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题名: The isospin distribution of fragments in reactions Ru-96+Ru-96, Ru-96+Zr-96, Zr-96+Ru-96, and Zr-96+Zr-96 at beam energy 400 AMeV
作者: Li, QF ;  Li, ZX
刊名: MODERN PHYSICS LETTERS A
出版日期: 2002
卷号: 17, 期号:7, 页码:375-385
关键词: ASYMMETRIC NUCLEAR-MATTER ;  HEAVY-ION COLLISIONS ;  DYNAMICS ;  EQUATION ;  STATE ;  MODEL ;  MASS
学科分类: Physics
通讯作者: Li, ZX , China Inst Atom Energy, POB 275 18, Beijing 102413, Peoples R China.
部门归属: China Inst Atom Energy, Beijing 102413, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China; Natl Lab Lanzhou Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China
英文摘要: The isospin distribution of particles and fragments in collisions Ru-96 + Ru-96, Ru-96 Zr-96, Zr-96 + Ru-96 and Zr-96 + Zr-96 at beam energy 400 AMeV is studied with isospin-dependent QMD model. We find that the rapidity distribution of differential neutron-proton counting in neutron rich nucleus-nucleus collisions at intermediate energies is sensitive to the isospin-dependent part of nuclear potential. The study of the N/Z ratio of nucleons, light charged particles (LCP) and intermediate mass fragments (IMF) shows that the isospin-dependent part of nuclear potential drives IMF to be more isospin symmetric and emitted nucleons to be more neutron rich. From the study of the time evolution of the isospin distribution in emitted nucleons, LCP and IMF we find that neutrons diffuse much faster than protons at the beginning and the final isospin distribution is a result of dynamical balance of symmetry potential and Coulomb force under the charge conservation.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000175481600001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13572
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Li, QF,Li, ZX. The isospin distribution of fragments in reactions Ru-96+Ru-96, Ru-96+Zr-96, Zr-96+Ru-96, and Zr-96+Zr-96 at beam energy 400 AMeV[J]. MODERN PHYSICS LETTERS A,2002,17(7):375-385.
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文件名: The isospin distribution of fragments in reactions Ru-96+Ru-96, Ru-96+Zr-96, Zr-96+Ru-96, and Zr-96+Zr-96 at beam energy 400 AMeV.pdf
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