Low-energy electron scattering from molecular hydrogen: Excitation of the X 1Σg + to b 3Σu+ transition

被引：19

作者：

Zawadzki, M. ^{[1
]}

Wright, R. ^{[2
]}

Dolmat, G. ^{[2
]}

Martin, M. F. ^{[2
]}

Diaz, B. ^{[2
]}

Hargreaves, L. ^{[2
]}

Coleman, D. ^{[3
]}

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

Zammit, M. C. ^{[6
]}

Scarlett, L. H. ^{[4
,5
]}

Tapley, J. K. ^{[4
,5
]}

Savage, J. S. ^{[4
,5
]}

Bray, I ^{[4
,5
]}

Khakoo, M. A. ^{[2
]}

机构：

[1] Gdansk Univ Technol, Atom Phys Div, Dept Atom Mol & Opt Phys, Fac Appl Phys & Math, Ulica Gabriela Narutowicza 11-12, PL-80233 Gdansk, Poland

[2] Calif State Univ Fullerton, Dept Phys, Fullerton, CA 92831 USA

[3] Calif Polytech State Univ San Luis Obispo, Dept Mech Engn, San Luis Obispo, CA 93407 USA

[4] Curtin Univ, Curtin Inst Computat, Perth, WA 6102, Australia

[5] Curtin Univ, Dept Phys & Astron, Perth, WA 6102, Australia

[6] Los Alamos Natl Lab, Theoret Div, Los Alamos, NM 87545 USA

来源：

PHYSICAL REVIEW A | 2018年 / 98卷 / 06期

基金：

美国国家科学基金会;

关键词：

DIFFERENTIAL CROSS-SECTIONS; IMPACT EXCITATION; R-MATRIX; B3-SIGMA-U+ STATE; H-2; DISSOCIATION; IONIZATION; 3-SIGMA-U+; COLLISIONS; HELIUM;

D O I：

10.1103/PhysRevA.98.062704

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present time-of-flight differential cross-section measurements and convergent close-coupling calculations of differential cross sections for the electron-impact excitation of the X- 1 Sigma(+)(g) -> b (3)Sigma(+)(u) transition in molecular hydrogen. A part of this work was recently published [M. Zawadzki et al., Phys. Rev. A 97, 050702(R) (2018)]. In this work, agreement between theory and experiment is excellent overall, and marks a transition in electron-molecule scattering where differential scattering of excitation is found to be in such precise agreement. We also present total electron-impact excitation differential cross sections for H-2 for which agreement between theory and experiment is found to be excellent.

引用

页数：15

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