Single particle potentials of asymmetric nuclear matter in different spin-isospin channels

  • We investigate the neutron and proton single particle (s.p.) potentials of asymmetric nuclear matter and their isospin dependence in various spin-isospin ST channels within the framework of the Brueckner-Hartree-Fock approach. It is shown that in symmetric nuclear matter, the s.p. potentials in both the isospin-singlet T=0 channel and isospin-triplet T=1 channel are essentially attractive, and the magnitudes in the two different channels are roughly the same. In neutron-rich nuclear matter, the isospin-splitting of the proton and neutron s.p. potentials turns out to be mainly determined by the isospin-singlet T=0 channel contribution which becomes more attractive for the proton and more repulsive for the neutron at higher asymmetries.
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ZUO Wei and GAN Sheng-Xin. Single particle potentials of asymmetric nuclear matter in different spin-isospin channels[J]. Chinese Physics C, 2012, 36(10): 967-972. doi: 10.1088/1674-1137/36/10/009
ZUO Wei and GAN Sheng-Xin. Single particle potentials of asymmetric nuclear matter in different spin-isospin channels[J]. Chinese Physics C, 2012, 36(10): 967-972.  doi: 10.1088/1674-1137/36/10/009 shu
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Received: 2012-01-09
Revised: 1900-01-01
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Single particle potentials of asymmetric nuclear matter in different spin-isospin channels

    Corresponding author: ZUO Wei,

Abstract: We investigate the neutron and proton single particle (s.p.) potentials of asymmetric nuclear matter and their isospin dependence in various spin-isospin ST channels within the framework of the Brueckner-Hartree-Fock approach. It is shown that in symmetric nuclear matter, the s.p. potentials in both the isospin-singlet T=0 channel and isospin-triplet T=1 channel are essentially attractive, and the magnitudes in the two different channels are roughly the same. In neutron-rich nuclear matter, the isospin-splitting of the proton and neutron s.p. potentials turns out to be mainly determined by the isospin-singlet T=0 channel contribution which becomes more attractive for the proton and more repulsive for the neutron at higher asymmetries.

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