Freeze-out density of the 35MeV/u Ar-40+Au-197 reaction
文献类型:期刊论文
作者 | Hu, RJ; Wei, ZY; Duan, LM; Jin, GM; Wu, HY; Li, ZY; She, WQ; Xi, HF; Zhu, YT; Zhang, BG |
刊名 | HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
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出版日期 | 2001-09-01 |
卷号 | 25期号:9页码:839-844 |
关键词 | freeze - out density entropy nuclear temperature statical emission |
ISSN号 | 0254-3052 |
英文摘要 | Light charged particles emitted from the reactions of 35MeV/u(40) Ar + (197) Au have been measured. The slope nuclear temperature parameters and the isotope nuclear temperature parameters are extracted from the slope of energy spectra and double isotope yield ratios respectively, and on average, the slope temperatures are slightly larger than the isotope temperatures. The entropy values are extracted also with several methods by using the d/p ratios, d - like/p - like ratios, reduced yields of isotope d and the reduced multiplicities of charged particles M-red , respectively. The entropy values from the reduced yield of isotope d and the reduced multiplicity of charged particles M-red are nearly the same, and these two methods can be used in low beam energy heavy ion reactions. The charged particles emitted in rear angles are mainly from an equilibrium state source with temperature about (4.7 +/- 1.2) MeV and entropy S/A = 2.5 +/- 0.5, from which the Freeze - out density can be deduced. It is nearly but less than 0.1 rho (0). |
WOS关键词 | HEAVY-ION COLLISIONS ; ENTROPY PRODUCTION ; MULTIFRAGMENTATION ; TEMPERATURE ; EXTRACTION ; NUCLEI |
WOS研究方向 | Physics |
语种 | 英语 |
WOS记录号 | WOS:000171196800007 |
出版者 | SCIENCE PRESS |
公开日期 | 2010-10-29 |
源URL | [http://ir.imp.cas.cn/handle/113462/1469] ![]() |
专题 | 近代物理研究所_近代物理研究所知识存储(2010之前) |
通讯作者 | Wei, ZY |
作者单位 | 1.Chinese Acad Sci, Inst Nucl Res, Shanghai 201800, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
推荐引用方式 GB/T 7714 | Hu, RJ,Wei, ZY,Duan, LM,et al. Freeze-out density of the 35MeV/u Ar-40+Au-197 reaction[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2001,25(9):839-844. |
APA | Hu, RJ.,Wei, ZY.,Duan, LM.,Jin, GM.,Wu, HY.,...&Wang, SF.(2001).Freeze-out density of the 35MeV/u Ar-40+Au-197 reaction.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,25(9),839-844. |
MLA | Hu, RJ,et al."Freeze-out density of the 35MeV/u Ar-40+Au-197 reaction".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 25.9(2001):839-844. |
入库方式: OAI收割
来源:近代物理研究所
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