Pion production and absorption in heavy-ion collisions

doi:10.1103/PhysRevC.104.044607

	Pion production and absorption in heavy-ion collisions
	Gao, Yuan 1,2; Guo, Yu-Lin 2; Zhang, Lei 2; Yong, Gao-Chan 1,3; Liu, Zi-Yu 4; Zuo, Wei 1,3
刊名	PHYSICAL REVIEW C
	2021-10-08
卷号	104 期号:4 页码:6
ISSN号	2469-9985
DOI	10.1103/PhysRevC.104.044607
通讯作者	Gao, Yuan(gaoyuan@impcas.ac.cn)
英文摘要	Based on the isospin-dependent Boltzmann-Uehling-Uhlenbeck (IBUU) transport model, pion production and absorption are thoroughly studied in the central collision of Au + Au at a beam energy of 400 MeV/nucleon. It is found that the pions are first produced by hard Delta decay at an average density around 1.75.0, while about 18% of them are absorbed absolutely in the subsequent inelastic collisions. For the free pions observed, more than half of them have been scattered one or more times before they are free from matter, and the higher the scattering numbers of pions, the higher the kinetic energies they possess. These pions, due to longer time of their existence in high density nuclear matter, carry more information about the symmetry energy of nuclear matter at high densities. Moreover, the azimuth dependence and the kinetic energy dependence of the scattering processes and the effect of the symmetry energy are also investigated.
资助项目	National Natural Science Foundation of China[11875013] ; National Natural Science Foundation of China[11775275] ; National Natural Science Foundation of China[11975282] ; National Natural Science Foundation of China[11705041] ; Shaanxi Provincial Education Department[14JK1794]
WOS关键词	SYMMETRY ENERGY ; NUCLEAR-EQUATION ; ISOSPIN PHYSICS ; DYNAMICS ; FLOW ; DEPENDENCE ; MODELS ; STATE
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000705628100003
资助机构	National Natural Science Foundation of China ; Shaanxi Provincial Education Department
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/136171]
专题	中国科学院近代物理研究所
通讯作者	Gao, Yuan
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Hangzhou Dianzi Univ, Sch Informat Engn, Hangzhou 310018, Peoples R China 3.Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China 4.Xianyang Normal Univ, Coll Phys & Elect Engn, Xianyang 712000, Peoples R China
推荐引用方式 GB/T 7714	Gao, Yuan,Guo, Yu-Lin,Zhang, Lei,et al. Pion production and absorption in heavy-ion collisions[J]. PHYSICAL REVIEW C,2021,104(4):6.
APA	Gao, Yuan,Guo, Yu-Lin,Zhang, Lei,Yong, Gao-Chan,Liu, Zi-Yu,&Zuo, Wei.(2021).Pion production and absorption in heavy-ion collisions.PHYSICAL REVIEW C,104(4),6.
MLA	Gao, Yuan,et al."Pion production and absorption in heavy-ion collisions".PHYSICAL REVIEW C 104.4(2021):6.