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Sun, Yan-Jun; Wu, Xing-Gang; Zuo, Fen; Huang, Tao; Sun, YJ , Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China
The cross section of the process e(+) + e(-) -> J/psi + eta(c) within the QCD light-cone sum rules
Source PublicationEUROPEAN PHYSICAL JOURNAL C
KeywordDouble 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
AbstractWe 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.
2010
ISSN1434-6044
Volume67Issue:40910Pages:117-123
Subject AreaPhysics ; Physics
Indexed BySCI
Funding OrganizationNatural 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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Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/5116
Collection理论物理所科研产出_SCI论文
Corresponding AuthorSun, YJ , Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China
Recommended Citation
GB/T 7714
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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