中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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
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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