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题名: The cross section of the process e(+) + e(-) -> J/psi + eta(c) within the QCD light-cone sum rules
作者: Sun, Yan-Jun ;  Sun, Yan-Jun ;  Wu, Xing-Gang ;  Wu, Xing-Gang ;  Zuo, Fen ;  Zuo, Fen ;  Huang, Tao ;  Huang, Tao
刊名: EUROPEAN PHYSICAL JOURNAL C
出版日期: 2010
卷号: 67, 期号:40910, 页码:117-123
关键词: DOUBLE CHARMONIUM PRODUCTION ;  DOUBLE CHARMONIUM PRODUCTION ;  PION WAVE-FUNCTION ;  PION WAVE-FUNCTION ;  QCD SUM-RULES ;  QCD SUM-RULES ;  ROOT-S=10.6 GEV ;  ROOT-S=10.6 GEV ;  QUANTUM CHROMODYNAMICS ;  QUANTUM CHROMODYNAMICS ;  RESONANCE PHYSICS ;  RESONANCE PHYSICS ;  FORM-FACTOR ;  FORM-FACTOR ;  QUARK MASS ;  QUARK MASS ;  ANNIHILATION ;  ANNIHILATION ;  DECAYS ;  DECAYS
学科分类: Physics ;  Physics
通讯作者: Sun, YJ , Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China
部门归属: [Sun, YJ] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China; [Sun, YJ; Huang, T] Chinese Acad Sci, Inst High Energy Phys & Theoret Phys Enter Sci Fa, Beijing 100049, Peoples R China; [Wu, XG] Chongqing Univ, Dept Phys, Chongqing 400044, Peoples R China; [Zuo, F] Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China
英文摘要: We calculate the cross section of the exclusive process e(+) + e(-) -> J/psi + eta(c) at the leading order approximation within the QCD light-cone sum rules approach. It is found that the form factor F(VP)(V = J/psi, P = eta(c)) depends mainly on the behavior of the twist-2 distribution amplitude of the eta(c) meson at the scale of this process. Thus in order to obtain a reliable estimation of the cross section, it is important to have a realistic distribution amplitude of the eta(c) meson and to deal with the evolution of the distribution amplitude to the effective energy scale of the process. Our results show that one can obtain a compatible prediction with the Belle and BaBar experimental data.
资助者: Natural Science Foundation of China[10675132, 10735080, 10805082]; CQ CSTC[2008BB0298]
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000277300300009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5116
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:
Sun, Yan-Jun,Sun, Yan-Jun,Wu, Xing-Gang,et al. The cross section of the process e(+) + e(-) -> J/psi + eta(c) within the QCD light-cone sum rules[J]. EUROPEAN PHYSICAL JOURNAL C,2010,67(40910):117-123.
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