中子引起氘核破裂反应的实验研究

阮锡超; 欧阳晓平; 周祖英; 李霞; 蒋婧; 黄翰雄; 蒋顶悦; 仲启平; 任杰; 唐洪庆

doi:10.11804/NuclPhysRev.29.02.139

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中子引起氘核破裂反应的实验研究

阮锡超, 欧阳晓平, 周祖英, 李霞, 蒋婧, 黄翰雄, 蒋顶悦, 仲启平, 任杰, 唐洪庆

文章导航 > 原子核物理评论 > 2012 > 29(2): 139-144

阮锡超, 欧阳晓平, 周祖英, 李霞, 蒋婧, 黄翰雄, 蒋顶悦, 仲启平, 任杰, 唐洪庆. 中子引起氘核破裂反应的实验研究[J]. 原子核物理评论, 2012, 29(2): 139-144. doi: 10.11804/NuclPhysRev.29.02.139

引用本文:

RUAN Xi-chao, OUYANG Xiao-ping, ZHOU Zu-ying, LI Xia, JIANG Jing, HUANG Han-xiong, JIANG Ding-yue, ZHONG Qi-ping, REN Jie, TANG Hong-qing. Experimental Study of Neutron Induced Deuteron Breakup Reactions[J]. Nuclear Physics Review, 2012, 29(2): 139-144. doi: 10.11804/NuclPhysRev.29.02.139

Citation:

RUAN Xi-chao, OUYANG Xiao-ping, ZHOU Zu-ying, LI Xia, JIANG Jing, HUANG Han-xiong, JIANG Ding-yue, ZHONG Qi-ping, REN Jie, TANG Hong-qing. Experimental Study of Neutron Induced Deuteron Breakup Reactions[J]. Nuclear Physics Review, 2012, 29(2): 139-144. doi: 10.11804/NuclPhysRev.29.02.139

中子引起氘核破裂反应的实验研究

doi: 10.11804/NuclPhysRev.29.02.139

1.
西北核技术研究所, 陕西西安 710024; 2.中国原子能科学研究院核数据重点实验室, 北京 102413

Experimental Study of Neutron Induced Deuteron Breakup Reactions

1.
Northwest Institute of Nuclear Technology, Xi’an 710024, China;2.China Institute of Atomic Energy, Beijing 102413, China

摘要: 对25 MeV中子引起氘核破裂反应的中子中子准自由散射和17.36 MeV中子引起氘核破裂反应的中子-中子末态相互作用进行了细致的研究。首先，以小于5%的不确定度，精确测量了25 MeV中子中子准自由散射出射的中子三重微分截面。实验数据用基于现实核子核子势(CD Bonn，Argonne ??18，Nijm I和II)的理论计算配合MonteCarlo模拟进行了分析。实验结果比基于CDBonn势的理论预言高(16.0±4.6)%，进一步证实了目前的理论在中子-中子准自由散射方面还无法准确描述实验数据。其次，通过运动学非完全测量，精确测量了17.36 MeV中子引起氘核破裂反应在0°角附近出射的质子能谱，用基于现实核子核子势(CDBonn、 BonnB和Nijm I)的理论计算以及MonteCarlo模拟分析了所测得的质子能谱，确定了中子-中子散射长度ann=（-16.8±0.6） fm。 The neutronneutron (nn) quasifree scattering (QFS) at 25.0 MeV and nn final state interaction (FSI) at 17.4 MeV in the nd breakup reaction were studied in this work. First， the absolute breakup cross section was measured with an accuracy of <5 % in the nn QFS. The measured data was analyzed by MonteCarlo simulation based on modern realistic NN potentials (CDBonn， Argonne ??18， Nijm I and II). The measured data exceeds the theoretical prediction based on CDBonn by (16.0±4.6%). Second， the proton emission spectrum around 0° was measured in the nd breakup reaction at 17.4 MeV with kinematical incomplete setup. The data was analyzed by MonteCarlo simulation based on CDBonn. The nn scattering length determined in this work was ann=（-16.8±0.6） fm.
- 破裂反应 /
- 准自由散射 /
- 末态相互作用 /
- 散射长度
Abstract: The neutronneutron (nn) quasifree scattering (QFS) at 25.0 MeV and nn final state interaction (FSI) at 17.4 MeV in the nd breakup reaction were studied in this work. First， the absolute breakup cross section was measured with an accuracy of <5 % in the nn QFS. The measured data was analyzed by MonteCarlo simulation based on modern realistic NN potentials (CDBonn， Argonne ??18， Nijm I and II). The measured data exceeds the theoretical prediction based on CDBonn by (16.0±4.6%). Second， the proton emission spectrum around 0° was measured in the nd breakup reaction at 17.4 MeV with kinematical incomplete setup. The data was analyzed by MonteCarlo simulation based on CDBonn. The nn scattering length determined in this work was a nn=（-16.8±0.6） fm.
- breakup reaction /
- quasifree scattering /
- final state interaction /
- scattering length

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中子引起氘核破裂反应的实验研究

doi: 10.11804/NuclPhysRev.29.02.139

1. 西北核技术研究所, 陕西西安 710024; 2.中国原子能科学研究院核数据重点实验室, 北京 102413

收稿日期: 1900-01-01
修回日期: 1900-01-01
刊出日期: 2012-06-20

关键词:

摘要: 对25 MeV中子引起氘核破裂反应的中子中子准自由散射和17.36 MeV中子引起氘核破裂反应的中子-中子末态相互作用进行了细致的研究。首先，以小于5%的不确定度，精确测量了25 MeV中子中子准自由散射出射的中子三重微分截面。实验数据用基于现实核子核子势(CD Bonn，Argonne ??18，Nijm I和II)的理论计算配合MonteCarlo模拟进行了分析。实验结果比基于CDBonn势的理论预言高(16.0±4.6)%，进一步证实了目前的理论在中子-中子准自由散射方面还无法准确描述实验数据。其次，通过运动学非完全测量，精确测量了17.36 MeV中子引起氘核破裂反应在0°角附近出射的质子能谱，用基于现实核子核子势(CDBonn、 BonnB和Nijm I)的理论计算以及MonteCarlo模拟分析了所测得的质子能谱，确定了中子-中子散射长度ann=（-16.8±0.6） fm。 The neutronneutron (nn) quasifree scattering (QFS) at 25.0 MeV and nn final state interaction (FSI) at 17.4 MeV in the nd breakup reaction were studied in this work. First， the absolute breakup cross section was measured with an accuracy of <5 % in the nn QFS. The measured data was analyzed by MonteCarlo simulation based on modern realistic NN potentials (CDBonn， Argonne ??18， Nijm I and II). The measured data exceeds the theoretical prediction based on CDBonn by (16.0±4.6%). Second， the proton emission spectrum around 0° was measured in the nd breakup reaction at 17.4 MeV with kinematical incomplete setup. The data was analyzed by MonteCarlo simulation based on CDBonn. The nn scattering length determined in this work was ann=（-16.8±0.6） fm.

English Abstract

引用本文:

Citation:

RUAN Xi-chao, OUYANG Xiao-ping, ZHOU Zu-ying, LI Xia, JIANG Jing, HUANG Han-xiong, JIANG Ding-yue, ZHONG Qi-ping, REN Jie, TANG Hong-qing. Experimental Study of Neutron Induced Deuteron Breakup Reactions[J]. Nuclear Physics Review, 2012, 29(2): 139-144. doi: 10.11804/NuclPhysRev.29.02.139