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The cross section of the process e(+) + e(-) -> J/psi + eta(c) within the QCD light-cone sum rules
Sun, Yan-Jun; Wu, Xing-Gang; Zuo, Fen; Huang, Tao; Sun, YJ , Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China
2010
发表期刊EUROPEAN PHYSICAL JOURNAL C
ISSN1434-6044
卷号67期号:40910页码:117-123
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.
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
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
学科领域Physics ; Physics
资助者Natural Science Foundation of China[10675132, 10735080, 10805082]; CQ CSTC[2008BB0298] ; Natural Science Foundation of China[10675132, 10735080, 10805082]; CQ CSTC[2008BB0298] ; Natural Science Foundation of China[10675132, 10735080, 10805082]; CQ CSTC[2008BB0298] ; Natural Science Foundation of China[10675132, 10735080, 10805082]; CQ CSTC[2008BB0298]
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收录类别SCI
资助者Natural Science Foundation of China[10675132, 10735080, 10805082]; CQ CSTC[2008BB0298] ; Natural Science Foundation of China[10675132, 10735080, 10805082]; CQ CSTC[2008BB0298] ; Natural Science Foundation of China[10675132, 10735080, 10805082]; CQ CSTC[2008BB0298] ; Natural Science Foundation of China[10675132, 10735080, 10805082]; CQ CSTC[2008BB0298]
WOS记录号WOS:000277300300009
引用统计
被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5116
专题理论物理所1978-2010年知识产出
通讯作者Sun, YJ , Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China
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Sun, Yan-Jun,Wu, Xing-Gang,Zuo, Fen,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.
APA Sun, Yan-Jun,Wu, Xing-Gang,Zuo, Fen,Huang, Tao,&Sun, YJ , Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China.(2010).The cross section of the process e(+) + e(-) -> J/psi + eta(c) within the QCD light-cone sum rules.EUROPEAN PHYSICAL JOURNAL C,67(40910),117-123.
MLA Sun, Yan-Jun,et al."The cross section of the process e(+) + e(-) -> J/psi + eta(c) within the QCD light-cone sum rules".EUROPEAN PHYSICAL JOURNAL C 67.40910(2010):117-123.
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