Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach(Ⅴ) Three -Body Force Effect on Single-Particle Potential

ZUO Wei; Lombardo U; LIU Jian-Ye; LI Jun-Qing

Chinese Physics C> 2003, Vol. 27> Issue(7) : 585-589

Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach(Ⅴ) Three -Body Force Effect on Single-Particle Potential

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000,China2 INFN-LNS,44 Via S. Sofia, I-95123 Catania, Italy

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Abstract：
Within the isospin dependent Extended Brueckner-Hartree-Fock framework,the three-body force effects on the single particle potentials of a neutron and a proton in isospin asymmetric nuclear matter and their isospin denpendence have been investigated. It is shown that the contribution of the three-body force is repulsive. At low density, i.e., around and below the empirical saturation density, the effect of the three-body force is rather small, while as increasing density, it becomes more and more pronounced. It is also found that at a given density, the three-body effect increases with isospin asymmetry.

References

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[16]	ZUO Wei , LI Zeng-Hua , LIU Jian-Ye . Properties of Isospin Asymmetric Nuclear Matterand Extended BHF Approach(Ⅰ) Isospin Dependent Extended BHF Approach. Chinese Physics C, 2002, 26(7): 703-711.
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ZUO Wei, Lombardo U, LIU Jian-Ye and LI Jun-Qing. Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach(Ⅴ) Three -Body Force Effect on Single-Particle Potential[J]. Chinese Physics C, 2003, 27(7): 585-589.

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Received: 2002-09-30
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach(Ⅴ) Three -Body Force Effect on Single-Particle Potential

Corresponding author: ZUO Wei,

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000,China2 INFN-LNS,44 Via S. Sofia, I-95123 Catania, Italy

Received Date: 2002-09-30

Accepted Date: 1900-01-01

Available Online: 2003-07-05

Abstract: Within the isospin dependent Extended Brueckner-Hartree-Fock framework,the three-body force effects on the single particle potentials of a neutron and a proton in isospin asymmetric nuclear matter and their isospin denpendence have been investigated. It is shown that the contribution of the three-body force is repulsive. At low density, i.e., around and below the empirical saturation density, the effect of the three-body force is rather small, while as increasing density, it becomes more and more pronounced. It is also found that at a given density, the three-body effect increases with isospin asymmetry.

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Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach(Ⅴ) Three -Body Force Effect on Single-Particle Potential

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