课题基金基金详情
中低能重粒子碰撞多电子过程理论研究
结题报告
批准号:
12004350
项目类别:
青年科学基金项目
资助金额:
24.0 万元
负责人:
高俊文
依托单位:
学科分类:
原子分子结构、碰撞与谱学
结题年份:
2023
批准年份:
2020
项目状态:
已结题
项目参与者:
高俊文
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中文摘要
重粒子碰撞过程广泛存在于天体物理、低温和聚变等离子体中,具有广泛的应用需求背景。基础研究方面,中低能碰撞过程涉及复杂的多电子、多中心和多通道耦合效应,是原子分子物理研究的挑战性问题之一。本项目拟发展多电子原子轨道强耦合理论方法并研制相应并行计算程序,有效考虑多通道耦合、多电子关联和多中心效应等。利用发展的方法和程序,系统地研究三类各具特点的碰撞体系:质子/反质子与He和Li等多电子原子碰撞; He2+与O2,N2和CO等双原子分子碰撞;反质子与H2O等多中心分子碰撞。通过上述研究,阐明重粒子碰撞不同反应过程微观机制及多通道耦合和电子关联效应的影响,对于离子-分子碰撞,我们将进一步探索电子过程动力学机制与分子靶空间取向性之间的关系。通过本项目研究,系统发展重粒子碰撞多电子过程理论方法和程序,结合相关实验,深入认识不同反应过程中电子关联机制,并为聚变和天体物理等相关领域研究提供高精度原子参数。
英文摘要
The investigation of heavy particle collisions presents a great interest in various domains such as astrophysics, plasma physics, and in the medical sciences. From a fundamental point of view, it is also of challenging importance due to the effects of static and dynamical electronic correlations, strong Coulombic interactions, multi-center features and many-channel close-coupling schemes, especially in the low and intermediate impact energy domain (100 eV/u~500keV/u). In this project, we are planning to extend the atomic-orbital close-coupling (AOCC) method to describe multi-electronic processes occurring in the course of heavy particle collisions, taking into account the strong coupling between various channels, fully electronic correlations and the multicenter character of the molecular target, in order to pave the way to go beyond the effective single-center-target approximations in quantal calculations or classical independent-electron treatments. Based on this development, we will undertake the studies of collision systems with various features: (i) proton/antiproton + He and Li collisions; (ii) He2+ + O2, N2 and CO collisions; (iii) antiproton + H2O collisions. From these investigations, we can obtain the detailed knowledge of the cross sections and reveal the underlying mechanisms giving rise to the processes considered. Furthermore, a probe for the study of multicenter effects and the influence of molecular orientations on electronic processes in ion-molecule collisions can also be provided. The goal of this project is to establish an effective method which can reach an ever achieved quality of the description of multi-electron processes occurring in heavy particle collisions and provide detailed atomic data for applications in various domains.
期刊论文列表
专著列表
科研奖励列表
会议论文列表
专利列表
DOI:10.1103/PhysRevA.103.L030803
发表时间:2021
期刊:Physical Review A
影响因子:--
作者:J. W. Gao;T. Miteva;Y. Wu;J. G. Wang;A. Dubois;N. Sisourat
通讯作者:N. Sisourat
DOI:10.1103/physreva.107.012808
发表时间:2023
期刊:Physical Review A
影响因子:--
作者:C. C. Jia;T. Kirchner;J. W. Gao;Y. Wu;J. G. Wang;N. Sisourat
通讯作者:N. Sisourat
DOI:10.1103/PhysRevA.104.032826
发表时间:2021
期刊:Physical Review A
影响因子:--
作者:J. W. Gao;Y. Y. Qi;Z. H. Yang;Z. M. Hu;Y. W. Zhang;Y. Wu;J. G. Wang;A. Dubois;N. Sisourat
通讯作者:N. Sisourat
DOI:10.3847/1538-4357/acb0c6
发表时间:2023
期刊:The Astrophysical Journal
影响因子:--
作者:J. W. Gao;Y. Y. Qi;Y. Wu;J. G. Wang
通讯作者:J. G. Wang
DOI:10.1103/physrevresearch.5.023123
发表时间:2023-05
期刊:Physical Review Research
影响因子:4.2
作者:R. Zhang;J. W. Gao;Y. Zhang;D. Guo;Y. Gao;X. L. Zhu;J. Xu;D. Zhao;S. Yan;S. Xu;S. Zhang;Y. Wu;J. G. Wang;X. Ma
通讯作者:R. Zhang;J. W. Gao;Y. Zhang;D. Guo;Y. Gao;X. L. Zhu;J. Xu;D. Zhao;S. Yan;S. Xu;S. Zhang;Y. Wu;J. G. Wang;X. Ma
高电荷态离子同中性原子分子碰撞过程理论研究
  • 批准号:
    12374229
  • 项目类别:
    面上项目
  • 资助金额:
    52万元
  • 批准年份:
    2023
  • 负责人:
    高俊文
  • 依托单位:
国内基金
海外基金