Study of the Structure of Borromean Nucleus 17^Ne

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 d...

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Published inPlasma science & technology Vol. 14; no. 5; pp. 367 - 370
Main Author 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
Format Journal Article
LanguageEnglish
Published 01.05.2012
Subjects
MeV
不稳定
外加剂
晕结构
氖
相对动量
角关联
质子发射
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ISSN1009-0630
DOI10.1088/1009-0630/14/5/04

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Summary: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.
Bibliography: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.
17^Ne, proton halo, angular correlation, knockout reaction
WANG Enhong, HUA Hui , LU Fei , YE Yanlin , LI Zhihuan, JIANG Dongxing , LI Xiangqing , GE Yucheng , ZHENG Tao , SONG Yushou （ School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China）
34-1187/TL
ISSN:1009-0630
DOI:10.1088/1009-0630/14/5/04