| 低能N6+离子与Ne原子碰撞的单电子俘获研究 |
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| 引用本文： | 许传喜,徐佳伟,朱小龙,苏茂根,赵冬梅,郭大龙,高永,张瑞田,闫顺成,张少锋,马新文.低能N6+离子与Ne原子碰撞的单电子俘获研究[J].原子核物理评论,2021,38(4):452-457. |
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| 作者姓名： | 许传喜 徐佳伟 朱小龙 苏茂根 赵冬梅 郭大龙 高永 张瑞田 闫顺成 张少锋 马新文 |
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| 作者单位： | 1.甘肃省原子分子物理与功能材料重点实验室，西北师范大学物理与电子学院，兰州 730070 |
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| 基金项目： | 国家重点研究发展计划项目(2017YFA0402400, 2017YFA0402300)；国家自然科学基金资助项目(11974358, 11934004)；中国科学院战略先导科技专项(XDB34020000) |
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| 摘 要： | 采用冷靶反冲离子动量谱仪技术，实验测量了能量为6和8.6 keV/u N6+-Ne碰撞的单电子俘获过程，得到了主量子数n分辨的态选择截面和炮弹离子的散射角分布。实验结果表明，单电子主要被俘获到n=3和n=4的态。这与分子库仑过垒模型计算的反应窗所预测的结果符合。同时，实验获得了单电子俘获到n=3和n=4量子态的角微分截面，此结果与经典模型的计算结果存在较大差别，主要原因是碰撞反应过程的多通道耦合效应。
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| 关 键 词： | 冷靶反冲离子动量谱仪 单电子俘获 态选择截面 角微分截面 |
| 收稿时间： | 2021-03-15 |
The State-selective Single Electron Capture of Low Energy N6+ Ions Colliding with Ne Atom |
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| Chuanxi XU,Jiawei XU,Xiaolong ZHU,Maogen SU,Dongmei ZHAO,Daolong GUO,Yong GAO,Ruitian ZHANG,Shuncheng YAN,Shaofeng ZHANG,Xinwen MA.The State-selective Single Electron Capture of Low Energy N6+ Ions Colliding with Ne Atom[J].Nuclear Physics Review,2021,38(4):452-457. |
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| Authors: | Chuanxi XU Jiawei XU Xiaolong ZHU Maogen SU Dongmei ZHAO Daolong GUO Yong GAO Ruitian ZHANG Shuncheng YAN Shaofeng ZHANG Xinwen MA |
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| Institution: | 1.Key Laboratory of Atomic and Molecular Physics Functional Material of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China2.Joint Laboratory of Atomic and Molecular Physics, Northwest Normal University and Institute of Modern Physics of Chinese Academy of Sciences, Lanzhou 730070, China3.Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China4.University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | By using cold target recoil ion momentum spectroscopy, we performed the single electron capture experiment between N6+ ion and Ne atom with energies of 6 and 8.6 keV/u. The n--resolved state-selective capture cross-sections and the scattering angular distributions were measured. The experimental results show the strong population of both n=3 and 4 states on the projectile, which is in good agreement with the results predicted by the reaction window calculated by the molecular coulomb over barrier model. However, the scattering angle distributions corresponding to capture to n=4 and 5 states, inconsistent with the interpretation of the classical model, the reason is mainly originated from the multi-channel coupling effect of the collision reaction process. |
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