^(16)O+^(28)Si全熔合激发函数  

Measurement of the Complete Fusion Excitation Function for the ^(16)O+^(28)Si Reaction

作　　者：郑纪文[1] 郑平子 刘国兴[1] 陈克良[1] 王素芳[1] 白兴平[1] 于暹 张焕乔[2] 许谨诚[2] 刘祖华[2] 阮明[2] 吕俊[2] 徐侃[2] 

机构地区：[1]中国科学院近代物理研究所,兰州730000 [2]中国原子能科学研究院,北京102413

出　　处：《高能物理与核物理》1992年第7期640-646,共7页High Energy Physics and Nuclear Physics

基　　金：中国科学院75重大课题所属题目;中科院科学基金

摘　　要：在50—90 MeV的能量范围内,以1.0 MeV为能量步长,测量了^(16)O+^(28)Si的全熔合激发函数。用熔合模型分析了激发函数,提取了模型参数在质心系能量小于46MeV时,激发函数存在粗结构,其峰位分别在34.5、38.5和43MeV。能量在46MeV以上时,结构逐渐消失。The complete fusion excitation function for the ^(16)O+^(28)Si reaction is measured in the range of 50—90 MeV with step of 1.0 MeV. It is analysed by using some theoretical models and the model parameters are extracted from this analysis. Gross s.tructure is found in the excitation function when E_(CM)<46MeV. The energies of peaks are 34.5, 38.5 and 43.0 MeV, respectively. The structure vanishes gradually when E_(CM)>46.0MeV.

关 键 词：O16 Si28 全熔反应 激发函数 

分 类 号：O571.4[理学—粒子物理与原子核物理]