arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0904.0127physics.atom-phphysics.chem-ph
收藏

BeH ^+的解离重组

Dissociative recombination of BeH^+

J. B. Roos, M. Larsson, AA. Larson, A. E Orel

摘要:

在局域复势近似下,通过求解含时薛定谔方程,计算了BeH^+的解离复合截面。研究了共振态与里德堡态向离子基态收敛之间的耦合效应。使用从头计算电子散射和结构计算,然后通过diabatization程序提取相关的电位,耦合和自电离宽度。计算出的截面在低能量下显示出相当大的幅度,随后是以1 eV为中心的高能峰。中性态之间的电子耦合在截面中引起振荡。给出了低碰撞能下的截面的解析形式。

英文摘要:

The cross section for dissociative recombination of BeH^+ is calculated by solution of the time-dependent Schrodinger equation in the local complex potential approximation. The effects of couplings between resonant states and the Rydberg states converging to the ground state of the ion are studied. The relevant potentials, couplings and autoionization widths are extracted using ab initio electron scattering and structure calculations, followed by a diabatization procedure. The calculated cross sections shows a sizable magnitude at low energy, followed by a high-energy peak centered around 1 eV. The electronic couplings between the neutral states induce oscillations in the cross section. Analytical forms for the cross sections at low collision energies are given.

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。

↑