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实验低能电子碰撞小组的计划目前专注于研究电子与惰性稀有气体(Ne、Ar、氪和氙气)和分子氢(也是封闭壳分子)的碰撞。去年，稀有气体靶(特别是霓氙靶)的电子碰撞电离动力学揭示了一些非常有趣的结果。这表明，在特定的散射情况下(前向散射，两个出射电子的能量很低)，在接近阈值的电离区，这一过程似乎受到被吸入极化离子核的电子的抑制。对于这种效应，该研究小组提出了一个有趣的假设。目前，它正在更深入地研究这种机制，与Ar和氪的类似实验一样，未来的第二系列实验希望提供关于散射电子对稀有气体靶或分子氢与散射电子相吻合的角动量传授的详细信息，特别是检验最先进的后向散射角附近大角度散射理论。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，物理系几乎一半的专业都参与了研究。该组织还拥有在同行评议的顶级期刊上发表论文的本科生作者的良好记录。到目前为止，该项目产生的博士生数量远远超过该系的任何其他项目。更广泛的影响还包括对相当数量的高中生以及代表不足的女性和少数族裔学生的教育(加利福尼亚州富勒顿是一所全国公认的拉美裔服务学院)。

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).