| 17C反应截面的测量及其密度分布分析 |
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| 引用本文： | 吴翠娥,Yamaguchi Y,Ozawa A,Tanihata I,叶沿林. 17C反应截面的测量及其密度分布分析[J]. 原子核物理评论, 2005, 22(1): 17-19. DOI: 10.11804/NuclPhysRev.22.01.017 |
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| 作者姓名： | 吴翠娥 Yamaguchi Y Ozawa A Tanihata I 叶沿林 |
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| 作者单位： | 1 北京大学物理学院技术物理系, 北京 100871;2 The Institute of Physical and Chemical Research (RIKEN), Saitama 351 0198, Japan |
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| 基金项目： | 北京大学与日本理化学研究所联合培养研究生资助项目 |
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| 摘 要： | 在日本理化学研究所的放射性束流线上用透射法测量了能量为79 MeV/u的17C在12C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. 同时拟合本实验结果及高能区的实验数据发现, 17C的中子密度分布中存在一个尾巴. 基于芯核加单粒子密度分布的假设,认为17C的价中子主要处于1d5/2轨道. We have measured the reaction cross section of 17C on a 12C target at 79 MeV/u using the transmission method. Together with previous data at high energy, we deduced the density distribution of 17C by fitting the experimental data using the finite range Glauber model. The analysis shows that a simple harmonic oscillator (HO) density is not adequate to explain consistently the present experimental data and the one at high energy simultaneously. To get a better fit of both the data, the existence of a tail in the density distribution of 17C is proposed. Based on the assumption of a core plus a single neutron, it is found that the valence neutron of 17C is mostly in the d orbital. This is in agreement with the conclusion from the measured momentum distribution.
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| 关 键 词： | 反应截面 相互作用截面 有限力程Glauber模型 密度分布 |
| 文章编号： | 1007-4627(2005)01-0017-03 |
| 收稿时间： | 1900-01-01 |
| 修稿时间： | 2004-08-16 |
Measurement of Reaction Cross Section for 17C and Study of Its Nuclear Matter Density Distribution |
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| WU Cui-e,Yamaguchi Y,Ozawa A,Tanihata I,YE Yan-lin. Measurement of Reaction Cross Section for 17C and Study of Its Nuclear Matter Density Distribution[J]. Nuclear Physics Review, 2005, 22(1): 17-19. DOI: 10.11804/NuclPhysRev.22.01.017 |
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| Authors: | WU Cui-e Yamaguchi Y Ozawa A Tanihata I YE Yan-lin |
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| Affiliation: | 1 Department of Technical Physics, School of Physics, Peking University, Beijing 100871, China;2 The Institute of Physical and Chemical Research (RIKEN), Saitama 351 0198, Japan |
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| Abstract: | We have measured the reaction cross section of ~(17)C on a ~(12)C target at 79 MeV/u using the transmission method. Together with previous data at high energy, we deduced the density distribution of ~(17)C by fitting the experimental data using the finite-range Glauber model. The analysis shows that a simple harmonic-oscillator (HO) density is not adequate to explain consistently the present experimental data and the one at high energy simultaneously. To get a better fit of both the data, the existence of a tail in the density distribution of ~(17)C is proposed. Based on the assumption of a core plus a single neutron, it is found that the valence neutron of ~(17)C is mostly in the d-orbital. This is in agreement with the conclusion from the measured momentum distribution. |
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| Keywords: | reaction cross section interaction cross section Finite-Range Glauber Model density distribution |
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