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题名: B-meson wave function with contributions from three-particle Fock states
作者: Huang, T ;  Qiao, CF ;  Wu, XG
刊名: PHYSICAL REVIEW D
出版日期: 2006
卷号: 73, 期号:7, 页码:-
关键词: HEAVY-QUARK LIMIT ;  TRANSVERSE-MOMENTUM DISTRIBUTION ;  EFFECTIVE FIELD-THEORY ;  FORM-FACTORS ;  SUM-RULES ;  QCD ;  ELECTROPRODUCTION ;  APPROXIMATION ;  SYMMETRY ;  LATTICE
学科分类: Physics
通讯作者: Huang, T , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China
部门归属: CCAST, World Lab, Beijing 100080, Peoples R China; Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China; Chinese Acad Sci, Grad Sch, Dept Phys, Beijing 100049, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: The B-meson light-cone wave functions, Psi(+/-)(omega,z(2)), are investigated up to the next-to-leading order in Fock state expansion in the heavy-quark limit. In order to know the transverse momentum dependence of the B-meson wave functions with 3-particle Fock states' contributions, we make use of the relations between 2- and 3- particle wave functions derived from the QCD equations of motion and the heavy-quark symmetry, especially two constraints derived from the gauge field equation of motion are employed. Our results show that the use of gluon equation of motion can give a constraint on the transverse momentum dependence chi(omega,k(perpendicular to)) of the B-meson wave functions, whose distribution tends to be a hyperbolalike curve under the condition 0 < c(1)< 1, which is quite different from the Wandzura-Wilczek-(WW)-type wave functions, whose transverse momentum dependence chi(WW)(omega,k(perpendicular to)) is merely a delta function. Based on the derived results, we propose a simple model for the B-meson wave functions with 3-particle Fock states' contributions.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000237158500027
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/6009
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:
Huang, T,Qiao, CF,Wu, XG. B-meson wave function with contributions from three-particle Fock states[J]. PHYSICAL REVIEW D,2006,73(7):-.
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