (2)' are extracted from the excited charmed-meson masses. Possible effects from the transition wave functions arising from the chromomagnetic operators at the order of 1/m(Q) are analyzed. It is shown that the experimental measurements for the branching ratios of B --> D(1)lv and B --> D-2*lv can be understood in the framework of HQEFT.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000169549500004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12728
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. Semileptonic B decays into excited charmed mesons (D-1, D-2(*)) in HQEFT[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A,2001,16(14):2505-2531.
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