Low-energy electron scattering from molecular hydrogen: Excitation of the X1Σg+ to b3Σu+ transition

M. Zawadzki, R. Wright, G. Dolmat, M. F. Martin, B. Diaz, L. Hargreaves, D. Coleman, D. V. Fursa, M. C. Zammit, L. H. Scarlett, J. K. Tapley, J. S. Savage, I. Bray, and M. A. Khakoo
Phys. Rev. A 98, 062704 – Published 10 December 2018

Abstract

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 XΣg+1bΣu+3 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 H2 for which agreement between theory and experiment is found to be excellent.

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  • Received 1 September 2018

DOI:https://doi.org/10.1103/PhysRevA.98.062704

©2018 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

M. Zawadzki1, R. Wright2, G. Dolmat2, M. F. Martin2, B. Diaz2, L. Hargreaves2, D. Coleman3, D. V. Fursa4, M. C. Zammit5, L. H. Scarlett4, J. K. Tapley4, J. S. Savage4, I. Bray4, and M. A. Khakoo2,*

  • 1Atomic Physics Division, Department of Atomic, Molecular, and Optical Physics, Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, ulica Gabriela Narutowicza 11/12, 80-233 Gdańsk, Poland
  • 2Department of Physics, California State University, Fullerton, California 92831, USA
  • 3Department of Mechanical Engineering, California Polytechnic State University, San Luis Obispo, California 93407, USA
  • 4Curtin Institute for Computation and Department of Physics and Astronomy, Curtin University, Perth, Western Australia 6102, Australia
  • 5Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA

  • *mkhakoo@fullerton.edu

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Issue

Vol. 98, Iss. 6 — December 2018

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