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《中国物理C》（英文）编辑部
2024年10月30日
Chinese Physics C> 2017, Vol. 41> Issue(11) : 114102 DOI: 10.1088/1674-1137/41/11/114102

Effect of tensor correlations on the depletion of nuclear Fermi sea within the extended BHF approach

  • 1.

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

  • 2.

     Department of Physics, Iowa State University, Ames, IA, 50011 USA

  • 3.

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

  • 4.

     University of Chinese Academy of Sciences, Beijing 100049, China

  • We have investigated the effect of tensor correlations on the depletion of the nuclear Fermi sea in symmetric nuclear matter within the framework of the extended Brueckner-Hartree-Fock approach by adopting the AV18 two-body interaction and a microscopic three-body force. The contributions from various partial wave channels including the isospin-singlet T=0 channel, the isospin-triplet T=1 channel and the T=0 tensor 3SD1 channel have been calculated. The T=0 neutron-proton correlations play a dominant role in causing the depletion of nuclear Fermi sea. The T=0 correlation-induced depletion turns out to stem almost completely from the 3SD1 tensor channel. The isospin-singlet T=0 3SD1 tensor correlations are shown to be responsible for most of the depletion, which amounts to more than 70 percent of the total depletion in the density region considered. The three-body force turns out to lead to an enhancement of the depletion at high densities well above the empirical saturation density and its effect increases as a function of density.
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Peng Yin, Jianmin Dong and Wei Zuo. Effect of tensor correlations on the depletion of nuclear Fermi sea within the extended BHF approach[J]. Chinese Physics C, 2017, 41(11): 114102. doi: 10.1088/1674-1137/41/11/114102
Peng Yin, Jianmin Dong and Wei Zuo. Effect of tensor correlations on the depletion of nuclear Fermi sea within the extended BHF approach[J]. Chinese Physics C, 2017, 41(11): 114102.  doi: 10.1088/1674-1137/41/11/114102 shu
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Received: 2017-05-28
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    Supported by National Natural Science Foundation of China (11435014, 11175219), the 973 Program of China (2013CB834405) and the Knowledge Innovation Project (KJCX2-EW-N01) of the Chinese Academy of Sciences

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Effect of tensor correlations on the depletion of nuclear Fermi sea within the extended BHF approach

    Corresponding author: Peng Yin,
    Corresponding author: Wei Zuo,
  • 1. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
  • 2. Department of Physics, Iowa State University, Ames, IA, 50011 USA
  • 3.  Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
  • 4. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received Date: 2017-05-28
  • Available Online: 2017-11-05
Fund Project:  Supported by National Natural Science Foundation of China (11435014, 11175219), the 973 Program of China (2013CB834405) and the Knowledge Innovation Project (KJCX2-EW-N01) of the Chinese Academy of Sciences

Abstract: We have investigated the effect of tensor correlations on the depletion of the nuclear Fermi sea in symmetric nuclear matter within the framework of the extended Brueckner-Hartree-Fock approach by adopting the AV18 two-body interaction and a microscopic three-body force. The contributions from various partial wave channels including the isospin-singlet T=0 channel, the isospin-triplet T=1 channel and the T=0 tensor 3SD1 channel have been calculated. The T=0 neutron-proton correlations play a dominant role in causing the depletion of nuclear Fermi sea. The T=0 correlation-induced depletion turns out to stem almost completely from the 3SD1 tensor channel. The isospin-singlet T=0 3SD1 tensor correlations are shown to be responsible for most of the depletion, which amounts to more than 70 percent of the total depletion in the density region considered. The three-body force turns out to lead to an enhancement of the depletion at high densities well above the empirical saturation density and its effect increases as a function of density.

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