Open charm effects in e(+)e(-) -> J/psi eta, J/psi pi(0), and phi eta(c)
Wang Q(王倩); Liu XH(刘晓海); Zhao Q(赵强); Wang, Q; Liu, XH; Zhao, Q
刊名PHYSICAL REVIEW D
2011
卷号84期号:1页码:14007
学科分类Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.84.014007
通讯作者[Wang, Qian ; Liu, Xiao-Hai ; Zhao, Qiang] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Zhao, Qiang] Chinese Acad Sci, Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China
文章类型Article
英文摘要We propose to study the open charm effects in e(+)e(-) -> J/psi eta, J/psi pi(0) and phi eta(c). We show that the exclusive cross section line shapes of these processes would be strongly affected by the open charm effects. Since the final state light meson productions are through soft gluon radiations, we assume a recognition of this soft process via charmed meson loops at the hadronic level. A unique feature among these three reactions is that the D (D) over bar* + c.c. open channel is located in a relatively isolated energy, i. e. similar to 3: 876 GeV, which is sufficiently far away from the known charmonia psi(3770) and psi(4040). Therefore, the cross section line shapes of these reactions may provide an opportunity for singling out the open charm effects with relatively well-defined charmonium contributions. In particular, we find that the reaction e(+)e(-) -> J/psi pi(0) is sensitive to the open charm D (D) over bar* + c.c. Because of the dominance of the isospin-0 component at the charmonium energy region, we predict an enhanced model-independent cusp effect between the thresholds of D-0(D) over bar*(0) + c.c. and D+(D) over bar*(-) + c.c. This study can also help us to understand the X(3900) enhancement recently observed by the Belle Collaboration in e(+)e(-) -> D (D) over bar + c.c.
类目[WOS]Astronomy & Astrophysics ; Physics, Particles & Fields
研究领域[WOS]Astronomy & Astrophysics ; Physics
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语种英语
WOS记录号WOS:000292514400005
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被引频次:14[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/311005/240419
专题中国科学院高能物理研究所_理论物理室_期刊论文
作者单位中国科学院高能物理研究所
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Wang Q,Liu XH,Zhao Q,et al. Open charm effects in e(+)e(-) -> J/psi eta, J/psi pi(0), and phi eta(c)[J]. PHYSICAL REVIEW D,2011,84(1):14007.
APA 王倩,刘晓海,赵强,Wang, Q,Liu, XH,&Zhao, Q.(2011).Open charm effects in e(+)e(-) -> J/psi eta, J/psi pi(0), and phi eta(c).PHYSICAL REVIEW D,84(1),14007.
MLA 王倩,et al."Open charm effects in e(+)e(-) -> J/psi eta, J/psi pi(0), and phi eta(c)".PHYSICAL REVIEW D 84.1(2011):14007.
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