Study of the Structure of Borromean Nucleus ^(17)Ne  

作　　者：王恩宏 华辉 卢飞 叶沿林 李智焕 江栋兴 李湘庆 葛愉成 郑涛 宋玉收 

机构地区：[1]School of Physics and State Key Laboratory of Nuclear Physics and Technology,Peking University

出　　处：《Plasma Science and Technology》2012年第5期367-370,共4页等离子体科学和技术（英文版）

基　　金：supported by National Natural Science Foundation of China (Nos.10775005,10735010,J0730316);Chinese Major State Basic Research Development Program (2007CB815002)

摘　　要：In the present research, we used the 17^Ne beam at 30.8 MeV/u to bombard the 43 mg/cm^2 12^C target and measured the angular correlations between the fragments and emitted proton. In the break-up reaction of 17^Ne, one-proton knockout would result in an unstable nu- cleus 16^F, which would further decay by the proton emission. The measured angular correlation between the 16^F momentum and the relative momentum of its decay products was compared with theoretical calculations and indicated that the valence proton in 17^Ne has the most probability to be situated in the s1/2 orbital with a small admixture of the d5/2 orbital. The present results suggest that 17^Ne has a halo structure.In the present research, we used the 17^Ne beam at 30.8 MeV/u to bombard the 43 mg/cm^2 12^C target and measured the angular correlations between the fragments and emitted proton. In the break-up reaction of 17^Ne, one-proton knockout would result in an unstable nu- cleus 16^F, which would further decay by the proton emission. The measured angular correlation between the 16^F momentum and the relative momentum of its decay products was compared with theoretical calculations and indicated that the valence proton in 17^Ne has the most probability to be situated in the s1/2 orbital with a small admixture of the d5/2 orbital. The present results suggest that 17^Ne has a halo structure.

关 键 词：17^Ne proton halo angular correlation knockout reaction 

分 类 号：O571.21[理学—粒子物理与原子核物理]