arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1807.07862physics.atom-ph
收藏

低能电子与锂原子碰撞的$R$ -矩阵计算

$R$-matrix calculations of electron collisions with lithium atom at low energies

Michal Tarana, Roman Čurík

摘要:

本文用$R$矩阵方法计算了能量低于$3s$激发阈值的电子与锂原子碰撞的过程.在近阈值能量范围内计算的$^1S^e$、$^3S^e$和$^1P^o$相移与以前的理论研究结果非常一致。的$^3P^o$相移的阈值行为进行了准确的分析,以及位于散射能量$\sim60$ meV的共振。这里计算的相移和横截面显示了两个低于$3s$阈值的共振,这是以前没有报道过的。

英文摘要:

$R$-matrix calculations of the electron collisions with lithium atom at energies below the $3s$ excitation threshold are presented. The $^1S^e$, $^3S^e$ and $^1P^o$ phase shifts calculated in the near-threshold energy range are in excellent agreement with previous theoretical studies. The threshold behavior of the $^3P^o$ phase shift is accurately analyzed along with the resonance located at the scattering energy $\sim60$ meV. The phase shifts and cross sections calculated here show two resonances below the $3s$ threshold that have not been previously reported.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑