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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
Li, QF; Li, ZX; Li, ZX , China Inst Atom Energy, POB 275 18, Beijing 102413, Peoples R China.
2002
发表期刊MODERN PHYSICS LETTERS A
ISSN0217-7323
卷号17期号:7页码:375-385
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.
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
关键词Asymmetric Nuclear-matter Heavy-ion Collisions Dynamics Equation State Model Mass
学科领域Physics
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收录类别SCI
WOS记录号WOS:000175481600001
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被引频次:10[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13572
专题理论物理所1978-2010年知识产出
通讯作者Li, ZX , China Inst Atom Energy, POB 275 18, Beijing 102413, Peoples R China.
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Li, QF,Li, ZX,Li, ZX , China Inst Atom Energy, POB 275 18, Beijing 102413, Peoples R China.. 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.
APA Li, QF,Li, ZX,&Li, ZX , China Inst Atom Energy, POB 275 18, Beijing 102413, Peoples R China..(2002).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.MODERN PHYSICS LETTERS A,17(7),375-385.
MLA Li, QF,et al."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".MODERN PHYSICS LETTERS A 17.7(2002):375-385.
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