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题名: Three-body force effect on nuclear symmetry energy and single-particle properties of asymmetric nuclear matter
作者: Zuo, W ;  Bombaci, I ;  Lombardo, U
刊名: EUROPEAN PHYSICAL JOURNAL A
出版日期: 2014
卷号: 50, 期号:2, 页码:12
关键词: EQUATION-OF-STATE ;  HEAVY-ION COLLISIONS ;  MONTE-CARLO CALCULATIONS ;  NEUTRON-RICH NUCLEI ;  MEAN-FIELD ;  SEPARABLE REPRESENTATION ;  MOMENTUM DISTRIBUTION ;  3-NUCLEON POTENTIALS ;  DENSITY-DEPENDENCE ;  ELLIPTIC FLOW
学科分类: Physics
DOI: 10.1140/epja/i2014-14012-3
通讯作者: Zuo, W (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China.
部门归属: [Zuo, Wei] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China ;  [Zuo, Wei] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China ;  [Bombaci, Ignazio] Univ Pisa, Dipartimento Fis E Fermi, I-56127 Pisa, Italy ;  [Bombaci, Ignazio] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy ;  [Lombardo, Umberto] Univ Catania, I-95123 Catania, Italy ;  [Lombardo, Umberto] Ist Nazl Fis Nucl, Lab Nazl Sud, I-95123 Catania, Italy
英文摘要: We present an upgraded review of our microscopic investigation on the single-particle properties and the EOS of isospin asymmetric nuclear matter within the framework of the Brueckner theory extended to include a microscopic three-body force. We pay special attention to the discussion of the three-body force effect and the comparison of our results with the predictions by other ab initio approaches. Three-body force is shown to be necessary for reproducing the empirical saturation properties of symmetric nuclear matter within nonrelativistic microscopic frameworks, and also for extending the hole-line expansion to a wide density range. The three-body force effect on nuclear symmetry energy is repulsive, and it leads to a significant stiffening of the density dependence of symmetry energy at supra-saturation densities. Within the Brueckner approach, the three-body force affects the nucleon s.p. potentials primarily via its rearrangement contribution which is strongly repulsive and momentum-dependent at high densities and high momenta. Both the rearrangement contribution induced by the three-body force and the effect of ground-state correlations are crucial for predicting reliably the single-particle properties within the Brueckner framework.
资助者: National Natural Science Foundation of China [11175219]; 973 Program of China [2013CB834405]; Chinese Academy of Sciences [KJCX2-EW-N01]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000331985100004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15816
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Recommended Citation:
Zuo, W,Bombaci, I,Lombardo, U. Three-body force effect on nuclear symmetry energy and single-particle properties of asymmetric nuclear matter[J]. EUROPEAN PHYSICAL JOURNAL A,2014,50(2):12.
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