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题名: Predictions for e(+)e(-) -> J/psi eta(c) with light-cone wave functions
作者: Ma, JP ;  Si, ZG
刊名: PHYSICAL REVIEW D
出版日期: 2004
卷号: 70, 期号:7, 页码:-
关键词: TWIST DISTRIBUTION AMPLITUDES ;  EXCLUSIVE PROCESSES ;  QUANTUM CHROMODYNAMICS ;  VECTOR-MESONS ;  ASYMPTOTIC-BEHAVIOR ;  QCD FACTORIZATION ;  FORM-FACTORS ;  B-MESON ;  ANNIHILATION ;  DECAYS
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; Shandong Univ, Dept Phys, Jinan 250100, Peoples R China
英文摘要: Predictions for e(+)e(-)-->J/psieta(c) from previous studies are made by taking charmonia as a nonrelativistic bound state and by using nonrelativistic QCD (NRQCD) approach. The predicted cross section is smaller by an order of magnitude than the experimentally observed cross section. We study the process by taking charm quark as a light quark and use light-cone wave functions to parameterize nonperturbative effects related to charmonia. The total cross section of e(+)e(-)-->J/psieta(c) can be predicted, if these wave functions are known. Motivated by studies of light-cone wave functions of light hadrons, we make a reasonable assumption of the forms of light-cone wave functions. With these light-cone wave functions we can obtain the cross section which is closer to the experimentally observed than that from the NRQCD approach. We also discuss in detail the difference between two approaches.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000224799600032
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13994
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:
Ma, JP,Si, ZG. Predictions for e(+)e(-) -> J/psi eta(c) with light-cone wave functions[J]. PHYSICAL REVIEW D,2004,70(7):-.
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