Effects of in-medium nucleon-nucleon cross sections on stopping observable and ratio of free protons in heavy-ion collisions at 400 MeV/nucleon

doi:10.1140/epja/i2016-16207-x

	Effects of in-medium nucleon-nucleon cross sections on stopping observable and ratio of free protons in heavy-ion collisions at 400 MeV/nucleon
	Su, Jun 1; Huang, Ching-Yuan 1; Xie, Wen-Jie 2,3; Zhang, Feng-Shou 4,5,6
刊名	EUROPEAN PHYSICAL JOURNAL A
	2016-07-27
卷号	52 页码:10
ISSN号	1434-6001
DOI	10.1140/epja/i2016-16207-x
英文摘要	The effects of in-medium nucleon-nucleon cross sections on the stopping observable and ratio of free protons in heavy-ion collisions at 400 MeV/nucleon have been investigated within the framework of the IQMD+GEMINI model. Five kinds of in-medium corrections of nucleon-nucleon cross sections, which are considerably different in the referred energy and density, have been used in the model. It has been found that calculations of the stopping decrease when the in-medium cross sections decrease. Moreover, the ratio of free protons R-p depends not only on the value of the in-medium factors but also on its isospin dependence. In order to investigate the isospin effect of in-medium factors on the ratio of free protons R-p, the isospin dependence of in-medium factors has been adjusted and used in the model. The calculations have shown that the isospin dependence of in-medium factors does not impact the stopping, but impacts the ratio of free protons R-p. When the in-medium factors relation f(nn)(med) > f(pp)(med) is used in the model, the calculated values of R-p are larger than those in the f(nn)(med) > f(pp)(med) case.
资助项目	National Natural Science Foundation of China[11405278] ; National Natural Science Foundation of China[11505150] ; National Natural Science Foundation of China[11025524] ; National Natural Science Foundation of China[11161130520] ; National Basic Research Program of China[2010CB832903] ; Fundamental Research Funds for the Central Universities[15lgpy30] ; Major State Basic Research Development Program in China[2015CB856903] ; European Commissions 7th Framework Programme (Fp7-PEOPLE-IRSES)[269131]
WOS关键词	ISOSPIN EQUILIBRATION ; MASS DEPENDENCE ; FLOW ; ENERGY ; DISAPPEARANCE ; EQUATION ; FRAGMENT ; MOMENTUM ; SYSTEMATICS ; PHYSICS
WOS研究方向	Physics
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000391618300001
资助机构	National Natural Science Foundation of China ; National Basic Research Program of China ; Fundamental Research Funds for the Central Universities ; Major State Basic Research Development Program in China ; European Commissions 7th Framework Programme (Fp7-PEOPLE-IRSES)
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/44079]
专题	中国科学院近代物理研究所
通讯作者	Su, Jun
作者单位	1.Sun Yat Sen Univ, Sinofrench Inst Nucl Engn & Technol, Zhuhai 519082, Peoples R China 2.Yuncheng Univ, Dept Phys, Yuncheng 044000, Peoples R China 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 4.Beijing Normal Univ, Coll Nucl Sci & Technol, Minist Educ, Key Lab Beam Technol & Mat Modificat, Beijing 100875, Peoples R China 5.Beijing Radiat Ctr, Beijing 100875, Peoples R China 6.Ctr Theoret Nucl Phys, Natl Lab Heavy Ion Accelerator Lanzhou, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Su, Jun,Huang, Ching-Yuan,Xie, Wen-Jie,et al. Effects of in-medium nucleon-nucleon cross sections on stopping observable and ratio of free protons in heavy-ion collisions at 400 MeV/nucleon[J]. EUROPEAN PHYSICAL JOURNAL A,2016,52:10.
APA	Su, Jun,Huang, Ching-Yuan,Xie, Wen-Jie,&Zhang, Feng-Shou.(2016).Effects of in-medium nucleon-nucleon cross sections on stopping observable and ratio of free protons in heavy-ion collisions at 400 MeV/nucleon.EUROPEAN PHYSICAL JOURNAL A,52,10.
MLA	Su, Jun,et al."Effects of in-medium nucleon-nucleon cross sections on stopping observable and ratio of free protons in heavy-ion collisions at 400 MeV/nucleon".EUROPEAN PHYSICAL JOURNAL A 52(2016):10.