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题名: Chiral SU(3) quark model study of tetraquark states: cn(n)over-bar(s)over barcs(s)over bar(s)over bar
作者: Zhang Hai-Xia ;  Wang Wen-Ling ;  Dai Yuan-Ben ;  Zhang Zong-Ye
刊名: COMMUNICATIONS IN THEORETICAL PHYSICS
出版日期: 2008
卷号: 49, 期号:2, 页码:414-420
学科分类: Physics
通讯作者: Zhang, HX , Chinese Acad Sci, Inst High Energy Phys, POB 918-4, Beijing 100049, Peoples R China
部门归属: [Zhang, HX; Zhang, ZY] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China; [Wang, WL] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China; [Dai, YB] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: The new members of the charm-strange family D-sJ*(2317), D-sJ(2460), and D-s(2632), which have the surprising properties, are challenging the present models. Many theoretical interpretations have been devoted to this issue. Most authors suggest that they are not the conventional c (s) over tilde quark model states, but possibly are four-quark states, molecule states, or mixtures of a P-wave c (s) over bar and a four-quark state. In this work, we follow the four-quark-state picture, and study the masses of cn (n) over bar(s) over bar /cs(s)over bar>(s)over bar> states (n is u or d quark) in the chiral SU(3) quark model. The numerical results show that the mass of the mixed four-quark state (cn (n) over bar(s) over bar /cs(s)over bar>(s)over bar>) with spin parity J(P) = 0(+) might not be D-s(2632). At the same time, we also conclude that D-sJ*(2317) and D-sJ(2460) cannot be explained as the pure four-quark state.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000253447100035
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5586
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Zhang Hai-Xia,Wang Wen-Ling,Dai Yuan-Ben,et al. Chiral SU(3) quark model study of tetraquark states: cn(n)over-bar(s)over barcs(s)over bar(s)over bar[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2008,49(2):414-420.
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