| Qq^- Q ^- q＇ States in Chiral SU（3） Quark Model |
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| 引用本文： | 张海霞,张敏,张宗烨.Qq^- Q ^- q＇ States in Chiral SU（3） Quark Model[J].中国物理快报,2007,24(9):2533-2536. |
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| 作者姓名： | 张海霞 张敏 张宗烨 |
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| 作者单位： | Institute of High Energy Physics, Chinese Academy of Sciences, PO Box 918-4, Beijing 100049 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 10475087. |
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| 摘 要： | We study the masses of Qq^- Q ^- q＇ states with J^PC=0^＋＋,1＋＋ and 2^＋＋ in the chiral SU（3）quark model, where Q is the heavy quark （c or b） and q （q＇） is the light quark （u, d or s）. According to our numerical results, it is improbable to make the interpretation of cn^-C^-n]1＋＋ and cn^-C^-n]2＋＋ （n = u, d） states as X（3872） and Y（3940）, respectively. However, it is interesting to find the tetraquarks in the bq^-b^-q＇ system.
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| 关 键 词： | Qq^- Q ^- q＇ 手性 夸克模型 物理学 |
| 收稿时间： | 2007-5-17 |
| 修稿时间： | 2007-05-17 |
QqQq' States in Chiral SU(3) Quark Model |
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| ZHANG Hai-Xia,ZHANG Min,ZHANG Zong-Ye.QqQq'' States in Chiral SU(3) Quark Model[J].Chinese Physics Letters,2007,24(9):2533-2536. |
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| Authors: | ZHANG Hai-Xia ZHANG Min ZHANG Zong-Ye |
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| Affiliation: | Institute of High Energy Physics, Chinese Academy of Sciences, PO Box 918-4, Beijing 100049 |
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| Abstract: | We study the masses of QqQq' states with JPC=0++, 1++, 1+- and 2++ in the chiral SU(3) quark model, where Q is the heavy quark (c or b) and q (q') is the light quark (u, d or s). According to our numerical results, it is improbable to make the interpretation of cncn]1++ and cncn]2++ (n=u, d) states as X(3872) and Y(3940), respectively. However, it is interesting to find the tetraquarks in the bqbq' system. |
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| Keywords: | 12 39 -x 14 40 Lb 21 45 +v |
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