Influence of the time-step on the production of free nucleons and pions from heavy-ion collisions around 1 GeV/nucleon

doi:10.1007/s11433-016-0358-y

	Influence of the time-step on the production of free nucleons and pions from heavy-ion collisions around 1 GeV/nucleon
	Zou, LiYan 1,2; Li, Miao 1,2; Guo, ChenChen 3; Wang, YongJia 1; Li, QingFeng 1,4; Liu, Ling 2
刊名	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2016-12-01
卷号	59 页码:7
关键词	UrQMD model symmetry energy at supranormal densities mean-field potential updates
ISSN号	1674-7348
DOI	10.1007/s11433-016-0358-y
英文摘要	By considering different values of the time-step for the potential updates in the ultra-relativistic quantum molecular dynamics (UrQMD) model, we examine its influence on observables, such as the yield and collective flow of nucleons and pions from heavy-ion collisions around 1 GeV/nucleon. It is found that these observables are affected to some extent by the choice of the time-step, and the impact of the time-step on the pion-related observables is more visible than that on the nucleon-related ones. However, its effect on the pi(-)/pi(+) yield ratio and elliptic flow difference between neutrons and protons, which have been taken as sensitive observables for probing the density-dependent nuclear symmetry energy at high densities, is fairly weak.
资助项目	National Natural Science Foundation of China[11505057] ; National Natural Science Foundation of China[11547312] ; National Natural Science Foundation of China[11375062] ; National Natural Science Foundation of China[11605270] ; Department of Education of Zhejiang Province[Y201533176] ; China Postdoctoral Special Science Foundation[2016M591730]
WOS关键词	QUANTUM MOLECULAR-DYNAMICS ; SYMMETRY ENERGY ; MICROSCOPIC MODELS ; BALANCE ENERGY ; NEUTRON-STARS ; CONSTRAINTS ; EQUATION ; STATE
WOS研究方向	Physics
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000387031200005
资助机构	National Natural Science Foundation of China ; Department of Education of Zhejiang Province ; China Postdoctoral Special Science Foundation
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/43585]
专题	中国科学院近代物理研究所
通讯作者	Wang, YongJia; Li, QingFeng
作者单位	1.Huzhou Univ, Sch Sci, Huzhou 313000, Peoples R China 2.Shenyang Normal Univ, Coll Phys Sci & Technol, Shenyang 110034, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China 4.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Zou, LiYan,Li, Miao,Guo, ChenChen,et al. Influence of the time-step on the production of free nucleons and pions from heavy-ion collisions around 1 GeV/nucleon[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2016,59:7.
APA	Zou, LiYan,Li, Miao,Guo, ChenChen,Wang, YongJia,Li, QingFeng,&Liu, Ling.(2016).Influence of the time-step on the production of free nucleons and pions from heavy-ion collisions around 1 GeV/nucleon.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,59,7.
MLA	Zou, LiYan,et al."Influence of the time-step on the production of free nucleons and pions from heavy-ion collisions around 1 GeV/nucleon".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 59(2016):7.