| Single particle potentials of asymmetric nuclear matter in different spin-isospin channels |
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| 作者姓名： | 左维 甘胜鑫 U. Lombardo |
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| 作者单位： | 1. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;;2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China;;3. Department of Physics and Astrophysics, Catania University, Via Santa Sofia 64, I-95123, Italy |
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| 基金项目： | Supported by National Natural Science Foundation of China (11175219, 10875151, 10740420550);Major State Basic Research Developing Program of China (2007CB815004);Knowledge Innovation Project of Chinese Academy of Sciences (KJCX2-EW-N01);Chinese Academy of Sciences Visiting Professorship for Senior International Scientists (2009J2-26);CAS/SAFEA International Partnership Program for Creative Research Teams (CXTD-J2005-1) |
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| 摘 要： | 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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| 关 键 词： | single particle potential asymmetric nuclear matter contribution from various spin-isospin channels symmetry potential Brueckner-Hartree-Fock approach |
| 收稿时间： | 2012-1-9 |
Single particle potentials of asymmetric nuclear matter in different spin-isospin channels |
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| Institution: | ZUO Wei 1,2;1) GAN Sheng-Xin 1,2 U. Lombardo 3 1 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China 2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China 3 Department of Physics and Astrophysics, Catania University, Via Santa Sofia 64, I-95123, Italy |
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