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题名: Effects of the initial hadron in B -> J/psi+X
作者: Ma, JP
刊名: PHYSICS LETTERS B
出版日期: 2000
卷号: 488, 期号:1, 页码:55-62
关键词: QUARK EFFECTIVE THEORY ;  EFFECTIVE FIELD-THEORY ;  B-DECAY ;  MATRIX-ELEMENTS ;  HEAVY QUARKS ;  QCD ANALYSIS ;  CHARMONIUM ;  MESONS ;  TEVATRON
学科分类: Physics
通讯作者: Ma, JP , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
部门归属: Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: In the framework of HQET inclusive decays of b-flavored hadrons can be handled as decays of the free b-quark approximately. We analyse the correction to this approximation fur the inclusive decays into a polarized J/psi, the correction is characterized by two matrix elements defined in HQET. For the J/psi, we use NRQCD to parameterize the formation of the c (c) over bar pair into J/psi,. Numerically the correction is remarkably large, it can be at the level of 30% and it is mainly due to the Fermi-morion of the b-quark. With this correction we give a new determination for combinations of two NRQCD matrix elements. (C) 2000 Elsevier Science B.V. All rights reserved.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000089075500008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12919
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Ma, JP. Effects of the initial hadron in B -> J/psi+X[J]. PHYSICS LETTERS B,2000,488(1):55-62.
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