Probing neutron-proton effective mass splitting using nuclear stopping and isospin mix in heavy-ion collisions in GeV energy region
Probing neutron-proton effective mass splitting using nuclear stopping and isospin mix in heavy-ion collisions in GeV energy region
- 核技术（英文版） 2020年31卷第8期 文章编号：77
- Affiliations：
1.Department of Electronic Information and Physics, Changzhi University, Changzhi 046011, China
2.Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
- Author bio：
Corresponding author, zhangfan@mail.bnu.edu.cn
- Funds：National Natural Science Foundation of China;Scientific and Technological Innovation Programs of Higher Education Institutions of Shanxi Province, China
DOI：10.1007/s41365-020-00787-6
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Fan Zhang, Jun Su. Probing neutron-proton effective mass splitting using nuclear stopping and isospin mix in heavy-ion collisions in GeV energy region[J]. 核技术（英文版）, 2020,31(8):77
Fan Zhang, Jun Su. Probing neutron-proton effective mass splitting using nuclear stopping and isospin mix in heavy-ion collisions in GeV energy region[J]. Nuclear Science and Techniques, 2020,31(8):77
Fan Zhang, Jun Su. Probing neutron-proton effective mass splitting using nuclear stopping and isospin mix in heavy-ion collisions in GeV energy region[J]. 核技术（英文版）, 2020,31(8):77 DOI： 10.1007/s41365-020-00787-6.
Fan Zhang, Jun Su. Probing neutron-proton effective mass splitting using nuclear stopping and isospin mix in heavy-ion collisions in GeV energy region[J]. Nuclear Science and Techniques, 2020,31(8):77 DOI： 10.1007/s41365-020-00787-6.
摘要
Abstract
The ramifications of the effective mass splitting on the nuclear stopping and isospin tracer during heavy-ion collisions within the gigaelectron volt energy region are studied using an isospin-dependent quantum molecular dynamics model. Three isotope probes, i.e., a proton, deuteron, and triton, are used to calculate the nuclear stopping. Compared to the,, case, the ,, parameter results in a stronger stopping for protons but a weaker stopping for tritons. The calculations of the isospin tracer show that the ,, parameter results in a higher isospin mix than the ,, parameter. The rapidity and impact parameter dependences of the isospin tracer are also studied. A constraining of the effective mass splitting using the free nucleons with high rapidity and in a central rather than peripheral collision is suggested.
关键词
Keywords
Neutron-proton effective mass splittingNuclear stoppingIsospin mix
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