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题名: D-sJ(+)(2632): An excellent candidate of tetraquarks
作者: Liu, YR ;  Zhu, SL ;  Dai, YB ;  Liu, C
刊名: PHYSICAL REVIEW D
出版日期: 2004
卷号: 70, 期号:9, 页码:-
学科分类: Physics
通讯作者: Liu, YR , Peking Univ, Dept Phys, Beijing 100871, Peoples R China.
部门归属: Peking Univ, Dept Phys, Beijing 100871, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: We analyze various possible interpretations of the narrow state D-sJ(2632) which lies 100 MeV above threshold. This interesting state decays mainly into D(s)eta instead of (DK+)-K-0. If this relative branching ratio is further confirmed by other experimental groups, we point out that the identification of D-sJ(2632) either as a c (s) over bar state or more generally as a (3) over bar state in the SU(3)(F) representation is probably problematic. Instead, such an anomalous decay pattern strongly indicates D-sJ(2632) is a four-quark state in the SU(3)(F) 15 representation with the quark content 1/2root2 (ds (d) over bar +sd (d) over bar +su (u) over bar -2ss (s) over bar)(c) over bar. We discuss its partners in the same multiplet and the similar four-quark states composed of a bottom quark B-sJ(0)(5832). Experimental searches of other members especially those exotic ones are strongly called for.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000225440600045
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13977
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:
Liu, YR,Zhu, SL,Dai, YB,et al. D-sJ(+)(2632): An excellent candidate of tetraquarks[J]. PHYSICAL REVIEW D,2004,70(9):-.
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