System size and beam energy effects on probing the high-density behavior of nuclear symmetry energy with pion ratio

doi:10.1016/j.nuclphysa.2010.01.093

	System size and beam energy effects on probing the high-density behavior of nuclear symmetry energy with pion ratio
	Zhang, Ming 1; Xiao, Zhi-Gang 1; Li, Bao-An 2; Chen, Lie-Wen 3; Yong, Gao-Chen 2,4; Zhu, Shen-Jiang 1
	2010-03
卷号	834
期号	1-4
DOI	10.1016/j.nuclphysa.2010.01.093
页码	567C-570C
英文摘要	Based on the isospin-and momentum-dependent hadronic transport model IBUU04, we have investigated the pi(-)/pi(+) ratio in the following three reactions: (48)Ca+(48)Ca, (124)Sn +(124)Sn and (197)Au+(197)Au with nearly the same isospin asymmetry but different masses, at the bombarding energies from 0.25 to 0.6 A GeV. It is shown that the sensitivity of probing the E(sym) (rho) with pi(-)/pi(+) increases with increasing the system size or decreasing the beam energy, showing a correlation to the degree of isospin fractionation. Therefore, with a given isospin asymmetry, heavier system at energies near the pion threshold is preferential to study the behavior Of nuclear symmetry energy at supra-saturation densities.
会议录	NUCLEAR PHYSICS A
会议录出版者	ELSEVIER SCIENCE BV
会议录出版地	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
语种	英语
WOS研究方向	Physics
WOS记录号	WOS:000275930800145
内容类型	会议论文
源URL	[http://119.78.100.186/handle/113462/57364]
专题	中国科学院近代物理研究所
通讯作者	Zhang, Ming
作者单位	1.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China 2.Texas A&M Univ, Dept Phys & Astron, Commerce, TX 75429 USA 3.Shanghai Jiao Tong Univ, Inst Theoret Phys, Shanghai 200240, Peoples R China 4.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Ming,Xiao, Zhi-Gang,Li, Bao-An,et al. System size and beam energy effects on probing the high-density behavior of nuclear symmetry energy with pion ratio[C]. 见:.