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：

澳大利亚研究理事会; 美国国家科学基金会;

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

共 80 条

[1] Accurate solution of the proton-hydrogen three-body scattering problem [J].

Abdurakhmanov, I. B. ;

Kadyrov, A. S. ;

Bray, I. .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2016, 49 (03)

[2] Antiproton-impact ionization of Ne, Ar, Kr, Xe, and H2O [J].

Abdurakhmanov, I. B. ;

Kadyrov, A. S. ;

Fursa, D. V. ;

Avazbaev, S. K. ;

Bailey, J. J. ;

Bray, I. .

PHYSICAL REVIEW A, 2015, 91 (02)

[3] Close-coupling approach to antiproton-impact breakup of molecular hydrogen [J].

Abdurakhmanov, I. B. ;

Kadyrov, A. S. ;

Fursa, D. V. ;

Avazbaev, S. K. ;

Bray, I. .

PHYSICAL REVIEW A, 2014, 89 (04)

[4] Target Structure-Induced Suppression of the Ionization Cross Section for Low-Energy Antiproton-Molecular Hydrogen Collisions: Theoretical Confirmation [J].

Abdurakhmanov, I. B. ;

Kadyrov, A. S. ;

Fursa, D. V. ;

Bray, I. .

PHYSICAL REVIEW LETTERS, 2013, 111 (17)

[5] Convergent close-coupling calculations of helium single ionization by antiproton impact [J].

Abdurakhmanov, I. B. ;

Kadyrov, A. S. ;

Fursa, D. V. ;

Bray, I. ;

Stelbovics, A. T. .

PHYSICAL REVIEW A, 2011, 84 (06)

[6] Differential ionization in antiproton-hydrogen collisions within the convergent-close-coupling approach [J].

Abdurakhmanov, I. B. ;

Kadyrov, A. S. ;

Bray, I. ;

Stelbovics, A. T. .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2011, 44 (16)

[7] Coupled-channel integral-equation approach to antiproton-hydrogen collisions [J].

Abdurakhmanov, I. B. ;

Kadyrov, A. S. ;

Bray, I. ;

Stelbovics, A. T. .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2011, 44 (07)

[8] AN IMPACT PARAMETER FORMALISM .2. HIGH ENERGY ELASTIC SCATTERING [J].

ADACHI, T .

PROGRESS OF THEORETICAL PHYSICS, 1966, 35 (03) :463-+

[9]

Adachi T, 1965, ROG THEOR PHYS E S, VE65, P316

[10] UNIFIED FADDEEV TREATMENT OF HIGH-ENERGY ELECTRON-CAPTURE [J].

ALSTON, S .

PHYSICAL REVIEW A, 1990, 42 (01) :331-350

← 1 2 3 4 5 6 7 8 →