Single particle properties in asymmetric nuclear matter and TBF rearrangement effect

ZUO Wei

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

Single particle properties in asymmetric nuclear matter and TBF rearrangement effect

ZUO Wei ^,

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

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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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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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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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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Single particle properties in asymmetric nuclear matter and TBF rearrangement effect

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