The correlation functions and emission time scales for light particles and light fragments in Ar-40+Au-197 reactions 25 MeV/nucleon
文献类型：期刊论文
| 作者 | He, ZY; Duan, LM; Jin, GM; Li, ZY; Wu, HY; Zhang, BG; Wen, WX; Qi, YJ; Luo, QZ; Dai, GX |
| 刊名 | NUCLEAR PHYSICS A
 |
| 出版日期 | 1997-07-07 |
| 卷号 | 620页码:214-228 |
| 关键词 | Au-197(Ar-40,X) E=25 MeV/nucleon measured light charged particles intermediate mass fragments correlation functions deduced mean emission time temperature |
| ISSN号 | 0375-9474 |
| 英文摘要 | Two-particle correlation functions were measured for the emission of protons, deuterons, tritons, alpha, and lithium fragment at small relative momenta in Ar-40-induced reactions on Au-197 at 25 MeV/nucleon. Based on three-body trajectory calculations the emission time scales for the particles were extracted from p-d, d-d, t-t, and lithium-lithium correlation functions. The mean emission time was found to decrease with increasing sum of the kinetic energies of the particle in a correlated pairs, indicating the emission of more energetic particles at earlier stages of the reaction than at later stages. The time scale for the emission of lithium fragments emission suggests that sequential binary disassembly occurs in Ar-40+Au-197 reaction at MeV/nucleon. Mean emission temperature of 3.5(-0.8)(+1.3) and 3.6 +/- 0.4 MeV were also extracted from the relative populations of the excited and ground states of the respective emitted nuclides Be-8 and He-4. (C) 1997 Elsevier Science B.V. |
| WOS关键词 | HEAVY-ION REACTIONS ; INTERMEDIATE-MASS FRAGMENTS ; EXCITED-STATE POPULATIONS ; AR-36+AU-197 COLLISIONS ; EXCITATION-ENERGY ; 2-PARTICLE CORRELATIONS ; COMPOSITE NUCLEI ; UNBOUND STATES ; HOT NUCLEI ; TEMPERATURES |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:A1997XK48900005 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://119.78.100.186/handle/113462/46826]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | He, ZY |
| 作者单位 | CHINESE ACAD SCI,INST MODERN PHYS,POB 31,LANZHOU 730000,PEOPLES R CHINA |
| 推荐引用方式 GB/T 7714 | He, ZY,Duan, LM,Jin, GM,et al. The correlation functions and emission time scales for light particles and light fragments in Ar-40+Au-197 reactions 25 MeV/nucleon[J]. NUCLEAR PHYSICS A,1997,620:214-228. |
| APA | He, ZY.,Duan, LM.,Jin, GM.,Li, ZY.,Wu, HY.,...&Dai, GX.(1997).The correlation functions and emission time scales for light particles and light fragments in Ar-40+Au-197 reactions 25 MeV/nucleon.NUCLEAR PHYSICS A,620,214-228. |
| MLA | He, ZY,et al."The correlation functions and emission time scales for light particles and light fragments in Ar-40+Au-197 reactions 25 MeV/nucleon".NUCLEAR PHYSICS A 620(1997):214-228. |
入库方式： OAI收割
来源：近代物理研究所
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