Study of X(1812) as a (K*(K)over-bar*) molecular state

doi:10.1088/0954-3899/34/12/012

IHEP OpenIR > 实验物理中心

	*Study of X(1812) as a (K(K)over-bar) molecular state*
	Chen, H; Ping RG(平荣刚); Ping, RG
	2007
发表期刊	JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
卷号	34 期号:12 页码:2679-2690
通讯作者	[Chen, Hong] SW Univ, Sch Phys Sci & Technol, Chongqing 400715, Peoples R China ; [Ping, Rong-Gang] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
摘要	We investigate decay and production mechanisms of the resonance X( 1812) recently observed in the J/psi -> gamma X(1812), X(1812) -> omega phi at BESII. The decay widths of X(1812) -> eta eta', eta eta, omega phi, K+ K-, rho(+) rho(-), omega omega, K(+) K(-) and pi(+) pi(-) are evaluated based on the scenario of the X( 1812) as a candidate of the ( K(K) over bar)molecule. It turns out that the quark exchange mechanism plays an important role in the understanding of the large decay width for the X( 1812) -> omega phi. It is also found that the decay widths for X (1812) -> eta eta' and.. are enhanced by the quark exchange mechanism. These channels are suggested to be the tools to test the molecular scenario in experiment. The branching fraction of Br(X -> omega phi) is evaluated to be about 4.60%. Searches for additional evidence about the X( 1812) in J/psi radiative decays are reviewed. In the molecular scenario, the X( 1812) production rate is also evaluated to be Gamma(J/psi -> gamma X)/Gamma(J/psi -> gamma K(+) K(-)) = 2.13(-1.85)(+ 7.41), which is close to the measured value 2.83 +/- 0.92.
文章类型	Article
学科领域	Physics
研究领域[WOS]	Physics
DOI	10.1088/0954-3899/34/12/012
URL	查看原文
语种	英语
WOS类目	Physics, Nuclear ; Physics, Particles & Fields
WOS记录号	WOS:000252019600014
引用统计	被引频次：4[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/311005/239807
专题	实验物理中心加速器中心
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	Chen, H,Ping RG,Ping, RG. Study of X(1812) as a (K(K)over-bar) molecular state[J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,2007,34(12):2679-2690.
APA	Chen, H,平荣刚,&Ping, RG.(2007).Study of X(1812) as a (K(K)over-bar) molecular state.JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,34(12),2679-2690.
MLA	Chen, H,et al."Study of X(1812) as a (K(K)over-bar) molecular state".JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS 34.12(2007):2679-2690.

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