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Nucleon effective mass splitting and density-dependent symmetry energy effects on elliptic flow in heavy ion collisions at E-lab=0.09 similar to 1.5 GeV/nucleon*

文献类型：期刊论文

作者Tong, Luyao1,2; Li, Pengcheng2,3; Li, Fupeng1,2; Wang, Yongjia2; Li, Qingfeng2,4; Liu, Fanxin1
刊名CHINESE PHYSICS C
出版日期2020-07-01
卷号44期号:7页码:8
关键词nuclear symmetry energy heavy ion collision elliptic flow
ISSN号1674-1137
DOI10.1088/1674-1137/44/7/074103
通讯作者Wang, Yongjia(wangyongjia@zjhu.edu.cn)
英文摘要By incorporating an isospin-dependent form of the momentum-dependent potential in the ultra-relativistic quantum molecular dynamics (UrQMD) model, we systematically investigate effects of the neutron-proton effective mass splitting P and the density -dependent nuclear symmetry energy Esym(p) on the elliptic flow v2 in 197Au + 197Au collisions at beam energies from 0.09 to 1.5 GeV/nucleon. It is found that at higher beam energies (> 0.25 GeV/nucleon) with the approximately 75 MeV difference in slopes of the two different Esym(p), and the variation of mn*_,,, ranging from 0.03 to 0.03 at saturation density with isospin asymmetry 6 = (pn pp)Ip= 0.2, the Esym(p) has a stronger influence on the difference in v2 between neutrons and protons, i.e., v2 4, than mn*_,,, has. Meanwhile, at lower beam energies 0.25 GeV/nucleon), v2 V2 is sensitive to both the Esym(p) and the mi,*_r. Moreover, the influence of mn*_,,, on v2 -4 is more evident with the parameters of this study when using the soft, rather than stiff, symmetry energy.
WOS关键词QUANTUM MOLECULAR-DYNAMICS ; NEUTRON ; PROTON ; CONSTRAINTS ; EQUATION ; STATE
资助项目National Natural Science Foundation of China[11875125] ; National Natural Science Foundation of China[11947410] ; National Natural Science Foundation of China[11847315] ; National Natural Science Foundation of China[11505057] ; Zhejiang Provincial Natural Science Foundation of China[LY18A050002] ; Zhejiang Provincial Natural Science Foundation of China[LY19A050001] ; Ten Thousand Talent Program of Zhejiang province[2018R52017]
WOS研究方向Physics
语种英语
WOS记录号WOS:000549277200001
出版者IOP PUBLISHING LTD
资助机构National Natural Science Foundation of China ; Zhejiang Provincial Natural Science Foundation of China ; Ten Thousand Talent Program of Zhejiang province
源URL[http://119.78.100.186/handle/113462/140288]  
专题中国科学院近代物理研究所
通讯作者Wang, Yongjia
作者单位1.Zhejiang Univ Technol, Dept Phys, Hangzhou 310023, Peoples R China
2.Huzhou Univ, Sch Sci, Huzhou 313000, Peoples R China
3.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China
4.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714		 Tong, Luyao,Li, Pengcheng,Li, Fupeng,et al. Nucleon effective mass splitting and density-dependent symmetry energy effects on elliptic flow in heavy ion collisions at E-lab=0.09 similar to 1.5 GeV/nucleon*[J]. CHINESE PHYSICS C,2020,44(7):8.
APA Tong, Luyao,Li, Pengcheng,Li, Fupeng,Wang, Yongjia,Li, Qingfeng,&Liu, Fanxin.(2020).Nucleon effective mass splitting and density-dependent symmetry energy effects on elliptic flow in heavy ion collisions at E-lab=0.09 similar to 1.5 GeV/nucleon*.CHINESE PHYSICS C,44(7),8.
MLA Tong, Luyao,et al."Nucleon effective mass splitting and density-dependent symmetry energy effects on elliptic flow in heavy ion collisions at E-lab=0.09 similar to 1.5 GeV/nucleon*".CHINESE PHYSICS C 44.7(2020):8.

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来源：近代物理研究所

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