In-medium properties of Theta(+) as a K pi N structure in relativistic mean field theory
Zhong, XH; Peng GX(彭光雄); Peng, GX; Ning, PZ
刊名PHYSICAL REVIEW C
2005
卷号72期号:6页码:65212
学科分类Physics
DOI10.1103/PhysRevC.72.065212
通讯作者Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China ; China Ctr Adv Sci & Technol, World Lab, Beijing 100080, Peoples R China
文章类型Article
英文摘要The properties of nuclear matter are discussed with the relativistic mean-field (RMF) theory. Then, we use two models in studying the in-medium properties of Theta(+): A pointlike Theta(+) in the usual RMF and a K pi N structure for the pentaquark. It is found that the in-medium properties of Theta(+) are dramatically modified by its internal structure. The effective mass of Theta(+) in medium is, at normal nuclear density, about 1030 MeV in the pointlike model, whereas it is about 1120 MeV in the K pi N pentaquark model. The nuclear potential depth of Theta(+) in the K pi N model is approximately -37.5 MeV, much shallower than -90 MeV in the usual pointlike RMF model.
类目[WOS]Physics, Nuclear
研究领域[WOS]Physics
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语种英语
WOS记录号WOS:000234337400089
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被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240739
专题中国科学院高能物理研究所_理论物理室_期刊论文
作者单位中国科学院高能物理研究所
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Zhong, XH,Peng GX,Peng, GX,et al. In-medium properties of Theta(+) as a K pi N structure in relativistic mean field theory[J]. PHYSICAL REVIEW C,2005,72(6):65212.
APA Zhong, XH,彭光雄,Peng, GX,&Ning, PZ.(2005).In-medium properties of Theta(+) as a K pi N structure in relativistic mean field theory.PHYSICAL REVIEW C,72(6),65212.
MLA Zhong, XH,et al."In-medium properties of Theta(+) as a K pi N structure in relativistic mean field theory".PHYSICAL REVIEW C 72.6(2005):65212.
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