Solution of the proton-hydrogen scattering problem using a quantum-mechanical two-center convergent close-coupling method

被引：40

作者：

Abdurakhmanov, I. B. ^{[1
]}

Kadyrov, A. S. ^{[1
]}

Avazbaev, S. K. ^{[1
]}

Bray, I. ^{[1
]}

机构：

[1] Curtin Univ, Dept Phys Astron & Med Radiat Sci, GPO Box U1987, Perth, WA 6845, Australia

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2016年 / 49卷 / 11期

基金：

美国国家科学基金会; 澳大利亚研究理事会;

关键词：

proton-hydrogen collisions; close-coupling; scattering; ionization; electron capture; rearrangement; ALPHA LINE POLARIZATION; COULOMB T-MATRIX; CHARGE-TRANSFER; H+-H; ELECTRON-TRANSFER; ATOMIC-HYDROGEN; 3-BODY APPROACH; CROSS-SECTION; TRIANGLE AMPLITUDE; EXCHANGE-REACTIONS;

D O I：

10.1088/0953-4075/49/11/115203

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Details of the recently developed quantum-mechanical two-center convergent close-coupling approach (Abdurakhmanov et al 2016 J. Phys. B: At. Mol. Phys. 49 03LT01) to proton-hydrogen scattering are presented. The formulation is based on the exact (fully quantum-mechanical) three-body Schrodinger equation. The total scattering wavefunction is expanded using a two-center pseudostate basis. This allows one to include all underlying processes, namely, direct scattering and ionization, electron capture into bound and continuum states of the projectile. The off-shell integration in the coupled-channel Lippmann-Schwinger integral equations emerging from the three-body Schrodinger equation for the scattering wavefunction is taken analytically which greatly reduces computational effort. While the calculated electron capture cross sections are in a good agreement with experiment, some discrepancy exists for the ionization cross sections.

引用

页数：15

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