Electron Impact Ionization and Excitation of the Rare Gases and Excitation of Molecular Hydrogen and Molecular Nitrogen.

本项目将研究定向入射电子束与基本气体原子和双原子分子的受控反应。加州州立大学富勒顿分校的实验室将研究散射过程的细节，包括在这些目标中激发强跃迁，特别是研究自旋和轨道角动量如何被入射的定向电子传递到目标原子/分子上。选择的目标是稀有气体（氖、氩、氪和氙），分子是氢和氮，它们具有不同的电子-核耦合。这项研究还旨在观察原子目标的电离。这项研究的重点是研究描述这些过程的基本碰撞量子物理学。这项工作的更广泛的影响是它参与了加州州立大学富勒顿分校许多美国本科生在实验室进行的最先进的研究。然后，他们获得博士学位的机会大大增加（大部分是在国内，但有一个案例是在国际上）。研究培训还提供了在工业或其他实验室工作所需的技能。这些学生可以做前沿研究，并从彼此和教师的合作中受益。它还提供加州州立大学富勒顿分校和其他几个理论和实验碰撞物理项目之间的合作研究，无论是国内还是国际。在盐湖城举行的上一届美国物理学会-气体电子学会议的主题演讲中，该小组在测试碰撞模型（如最近的r矩阵b样条）的数据方面取得了成功。这种类型的数据对工业、等离子体和天体物理应用都很有用。

This project will concern the investigation of controlled reactions of directed incident electron beams with fundamental gaseous atoms and diatomic molecules. The laboratory at Cal State Fullerton will investigate details of the scattering process involving excitation of strong transitions in these targets specifically to look at how spin and orbital angular momentum is imparted by the incident directed electrons onto the target atoms/molecules. The targets chosen are the rare gases (neon, argon, krypton and xenon) and the molecules are hydrogen and nitrogen which have different electron-nuclear couplings. The research also aims to look at the ionization of the atomic targets. The thrust of this is to investigate the basic collision quantum physics that describes such processes. The broader impact of this work is its involvement in state of the art research of many US undergraduate students at Cal State Fullerton in the laboratory. They then have a significantly increased chance to go onto PhD programs (mostly nationally, but in one case internationally). The research training also provided skills needed for working in industry or in other laboratories. These students get to do frontline research and benefit from collaborating with each other and faculty. It also provides collaborative research between Cal State Fullerton and several other theoretical and experimental collision physics programs, both nationally and internationally. The success of this group with data that tests collision models such as (most recently) the R-matrix B-spline was especially highlighted in the keynote talk at the last American Physical Society- Gaseous Electronics Conference at Salt Lake City. Such type of data is useful for industrial, plasma and astrophysical applications.