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Probing the density dependence of the symmetry energy with central heavy ion collisions

文献类型：期刊论文

作者Xie Wenjie1,2,3; Zhang Fengshou1,2,4
刊名NUCLEAR SCIENCE AND TECHNIQUES
出版日期2013-10
卷号24
关键词Improved isospin dependent Boltzmann-Langevin model Nuclear symmetry energy Neutron over proton ratio Pion production
ISSN号1001-8042
英文摘要An improved isospin dependent Boltzmann Langevin model, in which the inelastic channels and momentum dependent interactions are incorporated, is used to investigate the high-density behavior of nuclear symmetry energy. By taking several forms of nuclear symmetry energy, we calculate the time evolutions of neutron over proton ratio, pi multiplicity and pi(-)/pi(+) ratio, and the kinetic energy and transverse momentum spectra of pi(-)/pi(+) ratio in the heavy ion collisions at 400A MeV. It is found that the neutron over proton ratio and pi(-)/pi(+) ratio are very sensitive to the nuclear symmetry energy, and the pi(-) is more sensitive to the nuclear symmetry energy than the pi(+). A supersoft symmetry energy results in a larger pi(-)/pi(+) ratio.
WOS关键词BOLTZMANN-LANGEVIN APPROACH ; NEUTRON/PROTON RATIO ; NUCLEAR COLLISIONS ; EQUATION ; EMISSION ; DYNAMICS ; STATE
资助项目National Basic Research Program of China[2010CB832903]
WOS研究方向Nuclear Science & Technology ; Physics
语种英语
WOS记录号WOS:000329686400003
出版者ELSEVIER SCIENCE BV
源URL[http://119.78.100.186/handle/113462/57089]  
专题中国科学院近代物理研究所
通讯作者Zhang Fengshou
作者单位1.Beijing Normal Univ, Coll Nucl Sci & Technol, Minist Educ, Key Lab Beam Technol & Mat Modificat, Beijing 100875, Peoples R China
2.Beijing Radiat Ctr, Beijing 100875, Peoples R China
3.Yuncheng Univ, Dept Phys, Yuncheng 044000, Peoples R China
4.Natl Lab Heavy Ion Accelerator Lanzhou, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714		 Xie Wenjie,Zhang Fengshou. Probing the density dependence of the symmetry energy with central heavy ion collisions[J]. NUCLEAR SCIENCE AND TECHNIQUES,2013,24.
APA Xie Wenjie,&Zhang Fengshou.(2013).Probing the density dependence of the symmetry energy with central heavy ion collisions.NUCLEAR SCIENCE AND TECHNIQUES,24.
MLA Xie Wenjie,et al."Probing the density dependence of the symmetry energy with central heavy ion collisions".NUCLEAR SCIENCE AND TECHNIQUES 24(2013).

入库方式： OAI收割

来源：近代物理研究所

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