RUI: Electron Impact Ionization of Argon and Krypton and Excitation of Resonance Transitions in Neon, Xenon and Molecular Hydrogen.

加州州立大学富勒顿分校实验低能电子碰撞小组的项目目前专注于研究与惰性稀有气体（氖、氩、氪和氙）和氢分子（也是一种闭壳分子）的电子碰撞。稀有气体靶（特别是氖和氙）的电子碰撞电离动力学去年揭示了一些非常有趣的结果。这些结果表明，在特定散射情况下，在接近阈值的电离区域（正向散射和两个出射电子中的任何一个的能量都很低），氖的电离过程似乎被电子吸入极化离子核而受到抑制。该小组针对这种效应提出了一个有趣的假设。目前正在对这一机制进行更深入的研究，并对氩和氪进行了类似的实验。未来的第二系列实验希望提供有关散射电子对稀有气体靶或氢分子与散射电子重合的角动量传递的详细信息，特别是对目前最先进的大角度散射理论进行测试。加州州立大学富勒顿分校的实验低能电子碰撞小组是一个非常活跃的小组，几乎有一半的物理系专业学生参与了研究。该小组也有很强的发表记录，本科生作者在顶级同行评审期刊上发表论文。这个项目培养的博士研究生比系里其他任何项目都要多。更广泛的影响还涉及到大量高中生以及代表性不足的妇女和少数民族学生的教育（加州州立富勒顿大学是一所全国公认的西班牙裔服务大学）。

The program of the experimental low energy electron collisions group at California State University Fullerton is currently focused on the study of electron collisions with inert rare gases (neon, argon, krypton and xenon) and molecular hydrogen (also a closed shell molecule). The dynamics of electron impact ionization of the rare gas target (specifically neon and xenon) revealed some very interesting results last year. These showed for neon that in the near-threshold ionization region in specific scattering cases (forward scattering and where the energy of either of the two outgoing electrons was very low), the process seems to be inhibited by the electron being sucked into the polarized ion-core. The group has proposed an interesting hypothesis for this effect. Presently it is delving deeper into such mechanisms, with similar experiments with argon and krypton, A second series of experiments in the future hopes to provide detailed information regarding the imparting of angular momentum by the scattering electron to the rare gas target or molecular hydrogen in coincidence with the scattered electron, especially to test state-of-art theories for large angle scattering near backward scattering angles. The experimental low energy electron collisions group at California State University Fullerton is a very active group, where almost half of the physics department's majors participate in research. The group also has a strong publication record with undergraduate student authors on papers in top peer-reviewed journals. The program generates by far more PhD-bound students than any other program in the department. Broader impacts also involve education of a significant number of high school students as well as under-represented women and minority students (California State Fullerton is a nationally recognized Hispanic serving college).