Open charm effects in e(+)e(-) -> J/psi eta, J/psi pi(0), and phi eta(c)

doi:10.1103/PhysRevD.84.014007

IHEP OpenIR > 理论物理室

	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
	2011
发表期刊	PHYSICAL REVIEW D
卷号	84 期号:1 页码:14007
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
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.
学科领域	Astronomy & Astrophysics; Physics
研究领域[WOS]	Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
DOI	10.1103/PhysRevD.84.014007
URL	查看原文
语种	英语
研究领域[WOS]	Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
WOS类目	Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号	WOS:000292514400005
引用统计	被引频次：15[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	理论物理室
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	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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