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Study of the Structure of Borromean Nucleus 17Ne

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【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

【Author】 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

【机构】 School of Physics and State Key Laboratory of Nuclear Physics and Technology,Peking University

【摘要】 In the present research, we used the 17Ne beam at 30.8 MeV/u to bombard the 43mg/cm2 12C target and measured the angular correlations between the fragments and emitted proton. In the break-up reaction of 17Ne, one-proton knockout would result in an unstable nu-cleus 16F, which would further decay by the proton emission. The measured angular correlation between the 16F momentum and the relative momentum of its decay products was compared with theoretical calculations and indicated that the valence proton in 17Ne 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 17Ne has a halo structure.

【Abstract】 In the present research, we used the 17Ne beam at 30.8 MeV/u to bombard the 43mg/cm2 12C target and measured the angular correlations between the fragments and emitted proton. In the break-up reaction of 17Ne, one-proton knockout would result in an unstable nu-cleus 16F, which would further decay by the proton emission. The measured angular correlation between the 16F momentum and the relative momentum of its decay products was compared with theoretical calculations and indicated that the valence proton in 17Ne 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 17Ne has a halo structure.

【基金】 supported by National Natural Science Foundation of China (Nos.10775005,10735010,J0730316);Chinese Major State Basic Research Development Program (2007CB815002)
  • 【文献出处】 Plasma Science and Technology ,等离子体科学与技术(英文版) , 编辑部邮箱 ,2012年05期
  • 【分类号】O571.21
  • 【下载频次】12
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