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Possible contributions to e(+)e(-)-> J/psi+eta(c) due to intermediate meson rescatterings
Zhang YJ(张远江); Zhao Q(赵强); Zhang, YJ; Zhao, Q; Qiao, CF
2008
发表期刊PHYSICAL REVIEW D
卷号78期号:5页码:54014
通讯作者[Zhang, Yuan-Jiang ; Zhao, Qiang] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Zhao, Qiang] Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England ; [Zhang, Yuan-Jiang ; Qiao, Cong-Feng] Chinese Acad Sci, Grad Univ, Beijing, Peoples R China ; [Zhao, Qiang ; Qiao, Cong-Feng] Chinese Acad Sci, Ctr Theoret Phys, Sci Facil, Beijing 100049, Peoples R China
文章类型Article
摘要Inspired by the obvious discrepancies between experiment and nonrelativistic QCD (NRQCD) studies of e(+)e(-) -> J/psi + eta(c) at root s similar or equal to 10.6 GeV , we investigate contributions from intermediate meson loops as long-range interaction transitions to this process. The intermediate meson loops include D (D) over bar((D) over bar*), D (D) over bar* (D or (D) over bar*, D*(D) over bar*(D) and corresponding D-s intermediate mesons. With the constraints from experimental data on the vertex couplings, we find that the intermediate meson loops account for 2.7 similar to 6.7 fb of the cross sections within a reasonable range of cutoff energies of the factor parameter. We also investigate contributions from the absorptive part and find that it accounts for approximately 0.58 similar to 1.38 fb. These results imply that contributions from long-range interaction transitions may still play a role in such an energy region.
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.78.054014
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语种英语
WOS研究方向Astronomy & Astrophysics ; Physics
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000259692600035
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被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240663
专题理论物理室
作者单位中国科学院高能物理研究所
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Zhang YJ,Zhao Q,Zhang, YJ,et al. Possible contributions to e(+)e(-)-> J/psi+eta(c) due to intermediate meson rescatterings[J]. PHYSICAL REVIEW D,2008,78(5):54014.
APA 张远江,赵强,Zhang, YJ,Zhao, Q,&Qiao, CF.(2008).Possible contributions to e(+)e(-)-> J/psi+eta(c) due to intermediate meson rescatterings.PHYSICAL REVIEW D,78(5),54014.
MLA 张远江,et al."Possible contributions to e(+)e(-)-> J/psi+eta(c) due to intermediate meson rescatterings".PHYSICAL REVIEW D 78.5(2008):54014.
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