Theoretical Study of Few-Body Processes

少体过程的理论研究

• 批准号: 1068237
• 负责人: Don Madison
• 金额: $ 27万
• 依托单位: Missouri University of Science and Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-01 至 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1068237&HistoricalAwards=false
• 关键词: Theoretical; Study; Few; Body; Processes

Collision physics is currently enjoying an incredibly exciting time as a consequence of recent new experimental advances. One of these advances is the COLTRIMS (cold-target recoil-ion momentum spectroscopy) method which can be used to obtain full three-dimensional pictures of a collision process. These 3D pictures contain very detailed information about the fundamental forces controlling nature on the atomic level and the challenge for theory is to see if our theoretical models can accurately predict what is observed experimentally. One of the most sensitive probes of the important fundamental forces is charged particle ionization of atoms/molecules. The purpose of the NSF funded work is to theoretically examine several open questions in the field of charged particle ionization of atoms and molecules for both the 3-body and 4-body problems and for both electron-impact and heavy-particle impact.There are several broader impacts for the project. (1) The students who work on this project learn analytical and numerical techniques that are valuable for a career in either academia or industry. (2) The results of this research will be disseminated broadly in leading peer-reviewed journals and presented at scientific conferences. (3) The cutting-edge research will help establish important benchmarks for future research on interactions at the atomic level and it will lead to new theoretical insight on an important topic of fundamental significance. (4) The work will provide theoretical support for at least eight experimental labs (2 NSF funded labs in the US, 2 in Germany, 1 in England, 2 in Australia, and 1 in China). (5) One component of the work is to investigate processes occurring in the constituent components of DNA with a long term objective to obtain an understanding of the effects of radiation damage on biological DNA.

由于最近新的实验进展，碰撞物理学目前正处于令人难以置信的激动人心的时期。 其中一项进步是 COLTRIMS（冷靶反冲离子动量谱）方法，可用于获取碰撞过程的完整三维图像。 这些 3D 图片包含有关在原子水平上控制自然的基本力的非常详细的信息，理论面临的挑战是看看我们的理论模型是否能够准确预测实验观察到的结果。 重要基本力最敏感的探针之一是原子/分子的带电粒子电离。 NSF 资助的工作的目的是从理论上研究原子和分子带电粒子电离领域中的几个悬而未决的问题，包括三体和四体问题以及电子撞击和重粒子撞击。该项目有几个更广泛的影响。 (1) 从事该项目的学生学习对学术界或工业界职业生涯有价值的分析和数值技术。 (2) 这项研究的结果将在领先的同行评审期刊上广泛传播，并在科学会议上发表。 （3）前沿研究将有助于为未来原子水平相互作用研究建立重要基准，并为具有根本意义的重要课题带来新的理论见解。 （4）该工作将为至少8个实验实验室（美国2个NSF资助的实验室、德国2个、英国1个、澳大利亚2个、中国1个）提供理论支持。 (5) 该工作的一个组成部分是研究 DNA 组成成分中发生的过程，长期目标是了解辐射损伤对生物 DNA 的影响。