Perturbation effects on lifetimes of d 3 Pi u states in H2 and D2.
Perturbation effects on lifetimes of d 3 Pi u states in H2 and D2.
复制标题
扰动对 H2 和 D2 中 d 3 Pi u 态寿命的影响。
DOI：
10.1103/physreva.48.4771
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
Sato
中科院分区：
文献类型：
--
作者：
Kiyoshima;Sato
${\mathrm{H}}_{2}$ 和 ${\mathrm{D}}_{2}$ 中 d $^{3}\mathrm{\ensuremath{\Pi}}_{\mathrm{u}}$ 态的 rovibronic 能级寿命已通过电子碰撞激发和延迟符合方法测量。观察到 $^{3}\mathrm{\ensuremath{\Pi}}_{\mathrm{u}}^{\mathrm{e}}$(v,N) 和 $^{3}\mathrm{\ensuremath{\Pi}}_{\mathrm{u}}^{\mathrm{f}}$(v,N) 子级别的生命周期之间的差异${\mathrm{H}}_{2}$ 是 d $^{3}\mathrm{\ensuremath{\Pi}}_{\mathrm{u}}^{\mathrm{f}}$(v,N) 和 $^{3}\mathrm{\ensuremath{\Sigma}}_{\mathrm{u}}^{+}$(v',N) 之间相互作用产生扰动的直接结果水平。 ${\mathrm{H}}_{2}$ 和 ${\mathrm{D}}_{2}$ 中 d $^{3}\mathrm{\ensuremath{\Pi}}_{\mathrm{u}}^{\mathrm{f}}$(v,N) 状态 N 的不同生命周期变化意味着几个 e $^{3}\mathrm{\ensuremath{\Sigma}}_{\mathrm{u}}^{+}$ 水平在 ${\mathrm{H}}_{2}$ 中预先分离，但在 ${\mathrm{D}}_{2}$ 中未分离。
Lifetimes of rovibronic levels of d $^{3}\mathrm{\ensuremath{\Pi}}_{\mathrm{u}}$ states in ${\mathrm{H}}_{2}$ and ${\mathrm{D}}_{2}$ have been measured by using the electron-impact-excitation and delayed-coincidence method. Observed differences between the lifetimes of $^{3}\mathrm{\ensuremath{\Pi}}_{\mathrm{u}}^{\mathrm{e}}$(v,N) and $^{3}\mathrm{\ensuremath{\Pi}}_{\mathrm{u}}^{\mathrm{f}}$(v,N) sublevels in ${\mathrm{H}}_{2}$ were the direct result of perturbations arising from interactions between d $^{3}\mathrm{\ensuremath{\Pi}}_{\mathrm{u}}^{\mathrm{f}}$(v,N) and $^{3}\mathrm{\ensuremath{\Sigma}}_{\mathrm{u}}^{+}$(v',N) levels. Different lifetime variation with N of the d $^{3}\mathrm{\ensuremath{\Pi}}_{\mathrm{u}}^{\mathrm{f}}$(v,N) states in ${\mathrm{H}}_{2}$ and ${\mathrm{D}}_{2}$ implied that several e $^{3}\mathrm{\ensuremath{\Sigma}}_{\mathrm{u}}^{+}$ levels were predissociated in ${\mathrm{H}}_{2}$ but not in ${\mathrm{D}}_{2}$.