• Triple differential cross-sections for near threshold (e, 2e) process for hydrogen

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      https://www.ias.ac.in/article/fulltext/pram/062/05/1073-1082

    • Keywords

       

      Triple differential cross-section; very close to threshold; singlet/triplet contribution; asymmetry parameter

    • Abstract

       

      The triple differential cross-sections for ionization of hydrogen at incident energies in the range 17.6 eV to 13.7 eV are calculated in the distorted-wave Born approximation in the equal energy sharing andϑab = 180° kinematics. It is found that a maximum in the cross-section, as was observed in the case of helium under similar conditions is also found here at excess energyEex ≤ 1.0 eV. This ‘maximum’ becomes more pronounced asEex decreases indicating dominance of short rangee-e correlations at these low energies. The angular distribution of the singlet and triplet partial waves and the asymmetry parameter have been analysed.

    • Author Affiliations

       

      M K Srivastava1 R K Chauhan2

      1. Institute Instrumentation Centre, Indian Institute of Technology, Roorkee - 247 667, India
      2. Department of Physics, Indian Institute of Technology, Roorkee - 247 667, India
    • Dates

       
  • Pramana – Journal of Physics | News

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