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D-sJ(+)(2632): An excellent candidate of tetraquarks
Liu, YR; Zhu, SL; Dai, YB; Liu, C; Liu, YR , Peking Univ, Dept Phys, Beijing 100871, Peoples R China.
2004
发表期刊PHYSICAL REVIEW D
ISSN0556-2821
卷号70期号:9页码:-
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.
部门归属Peking Univ, Dept Phys, Beijing 100871, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
学科领域Physics
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收录类别SCI
WOS记录号WOS:000225440600045
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被引频次:27[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13977
专题理论物理所SCI论文
通讯作者Liu, YR , Peking Univ, Dept Phys, Beijing 100871, Peoples R China.
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Liu, YR,Zhu, SL,Dai, YB,et al. D-sJ(+)(2632): An excellent candidate of tetraquarks[J]. PHYSICAL REVIEW D,2004,70(9):-.
APA Liu, YR,Zhu, SL,Dai, YB,Liu, C,&Liu, YR , Peking Univ, Dept Phys, Beijing 100871, Peoples R China..(2004).D-sJ(+)(2632): An excellent candidate of tetraquarks.PHYSICAL REVIEW D,70(9),-.
MLA Liu, YR,et al."D-sJ(+)(2632): An excellent candidate of tetraquarks".PHYSICAL REVIEW D 70.9(2004):-.
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