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Chinese Physics C> 2008, Vol. 32> Issue(S2) : 64-69 

Single particle properties in asymmetric nuclear matter and TBF rearrangement effect

  •  Institute of Modern Physics, Chinese Academy of Science, Lanzhou 730000, China

  • We have developed the formula and the numerical code for calculating the rearrangement contribution to the single particle (s.p.) properties in asymmetric nuclear matter induced by three-body forces within the framework of the Brueckner theory extended to include a microscopic three-body force (TBF). We have investigated systematically the TBF-induced rearrangement effect on the s.p. properties and their isospin-behavior in neutron-rich nuclear medium. It is shown that the TBF induces a repulsive rearrangement contribution to the s.p. potential in nuclear medium. The repulsion of the TBF rearrangement contribution increases rapidly as a function of density and nucleon momentum. It reduces largely the attraction of the BHF s.p. potential and enhances strongly the momentum dependence of the s.p. potential at large densities and high-momenta. The TBF rearrangement effect on symmetry potential is to enhances its repulsion (attraction) on neutrons (protons) in dense asymmetric nuclear matter.
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ZUO Wei. Single particle properties in asymmetric nuclear matter and TBF rearrangement effect[J]. Chinese Physics C, 2008, 32(S2): 64-69.
ZUO Wei. Single particle properties in asymmetric nuclear matter and TBF rearrangement effect[J]. Chinese Physics C, 2008, 32(S2): 64-69. shu
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Received: 2008-07-17
Revised: 1900-01-01
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Single particle properties in asymmetric nuclear matter and TBF rearrangement effect

    Corresponding author: ZUO Wei,
  • Institute of Modern Physics, Chinese Academy of Science, Lanzhou 730000, China
  • Received Date: 2008-07-17
  • Accepted Date: 1900-01-01
  • Available Online: 2008-01-03

Abstract: We have developed the formula and the numerical code for calculating the rearrangement contribution to the single particle (s.p.) properties in asymmetric nuclear matter induced by three-body forces within the framework of the Brueckner theory extended to include a microscopic three-body force (TBF). We have investigated systematically the TBF-induced rearrangement effect on the s.p. properties and their isospin-behavior in neutron-rich nuclear medium. It is shown that the TBF induces a repulsive rearrangement contribution to the s.p. potential in nuclear medium. The repulsion of the TBF rearrangement contribution increases rapidly as a function of density and nucleon momentum. It reduces largely the attraction of the BHF s.p. potential and enhances strongly the momentum dependence of the s.p. potential at large densities and high-momenta. The TBF rearrangement effect on symmetry potential is to enhances its repulsion (attraction) on neutrons (protons) in dense asymmetric nuclear matter.

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