论文标题
低能电子诱导的离子对离解离与“三叶岩相互作用”的远程重型Rydberg系统
Low-energy electron-induced ion-pair dissociation to "Trilobite-resembling" long-range heavy Rydberg system
论文作者
论文摘要
我们已经使用最先进的速度图成像技术与基于飞行时间的两场质谱仪一起研究了CO的电子诱导的离子对离解动力学。从低能（25-45 eV）电子 - 分子散射中提取O $^ - $/co新生的原子阴离子片段，我们直接检测到与greene \ textit creat creat creat {et e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e eT crention {eTcreat。能量平衡需要离子对解离（IPD），位于远程（<1000 bohr Radius）重型rydberg系统中。修改后的van Brunt表达捕获偶极子出生近似的挠度用于对阴离子原子片段的角度分布（AD）进行建模。广告拟合表明，最终状态主要与$σ$对称性相关联，以及$π$对称状态的较小贡献，这些状态映射了Born-Oppenheimer潜力的三维不自然振荡。
We have studied electron-induced ion-pair dissociation dynamics of CO using the state-of-art velocity map imaging technique in combination with a time-of-flight-based two-field mass spectrometer. Extracting the characteristics for O$^-$/CO nascent atomic anionic fragments from the low energy (25 - 45 eV) electron-molecule scattering, first-time, we have directly detected the existence of S-wave resonated Trilobite resembling a novel molecular binding energy mechanism, as predicted by Greene \textit{et al.} \cite{greene2000creation}. The energy balance demands ion-pair dissociation (IPD) lie within a long-range (<1000 Bohr radius) heavy Rydberg system. Modified Van Brunt expression capturing the deflection of dipole-Born approximation is used to model the angular distributions (AD) for the anionic atomic fragments. The AD fits reveal that the final states are dominantly associated with $Σ$ symmetries and a minor contribution from $Π$ symmetric states that maps the three-dimensional unnatural oscillation of Born-Oppenheimer's potential.
