摘要
用透射法测量了能量为 79AMeV的17C在12 C反应靶上的反应截面 ;利用有限力程Glauber模型对17C的密度分布进行了分析 .由高能区 (96 5AMeV)相互作用截面数据分析认为17C具有谐振子密度分布 ,但拟合本实验结果及高能区实验数据发现 ,17C的中子密度分布中存在一个尾巴 ;假设17C密度为芯核加单粒子密度分布形式 ,分析认为17C的价中子主要处于 1d5/2 轨道 .
We have measured the reaction cross section σ R of 17 C on the carbon target at the intermediate energy of 97 A MeV by using transmission method.finite range Glauber model has been employed to investigate the density distribution of 17 C by fitting the present result and the previous result of interaction cross section σ I.By contrast with the result from the analysis of σ I,a tail in the neutron density distribution of 17 C is found necessary to interpret the present result.Considering the configuration of the valence neutron,a dominant 1d 5/2 (77±21%)occupancy is found,which is in agreement with results of momentum distribution measurements.
出处
《高能物理与核物理》
CSCD
北大核心
2004年第8期810-813,共4页
High Energy Physics and Nuclear Physics
基金
北京大学与日本理化学研究所联合培养研究生项目资助~~
