论文标题
预测负离子的quasibound状态
Predicting quasibound states of negative ions
论文作者
论文摘要
我们使用一种新型的高精度理论方法证明了对负离子的准频谱的准确预测。由于最近的实验，我们使用la $^ - $作为测试案例，该实验测量了归因于向Quasibound State的过渡的光检查光谱中的11个共振[C. C. [C. W. Walter等人，PRA，出版社（2020年）； ARXIV：2010.01122]。我们确定了所有观察到的共振，并在先前实验范围内预测了另一个峰。按照理论预测，在预测波长上观察到峰，从而验证了识别。相同的方法适用于多种负离子。此外，这项工作中报告的理论进步可用于大量生成各种应用所需的中性和正离子的原子过渡性能。
We demonstrated the accurate prediction of a quasibound spectrum of a negative ion using a novel high-precision theoretical approach. We used La$^-$ as a test case due to a recent experiment that measured energies of 11 resonances in its photodetachment spectrum attributed to transitions to quasibound states [C. W. Walter et al., PRA, in press (2020); arXiv:2010.01122]. We identified all of the observed resonances, and predicted one more peak just outside the range of the prior experiment. Following the theoretical prediction, the peak was observed at the predicted wavelength, validating the identification. The same approach is applicable to a wide range of negative ions. Moreover, theory advances reported in this work can be used for massive generation of atomic transition properties for neutrals and positive ions needed for a variety of applications.
