Freeze - Out density of the 35MeV/u <sup>40</sup> Ar + <sup>197</sup> Au reaction

	Freeze - Out density of the 35MeV/u ⁴⁰ Ar + ¹⁹⁷ Au reaction
	Wei, Zhi-Yong ; Duan, Li-Min; Jin, Gen-Ming ; Wu, He-Yu ; Li, Zu-Yu ; Shen, Wen-Qing ; Xi, Hong-Fei ; Zhu, Yong-Tai ; Zhang, Bao-Guo ; Wang, Hong-Wei
刊名	Kao Neng Wu Li Yu Ho Wu Li/High Energy Physics and Nuclear Physics
	2001
卷号	25 页码:843-844
ISSN号	0254-3052
英文摘要	Light charged particles emitted from the reactions of 35MeV/u⁴⁰ 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 0.1ρ₀ .
出版者	Science Press
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/64330]
专题	中国科学院近代物理研究所
作者单位	1.Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China 2.Institute of Nuclear Research, Chinese Academy of Sciences, Shanghai, 201800, China
推荐引用方式 GB/T 7714	Wei, Zhi-Yong,Duan, Li-Min,Jin, Gen-Ming,et al. Freeze - Out density of the 35MeV/u ⁴⁰ Ar + ¹⁹⁷ Au reaction[J]. Kao Neng Wu Li Yu Ho Wu Li/High Energy Physics and Nuclear Physics,2001,25:843-844.
APA	Wei, Zhi-Yong.,Duan, Li-Min.,Jin, Gen-Ming.,Wu, He-Yu.,Li, Zu-Yu.,...&Hu, Rong-Jiang.(2001).Freeze - Out density of the 35MeV/u ⁴⁰ Ar + ¹⁹⁷ Au reaction.Kao Neng Wu Li Yu Ho Wu Li/High Energy Physics and Nuclear Physics,25,843-844.
MLA	Wei, Zhi-Yong,et al."Freeze - Out density of the 35MeV/u ⁴⁰ Ar + ¹⁹⁷ Au reaction".Kao Neng Wu Li Yu Ho Wu Li/High Energy Physics and Nuclear Physics 25(2001):843-844.