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Chiral SU(3) quark model study of tetraquark states: cn(n)over-bar(s)over barcs(s)over bar(s)over bar
Zhang HX(张海霞); Zhang ZY(张宗烨); Zhang, HX; Wang, WL; Dai, YB; Zhang, ZY
2008
发表期刊COMMUNICATIONS IN THEORETICAL PHYSICS
卷号49期号:2页码:414-420
通讯作者[Zhang Hai-Xia ; Zhang Zong-Ye] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Wang Wen-Ling] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China ; [Dai Yuan-Ben] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
文章类型Article
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.
关键词four-quark states quark model chiral symmetry
学科领域Physics
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语种英语
WOS研究方向Physics
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000253447100035
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/237380
专题院士
作者单位中国科学院高能物理研究所
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GB/T 7714
Zhang HX,Zhang ZY,Zhang, HX,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.
APA 张海霞,张宗烨,Zhang, HX,Wang, WL,Dai, YB,&Zhang, ZY.(2008).Chiral SU(3) quark model study of tetraquark states: cn(n)over-bar(s)over barcs(s)over bar(s)over bar.COMMUNICATIONS IN THEORETICAL PHYSICS,49(2),414-420.
MLA 张海霞,et al."Chiral SU(3) quark model study of tetraquark states: cn(n)over-bar(s)over barcs(s)over bar(s)over bar".COMMUNICATIONS IN THEORETICAL PHYSICS 49.2(2008):414-420.
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