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Electron (positron) impact excitation (2p state) of lithium at intermediate energies

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Abstract

In this work, studies have been carried out to investigate theoretically the electron (positron)-impact-induced 2s → 2p lithium (Li) transition at 20 and 60 eV using the coupled-channel optical method (CCOM). The inelastic differential cross sections (DCS) together with the reduced Stokes parameters (\(\bar P_1\), \(\bar P_2\), \(\bar P_3\)) and other parameters such as the alignment (γ, \(\bar P_l\)), orientation (L ⊥) and coherence parameters (P +) are reported in the present calculations. Comparison is made with other available theoretical and experimental measurements.

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Authors and Affiliations

  1. Centre for Foundation Studies in Science, University of Malaya, 50603, Kuala Lumpur, Malaysia

    M. Z. M. Kamali

  2. Institute of Mathematical Sciences, University of Malaya, 50603, Kuala Lumpur, Malaysia

    J. H. Chin & Kuru Ratnavelu

  3. Department of Physics, Faculty of Science, National University of Singapore, Singapore, Singapore

    S. Y. Ng

Authors
  1. M. Z. M. Kamali
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  2. J. H. Chin
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  3. S. Y. Ng
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  4. Kuru Ratnavelu
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Corresponding author

Correspondence to M. Z. M. Kamali.

Additional information

Contribution to the Topical Issue “Electron and Positron Induced Processes”, edited by Michael Brunger, Radu Campeanu, Masamitsu Hoshino, Oddur Ingólfsson, Paulo Limão-Vieira, Nigel Mason, Yasuyuki Nagashima and Hajime Tanuma.

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Kamali, M.Z.M., Chin, J.H., Ng, S.Y. et al. Electron (positron) impact excitation (2p state) of lithium at intermediate energies. Eur. Phys. J. D 68, 50 (2014). https://doi.org/10.1140/epjd/e2014-40716-4

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  • DOI: https://doi.org/10.1140/epjd/e2014-40716-4

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