Entrance channel dependence of the correlation function of IMFs in Ar-36+Sn-112,Sn-124 at 35MeV/u
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3917
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| Resumo |
The reduced velocity correlation functions of the Intermediate Mass Fragments (IMFs) were measured in the reactions of Ar-36+ Sn-112,Sn-124 at 35MeV/u. The anti-correlation at small reduced velocities is more pronounced in Ar-36+ Sn-124 system than that in Ar-36+ Sn-112 system. The difference of the correlation functions between the two reactions is mainly contributed by the particle pairs with high momenta. A three-body Coulomb repulsive trajectory code (MENEKA) is employed to calculate the emission time scale of IMFs for-the both systems. The time scale is 150fm/c in the Ar-36+ Sn-112 system and 120fm/c in the Ar-36+ Sn-124 system, respectively. A calculation based on an Isospin dependence Quantum Molecular Dynamics code (IQMD) reveals that the emission time spectrum of IMFs is shifted slightly leftwards in Ar-36+ Sn-124 compared with that in the Ar-16+ Sn-112 system, indicating a shorter emission time scale. Correspondingly, the central density of the hot nuclei decreases faster in Ar-36+ Sn-124 than in Ar-36+ Sn-112 |
| Identificador | |
| Idioma(s) |
中文 |
| Fonte |
Hu, RJ (Hu Rong-Jiang); Xiao, ZG (Xiao Zhi-Gang); Wu, HY (Wu He-Yu); Duan, LM (Duan Li-Min); Wang, HW (Wang Hong-Wei); Yuan, XH (Yuan Xiao-Hua); Jin, GM (Jin Gen-Ming); Zhu, YT (Zhu Yong-Tai); Li, ZY (Li Zu-Yu); Wang, SF (Wang Su-Fang); Xu, HS (Xu Hu-Shan); Zhang, BG (Zhang Bao-Guo); Wei, ZY (Wei Zhi-Yong); Feng, ZQ (Feng Zhao-Qing); Fu, F (Fu Fen) 标题: Entrance channel dependence of the correlation function of IMFs in Ar-36+Sn-112,Sn-124 at 35MeV/u .Entrance channel dependence of the correlation function of IMFs in Ar-36+Sn-112,Sn-124 at 35MeV/u,HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION ,39173,31(4):350-356 APR 2007 |
| Palavras-Chave | #intermediate mass fragment #correlation function #emission time scale #isospin |
| Tipo |
期刊论文 |
