Symmetry energy extracted from the S pi RIT pion data in Sn plus Sn systems

doi:10.1103/PhysRevC.104.014613

	Symmetry energy extracted from the S pi RIT pion data in Sn plus Sn systems
	Yong, Gao-Chan 1,2
刊名	PHYSICAL REVIEW C
	2021-07-19
卷号	104 期号:1 页码:6
ISSN号	2469-9985
DOI	10.1103/PhysRevC.104.014613
通讯作者	Yong, Gao-Chan()
英文摘要	With the improved particular isospin-dependent Boltzmann-Uehling-Uhlenbeck transport model including the nucleon-nucleon short-range correlations, the ratios and yields of pi(-) and pi(+) in Sn + Sn systems with different asymmetries at 270 MeV/nucleon are studied. It is found that the yields of pi(-) and pi(+) and their ratios in Sn + Sn systems characterized by different neutron to proton ratios obtained from very recent SnRIT pion data are quite well described by the model, especially when a soft symmetry energy with L(rho(0)) = 66.75 +/- 24.75 MeV is used. The calculations also clearly demonstrate that the high-momentum tail of the nucleon initialization in momentum space strongly affects the yields and ratios of pion production in Sn + Sn systems with different asymmetries near or below threshold. In addition, given many insoluble theoretical uncertainties in transport models, multisystem experimental measurements with various N/Z asymmetries are proposed to extract the symmetry energy less model dependently by using heavy-ion collisions.
资助项目	National Natural Science Foundation of China[11775275]
WOS关键词	HEAVY-ION COLLISIONS ; DELTA-HOLE MODEL ; NUCLEAR ; EQUATION ; MOMENTUM ; PHYSICS ; STATE
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000674546900002
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/136803]
专题	中国科学院近代物理研究所
通讯作者	Yong, Gao-Chan
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yong, Gao-Chan. Symmetry energy extracted from the S pi RIT pion data in Sn plus Sn systems[J]. PHYSICAL REVIEW C,2021,104(1):6.
APA	Yong, Gao-Chan.(2021).Symmetry energy extracted from the S pi RIT pion data in Sn plus Sn systems.PHYSICAL REVIEW C,104(1),6.
MLA	Yong, Gao-Chan."Symmetry energy extracted from the S pi RIT pion data in Sn plus Sn systems".PHYSICAL REVIEW C 104.1(2021):6.