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甘林, 李志宏, 李云居, 苏俊, 郭冰, 韩治宇, 连钢, 李鑫悦, 裴常进, 谌阳平, 王友宝, 曾晟, 周勇, 李二涛. 122~125Sn中子谱因子的实验研究[J]. 原子核物理评论, 2017, 34(3): 450-453. doi: 10.11804/NuclPhysRev.34.03.450
引用本文: 甘林, 李志宏, 李云居, 苏俊, 郭冰, 韩治宇, 连钢, 李鑫悦, 裴常进, 谌阳平, 王友宝, 曾晟, 周勇, 李二涛. 122~125Sn中子谱因子的实验研究[J]. 原子核物理评论, 2017, 34(3): 450-453. doi: 10.11804/NuclPhysRev.34.03.450
GAN Lin, LI Zhihong, LI Yunju, SU Jun, GUO Bing, HAN Zhiyu, LIAN Gang, LI Xinyue, PEI Changjin, SHEN Yangping, WANG Youbao, ZENG Sheng, ZHOU Yong, LI Ertao. Experimental Study of the Neutron Spectroscopic Factors in 122~125Sn[J]. Nuclear Physics Review, 2017, 34(3): 450-453. doi: 10.11804/NuclPhysRev.34.03.450
Citation: GAN Lin, LI Zhihong, LI Yunju, SU Jun, GUO Bing, HAN Zhiyu, LIAN Gang, LI Xinyue, PEI Changjin, SHEN Yangping, WANG Youbao, ZENG Sheng, ZHOU Yong, LI Ertao. Experimental Study of the Neutron Spectroscopic Factors in 122~125Sn[J]. Nuclear Physics Review, 2017, 34(3): 450-453. doi: 10.11804/NuclPhysRev.34.03.450

122~125Sn中子谱因子的实验研究

doi: 10.11804/NuclPhysRev.34.03.450
基金项目: 国家自然科学基金资助项目(11321064,11375269);国家重点基础研究发展计划(973计划)(2013CB834406)
详细信息
    作者简介:

    甘林(1988-),男,四川内江人,博士研究生,从事原子核与粒子物理研究;E-mail:ganlin2007@foxmail.com

  • 中图分类号: O571.42

Experimental Study of the Neutron Spectroscopic Factors in 122~125Sn

Funds: National Natural Science Foundation of China (11321064, 11375269); National Basic Research Program of China(973 Program) (2013CB834406)
  • 摘要: 多个Sn同位素位于慢速中子俘获(s-)过程路径上,其中子谱因子可用于计算ASn(n,γ) A+1Sn直接辐射俘获的天体物理反应率,并可研究Sn同位素对s-过程核合成的贡献。本工作在中国原子能科学研究院HI-13串列加速器Q3D磁谱仪上,对实验室系下8°~66°范围内的122,124Sn(d,p)和(p,d)单中子转移反应角分布进行了测量。利用DWBA理论计算了转移反应角分布,并提取了122-125Sn的基态以及123,125Sn第一激发态的中子谱因子。其中,122Sn和124Sn的基态中子谱因子是首次从实验上获得。由于本工作成功鉴别开了123,125Sn的基态和第一激发态的效应,因此给出的谱因子比前人的结果更可信。


    Several Tin isotopes are on the path of slow neutron capture (s-) process, and the direct components of (n, γ) reactions can be derived from their neutron spectroscopic factors. In the present work, the angular distributions of 122,124Sn(p, d) and (d, p) reactions are obtained using the high-precision Q3D magnetic spectrograph in Beijing HI-13 tandem accelerator in China Institute of Atomic Energy. The distorted-wave Born approximation (DWBA) calculations are performed to extract the neutron spectroscopic factors of the ground state of 122-125Sn and the first excited state of 123,125Sn. The neutron spectroscopic factors of the ground state of 122Sn and 124Sn are firstly obtained in this work. As the events of the ground state and first excited state of 123,125Sn can be distinguished clearly by our experiment, the neutron spectroscopic factories of 123,125Sn are more reliable.
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出版历程
  • 收稿日期:  2016-11-20
  • 修回日期:  2017-05-13
  • 刊出日期:  2017-07-18

122~125Sn中子谱因子的实验研究

doi: 10.11804/NuclPhysRev.34.03.450
    基金项目:  国家自然科学基金资助项目(11321064,11375269);国家重点基础研究发展计划(973计划)(2013CB834406)
    作者简介:

    甘林(1988-),男,四川内江人,博士研究生,从事原子核与粒子物理研究;E-mail:ganlin2007@foxmail.com

  • 中图分类号: O571.42

摘要: 多个Sn同位素位于慢速中子俘获(s-)过程路径上,其中子谱因子可用于计算ASn(n,γ) A+1Sn直接辐射俘获的天体物理反应率,并可研究Sn同位素对s-过程核合成的贡献。本工作在中国原子能科学研究院HI-13串列加速器Q3D磁谱仪上,对实验室系下8°~66°范围内的122,124Sn(d,p)和(p,d)单中子转移反应角分布进行了测量。利用DWBA理论计算了转移反应角分布,并提取了122-125Sn的基态以及123,125Sn第一激发态的中子谱因子。其中,122Sn和124Sn的基态中子谱因子是首次从实验上获得。由于本工作成功鉴别开了123,125Sn的基态和第一激发态的效应,因此给出的谱因子比前人的结果更可信。


Several Tin isotopes are on the path of slow neutron capture (s-) process, and the direct components of (n, γ) reactions can be derived from their neutron spectroscopic factors. In the present work, the angular distributions of 122,124Sn(p, d) and (d, p) reactions are obtained using the high-precision Q3D magnetic spectrograph in Beijing HI-13 tandem accelerator in China Institute of Atomic Energy. The distorted-wave Born approximation (DWBA) calculations are performed to extract the neutron spectroscopic factors of the ground state of 122-125Sn and the first excited state of 123,125Sn. The neutron spectroscopic factors of the ground state of 122Sn and 124Sn are firstly obtained in this work. As the events of the ground state and first excited state of 123,125Sn can be distinguished clearly by our experiment, the neutron spectroscopic factories of 123,125Sn are more reliable.

English Abstract

甘林, 李志宏, 李云居, 苏俊, 郭冰, 韩治宇, 连钢, 李鑫悦, 裴常进, 谌阳平, 王友宝, 曾晟, 周勇, 李二涛. 122~125Sn中子谱因子的实验研究[J]. 原子核物理评论, 2017, 34(3): 450-453. doi: 10.11804/NuclPhysRev.34.03.450
引用本文: 甘林, 李志宏, 李云居, 苏俊, 郭冰, 韩治宇, 连钢, 李鑫悦, 裴常进, 谌阳平, 王友宝, 曾晟, 周勇, 李二涛. 122~125Sn中子谱因子的实验研究[J]. 原子核物理评论, 2017, 34(3): 450-453. doi: 10.11804/NuclPhysRev.34.03.450
GAN Lin, LI Zhihong, LI Yunju, SU Jun, GUO Bing, HAN Zhiyu, LIAN Gang, LI Xinyue, PEI Changjin, SHEN Yangping, WANG Youbao, ZENG Sheng, ZHOU Yong, LI Ertao. Experimental Study of the Neutron Spectroscopic Factors in 122~125Sn[J]. Nuclear Physics Review, 2017, 34(3): 450-453. doi: 10.11804/NuclPhysRev.34.03.450
Citation: GAN Lin, LI Zhihong, LI Yunju, SU Jun, GUO Bing, HAN Zhiyu, LIAN Gang, LI Xinyue, PEI Changjin, SHEN Yangping, WANG Youbao, ZENG Sheng, ZHOU Yong, LI Ertao. Experimental Study of the Neutron Spectroscopic Factors in 122~125Sn[J]. Nuclear Physics Review, 2017, 34(3): 450-453. doi: 10.11804/NuclPhysRev.34.03.450
参考文献 (17)

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