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Electron-impact dissociation of molecular hydrogen into neutral fragments

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Abstract

We present convergent close-coupling calculations of electron-impact dissociation of the ground state of molecular hydrogen into neutral fragments over the range of impact energies from 6 to 300 eV. The calculations account for dissociative excitation, excitation radiative decay dissociation, and predissociation through all bound electronic triplet states, and singlet states up to the D′ 1Πu state. An estimate is given for the contribution from the remaining bound electronic singlet states. Our results are in agreement with the recommended data of Yoon et al. [J. Phys. Chem. Ref. Data 37, 913 (2008)] in the low (6–12 eV) and high (60–70 eV) energy regions, but somewhat lower at the intermediate energies.

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Authors and Affiliations

  1. Curtin Institute for Computation and Department of Physics, Astronomy and Medical Radiation Sciences, Curtin University, Perth, Western Australia, 6102, Australia

    Liam H. Scarlett, Dmitry V. Fursa, Mark C. Zammit, Jeremy S. Savage & Igor Bray

  2. School of Physics, The University of Western Australia, Crawley, Western Australia, 6009, Australia

    Jonathan K. Tapley

  3. Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA

    Mark C. Zammit

Authors
  1. Liam H. Scarlett
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  2. Jonathan K. Tapley
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  3. Dmitry V. Fursa
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  4. Mark C. Zammit
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  5. Jeremy S. Savage
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  6. Igor Bray
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Correspondence to Liam H. Scarlett.

Additional information

Contribution to the Topical Issue “Low Energy Positron and Electron Interactions”, edited by James Sullivan, Ron White, Michael Bromley, Ilya Fabrikant, and David Cassidy.

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Scarlett, L.H., Tapley, J.K., Fursa, D.V. et al. Electron-impact dissociation of molecular hydrogen into neutral fragments. Eur. Phys. J. D 72, 34 (2018). https://doi.org/10.1140/epjd/e2017-80649-8

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  • DOI: https://doi.org/10.1140/epjd/e2017-80649-8

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