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.
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.
