Convergent close coupling versus the generalized Sturmian function approach: Wave-function analysis

被引：4

作者：

Ambrosio, M. ^{[1
]}

Mitnik, D. M. ^{[1
]}

Gasaneo, G. ^{[2
]}

Randazzo, J. M. ^{[3
]}

Kadyrov, A. S. ^{[4
,5
]}

Fursa, D. V. ^{[4
,5
]}

Bray, I. ^{[4
,5
]}

机构：

[1] CONICET UBA, IAFE, Buenos Aires, DF, Argentina

[2] Univ Nacl Sur, Dept Fis, RA-8000 Bahia Blanca, Buenos Aires, Argentina

[3] Ctr Atom Bariloche, Div Fis Atom Mol & Opt, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina

[4] Curtin Univ, Curtin Inst Computat, Perth, WA 6845, Australia

[5] Curtin Univ, Dept Phys & Astron, Perth, WA 6845, Australia

来源：

PHYSICAL REVIEW A | 2015年 / 92卷 / 05期

基金：

澳大利亚研究理事会;

关键词：

ELECTRON-HYDROGEN SCATTERING; IMPACT DOUBLE-IONIZATION; CROSS-SECTIONS; ATOMS; MODEL;

D O I：

10.1103/PhysRevA.92.052518

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We compare the physical information contained in the Temkin-Poet (TP) scattering wave function representing electron-impact ionization of hydrogen, calculated by the convergent close-coupling (CCC) and generalized Sturmian function (GSF) methodologies. The idea is to show that the ionization cross section can be extracted from the wave functions themselves. Using two different procedures based on hyperspherical Sturmian functions we show that the transition amplitudes contained in both GSF and CCC scattering functions lead to similar single-differential cross sections. The single-continuum channels were also a subject of the present studies, and we show that the elastic and excitation amplitudes are essentially the same as well.

引用

页数：8

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