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题名: Decomposition of the equation of state of asymmetric nuclear matter into different spin-isospin channels
作者: Zuo Wei ;  周善贵 ;  Li Jun-Qing ;  Zhao En-Guang ;  Scheid, W.
刊名: CHINESE PHYSICS C
出版日期: 2009
卷号: 33, 期号:7, 页码:547-551
关键词: MEAN-FIELD ;  PARAMETRIZATION ;  FORCES
学科分类: Physics
通讯作者: Zuo, W , Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
部门归属: [Zuo, W; Li, JQ] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China; [Zhou, SG; Zhao, EG] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; [Scheid, W] Univ Giessen, Inst Theoret Phys, D-35392 Giessen, Germany
英文摘要: We investigate the equation of state of asymmetric nuclear matter and its isospin dependence in various spin-isospin ST channels within the framework of the Brueckner-Hartree-Fock approach extended to include a microscopic three-body force (TBF). It is shown that the potential energy per nucleon in the isospin-singlet T = 0 channel is mainly determined by the contribution from the tensor SD coupled channel. At high densities, the TBF effect on the isospin-triplet T = 1 channel contribution turns out, to be much larger than that on the T = 0 channel contribution. At, low densities around and below the normal nuclear matter density, the isospin dependence is found to come essentially from the isospin-singlet, SD channel and the isospin-triplet, T = I component is almost independent, of isospin asymmetry. As the density increases, the T = 1 channel contribution becomes sensitive to the isospin asymmetry and at high enough densities its isospin dependence may even become more pronounced than that of the T = 0 contribution. The present results may provide some microscopic constraints for improving effective nucleon-nucleon interactions in a nuclear medium and for constructing new functionals of effective nucleon-nucleon interaction based oil microscopic many-body theories.
资助者: National Natural Science Foundation of China[10875151, 10575119, 104350101, 10575036, 107050117, 10811130077]; Knowledge Innovation Project[KJCX3-SYW-N2]; Chinese Academy of Sciences, Major State Basic Research Developing Program of China[200701815004]
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000267615400008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5288
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Zuo Wei,Zhou Shan-Gui,Li Jun-Qing,et al. Decomposition of the equation of state of asymmetric nuclear matter into different spin-isospin channels[J]. CHINESE PHYSICS C,2009,33(7):547-551.
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