• Positron scattering from alkaline-earth elements

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    • Keywords

       

      Positron; alkaline-earth elements; static potential; optical potential; polarization potential; absorption potential; inelastic and total cross sections; Bethe plot

    • Abstract

       

      The total (elastic + inelastic) cross sections fore+ impact on alkaline-earth elements from Be to Ra are calculated by employing a complex spherical optical potential. This potential has static, polarization and absorption components. The positron energy range is from a few eV to several thousand eV. We have compared our elastic cross sections for Mg and Ca with the other available results and the agreement is good for energies above 100eV. We have also compared our absorption cross sections withe ionization cross sections at high energies where our absorption cross sections are in good accord. We have made Bethe plots fore+ scattering on these elements.

    • Author Affiliations

       

      Ritu Raizada1 K L Baluja1

      1. Department of Physics and Astrophysics, University of Delhi, Delhi - 110 007, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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