Probing the isospin dependent in-medium nucleon–nucleon cross section by nucleon emissions

The effects of the symmetry potential and the isospin dependent in-medium nucleon–nucleon ( NN) cross section on the number of proton(neutron) emissions N p ( N n ) are studied respectively within an isospin-dependent quantum molecular dynamics (IQMD) model. The isospin dependent in-medium NN cross...

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Bibliographic Details
Published in:Physics letters. B 2002-08, Vol.540 (3), p.213-219
Main Authors: Liu, Jian-Ye, Guo, Wen-Jun, Xing, Yong-Zhong, Zuo, Wei, Lee, Xi-Guo, Li, Zeng-Hua
Format: Article
Language:English
Subjects:
Isospin effect
Nucleon emission
Nucleon–nucleon cross section
Symmetry potential
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Summary:The effects of the symmetry potential and the isospin dependent in-medium nucleon–nucleon ( NN) cross section on the number of proton(neutron) emissions N p ( N n ) are studied respectively within an isospin-dependent quantum molecular dynamics (IQMD) model. The isospin dependent in-medium NN cross section is found to have a strong influence on N p ( N n ) but N p ( N n ) is not sensitive to the symmetry potential for the neutron-deficient colliding system at relatively high energies. We propose to make use of the N p ( N n ) as a probe to extract information on the isospin dependent in-medium NN cross section.
ISSN:0370-2693
1873-2445
DOI:10.1016/S0370-2693(02)02174-3