Entropy produced in 35MeV/u Ar-40+Au-197 heavy ion reactions
文献类型：期刊论文
| 作者 | Duan, LM ; Wei, ZY; Wu, HY; Jin, GM; Li, ZY; Zhu, YT; Xi, HF; Shen, WQ; Xiao, ZG; Wang, HW
|
| 刊名 | ACTA PHYSICA SINICA
 |
| 出版日期 | 2001-04-01 |
| 卷号 | 50期号:4页码:649-654 |
| 关键词 | entropy reduced yield of deuterons Nuclear temperature statistical emission |
| ISSN号 | 1000-3290 |
| 英文摘要 | Light charged particles emitted from the reactions of 35MeV/u Ar-40 + Au-197 are measured experimentally. A new observable, R = d/(d + t + He-3 + He-4), which is defined as the reduced yield of deuterons, has a monotone relation with the entropy and it is independent of the breakup density (rho/rho (0)) and N/Z of the system. The entropy values are extracted by using several methods which use the d/p ratios, d(like)/p(like) ratios, reduced yield of isotope deuterons R and the reduced multiplicity of charged particles M-red, respectively. The entropy values from the reduced yield of isotope deuterons R and the reduced multiplicity of charged particles Mred are nearly the same. These 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 +/- 1.2MeV, which are extracted from the double isotope yields ratios, and entropy S/A = 2.5 +/- 0.5. This implies that the Break-up density is slightly less than 0.1(rho/rho (0)). |
| WOS关键词 | COLLISIONS |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000167947700013 |
| 出版者 | CHINESE PHYSICAL SOC |
| 公开日期 | 2010-10-29 |
| 源URL | [http://ir.imp.cas.cn/handle/113462/1879]  |
| 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 | Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Duan, LM,Wei, ZY,Wu, HY,et al. Entropy produced in 35MeV/u Ar-40+Au-197 heavy ion reactions[J]. ACTA PHYSICA SINICA,2001,50(4):649-654. |
| APA | Duan, LM.,Wei, ZY.,Wu, HY.,Jin, GM.,Li, ZY.,...&Hu, RJ.(2001).Entropy produced in 35MeV/u Ar-40+Au-197 heavy ion reactions.ACTA PHYSICA SINICA,50(4),649-654. |
| MLA | Duan, LM,et al."Entropy produced in 35MeV/u Ar-40+Au-197 heavy ion reactions".ACTA PHYSICA SINICA 50.4(2001):649-654. |
入库方式： OAI收割
来源：近代物理研究所
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