论文标题
辐射电子附件旋转C $ _3 $ n通过偶极子结合状态
Radiative electron attachment to rotating C$_3$N through dipole-bound states
论文作者
论文摘要
使用精确的{\ it Ab intib}的方法研究了对电子和旋转自由度的方法，研究了大偶极矩在与低能电子相互作用的旋转中性分子中的作用。发现理论可以在最近的光编程实验中使用c $ _3 $ n $^ - $ [phys。莱特牧师。 {\ bf 127}，043001（2021）]。使用类似的理论，确定了辐射电子附着的横截面，以形成偶极结合状态的c $ _3 $ n分子。获得的横截面太小，无法解释星际介质中C $ _3 $ n $^ - $的形成，这表明它可能是由不同的过程形成的。
The role of a large dipole moment in rotating neutral molecules interacting with low-energy electrons is studied using an accurate {\it ab initio} approach accounting for electronic and rotational degrees of freedom. It is found that theory can reproduce weakly-bound (dipole-bound) states observed in a recent photodetachment experiment with C$_3$N$^-$ [Phys. Rev. Lett. {\bf 127}, 043001 (2021)]. Using a similar level of theory, the cross section for radiative electron attachment to the C$_3$N molecule, forming the dipole-bound states, was determined. The obtained cross section is too small to explain the formation of C$_3$N$^-$ in the interstellar medium, suggesting that it is likely formed by a different process.
