Phase shifts of e − + Ps scatterings and photodetachment cross sections of Ps −
Phase shifts of e − + Ps scatterings and photodetachment cross sections of Ps −
复制标题
e − + Ps 散射的相移和 Ps − 的光脱离截面
DOI：
10.1103/physreva.61.032710
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发表时间：
2000
影响因子：
2.9
通讯作者：
A. Ohsaki
中科院分区：
文献类型：
--
作者：
A. Igarashi;S. Nakazaki;A. Ohsaki
紧耦合方法应用于Ps−系统。在第一激发阈值以下计算了e−+ Ps散射的散射相移和Ps−的光剥离截面。采用B样条方法求解散射方程。收敛良好的相移得到的s-，p-和d-轨道展开。光剥离截面具有良好的收敛性和近似的规范不变性。
The close-coupling method is applied to the Ps− system. The scattering phase shifts of e−+ Ps scatterings and the photodetachment cross sections of Ps− are calculated below the first excitation threshold. The scattering equations are solved using a B-spline method. Well converged phase shifts are obtained for s-, p-and d-orbital expansions. The photodetachment cross sections are in good convergence and are nearly gauge invariant.