^(16)O+^(65)Cu反应的全熔合与非完全熔合  

Complete and Incomplete Fusion in the Reaction of ^(65)Cu With ^(16)O Ions

作　　者：李文新[1] 孙彤玉[1] 吴定清[1] 靳根明[1] 孙儒林 李云生 赵莉莉[1] 王素芳[1] 

机构地区：[1]中国科学院近代物理研究所,兰州730000

出　　处：《高能物理与核物理》1991年第4期329-335,共7页High Energy Physics and Nuclear Physics

摘　　要：在45—96MeV^(16)O和^(65)Cu反应中,用放射化学技术测量了反应余核的激发函数、角分布和微分射程分布。将实验数据和基于复合核统计蒸发模型的Monte-Carlo模拟计算进行了比较,指出重余核来自全熔合形成的复合核的衰变。提取了该系统的全熔合截面,得到的激发函数与理论计算结果相符合。非完全熔合或大质量转移是生成质量数接近靶质量余核的主要生成机制。The excitation functions, angular distributions and differential range distributions have been measured for target residues from the reaction of ^(65)Cu induced by 45--96 MeV ^(16)O ions with radiochemical techniques. A comparison of the experimental data with Monte-Carlo simulations based on the statistical model of compound nucleus indicates that the heavy resi- dues are produced by the decay of a compound nucleus formed by complete fusion. Incom- plete fusion or massive transfer are the main reaction mechnisms leading to production of the residues with mass number close to that of the target.

关 键 词：重离子反应 氧16 铜65 核熔合 

分 类 号：O571.4[理学—粒子物理与原子核物理]