论文标题
观察负离子中电四极转变：实验和理论
Observation of an electric quadrupole transition in a negative ion: Experiment and Theory
论文作者
论文摘要
已经对原子负离子的界面状态之间的第一个直接实验观察（$ \ textit {e} $ 2）过渡。通过bi $^ - $ $^3 \ textit {p} _2 $的谐振剂通过bi $^ - $^ - $ $^3 \ textit {p} _0 $ fextit {p} _0 $良好的结构状态，在bi $^ - $ $^3 \ textit {p} _2 $中观察到了过渡。 $ \ textit {e} $ 2过渡属性是使用混合理论方法独立计算的，以说明强大的多级电子相互作用和相对论效应。实验和理论结果非常同意，为这一复杂系统提供了宝贵的新见解，并在负离子中禁止过渡。
The first direct experimental observation of an electric quadrupole ($\textit{E}$2) transition between bound states of an atomic negative ion has been made. The transition was observed in the negative ion of bismuth by resonant (1+1) photodetachment from Bi$^-$ $^3\textit{P}_2$ via excitation of the Bi$^-$ $^3\textit{P}_0$ fine structure state. The $\textit{E}$2 transition properties were independently calculated using a hybrid theoretical approach to account for the strong multi-level electron interactions and relativistic effects. The experimental and theoretical results are in excellent agreement, providing valuable new insights into this complex system and forbidden transitions in negative ions.
