Convergent close-coupling calculations of low-energy positron-atomic-hydrogen scattering.
Convergent close-coupling calculations of low-energy positron-atomic-hydrogen scattering.
复制标题
低能正电子-原子-氢散射的收敛紧耦合计算。
DOI：
--
复制
发表时间：
1993
期刊：
影响因子：
--
通讯作者：
A. Stelbovics
中科院分区：
文献类型：
--
作者：
I. Bray;A. Stelbovics
本文将作者发展的收敛紧耦合方法应用于第一激发阈值以下正电子与氢原子的散射。在这种方法中，多通道展开的单电子态是通过对角化目标哈密顿量在一个大的拉盖尔基。它表明，这种扩展的散射波函数是足够的再现非常准确的低能量变分的结果，提供的目标状态与l15包括在扩展。
The convergent close-coupling approach developed by the authors is applied to positron scattering from atomic hydrogen below the first excitation threshold. In this approach the multichannel-expansion one-electron states are obtained by diagonalizing the target Hamiltonian in a large Laguerre basis. It is demonstrated that this expansion of the scattering wave function is sufficient to reproduce the very accurate low-energy variational results, provided target states with l15 are included in the expansions.