论文标题
c（2）$^1π_U$状态RB $ _2 $。观察和检测
The C(2)$^1Π_u$ state in Rb$_2$. Observation and deperturbation
论文作者
论文摘要
我们报告了C（2）$^1π_U$电子状态在Rubidium二聚体中的系统研究，在极化标记光谱谱实验中观察到，通过C $ \ leftArow $ \ leftarrow $ x $ x $^{1}σ^{+} _ {+} _ {g} $ {g} $ trancopologuase $^$^$^$^85} $^85} $^{85} $ rb $^{87} $ rb。与周围的2 $^1σ^{+} _ {\ Mathrm {u}} $，2 $^3π_ {\ Mathrm {u}} $和3 $^3σ^{+} _ {\ Mathrm} $ {通过考虑旋转轨道和旋转相互作用的耦合通道分析，进行了驱动。势能曲线和描述异构基质元件的参数确定为核对间距离的功能。与实验精度一致，本研究的大约3000条线频率以0.07 cm $^{ - 1} $的标准偏差复制。与此同时，该模型与文献中有关的所有高分辨率实验数据一致。
We report a systematic study of the C(2)$^1Π_u$ electronic state in rubidium dimer, observed in polarization labelling spectroscopy experiment through the C $\leftarrow$ X$^{1}Σ^{+}_{g}$ transitions recorded under rotational resolution in two isotopologues $^{85}$Rb$_2$ and $^{85}$Rb$^{87}$Rb. Regularity of the vibrational progressions was distorted by numerous interactions with the surrounding 2$^1Σ^{+}_{\mathrm{u}}$, 2$^3Π_{\mathrm{u}}$ and 3$^3Σ^{+}_{\mathrm{u}}$ states. Deperturbation was performed by coupled-channels analysis taking into account spin-orbit and rotational interactions. Potential energy curves and parameters describing the off-diagonal matrix elements were determined as functions of internuclear distance. About 3000 line frequencies from the present study are reproduced with a standard deviation of 0.07 cm$^{-1}$, in agreement with the experimental accuracy. Along with this, the model is consistent with all high resolution experimental data on the involved electronic states, available in the literature.
