在独立α集团模型下对敲出反应^(16)O(p,pα)^(12)C和^(16)O(α,2α)^(12)C的研究  

Study on the^(16)O(p,pα)^(12)C and^(16)O(α,2α) ^(12)C knockout reactions according to the independent α-cluster model

作　　者：陆晓[1] 孙小军[1] 杨永栩[1] 

机构地区：[1]广西师范大学物理与电子科学系,桂林541004

出　　处：《物理学报》2003年第9期2131-2134,共4页Acta Physica Sinica

基　　金：国家自然科学基金 (批准号 :10 0 62 0 0 1;10 14 72 0 2 )资助的课题~~

摘　　要：在独立α集团模型下 ,利用扭曲波冲量近似 (DWIA) ,计算了实验室系下入射能量为 10 1 5MeV的敲出反应1 6 O(p ,pα) 1 2 C和实验室系下入射能量分别为 90MeV和 14 0MeV的敲出反应1 6 O(α ,2α) 1 2 C .得到的反应截面和谱因子与实验数据基本符合 ,比用壳模型的结果有了一定的改进 。According to the independent α cluster model, the reaction cross sections and spectroscopic factors of the reactions 16 O(p,pα) 12 C and 16 O(α,2α) 12 C at the energies of 101\^5,90 and 140 MeV have been calculated by means of distorted wave impulsion approximation. Reaction cross sections and spectroscopic factors calculated are in agreement with experimental data, and are better than the results by using shell model. This indicates that the independent α_cluster model can describe the mechanism of the reactions better.

关 键 词：独立α集团模型 敲出反应 扭曲波冲量近似 反应截面 谱因子 原子核 集团结构 

分 类 号：O641[理学—物理化学]