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的实验室将研究涉及激发这些目标中的强跃迁的散射过程的细节，特别是观察入射定向电子如何赋予目标原子/分子自旋和轨道角动量。选择的目标是稀有气体(霓气、氩、氪和氙气)，分子是氢和氮，它们具有不同的电子-核耦合。这项研究还旨在研究原子靶的电离。这项研究的主旨是研究描述这种过程的基本碰撞量子物理学。这项工作更广泛的影响是，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。这样一来，他们攻读博士学位的机会就大大增加了(多数是在国内，但也有一次是在国际上)。研究培训还提供了在工业或其他实验室工作所需的技能。这些学生可以进行一线研究，并从彼此和教职员工的合作中受益。它还提供加州州立大学富勒顿分校和其他几个国内和国际的理论和实验碰撞物理项目之间的合作研究。在盐湖城举行的上一届美国物理学会-气体电子学会议上的主旨演讲中，这个小组使用数据测试碰撞模型(如最近的R矩阵B-Spline)的成功尤其突出。这种类型的数据对工业、等离子体和天体物理应用很有用。

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.