Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach (Ⅵ)Proton and Neutron Mean Free Paths and Their Isospin Dependence

ZUO Wei; LIU Jian-Ye; LI Jun-Qing

Chinese Physics C> 2003, Vol. 27> Issue(10) : 888-891

Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach (Ⅵ)Proton and Neutron Mean Free Paths and Their Isospin Dependence

Institute of Modern Physics,CAS,Lanzhou 730000,China2 INFN-LNS,44 Via S.Sofia,1-95123 Catania,Italy

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Within the isospin dependent extended Brueckner-Hartree-Fock framework, the proton and neutron mean free paths in isospin asymmetric nuclear matter and their isospin denpendence have been investigated. It is shown that as increasing the isospin asymmetry, the proton mean free path decreases while the neutron one increases. This implies that the surface of a neutron-rich nuclei near drip-line will be much more transparent for neutrons than for protons. The density dependence of the mean free paths and the effect of the ground-state correlations on the mean free paths have also been discussed.

References

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ZUO Wei, LIU Jian-Ye and LI Jun-Qing. Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach (Ⅵ)Proton and Neutron Mean Free Paths and Their Isospin Dependence[J]. Chinese Physics C, 2003, 27(10): 888-891.

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Received: 2002-12-20
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach (Ⅵ)Proton and Neutron Mean Free Paths and Their Isospin Dependence

Corresponding author: ZUO Wei,

Institute of Modern Physics,CAS,Lanzhou 730000,China2 INFN-LNS,44 Via S.Sofia,1-95123 Catania,Italy

Received Date: 2002-12-20

Accepted Date: 1900-01-01

Available Online: 2003-10-05

Abstract: Within the isospin dependent extended Brueckner-Hartree-Fock framework, the proton and neutron mean free paths in isospin asymmetric nuclear matter and their isospin denpendence have been investigated. It is shown that as increasing the isospin asymmetry, the proton mean free path decreases while the neutron one increases. This implies that the surface of a neutron-rich nuclei near drip-line will be much more transparent for neutrons than for protons. The density dependence of the mean free paths and the effect of the ground-state correlations on the mean free paths have also been discussed.

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Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach (Ⅵ)Proton and Neutron Mean Free Paths and Their Isospin Dependence

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