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
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
收藏
页数:15
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