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题名: Quark mean-field model for single and double Lambda and Xi hypernuclei
作者: Hu, JN ;  Li, A ;  Shen, H ;  Toki, H
刊名: PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS
出版日期: 2014
期号: 1, 页码:013D02
关键词: HYPERON-HYPERON INTERACTION ;  DOUBLE HYPERFRAGMENT ;  PHYSICS
学科分类: Physics
DOI: 10.1093/ptep/ptt119
通讯作者: Hu, JN (reprint author), Peking Univ, Sch Phys, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China.
部门归属: [Hu, J. N.] Peking Univ, Sch Phys, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China; [Li, A.] Xiamen Univ, Dept Astron, Xiamen 361005, Peoples R China; [Li, A.] Xiamen Univ, Inst Theoret Phys & Astrophys, Xiamen 361005, Peoples R China; [Li, A.] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China; [Shen, H.] Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China; [Toki, H.] Osaka Univ, RCNP, Osaka 5670047, Japan
英文摘要: The study of hypernuclei in the quark mean-field model are extended from single-Lambda hypernuclei to double-Lambda hypernuclei as well as Xi hypernuclei (double strangeness nuclei), with a broken SU(3) symmetry for the quark confinement potential. The strength of the potential for u, d quarks is constrained by the properties of finite nuclei, while that for the s quark is fixed by the single Lambda-nucleus potential at the nuclear saturation density, which has a slightly different value. Compared to our previous work, we find that the introduction of such symmetry breaking improves efficiently the description of the single-Lambda energies for a wide range of mass regions, which demonstrates the importance of this effect on the study of hypernuclei. Predictions for double-Lambda hypernuclei and Xi hypernuclei are then made, and compared with some of the available experiential double-Lambda hypernuclei data and other model calculations. The consistency of our results with the available double-Lambda hypernucleus is found to be surprisingly good. Also, there is generally a bound state for Xi(0) hypernuclei with both light and heavy core nuclei in our model.
资助者: CPSC [2012M520100]; Fundamental Research Funds for the Central Universities
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000330938300010
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15518
Appears in Collections:理论物理所2014年知识产出 _期刊论文

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Recommended Citation:
Hu, JN,Li, A,Shen, H,et al. Quark mean-field model for single and double Lambda and Xi hypernuclei[J]. PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS,2014(1):013D02.
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